FILE NO. A02-014
Revised 3/June/2004
SERVICE MANUAL
SPLIT TYPE
RAV-SM560AT-E/RAV-SM800AT-E
RAV-SM560UT-E/RAV-SM800UT-E
RAV-SM560BT-E/RAV-SM800BT-E
RAV-SM560KRT-E/RAV-SM800KRT-E
RAV-SM560XT-E/RAV-SM800XT-E
R410A
PRINTED IN JAPAN, June,2004 ToMo
1. SPECIFICATIONS
1-1. Indoor Unit
1-1-1. 4-Way Air Discharge CassetteType
Model name
RAV-SM560UT-E
Heating Average Cooling
RAV-SM800UT-E
Heating Average
Cooling
Standard capacity (Note 1)
(kW)
5.3
5.6
7.1
8.0
(1.5 – 5.6)
(1.5 – 6.3)
(2.2 – 8.0)
(2.2–9.0)
Heating low temp. capacity (Note 1) (kW)
Energy consumption effect ratio (Cooling)
Power supply
4.9
7
3.01 [B]
3.90 [A]
3.46
3.03 [B]
3.45 [B]
3.24
1 phase 230V (220 – 240V) 50Hz
Running current
(A)
(kW)
(kW)
(%)
8.42–7.72
1.76
6.78–6.29
1.435
11.32–10.37 11.22–10.28
Electrical
Power consumption
characteristics
2.34
94
2.32
(Low temp.)
Power factor
Main unit
1.89
2.73
95
95
94
Zinc hot dipping steel plate
Appearance
Model
Panel color
Height
Width
RBC-U21PG (W) E
Ceiling Panel
(Sold separately)
Moon-white (Muncel 2.5GY 9.0/0.5)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(kg)
256
840
840
53
Main unit
Depth
Outer
dimension
Height
Width
Ceiling panel
(Sold separately)
950
950
Depth
Main unit
21
22
Total weight
Ceiling panel
4.5
Heat exchanger
Finned tubu
Soundproof/Heat-insulating material
Fan
Inflammable polyethylene foam
Turbo fan
Foamed polyethylen
1200
Fan unit
Standard air flow High (Mid./Low) (m³/h)
1050
Motor
(W)
60
Air filter
Attached ceiling panel
RBC-AMT21E
Controller (Sold separately)
Gas side
(mm)
(mm)
Ø12.7 (1/2”)
Ø6.4 (1/4”)
Ø15.9 (5/8”)
Ø9.5 (3/8”)
Connecting
Liquid side
pipe
Drain port
(Nominal dia.)
(dB•A)
25 (Polyvinyl chloride tube)
27 34
Sound level
High (Mid./Low) (Note 2)
32
29
31
28
Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based
on the reference piping. The reference piping consists of 3 m of main piping and 2 m of branch piping connected with 0
meter height.
Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in
the actual operating environment become larger than the indicated values due to the effects of external sound.
Note : Rated conditions
Cooling : Indoor air temperature 27°C DB/19°C WB, Outdoor air temperature 35°C DB
Heating : Indoor air temperature 20°C DB, Outdoor air temperature 7°C DB/6°C WB
– 3 –
• Operation characteristic curve
<Cooling>
<Heating>
14
16
14
12
10
12
RAV-SM800UT-E
RAV-SM800UT-E
10
8
6
8
6
RAV-SM560UT-E
4
2
0
RAV-SM560UT-E
4
2
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Outdoor : DB35 C
Air flow : High
Indoor : DB20 C
Outdoor : DB7 C/WB6 C
Air flow : High
Pipe length : 7.5m
230V
Pipe length : 7.5m
230V
0
0
0
15 20
40
60 70 80
100
1520
40
60
80 90 100
Compressor speed (rps)
Compressor speed (rps)
• Capacity variation ratio according to temperature
<Cooling>
<Heating>
120
110
100
90
80
70
60
50
40
30
20
10
0
105
100
95
90
85
80
75
70
65
60
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Indoor : DB20 C
55
Indoor air flow : High
Pipe length : 7.5m
Indoor air flow : High
Pipe length : 7.5m
50
-14 -12 -10 -8 -6 -4 -2
0
2
4
6
8
10
32 33 34 35 36 37 38 39 40 41 42 43
Outsoor temp. ( C)
Outsoor temp. ( C)
– 4 –
1-1-2. Concealed Duct Type
Model name
RAV-SM560BT-E
Heating Average Cooling
RAV-SM800BT-E
Heating Average
Cooling
Standard capacity (Note 1)
(kW)
5
5.6
7.1
8
(1.5 – 5.6)
(1.5 – 6.3)
(2.2 – 8.0)
(2.2–9.0)
Heating low temp. capacity (Note 1) (kW)
Energy consumption effect ratio (Cooling)
Power supply
4.6
6.2
2.60 [D]
3.27 [C]
2.94
2.73 [D]
3.21 [C]
2.97
1 phase 230V (220 – 240V) 50Hz
Running current
(A)
(kW)
(kW)
(%)
9.19–8.42
1.92
8.18–7.50
1.71
12.57–11.52 12.04–11.04
Electrical
Power consumption
characteristics
2.6
2.49
(Low temp.)
Power factor
Main unit
1.78
2.62
95
95
94
94
Zinc hot dipping steel plate
Appearance
Model
Panel color
Height
Width
——
——
Ceiling Panel
(Sold separately)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(kg)
320
Main unit
700
Depth
800 (+7.5)
——
Outer
dimension
Height
Width
Ceiling panel
——
(Sold separately)
Depth
——
Main unit
39
53
Total weight
Ceiling panel
——
Heat exchanger
Finned tubu
Soundproof/Heat-insulating material
Fan
Inflammable polyethylene foam
Turbo fan
Foamed polyethylen
Fan unit
Standard air flow High (Mid./Low) (m³/h)
840
60
1140
100
Motor
(W)
Air filter
Attached main unit
RBC-AMT21E
Controller (Sold separately)
Gas side
(mm)
(mm)
Ø12.7 (1/2”)
Ø6.4 (1/4”)
Ø15.9 (5/8”)
Ø9.5 (3/8”)
Connecting
Liquid side
pipe
Drain port
(Nominal dia.)
(dB•A)
25 (Polyvinyl chloride tube)
36 43
Sound level
High (Mid./Low) (Note 2)
42
39
40
37
Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based
on the reference piping. The reference piping consists of 3 m of main piping and 2 m of branch piping connected with 0
meter height.
Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in
the actual operating environment become larger than the indicated values due to the effects of external sound.
Note : Rated conditions
Cooling : Indoor air temperature 27°C DB/19°C WB, Outdoor air temperature 35°C DB
Heating : Indoor air temperature 20°C DB, Outdoor air temperature 7°C DB/6°C WB
– 5 –
• Operation characteristic curve
<Cooling>
<Heating>
14
16
14
12
10
12
RAV-SM800BT-E
RAV-SM800BT-E
10
8
8
6
6
RAV-SM560BT-E
4
2
0
RAV-SM560BT-E
4
2
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Outdoor : DB35 C
Air flow : High
Indoor : DB20 C
Outdoor : DB7 C/WB6 C
Air flow : High
Pipe length : 7.5m
230V
Pipe length : 7.5m
230V
0
0
0
15 20
40
60 70 80
100
1520
40
60
80 90 100
Compressor speed (rps)
Compressor speed (rps)
• Capacity variation ratio according to temperature
<Cooling>
<Heating>
120
110
100
90
80
70
60
50
40
30
20
10
0
105
100
95
90
85
80
75
70
65
60
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Indoor : DB20 C
55
Indoor air flow : High
Pipe length : 7.5m
Indoor air flow : High
Pipe length : 7.5m
50
-14 -12 -10 -8 -6 -4 -2
0
2
4
6
8
10
32 33 34 35 36 37 38 39 40 41 42 43
Outsoor temp. ( C)
Outsoor temp. ( C)
– 6 –
1-1-3. High-Wall Type
Model name
RAV-SM560KRT-E
Heating Average Cooling
RAV-SM800KRT-E
Heating Average
Cooling
Standard capacity (Note 1)
(kW)
5.1
5.6
6.7
8
(1.5 – 5.6)
(1.5 – 6.3)
(2.2 – 8.0)
(2.2–9.0)
Heating low temp. capacity (Note 1) (kW)
Energy consumption effect ratio (Cooling)
Power supply
4.9
5.8
2.93 [D]
3.29 [C]
3.11
2.46 [E]
3.00 [D]
3.24
1 phase 230V (220 – 240V) 50Hz
Running current
(A)
(kW)
(kW)
(%)
8.33–7.63
1.74
8.138–7.46
1.7
13.15–12.05 12.91–11.84
Electrical
Power consumption
characteristics
2.72
2.67
(Low temp.)
Power factor
Main unit
1.95
2.21
95
95
94
94
Pure white
Appearance
Model
Panel color
Height
Width
——
——
Ceiling Panel
(Sold separately)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(kg)
298
Main unit
998
Depth
208
Outer
dimension
Height
Width
——
Ceiling panel
——
(Sold separately)
Depth
——
Main unit
12
Total weight
Ceiling panel
——
Heat exchanger
Finned tubu
Soundproof/Heat-insulating material
Fan
Inflammable polyethylene foam
Turbo fan
Foamed polyethylen
1110
Fan unit
Standard air flow High (Mid./Low) (m³/h)
840
Motor
(W)
30
Air filter
Attached main unit
Controller (Sold separately)
Gas side
Wired remote controller RBC-AMT21E
(mm)
(mm)
Ø12.7 (1/2”)
Ø15.9 (5/8”)
Ø9.5 (3/8”)
Connecting
Liquid side
pipe
Ø6.4 (1/4”)
41
Drain port
(Nominal dia.)
(dB•A)
25 (Polyvinyl chloride tube)
36 45
Sound level
High (Mid./Low) (Note 2)
45
41
36
Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based
on the reference piping. The reference piping consists of 3 m of main piping and 2 m of branch piping connected with 0
meter height.
Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in
the actual operating environment become larger than the indicated values due to the effects of external sound.
Note : Rated conditions
Cooling : Indoor air temperature 27°C DB/19°C WB, Outdoor air temperature 35°C DB
Heating : Indoor air temperature 20°C DB, Outdoor air temperature 7°C DB/6°C WB
– 7 –
• Operation characteristic curve
<Cooling>
<Heating>
14
16
14
12
10
12
RAV-SM800KRT-E
RAV-SM800KRT-E
10
8
8
6
6
RAV-SM560KRT-E
4
2
0
RAV-SM560KRT-E
4
2
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Outdoor : DB35 C
Air flow : High
Indoor : DB20 C
Outdoor : DB7 C/WB6 C
Air flow : High
Pipe length : 7.5m
230V
Pipe length : 7.5m
230V
0
0
0
15 20
40
60 70 80
100
1520
40
60
80 90 100
Compressor speed (rps)
Compressor speed (rps)
• Capacity variation ratio according to temperature
<Cooling>
<Heating>
120
110
100
90
80
70
60
50
40
30
20
10
0
105
100
95
90
85
80
75
70
65
60
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Indoor : DB20 C
55
Indoor air flow : High
Pipe length : 7.5m
Indoor air flow : High
Pipe length : 7.5m
50
-14 -12 -10 -8 -6 -4 -2
0
2
4
6
8
10
32 33 34 35 36 37 38 39 40 41 42 43
Outsoor temp. ( C)
Outsoor temp. ( C)
– 8 –
1-1-4. Flexible Type
Model name
RAV-SM560XT-E
Heating Average Cooling
RAV-SM800XT-E
Heating Average
Cooling
Standard capacity (Note 1)
(kW)
5.1
5.6
6.7
8
(1.5 – 5.6)
(1.5 – 6.3)
(2.2 – 8.0)
(2.2–9.0)
Heating low temp. capacity (Note 1) (kW)
Energy consumption effect ratio (Cooling)
Power supply
4.9
5.8
2.93 [D]
3.29 [C]
3.11
2.46 [E]
3.00 [D]
3.24
1 phase 230V (220 – 240V) 50Hz
Running current
(A)
(kW)
(kW)
(%)
8.33–7.63
1.74
8.138–7.46
1.7
13.15–12.05 12.91–11.84
Electrical
Power consumption
characteristics
2.72
2.67
(Low temp.)
Power factor
Main unit
1.95
2.21
95
95
94
94
Pure white
Appearance
Model
Panel color
Height
Width
——
——
Ceiling Panel
(Sold separately)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(kg)
298
Main unit
998
Depth
208
Outer
dimension
Height
Width
——
Ceiling panel
——
(Sold separately)
Depth
——
Main unit
12
Total weight
Ceiling panel
——
Heat exchanger
Finned tubu
Soundproof/Heat-insulating material
Fan
Inflammable polyethylene foam
Cross flow fan
Foamed polyethylen
1110
Fan unit
Standard air flow High (Mid./Low) (m³/h)
840
Motor
(W)
30
Air filter
Attached main unit
Controller (Sold separately)
Gas side
Wired remote controller RBC-AMT21E
(mm)
(mm)
Ø12.7 (1/2”)
Ø15.9 (5/8”)
Ø9.5 (3/8”)
Connecting
Liquid side
pipe
Ø6.4 (1/4”)
Drain port
(Nominal dia.)
(dB•A)
25 (Polyvinyl chloride tube)
36 45
Sound level
High (Mid./Low) (Note 2)
39
36
41
36
Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based
on the reference piping. The reference piping consists of 3 m of main piping and 2 m of branch piping connected with 0
meter height.
Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in
the actual operating environment become larger than the indicated values due to the effects of external sound.
Note : Rated conditions
Cooling : Indoor air temperature 27°C DB/19°C WB, Outdoor air temperature 35°C DB
Heating : Indoor air temperature 20°C DB, Outdoor air temperature 7°C DB/6°C WB
– 9 –
• Operation characteristic curve
<Cooling>
<Heating>
14
14
12
10
12
RAV-SM800XT-E
RAV-SM800XT-E
10
8
8
6
6
RAV-SM560XT-E
4
2
0
RAV-SM560XT-E
4
2
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Outdoor : DB35 C
Air flow : High
Indoor : DB20 C
Outdoor : DB7 C/WB6 C
Air flow : High
Pipe length : 7.5m
230V
Pipe length : 7.5m
230V
0
0
0
15 20
40
60 70 80
100
1520
40
60
80 90 100
Compressor speed (rps)
Compressor speed (rps)
• Capacity variation ratio according to temperature
<Cooling>
<Heating>
120
110
100
90
80
70
60
50
40
30
20
10
0
105
100
95
90
85
80
75
70
65
60
• Conditions
• Conditions
Indoor : DB27 C/WB19 C
Indoor : DB20 C
55
Indoor air flow : High
Pipe length : 7.5m
Indoor air flow : High
Pipe length : 7.5m
50
-14 -12 -10 -8 -6 -4 -2
0
2
4
6
8
10
32 33 34 35 36 37 38 39 40 41 42 43
Outsoor temp. ( C)
Outsoor temp. ( C)
– 10 –
1-2. Outdoor Unit
Model name
Appearance
RAV-SM560AT-E
RAV-SM800AT-E
Silky shade (Muncel 1Y8.5/0.5)
1 phase 230V (220 – 240V) 50Hz
(Power exclusive to outdoor is required.)
Power supply
Type
Hermetic compressor
Compressor
Motor
Pole
(kW)
(kg)
1.1
1.6
4 poles
Refrigerant charged
Refrigerant control
R410A 0.9
R410A 1.5
Pulse motor valve
Standard length
20 (without additional charge)
Max. total length
Over 20m
(m)
30
50
Pipe
Add 20g/m (Max. 200g)
Add 40g/m (Max. 1200g)
Outdoor lower
Outdoor higher
(m)
(m)
30
50
Height difference
Height
Width
Depth
(mm)
(mm)
(mm)
(kg)
595
780
270
35
795
780
270
55
Outer
dimension
Total weight
Heat exchanger
Finned tube
Propeller fan
Fan
Fan unit
Standard air flow High
Motor
(m³/h)
(W)
2400
43
3400
63
Gas side
(mm)
(mm)
Ø12.7 (1/2”)
Ø6.4 (1/4”)
Ø15.9 (5/8”)
Ø9.5 (3/8”)
Connecting
pipe
Liquid side
Discharge temp. sensor
Over-current sensor
Compressor thermo.
Protection device
Sound level
(Note 2)
High (Mid./Low)
(Cooling/Heating)
(dB•A)
46/48
45/50
Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based
on the reference piping. The reference piping consists of 3 m piping connected with 0 meter height.
Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in
the actual operating environment become larger than the indicated values due to the effects of external sound.
Note : Rated conditions
Cooling : Indoor air temperature 27°C DB/19°C WB, Outdoor air temperature 35°C DB
Heating : Indoor air temperature 20°C DB, Outdoor air temperature 7°C DB/6°C WB
– 11 –
2. AIR DUCTING WORK
2-1. Static Pressure Characteristics of Each Model
Fig. 1 RAV-SM560BT-E
70% (570m³/h)
110% (925m³/h)
Standard air volume : 840m³/h
12
11
Extra HHigh tap
10
9
8
High tap
7
6
Middloeletatpap
5
4
3
Low tap
2
1
0
500
570 600
700
800
900 925
1000
Air volume (m³/hr.)
Fig. 2 RAV-SM800BT-E
Standard air volume : 1140m³/h
70% (800m³/h)
110% (1255m³/h)
12
11
10
9
Extra HHigh tap
8
High tap
7
6
Middoleletatapp
5
4
3
Low tap
2
1
0
700
800
900
1000
1100
1200 1255
1300
Air volume (m³/hr.)
– 12 –
3. CONSTRUCTION VIEWS (EXTERNAL VIEWS)
3-1. Indoor Unit
4-Way Air Discharge Cassette Type
RAV-SM560UT-E/RAV-SM800UT-E
200
860 to 910 Recommended external size
Check port
(
450)
Check port
450)
(
Standing
850 or less
Surface
under ceiling
Standing
640 or less
30
Cable draw-in port
Surface
under ceiling
Refrigerant pipe
connecting port A
270
250
Indoor unit
Refrigerant pipe
Drain up standing size
70
connecting port B
Hanging bolt M10 or W3/8
Procured locally
950 Panel external dimension
790 Hanging bolt pitch
346.5
130
256
88
Electric
Surface
under ceiling
parts box
150
Knockout
for
humidifier
Ceiling
panel
(Sold
separately)
105
Surface
under ceiling
254.5
120 97
35
840 Hanging bolt
480
227
A
B
Z view
SM560
SM800
Ø6.4
Ø9.5
Ø12.7
Ø15.9
Surface under ceiling
Surface under ceiling
– 13 –
Concealed Duct Type
RAV-SM560BT-E
750 7.5 Hanging bolt pitch
700 Dimension of main unit
170
120
2-Ø200
Discharge port flange
20
4-M10
Hanging bolt
(Procured locally)
Drain up kit
(Sold separately)
280
252
70
60
80
For hanging bolt M10
(4-12 x 25 long hole)
730
780 Ceiling opening size
75
800 Dimension of main unit
565 Hanging bolt pitch
210
25
Drain pipe connecting port
at drain up kit side
(For polyvinyl chloride pipe
(Inner dia. 32, Nominal dia. 25))
720
240
314.5
509
630
300
211
Ø125 knockout hole (Only rear side)
(For air suction)
Refrigerant pipe
connecting port
(Gas side Ø12.7)
45
130
80
6-Ø4 tapping screw lower hole Ø160
25
80
170
Refrigerant pipe
connecting port
(Liquid side Ø6.4)
Suction port canvas
Suction panel
Drain pipe connecting port
at main unit side
(For polyvinyl chloride pipe
(Inner dia. 32, Nominal dia. 25))
Panel
450
470 Ceiling opening size
2-Ø26 power supply remote
controller cord draw-out port
Check port A
450
Plane view of main unit
(Pipe side)
NOTE 1 :
For maintenance of the equipment, be sure to install
a check port A at the position as shown below.
NOTE 2 :
Using the drain up kit sold separately, drain-up by 300 (mm)
from drain pipe draw-out port of the main unit is necessary.
The drain-up over 300mm or more is impossible.
Discharge side
– 14 –
RAV-SM800BT-E
1050 7.5 Hanging bolt pitch
1000 Dimension of main unit
2-Ø200
170
120
Discharge port flange
20
252
4-M10
Hanging bolt
(Procured locally)
Drain up kit
(Sold separately)
290
290
70
60
80
For hanging bolt M10
(4-12 x 25 long hole)
1030
1050 Ceiling opening size
75
800 Dimension of main unit
565 Hanging bolt pitch
210
25
Drain pipe connecting port
at drain up kit side
(For polyvinyl chloride pipe
(Inner dia. 32, Nominal dia. 25))
720
240
314.5
509
630
300
211
Ø125 knockout hole (Only rear side)
(For air suction)
Refrigerant pipe
connecting port
(Gas side Ø12.7)
45
130
80
6-Ø4 tapping screw lower hole Ø160
25
80
170
Refrigerant pipe
connecting port
(Liquid side Ø6.4)
Suction port canvas
Suction panel
Drain pipe connecting port
at main unit side
(For polyvinyl chloride pipe
(Inner dia. 32, Nominal dia. 25))
Panel
450
470 Ceiling opening size
2-Ø26 power supply remote
controller cord draw-out port
Check port A
450
Plane view of main unit
(Pipe side)
NOTE 1 :
For maintenance of the equipment, be sure to install
a check port A at the position as shown below.
NOTE 2 :
Using the drain up kit sold separately, drain-up by 300 (mm)
from drain pipe draw-out port of the main unit is necessary.
The drain-up over 300mm or more is impossible.
Discharge side
– 15 –
High-Wall Type
RAV-SM560KRT-E/RAV-SM800KRT-E
998
Z
51
50
Pipe port from right
Discharge port
Suction port
Pipe port from left
(Knockout hole)
(Knockout hole)
75 56
Pipe port from lower side
(Knockout hole)
Z views
Drain hose
110
390
490
540
Refrigerant pipe connecting port B
Refrigerant pipe connecting port A
998
763.5
450
20
20
115
100
100
115
Position of installation plate
A
B
Liquid Side Gas Side
SM560
SM800
Ø6.4
Ø9.5
Ø12.7
Ø15.9
53 or more
53 or more
Space required for service
– 16 –
Under Ceiling/Console Type
RAV-SM560XT-E/RAV-SM800XT-E
Front panel
208
1093
Knock out system
Grille air inlet
Back body
200 Min
1093
1015
742
For stud bolt
Installation plate
Mount plate
(Ø8 – Ø10)
For stud bolt (Ø6)
450
20
20
M10 Suspention bolt
74
Ø
57
Wireless remote control
Knock out system
18
UNDER CEILING & CONSOLE INSTALLATION
– 17 –
3-2. Outdoor Unit
RAV-SM560AT-E
Drain hole (2-Ø20 x 88 long hole)
Drain hole (Ø25)
83
600
97
A legs
115.3 125
30
780
B legs
Discharge guard
Discharge guide mounting hole
(4-Ø4 embossing)
115.3
216
49.5
147
Valve cover
31
23
Earth
terminal
25
220
500 (Fan center dividing)
Charge port
31
134
Protective net mounting hole
(2-Ø4 embossing)
43
707
30
Protective net mounting hole
(4-Ø4 embossing)
Refrigerant pipe connecting port
(Ø12.7 flare at gas side)
Refrigerant pipe connecting port
(Ø6.4 flare at liquid side)
Space required for service
600
Ø11 x 14 U-
shape holes
2-Ø11 x 14 U-shape holes
(For Ø8–Ø10 anchor bolt)
600
Suction port
52
36
2-Ø6 hole
Product
external
line
R15
2-Ø6 hole
300
or more
150
R15
600
36
52
or more
Product
external line
Ø11 x 14 U-shape hole
Discharge
(Minimum
distance up to wall)
port
500
Discharge
port
Details of A legs
Details of B legs
2-Ø11 x 14 long hole
(For Ø8–Ø10 anchor bolt)
or more
– 18 –
RAV-SM800AT-E
Knockout
(For draining) Drain hole (Ø20 x 88 burring hole)
Drain hole (Ø25 burring hole)
Installation bolt hole
(Ø12 x 17 U-shape holes)
29
90
191
Suction
port
20
Part B
Suction
port
Details of B part
Details of A part
Knockout
(For draining)
Discharge
port
43
26 60
150
Part A
95
300
900
Installation bolt hole
(Ø12 x 17 U-shape holes)
314
Handles
(Both sides)
Refrigerant pipe connecting port
(Ø9.5 flare at liquid side)
Refrigerant pipe connecting port
(Ø15.9 flare at gas side)
2
60 27
96
1
Z
Discharge guide
mounting hole
(4-Ø4 embossing)
300
307
Knockout for lower piping
86
7
28
320
Z views
Space required for service
2-Ø12 x 17 U-shape holes
(For Ø8–Ø10 anchor bolt)
600
2
46
Suction port
1
150
or more
150
or more
Discharge
(Minimum
distance up to wall)
port
58
161
27
30
45
1
2
500
Discharge
port
2-Ø12 x 17 long hole
(For Ø8–Ø10 anchor bolt)
or more
400
– 19 –
4. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM
Indoor Unit/Outdoor Unit
RAV-SM560UT-E, RAV-SM560BT-E, RAV-SM560KRT-E/RAV-SM560AT-E
Indoor unit
TCJ
sensor
Air heat exchanger
TC sensor
Outer diameter of refrigerant pipe
Gas side ØA
Liquid side ØB
12.7mm
6.4mm
Refrigerant pipe
at liquid side
Outer dia. ØB
Refrigerant pipe
at gas side
Outer dia. ØA
Max
30m
Packed valve
Outer dia. ØB
Packed valve
Outer dia. ØA
Outdoor unit
PMV
(SKV-18D26)
TS sensor
TO sensor
TD sensor
Strainer
4-way valve
(VT7101D)
TE
sensor
Heat exchanger
Muffler
Ø8 multiple thread
ripple 1 row 22 stages
FP1.3 flat fin
Ø19 × L160
Distributor
Rotary compressor
(DA130A1F-23F)
R410A 0.9 kg
Cooling
Heating
Pressure
Pipe surface temperature (°C)
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Compressor
revolutions per
second (rps)
Indoor heat Outdoor heat
exchanger exchanger
Indoor
fan
(MPa)
(kg/cm²G)
Pd Ps
Discharge
Suction
Pd
Ps
(TD)
85
(TS)
15
20
7
(TC)
10
15
3
(TE)
50
57
5
*
74
72
28
84
47
110
Indoor Outdoor
Standard
Cooling Overload
Low load
3.1
3.6
0.9
2.3
3.3
1.7
0.9 31.9 8.9
1.0 37.1 10.4
HIGH
HIGH
27/19
32/24
35/–
43/–
93
0.7
9.1 7.1
20
LOW 18/15.5
–5/–
Standard
0.6 23.6 6.2
1.2 33.2 11.8
0.2 16.4 1.8
71
1
39
54
26
3
HIGH
LOW
HIGH
20/–
30.–
15/–
7/6
Heating Overload
Low load
78
20
–20
19
–22
24/18
–20/(70%)
110
4 poles are provided to this compressor.
*
The compressor frequency (Hz) measured with a clamp meter is 2 times of revolutions (rps) of the compressor.
– 20 –
Indoor Unit/Outdoor Unit
RAV-SM800UT-E, RAV-SM800BT-E, RAV-SM800KRT-E/RAV-SM800AT-E
Indoor unit
TCJ
sensor
Air heat exchanger
TC sensor
Outer diameter of refrigerant pipe
Gas side ØA
Liquid side ØB
15.9mm
9.5mm
Refrigerant pipe
at liquid side
Outer dia. ØB
Refrigerant pipe
at gas side
Outer dia. ØA
Max
50m
Packed valve
Outer dia. ØB
Packed valve
Outer dia. ØA
Pd
Ps
Outdoor unit
Modulating (PMV)
(SKV-18D26)
Strainer
TS sensor
TO sensor
TD sensor
Strainer
TE
4-way valve
(STF-0213Z)
sensor
Capillary
Muffler
Accumulator
(1500cc)
Ø3×Ø2×
Heat exchangerØ8
1 row 30 stages
FP1.3 flat fin
Ø25 × L210
L530
Ø25 × L160
Rotary compressor
(DA220A2F-20L)
R410A 1.5 kg
Cooling
Heating
Pressure
Pipe surface temperature (°C)
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Compressor
revolutions per
second (rps)
Indoor heat Outdoor heat
exchanger exchanger
Indoor
fan
(MPa)
Pd Ps
(kg/cm²G)
Pd Ps
Discharge
Suction
(TD)
86
(TS)
11
21
4
(TC)
9
(TE)
44
54
8
*
Indoor Outdoor
Standard
Cooling Overload
Low load
3.3
3.7
1.0
2.5
3.4
2.0
0.9 33.4 8.8
1.1 37.8 11.4
0.8 10.0 7.9
0.6 25.8 6.3
1.1 34.7 11.5
0.2 20.3 2.3
64
52
27
65
31
90
HIGH
HIGH
27/19
32/24
35/–
43/–
90
18
4
19
LOW 18/15.5
–5/–
Standard
67
6
42
55
34
2
HIGH
LOW
HIGH
20/–
30.–
15/–
7/6
Heating Overload
Low load
85
23
–16
16
–18
24/18
–20/(70%)
89
4 poles are provided to this compressor.
*
The compressor frequency (Hz) measured with a clamp meter is 2 times of revolutions (rps) of the compressor.
– 21 –
5. WIRING DIAGRAM
5-1. Indoor Unit
4-Way Air Discharge Cassette Type
RAV-SM560UT-E/RAV-SM800UT-E
TA
TCJ
TC
(EXCT)
1 2
1 2
1 2
1 2
1
1
2
2
1 2 3
1 2
12
CN70
(WHI)
CN34
(RED)
3 3
2 2
1 1
FS
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
CN80
(GRN)
CN73
(RED)
5
4
3
2
1
CN620
(BLU)
MCC-1402
5 5
4 4
3 3
2 2
1 1
LM1
6
5
4
3
2
1
CN33
(WHI)
CN60
(WHI)
Control P.C. Board for
Indoor Unit
5 5
4 4
3 3
2 2
1 1
5 5
4 4
3 3
2 2
1 1
CN32
(WHI)
2
1
DC20V
DC15V
DC12V
DC7V
(FAN DRIVE)
6
5
4
3
2
1
5 5
4 4
3 3
2 2
1 1
Power
supply
circuit
CN61
(YEL)
LM2
Fuse
F302
T3.15A
250V~
CN333
(WHI)
5
4
3
2
1
CN50
(WHI)
5 5
4 4
3 3
2 2
1 1
Motor
drive
BLK
WHI
CN001
(WHI)
2 2
1 1
circuit
FM
Motor
drive
circuit
CN334
(WHI)
3
2
1
Adapter for
Wireless Remote
Controller
CN309
(YEL)
1 1
2 2
3 3
4 4
5 5
BLK
BLK
3 3
2 2
1 1
CN41
(BLU)
B
A
CN1
(WHI)
2 2
1 1
Fuse
F301
RY
RY
303
BLK
302
250V~
WHI
P301
BLK
T6.3A
CN68
(BLU)
1 2 3
1 2 3
1 2 3
CN304
(GRY)
1 2 3 4 5
1 2 3 4 5
1 2
CN66
(WHI)
Wired Renote
Controller
CN67
(BLK)
RED WHI BLK
RED
WHI
Closed-end
connector
DP
1 2 3
Indoor unit
earth screw
Color
NOTE
Identification
BLK : BLACK
BLU : BLUE
FM : Fan motor
1 2 3
TA : Indoor temp. sensor
TC : Temp. sensor
Outdoor unit
earth screw
RED : RED
GRY : GRAY
PNK : PINK
GRN : GREEN
WHI : WHITE
BRW : BROWN
ORN : ORANGE
YEL : YELLOW
Serial
L N
signal
TCJ : Temp. sensor
LM1,LM2 : Louver motor
DP : Drain pump motor
FS : Float switch
Single phase
220 to 240V
50Hz
RY302 : Drain control relay
– 22 –
Concealed Duct Type
RAV-SM560BT-E/RAV-SM800BT-E
TA
TCJ
TC
PNL
1 2 3
EXCT
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2
FS
6
5
4
3
2
1
CN104 CN102 CN101
(YEL) (RED) (BLK)
CN080
(GRN)
CN073 CN070
(RED) (WHI)
CN030
(RED)
CN060
(WHI)
OPTION
3 3
2 2
1 1
CN032
(WHI)
FAN
2
1
LM
DRIVE
CN033
(GRN)
6
5
4
3
2
1
3
2
1
CN061
(YEL)
RY001
RY002
CN068
(BLU)
3 3
3 3
2 2
1 1
2 2
DP
1 1
CN074
(WHI)
TR
UL
YEL
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
1 1
2 2
1 1
2 2
6 6
5 5
4 4
3 3
2 2
1 1
L
RED
YEL
BLU
OPN
BLK
3 3 BLU 3 3
Power
supply
circuit
RY005
4 4
5 5
6 6
7 7
4 4
5 5
6 6
7 7
8 8
M
H
RY006
FM
ORN
BLK
CN075
(WHI)
BRW
RED 9 9
RC
6
5
4
3
2
1
RY007
CN083
(WHI)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
1 1
2 2
3 3
4 4
5 5
6 6
7 7
1
2
3
4
5
6
7
8
9
RED
YEL
BLU
OPN
BLK
CN050
(WHI)
Fuse
F001
T5A
RY
004
FM
B
A
2
1
2
1
3 3
2 2
1 1
CN1
250V~
BRW
CN041
(BLU)
Remote
Controller
1 2 3
CN304
(GRY)
1 2 3
1 2 3 4 5
1 2 3 4 5
1 2
CN066
(WHI)
CN067
(BLK)
CN309
(YEL)
(When selecting
high-static pressure)
RED WHI BLK
RED
WHI
Closed-end
connector
Indoor unit
earth screw
1 2 3
NOTE
FM : Fan motor
Color
1 2 3
L N
RC : Runing capacitor
TR : Transformer
Identification
BLK : BLACK
BLU : BLUE
LM : Louver motor
RED : RED
GRY : GRAY
PNK : PINK
GRN : GREEN
WHI : WHITE
BRW : BROWN
ORN : ORANGE
YEL : YELLOW
TA : Indoor temp. sensor
TC, TCJ : Indoor heat exchanger sensor
RY001 : Louver control relay
RY002 : Drain control relay
Outdoor unit
earth screw
RY005~007 : Air volume control relay
DP : Drain pump motor
– 23 –
High-Wall Type
RAV-SM560KRT-E/RAV-SM800KRT-E
SUB-CONTROL P.C. BOARD
2 1
2 1
CN12
WHI
CN01
BLK
TR
1 1
2 2
Indoor unit
Outdoor unit
(1 Phase model)
1 2
1 2
6 5 4 3 2 1
6 5 4 3 2 1
1 2 3
1 2 3
CN63
WHI
CN62 CN16
WHI
BLU
GRN&YEL
Earth
Screw
CN
240
F2
BLK
RED
CN230
1
2
3
1
2
3
L
Remote Controller
(Option)
1 2
1 2
6 5 4 3 2 1
6 5 4 3 2 1
CN61
WHI
Power Supply
220/240 50Hz
F201
T3,15A
250V~
P03
P02
CN64
WHI
CN231
N
ORG
YEL
BLU
A
B
C
A
B
C
1 1
2 2
3 3
CN02
WHI
BLK
CN223
Serial Signal
CN11
WHI
2 2
1 1
1 1 1 1
2 2 2 2
3 3 3 3
4 4 4 4
5 5 5 5
6 6 6 6
7 7 7 7
8 8 8 8
9 9 9 9
10 10 10 10
11 11 11 11
12 12 12 12
13 13 13 13
14 14 14 14
15 15 15 15
16 16 16 16
MCC-1370A
Central Centroller
Connection (Option)
X
Y
1 1
2 2
CN01
RED
CN207
WHI
BLU
6 6
LM
FM
AI-NET
P.C. BOARD
MCC-1337
PNK
5 5
YEL
4 4
OPG
3 3
RED
2 2
BRN
1 1
BLU
6 6
YEL
5 5
WHI
4 4
BLK
3 3
CN31
CN02
WHI
2 2
WHI
RED
1 1
BLU
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
CN210
WHI
BLU
BLU
BLU
BLU
BLU
BLU
BLU
BLU
WHI
1
2
3
4
5
6
7
8
Control P.C. Board for
Indoor Unit
CN14
WHI
CN213
WHI
CN25
2 1
2 1
2 1
2 1
2 1
2 1
6 5 4 3 2 1 2 1
4 3 2 1 2 1
CN04
WHI
CN05
WHI
CN20
CN13
WHI
2 1
CN50 CN06
CN21
WHI
YEL
WHI WHI
TA
TC
TCJ
Chack Code
Diagnosis
04
08
09
0C
0d
0F
11
12
97
98
99
Serial Signal Error
4-Way Valve Error
I/D Heart Exchange Error
TA Sensor Error
NOTE
F : Fuse (PCB)
FM : Fan motor
LM : Louver motor
TC Sensor Error
TA : Temperature sensor
TC : Temperature sensor
TCJ : Temperature sensor
TR : Transformer
TCJ Sensor Error
Indoor Fan Error
LED Detall
D05 Orange O/D Serial Signal Input
Indoor unit Error
D02 Green O/D Serial Signal Output
D13 Orange R/C Serial Signal Input
D11 Green R/C Serial Signal Output
LAN Comms Circuit Error
LAN Adress Setting
R/C Mis-Wiring
O/D : Outdoor
R/C : Remote Contoller
– 24 –
RAV-SM560XT-E/RAV-SM800XT-E
HEAT
EXCHANGER
SENSOR
(TCJ)
SWITCH PCB
MCC-1428B
CN101
1 2 3
FOR FLOAT SWITCH
1 2
1 2
(OPTION)
When you use float
switch you should cut J401
1 2 3
1 2 3
CN402
1 2
CN100
CN05
IC03
CN03
2 2
1 1
1 2
THERMO
SENSOR
(TA)
BLK
BLK
J401
WHI
BLU
BLU
BLU
BLU
BLU
BLU
BLU
BLU
BLU
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
CN25
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
CN13
POWER
DC12V
BLK
BLK
SUPPLY
CIRCUIT
HEAT
2 2
1 1
CN01
4
DC5V
EXCHANGER
SENSOR
(TC)
C02
DB01
2
R506
CR502
1 1
2 2
3 3
4 4
5 5
CN10
CR501
R01
WHI
WHI
1 1
2 2
3 3
4 4
5 5
6 6
C01
RY501
RED
BLK
RED
BLK
BRW
RED
ORN
YEL
PNK
BLU
1 1
2 2
3 3
4 4
5 5
6 6
CN07
5
C501
MCC-1428A
3 3
2 2
1 1
3 3
2 2
1 1
BLU
PUR
GRY
BRW
GRY
YEL
C15
IC04
R405
CR401
CN11
FAN-MOTOR
RY401
LOUVER
MOTOR
100”C
R507
R09
3
2
1
FOR DRAIN PUMP
(OPTION)
R21
CN401
FUSE
250VAC
R22
3
SG01
F01
T6.3A
P04
CN23
CN30
CN31
BLK
GRN&YEL
INDOOR
TERMINAL
INDOOR
UNIT
2
1 2 3
BLOCK
OUTDOOR
UNIT
SIMPLE CHECK POINTS FOR DIAGNOSING FAULTS
Color
Identification
BRW : BROWN
RED : RED
Check items
Diagnosis result
OPERATION Check to see if OPERATION indicator goes on and off when the main switch
1
2
3
4
5
or breaker is turned on.
indicator
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
Check the power supply voltage between 1 - 2 (Refer to the name plate.)
Chack the fluctuate voltage between 2 - 3 (DC15 to 60V)
Terminal
block
Fuse
6.3A
Check to see if the fuse blows out. (Check the varistor. : R22, R21)
PNK : PINK
ORN : ORANGE
GRN&YEL : GREEN&
YELLOW
Check the voltage at the No.8 pin on CN13 connector of the infrared receiver.
(Check the transformer and the power supply circuit of the rated voltage.)
DC 5V
GRN : GREEN
PUR : PURPLE
Check the voltage at the brown lead of the louver motor.
(Check the transformer and the power supply circuit of the rated voltage.)
DC 12V
– 25 –
5-2. Outdoor Unit
RAV-SM560AT-E
REACTOR
Q200
DB01
THERMOSTAT
FOR
COMPRESSOR
CONVERTER
MODULE
IGBT MODULE
BRW
ORN
2 1
2 1
BLU
CN500
2 1
2 1
~ ~
–
A E G
P10
+
P19
P09
P08
TE
P20
P07
P17 P18
1 1
CN600
2 2
TD
1 1
2 2
3 3
ELECTRONIC
STARTER
CN601
CT
POWER
RELAY
TO
TS
1 1
2 2
CN602
CN603
P.C. BOARD
(MCC-813)
3 2 1
3 2 1
4
1 1
2 2
3 3
–
–
–
C12
3
C13
C14
RELAY
Q300
CM
1 1
2 2
3 3
CN701
P06
COMPRESSOR
COIL FOR
4-WAY VALVE
BLK
SURGE
F04
ABSORBER
FUSE
2
T3. 15A
250V~
BLK
YEL
RED
ORN
RED
GRY
1 1
2 2
3 3
4 4
5 5
6 6
VARISTOR
PMV
FUSE
T25A
F01
2
PULSE
250V~
MODULATING
CN703
VALVE
P13
P12
P02
P03 P01
P14
CN300
P11
5 4 3 2 1
5 4 3 2 1
3 2 1
3 2 1
CN301
TERMINAL OF COMPRESSOR
BLACK (C)
2 1
2 1
PUR
WHITE (S)
1
2
3 L
1
N
FM
REACTOR
RED (R)
TO
INDOOR
UNIT
POWER
FAN MOTOR
The sign in ( ) is displayed
in the terminalcover
SUPPLY
220 to 240
50Hz
Color Identification
BLK : BLACK
BLU : BLUE
RED : RED
GRY : GRAY
PNK : PINK
GRN : GREEN
WHI : WHITE
SIMPLE CHECK POINTS FOR DIAGNOSING FAULTS
BRW : BROWN
ORN : ORANGE
YEL : YELLOW
PUR : PURPLE
Check
items
Diagnosis result
TERMINAL BLOCK
There is no supply voltage
(AC220 to 240V) between L - N , 1 - 2
There is no voltage (DC15 to 25V) 2 - 3
Power supply and connecting
cable check
1
NOTE
FUSE
CM
: Compressor
T25A 250V to fuse (F01) blown
Converter module (DB01) and
electrolytic capacitor (C12 to C14) check
IGBT module (Q200) check
Fan motor check
PMV : Pulse modulating valve
2
3
4
T3.15A 250V to fuse (F04) blown
FM
TE
TD
TO
TS
: Fan motor
: Heat exchanger Temp. Sensor
: Discharge Temp. Sensor
: Outdoor Temp. Sensor
: Suction Temp. Sensor
ELECTROLYTIC CAPACITOR VOLTAGE (C12, C13, C14)
DC320V not available between
+ – terminal of electrolytic capacitor
T25A fuse (F01) check
P.C. board and converter
module (DB01) check
IGBT : Insulated Gate Bipolar Transistor
DB01 : Converter module
: Curreut Transformer
Q300 : Fan motor driver module
INVERTER OUTPUT (Inverter and compressor connector out of position)
(Please confirm within six minutes after instructing in the drive.)
Voltage between each line of inverter side
conector pins are not equal.
CT
IGBT module and
P.C. board check
– 26 –
RAV-SM800AT-E
+
T03
CT
BU
EU
BV
EV
BW
EW
BX
BY
BZ
CN09
CN10
CN11
RED
WHI
BLK
Compressor
CM
IGBT
T04
CT
THERMOSTAT
FOR
module
COMPRESSOR
2 2
1 1
CN604
CN605
4
TE
ORN
POWER SUPPLY CIRCUIT
(FOR P.C. BOARD)
2 2
CN500
1 1
ORN
4-WAY VALVE COIL
2 2
1 1
TS
TD
GRN
Q200
F04
2
FUSE
3.15A
3 3
2
1 1
3 3
1 1
3
1
CN600
CN601
CN700
P20
YEL
BLU
C13
P19
P18
P17
3
C12
2 2
1 1
FAN MOTOR
TO
5 5
4 4
3 3
2 2
1 1
C11
F02
C10
Fan
circuit
2
CN300
CN301
FM
FUSE
15A
G
BLU
YEL
E
A
~
3 3
1 1
3 3
CN302
Converter
module
CN04
2
3 3
2 2
1 1
1 1
POWER
RELAY
F300
~
+
FUSE
T5A
BLK
WHI
BLU
RED
PNK
5 5
4 4
3 3
2 2
1 1
5 5
4 4
3 3
2 2
1 1
DB01
ORN
RY01
R05
6 6
5 5
4 4
3 3
2 2
1 1
P10
CN800
CN06
P.C. BOARD
(MCC-1359)
P11
P13
REACTOR
PMV
CN702
2 2
1 1
REACTOR
2 2
1 1
R06
2 2
1 1
2 2
1 1
CN04
ORN
BLK
WHI
RED
P12
P09
CN05
T02
CT
5 5
4 4
3 3
2 2
1 1
5 5
4 4
3 3
2 2
1 1
P08
P15
PHOTO COUPLER
BRN
CN01
P14
CN13
SUB
P.C. BOARD
(MCC-1398)
F01
2
F01
FUSE
T3.15A
VARISTOR
SURGE
ABSORBER
FUSE
2
25A
CN02
CN01
CN02
WHI
CN03
REACTOR
1 2 3
1 2 3
RED
BLK
GRY
WHI
RED
TERMINAL OF COMPRESSOR
BLACK(C)
1 2 3 L N
1
TO
POWER
WHITE(S)
The sign in ( )
is displayed
in the terminal
cover
INDOOR SUPPLY
UNIT 220-240V
~50Hz
RED(R)
SIMPLE CHECK POINTS FOR DIAGNOSING FAULTS
Check
items
Diagnosis result
TERMINAL BLOCK
There is no supply voltage
Connecting cable check
1
(AC220 to 240V) between L - N , 1 - 2
There is no voltage (DC15 to 25V) 2 - 3
FUSE
25A fuse (F01) blown, 15A fuse (F02) blown
3.15A fuse (F04) blown,
T5A fuse (F300) blown (SUB P.C. board)
T3.15A fuse (F01) blown (SUB P.C. board)
Converter module (DB01) and electrolytic
capacitor (C10 to C13) check IGBT
module (Q200) check, Fan motor check
SUB P.C. board check
2
3
4
Color Identification
ELECTROLYTIC CAPACITOR VOLTAGE (C10, C11, C12, C13)
DC320V not available between
terminal of electrolytic capacitor
BLK : BLACK
WHI : WHITE
BRN : BROWN
ORN : ORANGE
YEL : YELLOW
PUR : PURPLE
25A fuse (F01) check
+
P.C. board and coverter
module (DB01) check
BLU : BLUE
RED : RED
GRY : GRAY
PNK : PINK
GRN : GREEN
INVERTER OUTPUT (CN09, CN10, CN11)
(Please confirm within six minutes after instructing in the drive.)
Voltage between each line of inverterside
conector pins are not equal.
IGBT module and
P.C. board check
– 27 –
6. SPECIFICATIONS OF ELECTRICAL PARTS
6-1. Indoor Unit
4-Way Air Discharge Cassette Type
RAV-SM560UT-E/RAV-SM800UT-E
No.
1
Parts name
Fan motor (for indoor)
Type
Specifications
Output (Rated) 60 W, 220–240 V
10 kΩ at 25°C
SWF-230-60-1
155 mm
2
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TCJ-sensor)
Heat exchanger sensor (TC-sensor)
Float switch
3
Ø6 mm, 1200 mm
Ø6 mm, 1200 mm
FS-0218-106
ADP-1406
10 kΩ at 25°C
4
10 kΩ at 25°C
5
6
Drain pump motor
Concealed Duct Type
RAV-SM560BT-E/RAV-SM800BT-E
No.
1
Parts name
Type
Specifications
Output (Rated) 80 W, 220–240 V, 4P
Output (Rated) 80 W, 220–240 V, 4P
400WV, 5µF
Fan motor (RAV-SM800BT-E)
Fan motor (RAV-SM560BT-E)
Capacitor (RAV-SM800BT-E)
Capacitor (RAV-SM560BT-E)
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TC-sensor)
Heat exchanger sensor (TCJ-sensor)
STF-230-80-4C
STF-220-80-4C
EAG40M805UF1
CMPS400-4.0
818 mm
2
3
4
400WV, 4.0µF
5
10 kΩ at 25°C
6
Ø6 mm, 1200 mm
Ø6 mm, 1200 mm
10 kΩ at 25°C
7
10 kΩ at 25°C
High-Wall Type
RAV-SM560KRT-E/RAV-SM800KRT-E
No.
1
Parts name
Fan motor (for indoor)
Type
Specifications
ICF340-30-1
MP35EA12
Output (Rated) 30 W, 220–240 V
2
Grille motor
3
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TC-sensor)
Heat exchanger sensor (TCJ-sensor)
268 mm
10 kΩ at 25°C
4
Ø6 mm, 400 mm
Ø6 mm, 400 mm
10 kΩ at 25°C
5
RAV-SM560XT-E/RAV-SM800XT-E
No.
1
Parts name
Fan motor (for indoor)
Type
AFP-220-50-4A
MP35EA
mm
Specifications
Output (Rated) 50 W, 220–240 V
DC 12 V
2
Grille motor
3
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TC-sensor)
Heat exchanger sensor (TCJ-sensor)
10 kΩ at 25°C
4
Ø6 mm,
Ø6 mm,
mm
mm
10 kΩ at 25°C
5
– 28 –
6-2. Outdoor Unit
RAV-SM560AT-E
No.
1
Parts name
Type
Specifications
Output (Rated) 40 W
Fan motor
ICF-140-43-1
2
Compressor
DA130A1F-23F
3 phase, 4P, 1100 W
1=10 mH, 16A
10 kΩ at 25°C
3
Reactor
CH-57
—
4
Outdoor temp. sensor (To-sensor)
Heat exchanger sensor (Te-sensor)
Suction temp. sensor (Ts-sensor)
Discharge temp. sensor (Td-sensor)
Fuse (Switching power (Protect))
Fuse (Inverter, input (Current protect)
4-way valve solenoid coil
Compressor thermo. (Protection)
5
—
10 kΩ at 25°C
6
—
10 kΩ at 25°C
7
—
50 kΩ at 25°C
8
T3.15 A, AC 250 V
25 A, AC 250 V
9
10
11
STF-0108G
US-622
ON : 90 5°C, OFF : 125 4°C
RAV-SM800AT-E
No.
Parts name
Type
Specifications
Output (Rated) 63 W, 220–240 V
3 phase, 4P, 1600 W
1
2
Fan motor
Compressor
Reactor
ICF-140-63-1
DA220A2F-20L
3
CH-47
—
mH,
A
4
Outdoor temp. sensor (To-sensor)
Heat exchanger sensor (Te-sensor)
Suction temp. sensor (Ts-sensor)
Discharge temp. sensor (Td-sensor)
Fuse (Switching power (Protect))
Fuse (Inverter, input (Current protect))
4-way valve solenoid coil
10 kΩ at 25°C
10 kΩ at 25°C
10 kΩ at 25°C
50 kΩ at 25°C
T3.15 A, AC 250 V
25 A, AC 250 V
5
—
6
—
7
—
8
9
10
11
DKV-M0ZS743B0
Compressor thermo. (Protection)
ON : 90 5°C, OFF : 125 4°C
6-3. Accessory Separate Sold Parts
RBC-U21PG (W) E (Ceiling panel)
No.
1
Parts name
Type
Specifications
Motor-louver
MP24GA
DC 12 V
2
TCB-DP11E (Drain up pump)
No.
1
Parts name
Type
Specifications
Pump-drain
PJD-05230TF-1
AC 220–240 V
2
– 29 –
7. REFRIGERANT R410A
This air conditioner adopts the new refrigerant HFC
(R410A) which does not damage the ozone layer.
(6) When an air conditioning system charged with a
large volume of refrigerant is installed in a small
room, it is necessary to exercise care so that,
even when refrigerant leaks, its concentration
does not exceed the marginal level.
The working pressure of the new refrigerant R410A
is 1.6 times higher than conventional refrigerant
(R22).The refrigerating oil is also changed in
accordance with change of refrigerant, so be careful
that water, dust, and existing refrigerant or refrigerat-
ing oil are not entered in the refrigerant cycle of the
air conditioner using the new refrigerant during
installation work or servicing time.
If the refrigerant gas leakage occurs and its
concentration exceeds the marginal level, an
oxygen starvation accident may result.
(7) Be sure to carry out installation or removal
according to the installation manual.
The next section describes the precautions for air
conditioner using the new refrigerant. Conforming to
contents of the next section together with the
general cautions included in this manual, perform
the correct and safe work.
Improper installation may cause refrigeration
trouble, water leakage, electric shock, fire, etc.
(8) Unauthorized modifications to the air conditioner
may be dangerous. If a breakdown occurs
please call a qualified air conditioner technician
or electrician.
7-1. Safety During Installation/Servicing
Improper repair’s may result in water leakage,
electric shock and fire, etc.
As R410A’s pressure is about 1.6 times higher than
that of R22, improper installation/servicing may
cause a serious trouble. By using tools and materi-
als exclusive for R410A, it is necessary to carry out
installation/servicing safely while taking the following
precautions into consideration.
7-2. Refrigerant Piping Installation
7-2-1. Piping Materials and Joints Used
For the refrigerant piping installation, copper pipes
and joints are mainly used. Copper pipes and joints
suitable for the refrigerant must be chosen and
installed. Furthermore, it is necessary to use clean
copper pipes and joints whose interior surfaces are
less affected by contaminants.
(1) Never use refrigerant other than R410A in an air
conditioner which is designed to operate with
R410A.
If other refrigerant than R410A is mixed, pres-
sure in the refrigeration cycle becomes abnor-
mally high, and it may cause personal injury, etc.
by a rupture.
(1) Copper Pipes
It is necessary to use seamless copper pipes
which are made of either copper or copper alloy
and it is desirable that the amount of residual oil
is less than 40 mg/10 m. Do not use copper
pipes having a collapsed, deformed or discol-
ored portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube
may become blocked with contaminants.
(2) Confirm the used refrigerant name, and use
tools and materials exclusive for the refrigerant
R410A.
The refrigerant name R410A is indicated on the
visible place of the outdoor unit of the air condi-
tioner using R410A as refrigerant.To prevent
mischarging, the diameter of the service port
differs from that of R22.
As an air conditioner using R410A incurs
pressure higher than when using R22, it is
necessary to choose adequate materials.
(3) If a refrigeration gas leakage occurs during
installation/servicing, be sure to ventilate fully.
Thicknesses of copper pipes used with R410A
are as shown in Table 7-2-1. Never use copper
pipes thinner than 0.8 mm even when it is
available on the market.
If the refrigerant gas comes into contact with fire,
a poisonous gas may occur.
(4) When installing or removing an air conditioner,
do not allow air or moisture to remain in the
refrigeration cycle. Otherwise, pressure in the
refrigeration cycle may become abnormally high
so that a rupture or personal injury may be
caused.
(5) After completion of installation work, check to
make sure that there is no refrigeration gas
leakage.
If the refrigerant gas leaks into the room, coming
into contact with fire in the fan-driven heater,
space heater, etc., a poisonous gas may occur.
– 30 –
Table 7-2-1 Thicknesses of annealed copper pipes
Thickness (mm)
Nominal diameter
Outer diameter (mm)
R410A
0.80
R22
0.80
0.80
0.80
1.00
1/4
3/8
1/2
5/8
6.35
9.52
0.80
12.70
15.88
0.80
1.00
(2) Joints
b) Socket Joints
For copper pipes, flare joints or socket joints are
used. Prior to use, be sure to remove all con-
taminants.
Socket joints are such that they are brazed
for connections, and used mainly for thick
pipings whose diameter is larger than 20 mm.
Thicknesses of socket joints are as shown in
Table 7-2-2.
a) Flare Joints
Flare joints used to connect the copper pipes
cannot be used for pipings whose outer
diameter exceeds 20 mm. In such a case,
socket joints can be used.
Sizes of flare pipe ends, flare joint ends and
flare nuts are as shown in Tables 7-2-3 to 7-
2-6 below.
Table 7-2-2 Minimum thicknesses of socket joints
Reference outer diameter of
copper pipe jointed (mm)
Minimum joint thickness
(mm)
Nominal diameter
1/4
3/8
1/2
5/8
6.35
9.52
0.50
0.60
0.70
0.80
12.70
15.88
(1) Flare Processing Procedures and Precautions
a) Cutting the Pipe
7-2-2. Processing of Piping Materials
When performing the refrigerant piping installation,
care should be taken to ensure that water or dust
does not enter the pipe interior, that no other oil
other than lubricating oils used in the installed air
conditioner is used, and that refrigerant does not
leak. When using lubricating oils in the piping
processing, use such lubricating oils whose water
content has been removed. When stored, be sure to
seal the container with an airtight cap or any other
cover.
By means of a pipe cutter, slowly cut the pipe
so that it is not deformed.
b) Removing Burrs and Chips
If the flared section has chips or burrs,
refrigerant leakage may occur. Carefully
remove all burrs and clean the cut surface
before installation.
– 31 –
c) Insertion of Flare Nut
d) Flare Processing
Flare processing dimensions differ according
to the type of flare tool. When using a con-
ventional flare tool, be sure to secure “dimen-
sion A” by using a gauge for size adjustment.
Make certain that a clamp bar and copper
pipe have been cleaned.
By means of the clamp bar, perform the flare
processing correctly.
ØD
A
Use either a flare tool for R410A or conven-
tional flare tool.
Fig. 7-2-1 Flare processing dimensions
Table 7-2-3 Dimensions related to flare processing for R410A
A (mm)
Conventional flare tool
Outer
diameter
(mm)
Nominal
diameter
Thickness
(mm)
Flare tool for
R410A clutch type
Clutch type
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
Wing nut type
1.5 to 2.0
1/4
3/8
1/2
5/8
6.35
9.52
0.8
0.8
0.8
1.0
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
1.5 to 2.0
12.70
15.88
2.0 to 2.5
2.0 to 2.5
Table 7-2-4 Dimensions related to flare processing for R22
A (mm)
Outer
diameter
(mm)
Nominal
diameter
Thickness
(mm)
Conventional flare tool
Flare tool for
R22 clutch type
Clutch type
0.5 to 1.0
0.5 to 1.0
0.5 to 1.0
0.5 to 1.0
Wing nut type
1.0 to 1.5
1/4
3/8
1/2
5/8
6.35
9.52
0.8
0.8
0.8
1.0
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
1.0 to 1.5
12.70
15.88
1.5 to 2.0
1.5 to 2.0
Table 7-2-5 Flare and flare nut dimensions for R410A
Dimension (mm)
Nominal
diameter
Outer diameter
(mm)
Thickness
(mm)
Flare nut
width (mm)
A
B
C
D
1/4
3/8
1/2
5/8
6.35
9.52
0.8
0.8
0.8
1.0
9.1
9.2
6.5
13
20
23
25
17
22
26
29
13.2
16.6
19.7
13.5
16.0
19.0
9.7
12.70
15,88
12.9
16.0
– 32 –
Table 7-2-6 Flare and flare nut dimensions for R22
Dimension (mm)
Nominal
diameter
Outer diameter
Thickness
(mm)
Flare nut width
(mm)
(mm)
A
B
C
D
1/4
3/8
1/2
5/8
3/4
6.35
9.52
0.8
0.8
0.8
1.0
1.0
9.0
9.2
6.5
13
20
20
23
34
17
22
24
27
36
13.0
16.2
19.4
23.3
13.5
16.0
19.0
24.0
9.7
12.70
15.88
19.05
12.9
16.0
19.2
D
B
A
C
Fig. 7-2-2 Relations between flare nut and flare seal surface
When it is strong, the flare nut may crack and
may be made non-removable. When choosing
the tightening torque, comply with values
designated by manufacturers.Table 7-2-7
shows reference values.
(2) Flare Connecting Procedures and Precautions
a) Make sure that the flare and union portions
do not have any scar or dust, etc.
b) Correctly align the processed flare surface
with the union axis.
NOTE:
c) Tighten the flare with designated torque by
means of a torque wrench.The tightening
torque for R410A is the same as that for
conventional R22. Incidentally, when the
torque is weak, the gas leakage may occur.
When applying oil to the flare surface, be sure to use
oil designated by the manufacturer. If any other oil is
used, the lubricating oils may deteriorate and cause
the compressor to burn out.
Table 7-2-7 Tightening torque of flare for R410A [Reference values]
Tightening torque of torque
wrenches available on the market
N•m (kgf•cm)
Nominal
diameter
Outer diameter
(mm)
Tightening torque
N•m (kgf•cm)
1/4
3/8
1/2
5/8
6.35
9.52
14 to 18 (140 to 180)
33 to 42 (330 to 420)
50 to 62 (500 to 620)
63 to 77 (630 to 770)
16 (160), 18 (180)
42 (420)
12.70
15.88
55 (550)
65 (650)
– 33 –
7-3. Tools
7-3-1. Required Tools
The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to
prevent mixing of other refrigerant.To reinforce the pressure-resisting strength, flare processing dimensions and
opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.
The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge,
clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.
(1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
(2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
(3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
R410A
Conventional air
conditioner installation
air conditioner installation
No.
Used tool
Usage
Existence of
Whether conven- Whether new equipment
new equipment tional equipment
can be used with
for R410A
can be used
conventional refrigerant
Flare tool
Pipe flaring
Ye s
(Note 1)
‚
¡
*
Copper pipe gauge for
adjusting projection
margin
Flaring by conventional
flare tool
Ye s
Ye s
Ye s
(Note 1)
(Note 1)
*
*
Torque wrench
Connection of flare nut
ƒ
X
X
Gauge manifold
Charge hose
„
ꢀ
†
Evacuating, refrigerant
charge, run check, etc.
X
X
X
X
¡
¡
Vacuum pump adapter Vacuum evacuating
Ye s
Ye s
Electronic balance for
Refrigerant charge
refrigerant charging
‡
Refrigerant cylinder
Leakage detector
Charging cylinder
Refrigerant charge
Gas leakage check
Refrigerant charge
Ye s
Ye s
ˆ
‰
Š
X
X
X
X
¡
X
(Note 2)
(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
(Note 2) Charging cylinder for R410A is being currently developed.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary
as the general tools.
(4) Reamer
(9) Hole core drill (Ø65)
(1) Vacuum pump
Use vacuum pump by
attaching vacuum pump adapter.
(5) Pipe bender
(10) Hexagon wrench
(Opposite side 4mm)
(6) Level vial
(2) Torque wrench
(3) Pipe cutter
(11) Tape measure
(12) Metal saw
(7) Screwdriver (+, –)
(8) Spanner or Monkey wrench
Also prepare the following equipments for other installation method and run check.
(1) Clamp meter
(2) Thermometer
(3) Insulation resistance tester
(4) Electroscope
– 34 –
7-4. Recharging of Refrigerant
When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the
following steps.
Recover the refrigerant, and check no refrigerant
remains in the equipment.
When the compound gauge’s pointer has indicated
–0.1 Mpa (–76 cmHg), place the handle Low in the
fully closed position, and turn off the vacuum pump’s
power switch.
Connect the charge hose to packed valve service
port at the outdoor unit’s gas side.
Keep the status as it is for 1 to 2 minutes, and ensure
that the compound gauge’s pointer does not return.
Connect the charge hose of the vacuum pump
adapter.
Set the refrigerant cylinder to the electronic balance,
connect the connecting hose to the cylinder and the
connecting port of the electronic balance, and charge
liquid refrigerant.
Open fully both packed valves at liquid and gas
sides.
Place the handle of the gauge manifold Low in the
fully opened position, and turn on the vacuum pump’s
power switch. Then, evacuating the refrigerant in the
cycle.
(For refrigerant charging, see the figure below.)
Never charge refrigerant exceeding the specified amount.
If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.
‚
Do not carry out additional charging.
ƒ
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the
refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the
specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high
pressure, and may cause a rupture or personal injury.
(INDOOR unit)
(Liquid side)
(Gas side)
(OUTDOOR unit)
Opened
Closed
Refrigerant cylinder
(With siphon pipe)
Check valve
Open/Close valve
for charging
Service port
Electronic balance for refrigerant charging
Fig. 7-4-1 Configuration of refrigerant charging
– 35 –
Be sure to make setting so that liquid can be charged.
When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.
‚
It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.
Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the
cylinder upside down if cylinder is not equipped with siphon.
[ Cylinder with siphon ]
[ Cylinder without siphon ]
Gauge manifold
Gauge manifold
OUTDOOR unit
OUTDOOR unit
c y l i n d e r
a n t i g e r R e f r
Refrigerant
cylinder
Electronic
balance
Electronic
balance
Siphon
R410A refrigerant is HFC mixed refrigerant.
Therefore, if it is charged with gas, the composi-
tion of the charged refrigerant changes and the
characteristics of the equipment varies.
Fig. 7-4-2
7-5. Brazing of Pipes
Phosphor bronze brazing filler tends to react
with sulfur and produce a fragile compound
water solution, which may cause a gas
leakage. Therefore, use any other type of
brazing filler at a hot spring resort, etc., and
coat the surface with a paint.
‚
7-5-1. Materials for Brazing
(1) Silver brazing filler
Silver brazing filler is an alloy mainly composed
of silver and copper. It is used to join iron,
copper or copper alloy, and is relatively expen-
sive though it excels in solderability.
When performing brazing again at time of
servicing, use the same type of brazing filler.
(2) Phosphor bronze brazing filler
Phosphor bronze brazing filler is generally used
to join copper or copper alloy.
7-5-2. Flux
(1) Reason why flux is necessary
(3) Low temperature brazing filler
• By removing the oxide film and any foreign
matter on the metal surface, it assists the flow
of brazing filler.
Low temperature brazing filler is generally called
solder, and is an alloy of tin and lead. Since it is
weak in adhesive strength, do not use it for
refrigerant pipes.
• In the brazing process, it prevents the metal
surface from being oxidized.
• By reducing the brazing filler's surface tension,
the brazing filler adheres better to the treated
metal.
– 36 –
(2) Characteristics required for flux
7-5-3. Brazing
• Activated temperature of flux coincides with
the brazing temperature.
As brazing work requires sophisticated techniques,
experiences based upon a theoretical knowledge, it
must be performed by a person qualified.
• Due to a wide effective temperature range, flux
is hard to carbonize.
In order to prevent the oxide film from occurring in
the pipe interior during brazing, it is effective to
proceed with brazing while letting dry Nitrogen gas
(N2) flow.
• It is easy to remove slag after brazing.
• The corrosive action to the treated metal and
brazing filler is minimum.
• It excels in coating performance and is harm-
less to the human body.
Never use gas other than Nitrogen gas.
(1) Brazing method to prevent oxidation
As the flux works in a complicated manner as
described above, it is necessary to select an
adequate type of flux according to the type and
shape of treated metal, type of brazing filler and
brazing method, etc.
Attach a reducing valve and a flow-meter to
the Nitrogen gas cylinder.
Use a copper pipe to direct the piping mate-
rial, and attach a flow-meter to the cylinder.
‚
ƒ
(3) Types of flux
Apply a seal onto the clearance between the
piping material and inserted copper pipe for
Nitrogen in order to prevent backflow of the
Nitrogen gas.
• Noncorrosive flux
Generally, it is a compound of borax and boric
acid.
It is effective in case where the brazing tem-
perature is higher than 800°C.
When the Nitrogen gas is flowing, be sure to
keep the piping end open.
„
ꢀ
• Activated flux
Adjust the flow rate of Nitrogen gas so that it
is lower than 0.05 m³/Hr or 0.02 MPa (0.2kgf/
cm²) by means of the reducing valve.
Most of fluxes generally used for silver brazing
are this type.
It features an increased oxide film removing
capability due to the addition of compounds
such as potassium fluoride, potassium chloride
and sodium fluoride to the borax-boric acid
compound.
After performing the steps above, keep the
Nitrogen gas flowing until the pipe cools
down to a certain extent (temperature at
which pipes are touchable with hands).
†
‡
Remove the flux completely after brazing.
(4) Piping materials for brazing and used braz-
ing filler/flux
Piping
material
Used brazing
filler
Used
flux
Copper - Copper Phosphor copper Do not use
M
Flow meter
Copper - Iron
Iron - Iron
Silver
Silver
Paste flux
Vapor flux
Stop valve
Nitrogen gas
cylinder
From Nitrogen cylinder
Do not enter flux into the refrigeration cycle.
‚
When chlorine contained in the flux remains
within the pipe, the lubricating oil deteriorates.
Therefore, use a flux which does not contain
chlorine.
Pipe
Nitrogen
gas
Rubber plug
When adding water to the flux, use water
which does not contain chlorine (e.g. distilled
water or ion-exchange water).
ƒ
„
Remove the flux after brazing.
Fig. 7-5-1 Prevention of oxidation during brazing
– 37 –
8. CONTROL BLOCK DIAGRAM
8-1. Indoor Control Circuit
Main (Sub) master remote controller
Weekly timer
LCD
driver
Display
LCD
Display
LCD
Max. 8 units are connectable.*1
CPU
Display
LED
Function setup
Key switch
Function setup
Key switch
*1 Max. 7 units when network adapters
are attached
CPU
*2 Network adapters are attached to only
one unit.
CN2 CN1
DC5V
3
*
*3 Weekly timer is not connectable to the
sub remote controller.
DC5V
Remote
Power
circuit
Secondary
battery
controller
communication
circuit
Power circuit
Central control
remote controller
(Option)
Option
A
Option
#3
Indoor unit
#1
#2
B
A
B
A
B
Network adapter (Option)
Network adapter
Indoor control P.C. board (MCC-1402)
P.C. board
EEPROM
Remote
Remote
controller
communication
circuit
(MCC-1401)
controller
communication
circuit
DC20V
DC12V
DC5V
X
AI NET
communication
circuit
CPU
Y
H8/3687
TA sensor
TC sensor
TCJ sensor
Humidifier
DC5V
relay output
CPU
H8/3039
Power circuit Switch setup
Same as Same as
the left
the left
Driver
Heater relay
output
2
2
*
*
Transformer
Float input
Louver
motor
CPU
Outside
output
TMP88CH
Drain
pump
47FG
AC
Serial
send/
receive
circuit
Run
Warning
Ready
Thermo. ON
Cool
(TMP88PH
47FG)
synchronous
signal input
circuit
Fan motor
control
circuit
1 2 3
1 2 3
Indoor
fan
motor
Power
circuit
Heat
Fan
DC280V
Outdoor
unit
Outdoor
unit
Wireless remote controller kit
Sensor P.C. board (MCC-1418)
1 2 3
1 2 3
Remote
controller
communication
circuit
Temporary
operation SW
Power
circuit
DC5V
Buzzer
Receive circuit
Outdoor unit
CPU
Function
setup SW
Optional only for 4-way air
discharge cassette type models
Display LED
– 38 –
8-2. Control Specifications
No.
Item
Outline of specifications
1) Distinction of outdoor units
Remarks
1
When power
supply is reset
When the power supply is reset, the outdoors are
distinguished, and control is exchanged according to
the distinguished result.
2) Setting of speed of the indoor fan/setting whether to
adjust air direction or not.
(Only 4-way models)
Based on EEPROM data, speed of the indoor fan or
setting whether to adjust air direction or not is se-
lected.
Air speed/
Air direction adjustment
2
Operation mode 1) Based on the operation mode selecting command
selection
from the remote controller, the operation mode is
selected.
Remote controller
Outline of control
command
STOP
FAN
Air conditioner stops.
Fan operation
COOL
DRY
Cooling operation
Dry operation
HEAT
AUTO
Heating operation
• COOL/HEAT operation mode
is automatically selected by Ta
and Ts for operation.
Ta : Room temperature
Ts : Setup temperature
Tsc : Setup temperature in
cooling operation
Tsh : Setup temperature
+ Room temperature
control temperature
compensation
Ta
( C)
COOL
+1.5
(COOL ON)
Tsc
or Tsh
(COOL OFF)
HEAT
-1.5
1) Judge the selection of COOL/HEAT mode as shown
in the figure above.
When 10 minutes passed after thermostat had
been turned off, the heating operation (Thermo
OFF) is exchanged to cooling operation if Tsh
exceeds +1.5 or more.
(COOL OFF) and (COOL ON) in the figure indicate
an example.
When 10 minutes passed after thermostat had
been turned off, the cooling operation (Thermo
OFF) is exchanged to heating operation if Tsc
exceeds –1.5 or less.
2) For the automatic capacity control after judgment of
COOL/HEAT, refer to item 4.
3) For the temperature correction of room temperature
control in automatic heating operation, refer to item 3.
– 39 –
No.
Item
Outline of specifications
Remarks
3
Room
temperature
control
1) Adjustment range Remote controller setup tem-
perature (°C)
COOL/
DRY
Heating
Auto
operation operation
Wired type
18 to 29
18 to 30
18 to 29
16 to 30
18 to 29
17 to 27
Wireless type
*
: Only for 4-way air discharge cassette type
*
2) Using the item code 06, the setup temperature in
heating operation can be compensated.
Shift of suction tempera-
ture in heating operation
Setup data
0
2
4
6
Setup temp.
compensation
+0°C
+2°C
+4°C
+6°C
Setting at shipment
Setup data
2
4
5
Automatic
capacity control
(GA control)
1) Based on the difference between Ta and Ts, the
operation frequency is instructed to the outdoor unit.
Air speed
selection
1) Operation with (HH), (H), (L), or [AUTO] mode is
performed by the command from the remote controller.
HH > H > L > LL
2) When the air speed mode [AUTO] is selected, the air
speed varies by the difference between Ta and Ts.
<COOL>
Ta ( C)
A
+3.0
B
C
D
HH
+2.5
+2.0
+1.5
+1.0
(HH)
H (HH)
H (HH)
L(H)
E
+0.5
Tsc
-0.5
L(H)
L(H)
L(L)
F
G
• Controlling operation in case when thermo of remote
controller works is same as a case when thermo of
the body works.
• If the air speed has been changed once, it is not
changed for 3 minutes. However when the air volume
is exchanged, the air speed changes.
• When cooling operation has started, the air speed
selects a downward slope, that is, the high position.
• If the temperature is just on the difference boundary,
the air speed does not change.
• Mode in the parentheses indicates one in automatic
cooling operation.
– 40 –
No.
Item
Outline of specifications
Ta ( C)
(-0.5) –1.0
Remarks
5
Air speed
selection
(Continued)
<HEAT>
L(L)
L(H)
H(H)
E
D
(0)
Tsh
(+0.5) +1.0
H
(HH)
(+1.0) +2.0
(+1.5) +3.0
C
B
A
HH
(HH)
(+2.0) +4.0
Value in the parentheses indicates one when thermostat of
the remote controller works.
Value without parentheses indicates one when thermostat
of the body works.
• If the air speed has been changed once, it is not
changed for 1 minute. However when the air speed is
exchanged, the air speed changes.
• When heating operation has started, the air speed
selects a upward slope, that is, the high position.
• If the temperature is just on the difference boundary, the
air speed does not change.
• Mode in the parentheses indicates one in automatic
heating operation.
• In Tc ≥ 60°C, the air speed increases by 1 step.
<Operation of duct only>
Standard
High ceiling
SM560
SM800
Tap
Revolutions per
minute (rpm)
COOL HEAT COOL HEAT
UL
L
UL
FD
FD
FB
FA
F9
F8
F7
F6
F5
F4
F3
F2
F1
320
320
330
350
360
370
400
410
420
440
480
530
580
320
330
340
360
370
380
410
440
450
480
500
540
580
Tc: Indoor heat exchanger
sensor temperature
L+
L
L+
M
M
UL
L
UL
L
M+
H
M+
L+
L+
H
M+,M M+,M
H
H
3) In heating operation, the mode changes to [UL] if
thermostat is turned off.
[PRE-HEAT] display
4) If Ta ≥ 25°C when heating operation has started and
when defrost operation has been cleared, it operates
with HIGH (H) mode or (HH) for 1 minute from when Tc
has entered in E zone of cool air discharge preventive
control (Item 6).
F5
F4
Tc
( C)
47
5) In automatic cooling/heating operation, the revolution
frequency of [HH] is set larger than that in the standard
cooling/heating operation. However the revolution
frequency is restricted in the automatic heating opera-
tion as shown in the following figure.
42
F5
– 41 –
No.
Item
Cool air
discharge
preventive
control
Outline of specifications
Remarks
6
1) In heating operation, the indoor fan is controlled based In D or E zone, the priority
on the detected temperature of Tc sensor or Tcj sensor. is given to setup of air
As shown below, the
upper limit of the
revolution frequency
is determined.
volume exchange.
In A and B zones,
[PRE-HEAT] is displayed.
Tc
( C)
32
Tcj
HH
H
30
L
E zone
D zone
28
UL
26
OFF
C zone
B zone
A zone
20
16
7
Freeze preven- 1) The cooling operation (including Dry operation) is
Tcj : Indoor heat ex-
changer sensor
temperature
tive control
performed as follows based on the detected tempera-
ture of Tc sensor or Tcj sensor.
(Low tempera-
ture release)
When [J] zone is detected for 6 minutes (Following
figure), the commanded frequency is decreased from
the real operation frequency. After then the commanded
frequency changes every 30 seconds while operation is
performed in [J] zone.
In [K] zone, time counting is interrupted and the opera-
tion is held.
When [I] zone is detected, the timer is cleared and the
operation returns to the normal operation.
If the commanded frequency becomes S0 because the
operation continues in [J] zone, the return temperature
A is raised from 5°C to 12°C until [I] zone is detected
and the indoor fan
operates with [M] mode.
( C)
A
5
2
I
K
J
In heating operation, the freeze-preventive control
works if 4-way valve is not exchanged and the condition
is satisfied. (However the temperature for J zone
dashing control is changed from 2°C to –5°C.)
8
High-temp
release control
1) The heating operation is performed as follows based on
the detected temperature of Tc sensor or Tcj sensor.
• When [M] zone is detected, the commanded fre-
quency is decreased from the real operation fre-
quency. After then the commanded frequency
changes every 30 seconds while operation is per-
formed in [M] zone.
• In [N] zone, the commanded frequency is held.
• When [L] zone is detected, the commanded fre-
quency is returned to the original value by approx.
6Hz every 60 seconds.
Tc( C)
M
Setup at
shipment
Tcj
A
Control temp (°C)
N
A
B
B
56 (54) 52 (52)
L
NOTE :
When the operation has started or when Tc or Tcj became
lower than 30°C after start of the operation, temperature is
controlled between values in parentheses of A and B.
Same when thermostat is
turned off.
– 42 –
No.
Item
Outline of specifications
Remarks
9
Drain pump control 1) In cooling operation (including Dry operation), the
drain pump is usually operated.
(For the duct, when
2) If the float switch operates while drain pump
the drain-up kit
(sold separately) is
mounted)
operates, the compressor stops, the drain pump
continues the operation, and a check code is
output.
3) If the float switch operates while drain pump stops,
the compressor stops and the drain pump oper-
ates. If the float switch keeps operating for approx.
4 minutes, a check code is output.
Check code [P10]
10 After-heat elimina- When heating operation stops, the indoor fan operates
tion
with LOW mode for approx. 30 seconds.
11 Flap control
(For 4-way air
1) Flap position setup
• When the flap position is changed, the position
moves necessarily to downward discharge
position once to return to the set position.
• The flap position can be set up in the following
operation range.
discharge cassette
type only)
In cooling/dry operation In heating/fan operation
• In group twin/triple operation, the flap positions
can be set up collectively or individually.
2) Swing setup
• The swinging position can be moved in the
following operation range.
All modes
• In group twin/triple operation, the swinging
positions can be set up collectively or individu-
ally.
Warning :
3) When the unit stops or when a warning is output,
the flap automatically moves downward.
4) While the heating operation is ready, the flap
automatically moves upward.
A check code is displayed
on the remote controller,
and the indoor unit stops.
(Excluding [F08] and
[L31])
– 43 –
No.
Item
Outline of specifications
Remarks
12 Frequency fixed
operation
<In case of wired remote controller>
1. When pushing [CHECK] button for 4 seconds or more,
[TEST] is displayed on the display screen and the
mode enters in Test run mode.
(Test run)
2. Push [ON/OFF] button.
3. Using [MODE] button, change the mode from [COOL]
to [HEAT].
• Do not use other mode than [COOL]/[HEAT] mode.
• During test run operation, the temperature cannot be
adjusted.
• An error is detected as usual.
• A frequency fixed operation is performed.
4. After the test run, push [ON/OFF] button to stop the
operation. (Display in the display part is same as the
procedure in item 1).)
5. Push [CHECK] button to clear the test run mode.
([TEST] display in the display part disappears and the
status returns to the normal stop status.)
<In case of wireless remote controller>
(Option for 4-way air discharge cassette type only)
1. Turn off the power of the set.
Remove the adjuster with sensors from the ceiling
panel.
2. Turn Bit [1: TEST] of sensor P.C. board switch [S003]
from OFF to ON.
Attach the sensor P.C. board cover and mount the
adjuster with sensors to the ceiling panel.
Turn on the power of the set.
3. Push [ON/OFF] button of the wireless remote controller
and set the operation mode to [COOL] or [HEAT] using
[MODE] button.
(During test run operation, all the display lamps of
wireless remote controller sensors flash.)
• Do not use other mode than [COOL]/[HEAT] mode.
• An error is detected as usual.
• A frequency fixed operation is performed.
4. After the test run, push [ON/OFF] button to stop the
operation.
5. Turn off the power of the set.
Turn Bit [1: TEST] of sensor P.C. board switch [S003]
from ON to OFF.
Mount the adjuster with sensors to the ceiling panel.
13 Filter sign display 1) The operation time of the indoor fan is calculated, the
[FILTER] goes on.
(Except wireless
type)
filter reset signal is sent to the remote controller when
the specified time (2500H) has passed, and it is
displayed on LCD.
2) When the filter reset signal has been received from the
remote controller, time of the calculation timer is
cleared. In this case, the measurement time is reset if
the specified time has passed, and display on LCD
disappears.
– 44 –
No.
Item
Outline of specifications
Remarks
14 Central control
mode selection
1) Setting at the central controller side enables to select
the contents which can be operated on the remote
controller at indoor unit side.
2) RBC-AMT21
[Last push priority] :
(No display)
The operation contents can be selected from both
remote controller and central controller of the indoor
unit side, and the operation is performed with the
contents selected at the last.
[Center] :
[CENTER] goes on.
[CENTER] goes on.
Start/Stop operation only can be handled on the
remote controller at indoor unit side.
[Operation Prohibited] :
It cannot be operated on the remote controller at
indoor unit side. (Stop status is held.)
In a case of wireless type, the
display lamp does not change.
However, contents which can be
operated are same.
The status set in [CENTER]/
[Operation Prohibited] mode is
notified with the receiving sound
“Pi, Pi, Pi, Pi, Pi” (5 times).
15 Energy-save
control
1) Selecting [AUTO] mode enables an energy-saving to
be operated.
(By connected
outdoor unit)
2) The setup temperature is shifted (corrected) in the
range not to lose the comfort ability according to input
values of various sensors.
3) Data (Input value room temp. Ta, Outside temp. To, Air
volume, Indoor heat exchanger sensor temp. Tc) for
20 minutes are taken the average to calculate
correction value of the setup temperature.
4) The setup temperature is shifted every 20 minutes,
and the shifted range is as follows.
In cooling time : +1.5 to –1.0K
In heating time : –1.5 to +1.0K
16 Max. frequency 1) This control is operated by selecting [AUTO] opera-
cut control
tion mode.
2) COOL operation mode: the frequency is controlled
according to
the following
figure if
Ta( C)
Normal control
+4
+3
Max. frequency is restricted
to approximately the rated
cooling frequency
To < 28°C.
Tsc
3) HEAT operation mode: the frequency is controlled
according to
Ta( C)
the right
Tsh
Max. frequency is restricted
to approximately the rated
figure if
To > 15°C.
heating frequency
–3
–4
Normal control
17 DC motor
(For 4-way air
discharge
1) When the fan operation has started, positioning of the
stator and the rotor are performed.
(Moves slightly with tap sound)
cassette type
only)
2) The motor operates according to the command from
the indoor controller.
NOTES :
• When the fan rotates while the air conditioner stops
due to entering of outside air, etc, the air conditioner
may operated while the fan motor stops.
• When a fan locking is found, the air conditioner stops,
and an error is displayed.
Check code [P12]
– 45 –
Microcomputer operation LED
Network adapter
power supply
Indoor/Outdoor
inter-unit cable
DC fan output
EEPROM
Drain pump output
DC fan return
Float SW
Louver
TC sensor
Outside error input
TCJ sensor
Remote controller power LED
TA sensor
CHK
DISP
Optional output
EXCT
Remote controller inter-unit cable
Power transformer input (AC11V,14V,20V)
Microcomputer operation LED
Indoor/Outdoor inter-unit cable
Power transformer output
Louver
Remote controller
power LED
Drain pump
output
HA
Optional output
Fan output
Float SW
TA sensor
Network adapter
power supply
EXCT
Remote controller
inter-unit cable
TCsensor
TCJ sensor
Outside error input
CHK
DISP
9. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS
9-1. Microcomputer System Block Diagram
9-1-1. Connection of Main Remote Controller
Main (Sub) master remote controller
EEPROM
Display
LCD
The P.C. boards of the indoor unit are
classified into 4 boards according to the
function.
1. Main P.C. board (MCC-1370A)
Controller for power circuit, fan motor
driver, and whole unit
CPU
Function setup
Key switch
TMP47C
820F
Display
LED
2. Sub P.C. board (MCC-1370B)
Setup of unit No. and concurrent twin
* The sub P.C. board is located near the
remote controller terminal block.
3. Sensor display P.C. board (MCC-819)
Wireless remote controller receive part,
LED display part
4. Communication P.C. board (MCC-1337)
Communication part with the central
control remote controller (Option)
AC
synchronous
signal input
circuit
Serial send/
receive circuit
Power circuit
A B C
A B C
Max. 16 units are connectable.
Indoor unit
#1
#2
#3
B C
B C
Sensor display P.C. board
(MCC-819)
Main P.C. board (MCC-1370A)
EEPROM
Sensors LED
Serial send/
receive circuit
TA shift setup
Model selection
Function setup
CPU
Remote controller
No. setupTwin/
Triple setup
TA sensor
TC sensor
TCJ sensor
TMP87CM
40AN
(TMP87PM
40AN)
Optional
output
Comp.
Run
Sub P.C. board
(MCC-1370B)
Same as
the left
Same as
the left
Driver
Error
Heat
Louver
motor
Indoor fan
control circuit
DC
12V
DC
5V
Indoor
fan
motor
DC15V
AC
Serial
send/
receive
circuit
synchronous
signal input
circuit
Power
circuit
Transformer
DC310~340V
Communication Pulse
1 2 3
1 2 3
LSI
trans
MCC-1337
Communication P.C. board (Option)
1 2 3
1 2 3
X
Y
Outdoor
unit
Outdoor
unit
Outdoor unit
– 48 –
9-1-2. Connection of Wireless Remote Controller
Indoor unit
#1
Main P.C. board (MCC-1370A)
EEPROM
Infrared radiation
Sensors LED
TA shift setup
Model selection
Function setup
Sensor display
P.C. board
CPU
TA sensor
TC sensor
TCJ sensor
Remote controller
No. setupTwin/
Optional
TMP87CM
40AN
(TMP87PM
40AN)
Triple setup
output
Comp.
Driver
Sub P.C. board(MCC-1370B)
Run
Error
Heat
Louver
motor
Indoor fan
control circuit
DC
12V
DC
5V
Indoor
fan
motor
DC15V
AC
Serial
send/
receive
circuit
synchronous
signal input
circuit
Power
circuit
Transformer
DC310~340V
Communication Pulse
LSI
trans
MCC-1337
Communication P.C. board (Option)
X Y
1 2 3
1 2 3
Outdoor unit
– 49 –
9-1-3. Control Specifications
No.
Item
Outline of specifications
1) Distinction of outdoor units
Remarks
1
When power
supply is reset
When the power supply is reset, the outdoors are
distinguished, and control is exchanged according to
the distinguished result.
2) Setting of the indoor fan speed
Based on EEPROM data, rspeed of the indoor fan is Air speed
selected.
2
Operation mode
selection
1) Based on the operation mode selecting command
from the remote controller, the operation mode is
selected.
Remote controller
Outline of control
command
STOP
FAN
Air conditioner stops.
Fan operation
Cooling operation
Dry operation
Heating operation
Ta
COOL
DRY
HEAT
AUTO
Ta : Room temperature
Ts : Setup temperature
COOL
( C)
+3
(COOL ON)
Tsc : Setup temperature
in cooling operation
Tsh : Setup temperature
in heating operation
Tsc
or Tsh
(COOL OFF)
–3
Heating
1) Judge the selection of COOL/HEAT mode as shown in the
figure below.
When the heating operation (Thermo OFF) is exchanged
to cooling operation if Tsh exceeds +3 or more.
(COOL OFF) and (COOL ON) in the figure indicate an
example.
When the cooling operation (Thermo OFF) is exchanged
to heating operation if Tsc exceeds -3 or less.
2) For the automatic capacity control after judgment of
COOL/HEAT, refer to item 4.
3) For the temperature correction of room temperature control
in automatic heating operation, refer to item 3.
3
Room tempera-
ture control
1) Adjustment range Remote controller setup tempera-
ture (°C)
COOL/
DRY
Heating
operation
Auto
operation
Standard type
Wireless type
18 to 29
17 to 30
18 to 29
17 to 30
18 to 29
19 to 29
Max. setup temperature
Ts (Max) = 35°C
Remote controller
setup temp
▼5 ▼4 ▼3 ▼2 ▼1 Standard ▲1 ▲2 ▲3 ▲4 ▲5
Setup temp (°C)
19 20 21 22 23
24
25 26 27 28 29
2) Differential 1K (=deg)
3) In heating operation, the setup temperature can be
corrected by using Dip switch (SW03) on the indoor
P.C. board.
Setup at shipment
SW03
1
2
ON
ON OFF OFF
SW03
ON OFF ON OFF
1
2
Setup temp correction
+0°C +2°C +4°C +6°C
ON
OFF
– 50 –
No.
Item
Outline of specifications
Remarks
4
Automatic
capacity control
1) Based on the difference between Ta and Ts, the
operation frequency is instructed to the outdoor unit.
(GA control)
NOTE :
In cooling operation :
When calculating the following conditions for 29 minutes,
the commanded frequency is assumed as the rated
cooling frequency.
1
2
3
4
Ta < 28°C
Indoor fan [High]
32°C < To ≤ 38°C or no To
Operation exceeding the rated cooling frequency
In heating operation: When calculating the following
conditions for 29 minutes, the commanded frequency is
assumed as the rated heating frequency.
1
2
3
4
5
Ta ≥ 19°C
Indoor fan [High]
5°C < To ≤ 10°C or no To
Operation exceeding the rated heating frequency
Tc ≥ 38°C
NOTE :
Tc : Temperature of indoor
heat exchanger
sensor
When air volume is set to [L], the maximum frequency is
restricted.
5
Air volume
control
1) Operation with [HIGH (H)], [MED (M)], [LOW (L)], or
[AUTO] mode is performed by the command from the
remote controller.
2) When the air volume mode [AUTO] is selected, the air UH > H > M+ > M > L + >
volume varies by the difference between Ta and Ts.
L > UL
Cooling of
<COOL>
Auto
Normal
cooling/
cooling
Ta
( C)
heating
H
H
(HIGH)
(HIGH)
M+
M+
+1.5
+1.0
+0.5
Tsc
M+
M
(MED)
L+
(LOW)
M
(MED)
L
L+
–0.5
Heatiing of
Auto
<HEAT>
cooling/
heating
Normal
heating
Ta
( C)
UL (Ultra Low)
only in Comp OFF
+0.5
Tsc
L
L+
L+
M
(MED)
–
0.5
1.0
1.5
M
M+
M+
(MED)
M+
(HIGH)
–
–
H
H
UH
– 51 –
No.
Item
Outline of specifications
Remarks
5
Air volume control
(Continued)
Air volume setup
SM560 SM800
Tap
Revolutions per
minute (rpm)
COOL, DRY, FAN HEAT
F4
F5
F6
F7
F8
F9
FA
FB
FC
FD
UH
1290
1230
1180
1150
1120
1060
1060
990
1480
1480
1340
1320
1310
1200
1200
1100
1040
900
H
H
M+
M+
M
M
L+
L
L+
L
940
UL
900
3) In heating operation, the mode changes to [Ultra
Low (UL)] or [STOP] if thermostat is turned off.
4) If Ta ≥ 25°C when heating operation has started and
when defrost operation has been cleared, it oper-
ates with MED mode or higher mode for 1 minute
from when Tc has entered in A zone of cool air
discharge preventive control (Item 6).
“Stop” is a “cool air
discharge preventive
control” operation by Tc.
Tc: Indoor heat exchanger
sensor temp.
5) In automatic cooling/heating operation, the revolu-
tion frequency of [HIGH (H)] is set larger than that in
the standard cooling/heating operation. However the
revolution frequency is restricted in the automatic
heating operation as shown in the following figure.
F5
F4
Tc
( C)
47
42
F4
Display: [AUTO]
6) (For wireless type only) The mode enters [AUTO] in
automatic cooling/heating operation.
7) The mode enters [LOW (L)] during Dry operation
6
Cool air discharge 1) In heating operation, the indoor fan is controlled
preventive control
based on the detected temperature of Tc sensor.
As shown below, the upper limit of the revolution
frequency is determined.
Display in C zone
A zone : Setup air volume
from remote
Display of main unit:
Defrost LED goes on.
controller
Tc( C)
B zone : Low air
C zone : OFF
When wired remote
A
30
26
20
16
controller is installed:
PRE-HEAT/DEFROST
goes on remote controller.
C
B
– 52 –
No.
Item
Outline of specifications
Remarks
7
Freeze preventive 1) The cooling operation (including Dry operation) is
Tcj : Indoor heat
control
(Low temperature
release)
performed as follows based on the detected tem-
perature of Tc sensor or Tcj sensor.
When [J] zone is detected for T1 minutes (Following
figure), the commanded frequency is decreased
from the real operation frequency. After then the
commanded frequency changes every 30 seconds
while operation is performed in [J] zone.
exchanger sensor
temperature
T1
Normal
Twin
6 minutes
6 minutes
In [K] zone, time counting is interrupted and the
operation is held.
When [I] zone is detected, the timer is cleared and
the operation returns to the normal operation.
If the commanded frequency becomes S0 because
the operation continues in [J] zone, the return
temperature A is raised from 5°C to 12°C until [I]
zone is detected and the indoor fan operates with [L]
mode.
( C)
5
2
A
I
K
J
In heating operation, the freeze-preventive control
works if 4-way valve is not exchanged and the
condition is satisfied.
8
High-temp release 1) The heating operation is performed as follows based
control
on the detected temperature of Tc sensor.
• When [M] zone is detected, the commanded
frequency is decreased from the real operation
frequency. After then the commanded frequency
changes every 30 seconds while operation is
performed in [M] zone.
• In [N] zone, the commanded frequency is held.
• When [L] zone is detected, the commanded
frequency is returned to the original value by
approx. 6Hz every 60 seconds.
Setup at shipment
Tc ( C)
A
M
N
Control temp (°C)
A
B
B
56 (54) 52 (52)
L
NOTE :
When the operation has started or when Tc became
lower than 30°C after start of the operation, tempera-
ture is controlled between values in parentheses of A
and B.
Same when thermostat is
turned off.
– 53 –
No.
Item
Outline of specifications
The louver angle is displayed
Remarks
9
Louver control
Full close
setting 0° as “Full close”.
1) Louver
position
1) In the initial operation after
power-ON, the position is
0
automatically controlled according to the operating
status (COOL/HEAT).
Cooling
Heating
45
103
2) After then a louver position is stored in the microcom-
puter every time when position is operated on the
remote controller, and the louver operates at the position
stored in memory in the next operation and after.
* If the operation mode has been changed from COOL
to HEAT, from HEAT to COOL, or the power has
turned off, the stored louver position is cleared and
the status returns to one in item 1).
2) Air direction
adjustment
(Swing
1) When pushing [LOUVER] button during operation, the
louver starts swinging.
2) When the louver has arrived at the desired position, push
[LOUVER] again.The louver stops at that position.
operation)
10 Frequency fixed 1) In case of wired remote controller
operation
[COOL]/[HEAT] flash.
Air volume: [AUTO]
Temperature
1. When pushing [ON/OFF] button on the remote
(Test run)
controller continuously for 5 seconds, the mode
enters [TEST]. The indoor fan rotates with [HIGH]
and a frequency fixed operation starts.
COOL: [L]
HEAT: [H]
2. During this operation, the buttons other than [ON/
OFF], [UP △] and [DOWN ▽] cannot be accepted.
However, items 7 and 8 are effective.
3. To stop the frequency fixed operation, use [ON/OFF] Commanded frequency
button only.
Approximately [S7]
2) In case of wireless remote controller (Without wired
remote controller)
1. When pushing [Temporary] button continuously for
10 seconds or more, “Pi” sound is heard and the
mode enters [TEST]. The indoor fan rotates with
[HIGH] and a frequency fixed operation of [COOL]
starts.
NOTES :
• Temporary button is provided to near the display part of
the main unit when opening the front panel.
• If [Temporary] button is not continuously pushed for 10
seconds, “Automatic heating/cooling operation” is
performed.
2. To stop the operation, push [Temporary] button again.
NOTE :
Operation on the wireless remote controller is not ac-
cepted.
– 54 –
No.
Item
Outline of specifications
Remarks
11 Filter sign display 1) The operation time of the indoor fan is calculated, the filter
lamp (Orange) on the display part of the main unit goes on
when the specified time (240H) has passed. When a wired
remote controller is connected, the filter reset signal is sent to
the remote controller, and also it is displayed on LCD of the
wired remote controller.
[FILTER] goes
on.
2) When the filter reset signal has been received from the wired
remote controller after [FILTER] lamp has gone on or when
the filter check button (Temporary button) is pushed, time of
the calculation timer is cleared. In this case, the measurement
time is reset if the specified time has passed, and display on
LCD and the display on the main unit disappear.
12 Central control
mode selection
1) Setting at the central remote controller side enables to select the contents which
can be operated on the remote controller at indoor unit side.
2) Operation contents on the remote controller at indoor unit side
[Last push priority] :
The operation contents can be selected from both remote controller and the
central controller of the indoor unit side, and the operation is performed with the
contents selected at the last.
[Center] :
Start/Stop operation only can be handled on the remote controller at indoor unit
side.
[Operation Prohibited] :
It cannot be operated on the remote controller at indoor unit side.
(Stop status is held.)
3) Display on the display part of the main unit or wired remote controller
Setup on central
control remote
controller
Display on wired remote Display on wired
Display on main unit
(Only in case of no wired remote
controller
(In case of RBC-AM1)
remote controller
(In case of RBC-AM1) controller)
Last push priority
[Central control] goes off. [Center] goes off.
No display
Center
[Central control] goes on. [Center] goes on.
[DEFROST] lamp (Orange) 1Hz flashes.
[DEFROST] lamp (Orange) 5Hz flashes.
Operation prohibited [Central control] flashes. [Center] flashes.
NOTE : When a wired remote controller is connected, there is no display on the main unit.
Energy-save
1) Selecting [AUTO] mode enables an energy-saving to be operated.
2) The setup temperature is shifted (corrected) in the range not to lose the comfort
ability according to input values of various sensors.
3) Data (Input value room temp.Ta, Outside temp.To, Air volume, Indoor heat
exchanger sensor temp. Tc) for 20 minutes are taken the average to calculate
correction value of the setup temperature.
13
control
(By connected
outdoor unit)
4) The setup temperature is shifted every 20 minutes, and the shifted range is as
follows.
In cooling time : +1.5 to –1.0K
In heating time : –1.5 to +1.0K
14 Max. frequency
cut control
1) This control is operated by selecting
[AUTO] operation mode.
2) COOL operation mode: the fre-
quency is controlled according to the
following figure if To < 28°C.
Ta( C)
+4
Normal control
Max. frequency is restricted
to approximately the rated
cooling frequency
+3
Tsc
3) HEAT operation mode: the frequency
is controlled according to the right
figure if To > 15°C.
Ta( C)
Tsh
Max. frequency is restricted
to approximately the rated
heating frequency
-3
-4
Normal control
– 55 –
9-2. Indoor Control Circuit
9-2-1. Print Circuit Board
<Main P.C. board (MCC-1370A)>
<Sub P.C. board (MCC-1370B)>
– 56 –
9-2-2. Outline of Main Controls
1. Pulse ModulatingValve (PMV) control
1) For PMV, SM560 is controlled with 45 to 500 pulses and SM800 with 50 to 500 pulses during operation,
respectively.
2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC
sensor.
3) In heating operation, PMV is controlled with the temperature difference between TS sensor and TE
sensor.
4) For the temperature difference in items 2) and 3), 1 to 5K is aimed as the target in both cooling and
heating operations.
5) When the cycle excessively rose in both cooling and heating operations, PMV is controlled by TD sensor.
The aimed value is usually 105°C for SM560 and 100°C for SM800 in both cooling and heating opera-
tions.
REQUIREMENT
A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the
compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance
value an the refrigerating cycle of each sensor after repair and then start the operation.
2. Discharge temperature release control
1) This function controls the operation frequency,
TD [ C]
that is, lowers the operation frequency when
the discharge temperature has not lower or
the discharge temperature has rapidly risen
during PMV control. It subdivides the fre-
quency control up to a unit of 0.6Hz to stabi-
lize the cycle.
Error stop ("P03" display with 4 times of error counts)
Frequency down
a
b
c
2) When the discharge temperature is detected
in an abnormal stop zone, the unit stops the
compressor and restarts after 2 minutes 30
seconds. The error counter is cleared when it
has continued the operation for 10 minutes.
If the abnormal stop zone has been detected
by 4 times without clearing of counter, an
error ‘P03’ is displayed.
Frequency holding
d
e
Frequency slow-up
(Up to command)
As command is
* The cause is considered as excessively little
amount of refrigerant, defective PMV, or
clogging of cycle.
[°C]
a
SM560 117
SM800 111
b
c
d
e
112
106
108
100
105
95
98
90
3. Current release control
[A]
The output frequency and the output voltage are
controlled by AC current value detected by T02
on the outdoor P.C. board so that input current of
the inverter does not exceed the specified value.
Frequency down
I1
Hold
SM560
SM800
Objective
model
Hold
Normal operation
1–0.5
COOL HEAT COOL HEAT
10.22 10.35 13.00 14.43
I1 value [A]
* For the cooling only models, only COOL is
objective.
– 57 –
9-2-3. Indoor P.C. Board Optional Connector Specifications
Connector Pin
Function
Specifications
DC12V (COM)
Remarks
No.
No.
Option output
CN60
1
2
Defrost output
ON during defrost operation of outdoor unit
ON during Real thermo-ON (Comp ON)
3
Thermo. ON output
Cooling output
4
ON when operation mode is in cooling system
(COOL, DRY, COOL in AUTO cooling/heating)
5
6
Heating output
Fan output
ON when operation mode is in heating system
(HEAT, HEAT in AUTO cooling/heating)
ON during indoor fan ON
(Air purifier is used/Interlock cable)
Outside error
input
CN80
1
2
3
1
DC12V (COM)
DC12V (COM)
Outside error input
(When continued for 1 minute)
Check code “L30” is output and forced operation stops.
Filter option
error
CN70
CN71
Filter/Option/Humidifier Option error input is controlled. (Protective operation
setup input
for device attached to outside is displayed.)
2
0V
* Setting of option error input is performed from
remote controller. (DN=2A)
CHK
Operation check
Used for operation check of indoor unit. (Communica-
tion with outdoor unit or remote controller is not
performed, but the specified operation such as indoor
fan “H” or drain pump ON is output.)
1
2
Check mode input
0V
DISP display
mode
Display mode enables indoor unit and remote control-
ler to communicate. (When power is turned on)
CN72
CN73
1
2
1
2
Display mode input
0V
Demand input
0V
EXCT demand
Forced thermo-OFF operation in indoor unit
– 58 –
12V power supply
5V power supply
MCU
GND
PMV output
TD sensor
TS sensor
TE sensor
TO sensor
Case thermo
Outdoor fan rpm input
Outdoor fan output
IGB module
4-way valve output
(Except cooling only models)
Converter module
Pump down switch
12V power supply
Contactor against
night low-noise
Case thermo
PMV output
5V power supply
TD sensor
TO sensor
TE sensor
TS sensor
Communication
between CDB and IPDU
Existing pipe
corresponding switch
(SW 801)
4-way valve
output
Outdoor fan output
GND
Status display LED
MCU
9-3-2. Outline of Main Controls
1. Outdoor fan control (Object: SM80)
Allocautions of fan tap revolutions [rpm]
W1
W2
W3
W4
W5
W6
W7
W8
W9
WA
WB
WC WD WE
SM800
250 270 290 310 340 370 400 440 480 520 560 610 700 780
1) Cooling fan control
The outdoor fan is controlled by TE sensor.
(Cooling:Temperature conditions after medium
term)
TE [ C]
The cooling fan is controlled by every 1 tap of DC
fan control (14 taps).
MAX.
+30 rpm / 20 sec.
Hold zone
46
37
34
20
At the activation time, although the maximum fan
tap in the following table are fixed for 60 seconds,
after then the fan may not rotate with high speed
for several minutes because the fan is controlled
by TE sensor value. It is not an abnormal status.
‚
–30 rpm / 20 sec.
MIN.
When the discharge temperature sensor is
abnormal or the sensor comes off the holder, the
fan does not rotate with high speed, but a protec-
tive device works.
ƒ
„
When the outdoor fan does not rotate with high
speed, judge a fan error by comparing the control
data in the following table with TO and TE values.
Control for fan tap by outdoor temperature in normal operation
TO
TO < 5°C
5 ≤ TO <10°C 10 ≤ TO < 15°C 15 ≤ TO < 20°C 20 ≤ TO < 25°C 25°C ≤ TO
TO error
W1
MIN
W1
W6
W2
W8
W3
WA
W4
W5
WE
WA
WE
MAX
WC
WE
2) Heating fan control
This control function lowers fan tap according to
TE sensor value when outdoor temperature is
high.
TE [ C]
When a status TE > 20°C is detected continu-
ously for 5 minutes, the operation may stop. This
status does not output an error code and is
assumed as usual status of thermo-OFF.The fan
restarts after approx. 2 minutes 30 seconds and
this intermittent operation is not a trouble.
‚
–60 rpm / 20 sec. STOP timer count
–60 rpm / 20 sec.
24
21
17
15
–30 rpm / 20 sec.
If the status in item
is frequently found, it is
Hold zone
ƒ
„
‚
considered that the filter of suction part of the
indoor unit is dirty. Clean the filter and restart the
operation.
+30 rpm / 20 sec.
This control function does not work for 30 min-
utes after activation, 1 minute after defrosting,
and during defrost operation.
– 61 –
2. Outdoor fan control (Object: SM560)
The outdoor fan is controlled by TO sensor and the revolutions frequency of the compressor (rps).
The outdoor fan is controlled by every 1 tap of DC fan control (8 taps). According to each operation mode,
the fan is operated by selecting an outdoor fan operation tap in the following table based upon the conditions
of TO sensor and the compressor operation (rps).
Allocations of fan tap revolutions
Tap
F1
F2
F3
F4
F5
F6
F7
F8
Revolutions per
minute (rpm)
SM560
960
870
870
870
750
700
540
390
In cooling operation
In heating operation
Frequency of the
compressor (rps)
Frequency of the
compressor (rps)
To 14
To 14
35 to MAX
To 14
To 14
35 to MAX
TO ≥ 38°C
F7
F7
F4
F5
F3
F4
TO ≥ 5.5°C
F7
F6
F6
F6
F4
F3
TO < 38°C
TO < 5.5°C
3. Coil heating control
1) This control function heats the compressor by turning on the stopped compressor instead of a case
heater. It purposes to prevent slackness of the refrigerant inside of the compressor.
2) As usual, turn on power of the compressor for the specified time before a test run after installation,
otherwise a trouble of the compressor may be caused. As same as a test run, it is recommended to turn
on power of the compressor beforehand when starting operation after power of the compressor has been
interrupted for a long time.
3) A judgment for electricity is performed by TD and TO sensors. If TO sensor is defective, a backup control
is automatically performed by TE sensor. For a case of defective TO sensor, judge it with the outdoor LED
display.
4) Coil heating is controlled by TD and TE sensor.
5) For every model, the power is turned off when TD is 30°C or more.
(In trouble of sensor)
TO [ C]
TO [ C]
18
15
10
8
20
18
12
10
No power-ON
No power-ON
Power-ON condition
TD < 30 C
Continuous ON (L)
Continuous ON (M)
Continuous ON (L)
Continuous ON (M)
* TD sensor is read in once per 15 minut.es
SM800
L
20W and equivalent
40W and equivalent
M
(Object: SM560)
TO [ C]
No power-ON
10
9
Continuous ON (L)
Continuous ON (M)
Continuous ON (H)
4
3
2
1
SM560
L
M
H
10W and equivalent
20W and equivalent
30W and equivalent
– 62 –
NOTIFICATION
It is not an abnormal phenomenon that electro-noise may be heard while heating the coil.
4. Short intermittent operation preventive control
The compressor may not stop for preventing the compressor for 3 to 10 minutes after start of the
operation even if Thermo-OFF signal has been received from the indoor. This phenomenon is not
abnormal. (Continuous operation time of the compressor differs according to the operating status.)
If the equipment is stopped from the remote controller, the operation does not continue.
‚
5. High-voltage suppressionTE control (Only for SM800)
This control suppresses that voltage becomes abnormally higher during cooling operation.
‚
ƒ
Stop the compressor under condition of TE ≥ 67°C, and count 1 on the error count.
After 2 minutes 30 seconds passed, if TE < 67°C, the compressor restarts and the error count is
cleared when the operation continues for 10 minutes.
When TE ≥ 67°C is detected again within 10 minutes, 1 is added to the error count and restart is
„
ꢀ
†
repeated.
If the error counts 10 are recognized, it is determined as an error and restart is not performed. Error
code ‘P04’ is displayed.
After restarting the compressor, continue controlling by using 70% to 90% of the control value of the
current release control for minimum 30 minutes.
6. Over-current preventive control
This control function stops the compressor when over-current preventive circuit has detected an
abnormal current.
The compressor restarts with error count 1 after 2 minutes 30 seconds.
‚
ƒ
If the error counts 4 are recognized, it is determined as an error and restart is not performed. Error
code ‘H01’, ‘H02’ or ‘P26’ is displayed.
7. Current release value shift control
1) Object: SM800
This control function prevents troubles of the electron parts such as G-Tr of inverter of compressor
drive system and troubles of the compressor during cooling operation.
‚
ƒ
This control function corrects the current release control value ( 1) in item 3 of 9-2-2 by TO sensor
value.
The value to be corrected is based upon the following control diagram and correction value table.
Corrected value
TO [ C]
T
a
b
c
d
SM800
39°C 40°C 60°C 80°C 85°C
T+8
T+7
T+5
T+4
T+2
T+1
T
T-1
I1 x a%
I1 x b%
I1 x c%
I1 x d%
As I1
Current release value shift control
2) Object: SM560
TO
45 ≤ TO
SM560
7.07
The current release value of a single-phase model is se-
lected from the right table according to TO sensor value.
40 ≤ TO < 45
7.90
TO < 45
10.22
– 63 –
8. Defrost control
In heating operation, defrost operation is performed when TE sensor temperature satisfies any
condition in A zone to D zone.
The defrost operation is immediately finished if TE sensor temperature has become 12°C or more, or
it also is finished when condition of 7°C ≤ TE < 12°C has continued for 1 minute. The defrost operation
is also finished when defrost operation has continued for 10 minutes even if TE sensor temperature
has become 7°C or lower.
‚
After defrost operation has finished, the compressor and the outdoor fan start heating operation after
stopped for approx. 50 seconds.
ƒ
Start of heating operation
10
0
15
c
b
a
d
[min]
TE [ºC]
–5
A zone
–10
–13
B zone
–18
D zone
C zone
*
* The minimum TE value between 10 and 15 minutes after heating operation has started is stored in memory as TE0.
A zone
B zone
C zone
D zone
Defrost operation is performed in this zone when TE0-TE ≥ 3 continued for T seconds.
Defrost operation is performed in this zone when TE0-TE ≥ 3 continued for T seconds.
Defrost operation is performed when this zone continued for T seconds.
Defrost operation is performed when this zone continued for T seconds.
SM560
28
SM800
34
a
b
c
28
40
28
55
d
T
60
90
120
120
– 64 –
10. TROUBLESHOOTING
10-1. Summary ofTroubleshooting
<Wired remote controller type>
1. Before troubleshooting
1) Required tools/instruments
•
+ and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
The following operations are normal.
a) Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Does not thermostat turn off?
• Does not timer operate during fan operation?
• Is not outside high-temperature operation controlled in heating operation?
b) Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
c) Outdoor fan does not rotate or air volume changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
d) ON/OFF operation cannot be performed from remote controller.
• Is not the control operation performed from outside/remote side?
• Is not automatic address being set up?
(When the power is turned on at the first time or when indoor unit address setting is changed, the
operation cannot be performed for maximum approx. 5 minutes after power-ON.)
Did you return the cabling to the initial positions?
‚
ƒ
Are connecting cables of indoor unit and remote controller correct?
(2) Troubleshooting procedure
When a trouble occurred, check the parts along with the following procedure.
Trouble → Confirmation of check code display → Check defective position and parts.
NOTE :
For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to
outer noise is considered except the items to be checked. If there is any noise source, change the cables
of the remote controller to shield cables.
– 65 –
<Wireless remote controller type> (Only for 4-way air discharge cassette type models)
1. Before troubleshooting
1) Required tools/instruments
•
+ and – screwdrivers, spanners, radio cutting pliers, nippers, etc.
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
The following operations are normal.
a) Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Does not thermostat turn off?
• Does not timer operate during fan operation?
• Is not outside high-temperature operation controlled in heating operation?
b) Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
3) Outdoor fan does not rotate or air volume changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
4) ON/OFF operation cannot be performed from remote controller.
• Is not forced operation performed?
• Is not the control operation performed from outside/remote side?
• Is not automatic address being set up?
Did you return the cabling to the initial positions?
Are connecting cables between indoor unit and receiving unit correct?
‚
2. Troubleshooting procedure
(When the power is turned on at the first time or when indoor unit address setting is changed, the operation
cannot be performed for maximum approx. 5 minutes after power-ON.)
When a trouble occurred, check the parts along with the following procedure.
Confirmation of lamp display
(When 4-way air discharge cassette type wireless remote controller is connected)
Check defective
position and parts.
Trouble →
→
1) Outline of judgment
The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with
the following method.
Method to judge the erroneous position by flashing indication on the display part of indoor unit
(sensors of the receiving unit)
The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis
are displayed restricted to the following cases if a protective circuit works.
– 66 –
10-2. Check Code List
Error mode detected by indoor unit
◎: Flash, 〇: Go on, ●: Go off
Wireless sensor
lamp display
Wired remote
controller
Diagnostic function
Cause of operation
Judgment and measures
Status of air
conditioner
Condition
Operation Timer Ready Check code
E03
No communication from remote controller (including wireless) Stop
Displayed when 1. Check cables of remote controller and communication adapters.
• Handy remote controller LCD display OFF (Disconnection)
• Central remote controller [97] check code
and communication adapters
(Automatic reset) error is detected
◎
●
●
●
●
◎
E04
The serial signal is not output from outdoor unit to indoor unit. S top
• Miscabling of inter-unit cables
• Defective serial sensing circuit on outdoor P.C. board
• Defective serial receiving circuit on indoor P.C. board
Displayed when 1. Outdoor unit does not completely operate.
(Automatic reset) error is detected
• Inter-unit cable check, correction of miscabling, case thermo operation
• Outdoor P.C. board check, P.C. board cables check
2. In normal operation
P.C. board (Indoor receiving/Outdoor sending) check
◎
◎
◎
◎
●
●
●
●
●
◎
◎
◎
E08
L03
L07
L08
L09
Duplicated indoor unit addresses
Duplicated indoor master units
Stop
Displayed when 1. Check whether there is modification of remote controller connection (Group/
error is detected
Individual) or not after power has been turned on (finish of group configuration/
address check).
There is group line in individual indoor units.
Unsetting of indoor group address
* If group configuration and address are not normal when the power has been turned
on, the mode automatically shifts to address setup mode. (Resetting of address)
Unset indoor capacity
Stop
Stop
Stop
Stop
Displayed when 1. Set the indoor capacity. (DN=I1)
error is detected
◎
◎
●
●
○
◎
◎
◎
◎
L30
P01
P10
Abnormal outside interlock input
Fan motor thermal protection
Displayed when 1. Check outside devices.
error is detected 2. Check indoor P.C. board.
Displayed when 1. Check thermal relay of fan motor.
error is detected 2. Check indoor P.C. board.
Float switch operation
• Disconnection, coming-off, defective float switch contactor
of float circuit
Displayed when 1. Defect of drain pump
error is detected 2. Clogging of drain pump
3. Check float switch.
●
◎
◎
4. Check indoor P.C. board.
P12
P19
Indoor DC fan error
Stop
Displayed when 1. Defective detection of position
error is detected 2. Over-current protective circuit of indoor fan driving unit operates.
3. Lock of indoor fan
●
◎
◎
●
◎
◎
4. Check indoor P.C. board.
Error in 4-way valve system
• Indoor heat exchanger temperature lowered after start of
heating operation.
Stop
Displayed when 1. Check 4-way valve.
(Automatic reset) error is detected 2. Check indoor heat exchanger (TC/TCJ) sensor.
3. Check indoor P.C. board.
P31
F01
F02
F10
F29
E10
Own unit stops while warning is output to other indoor units.
Stop (Sub unit)
Displayed when 1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08].
(Automatic reset) error is detected 2. Check indoor P.C. board.
◎
◎
◎
◎
◎
●
◎
◎
◎
◎
◎
●
●
●
●
Coming-off, disconnection or short of indoor heat exchanger
sensor (TCJ)
Stop
Displayed when 1. Check indoor heat exchanger temperature sensor (TCJ).
(Automatic reset) error is detected 2. Check indoor P.C. board.
Coming-off, disconnection or short of indoor heat exchanger
sensor (TC)
Stop
Displayed when 1. Check indoor heat exchanger temperature sensor (TC).
(Automatic reset) error is detected 2. Check indoor P.C. board.
Coming-off, disconnection or short of indoor heat exchanger
sensor (TA)
Stop
Displayed when 1. Check indoor heat exchanger temperature sensor (TA).
(Automatic reset) error is detected 2. Check indoor P.C. board.
Indoor EEPROM error
• EEPROM access error
Stop
Displayed when
1. Check indoor EEPROM. (including socket insertion)
(Automatic reset) error is detected 2. Check indoor P.C. board.
Communication error between indoor MCU
• Communication error between fan driving MCU and main
MCU
Stop
Displayed when
1. Check cables of remote controller.
◎
◎
●
●
●
●
(Automatic reset) error is detected 2. Check power cables of indoor unit.
3. Check indoor P.C. board.
E18
Regular communication error between master and sub indoor Stop
units or between main and sub indoor units
Displayed when 1. Check cables of remote controller.
(Automatic reset) error is detected 2. Check indoor power cable.
3. Check indoor P.C. board.
Error mode detected by outdoor unit
◎: Flash, 〇: Go on, ●: Go off
Wireless sensor
lamp display
Wired remote
controller
Diagnostic function
Judgment and measures
Status of air
Condition
Cause of operation
Breakdown of compressor
Operation Timer Ready Check code
conditioner
H01
Stop
Stop
Stop
Stop
Displayed when 1. Check power voltage. AC200V 20V
error is detected
●
●
●
◎
◎
◎
●
●
●
• Displayed when error is detected
2. Overload operation of refrigerating cycle
3. Check current detection circuit at AC side.
H02
H03
L29
Compressor does not rotate.
Displayed when 1. Trouble of compressor (Compressor lock, etc.) : Replace compressor.
error is detected
• Over-current protective circuit operates after specified time
passed when compressor had been activated.
2. Defective cabling of compressor (Phase missing)
3. Phase-missing operation of power supply (3-phase model)
Current detection circuit error
Displayed when 1. Compressor immediately stops even if restarted. : Check IPDU.
error is detected
• Current value at AC side is high even during compressor-OFF.
• Phase of power supply is missed.
2. Phase-missing operation of power supply
Check 3-phase power voltage and cables.
Outdoor unit and other errors
Displayed when 1. Check cables of CDB and IPDU.
error is detected
• Communication error between CDB and IPDU
2. Abnormal overload operation of refrigerating cycle
◎
○
◎
(Coming-off of connector)
• Heat sink temperature error
(Detection of temperature over specified value)
L31
P03
Phase detection protective circuit operates.
(Normal models)
Operation continues. Displayed when 1. Check power phase order (Reversed phase)/phase missing.
(Compressor stops.) error is detected
◎
◎
○
●
◎
◎
2. Check outdoor P.C. board.
Displayed when 1. Check refrigerating cycle. (Gas leak)
Discharge temperature error
• Discharge temperature over specified value was detected.
Stop
Stop
Stop
error is detected
2. Trouble of PMV
3. Check Td sensor.
P04
P22
High-pressure protection error by TE sensor
(Temperature over specified value was detected.)
Displayed when 1. Overload operation of refrigerating cycle
error is detected
◎
●
◎
2. Check outdoor temperature sensor (TE).
3. Check outdoor CDB P.C. board.
Outdoor DC fan error
Displayed when 1. Defective detection of position
error is detected
2. Over-current protective circuit of outdoor fan driving unit operates.
3. Lock of outdoor fan
4. Check outdoor CDB P.C. board.
◎
◎
●
●
◎
◎
P26
Inverter over-current protective circuit operates. (For a short time)
Short voltage of main circuit operates.
Stop
Displayed when 1. Inverter immediately stops even if restarted. : Compressor motor rare short
error is detected
2. Check IPDU. : Cabling error
P29
F04
IPDU position detection circuit error
Stop
Stop
Displayed when 1. Position detection circuit operates even if operating compressor by removing
error is detected 3P connector. : Replace IPDU.
◎
◎
●
◎
◎
○
Coming-off, disconnection or short of outdoor temperature
sensor (TD)
Displayed when 1. Check outdoor temperature sensor (TD).
error is detected 2. Check outdoor CDB P.C. board.
F06
F08
Coming-off, disconnection or short of outdoor temperature
sensor (TE/TS)
Stop
Displayed when 1. Check outdoor temperature sensor (TE/TS).
error is detected 2. Check outdoor CDB P.C. board.
◎
◎
◎
◎
○
○
Coming-off, disconnection or short of outdoor temperature
sensor (TO)
Operation continues. Displayed when 1. Check outdoor temperature sensor (TO).
error is detected
2. Check outdoor CDB P.C. board.
For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit.
Error mode detected by remote controller or network adapter
◎: Flash, 〇: Go on, ●: Go off
Wireless sensor
lamp display
Wired remote
controller
Diagnostic function
Judgment and measures
Cause of operation
Status of air conditioner
Condition
Operation Timer Ready
Check code
No check code No communication with master indoor unit
Stop
—
Remote controller power error, Defective indoor EEPROM
1. Check remote controller inter-unit cables.
2. Check remote controller.
is displayed.
(Remote
• Remote controller cable is not correctly
connected.
—
—
—
controller does • Power of indoor unit is not turned on.
3. Check indoor power cables.
4. Check indoor P.C. board.
not operate.)
• Automatic address cannot be completed.
5. Check indoor EEPROM. (including socket insertion)
: Phenomenon of automatic address repetition occurred.
E01*2
No communication with indoor master unit
• Disconnection of inter-unit cable between
remote controller and master indoor unit
(Detected at remote controller side)
Stop
Displayed when Signal receiving of remote controller is defective.
error is detected 1. Check remote controller inter-unit cables.
2. Check remote controller.
(Automatic restart)
* When there is center, operation
continues.
◎
●
●
3. Check indoor power cables.
4. Check indoor P.C. board.
E02
Signal sending error to indoor unit
(Detected at remote controller side)
Stop
Displayed when Signal sending of remote controller is defective.
error is detected 1. Check sending circuit inside of remote controller.
: Replace remote controller.
(Automatic restart)
* When there is center, operation
continues.
◎
◎
●
●
●
●
E09
L20
Multiple master remote controllers are recognized. Stop
Displayed when 1. Check there are multiple master units for 2 remote controllers
(Detected at remote controller side)
(Sub unit continues operation.)
error is detected
(including wireless).
: Master unit is one and others are sub units.
Duplicated indoor central addresses on
Stop
Displayed when 1. Check address setup of central control system network.
communication of central control system (AI-NET) (Automatic restart)
(Detected by central controller side)
error is detected
(Network adapter SW01)
2. Check network adapter P.C. board.
Central remote
controller
98
◎
○
◎
—
*3
Multiple network adapters on remote controller
communication line
(Detected by central controller side)
Operation continues.
Operation continues.
Displayed when 1. Check multiple network adapters.
error is detected 2. Check inter-unit cable/miscabling of remote controller.
: Only one network adapter on remote controller communication line
—
—
—
Central remote
controller
99
—
*3
Interruption of central control system (AI-NET)
communication circuit
(Detected by central controller side)
Displayed when 1. Check communication line/miscabling. Check power of indoor unit.
(According to handy remote controller) error is detected 2. Check communication. (XY terminals)
3. Check network adapter P.C. board.
—
—
—
—
—
—
Central remote
controller
97
4. Check central controller (such as central control remote controller, etc.).
—
Indoor Gr sub unit error
(Detected by central controller side)
Continuation/stop
(Based on a case)
Displayed when Check the check code of corresponding unit by handy remote controller.
error is detected
Central remote
controller
b7
*2 Check code is not displayed by wired remote controller. (Usual operation of air conditioner is disabled.)
For wireless type models, E01 is notified by the display lamp.
*3 These errors are related to communication of remote controllers (A, B) and central system (AI-NET, X, Y), and [E01], [E02], [E03], [E09], or [E18] is displayed or no check code is displayed on the
remote controller according to the error contents.
10-3. Error Mode Detected by LED on Outdoor P.C. Board
<SW800: LED display in bit 1, bit 2, bit 3 OFF>
• When multiple errors are detected, the latest error is displayed.
• When LED display is ○(Go on), there is the main cause of trouble on the objective part of control at CDB
side and the unit stops.
• When LED display is ◎(Flash), there is the main cause of trouble on the objective part of control at IPDU
side and the unit stops.
• When case thermostat operates, the communication is interrupted on the serial circuit. If continuing the case
thermostat operation, a serial communication error occurs because serial sending to the indoor unit is inter-
rupted.
Check code
LED display
No.
Item
D800
(Red)
D801
(Yellow)
D802
(Yellow)
D803
(Yellow)
Type A
Type B
1
2
3
4
5
6
TE sensor error
F06
F04
F06
F08
P03
P22
18
19
18
1B
1E
1A
○
○
●
●
●
○
●
○
●
○
○
○
●
●
○
●
○
○
●
●
●
●
●
●
TD sensor error
TS sensor error
TO sensor error
Discharge temp. error
DC outdoor fan error
Communication error
between IPDU
CDB side
7
L29
1C
○
●
●
○
(Abnormal stop)
High-pressure release
operation
21
—
—
8
9
P04
●
○
○
○
●
●
○
○
EEPROM error
—
Communication error
10 between IPDU
(No abnormal stop)
—
—
●
◎
●
●
○
●
○
●
G-Tr short-circuit
protection
11
P26
14
12 Detection circuit error
13 Current sensor error
14 Phase missing detection
15 Comp. lock error
P29
H03
H03
H02
H01
16
17
17
1D
1F
●
◎
●
●
◎
◎
◎
●
●
●
●
●
●
◎
◎
●
●
◎
●
●
IPDU side
16 Comp. breakdown
○: Go on ●: Go off ◎: Flash (5Hz)
<<Check code>>
The check codes are classified into Type A and Type B according to the used remote controller. Be sure to
check the remote controller which you use.
Type A :
Neutral 2-cores type wired remote controller such as RBC-AMT21E, RBC-AS21E, and wireless remote control-
ler kit such as TCB-AX21U (W)-E
Type B :
Polarized 3-cores type wired remote controller such as RBC-SR1-PE, RBC-SR2-PE, and central control remote
controller such as RBC-CR64-PE
– 70 –
10-4. Troubleshooting Procedure for Each Check Code
10-4-1. New Check Code/Present Check Code (Central Control Side)
[E01 error]/ [99 error]
*
:When central controller [99] is displayed, there are other causes of error.
*
NO
Correct inter-unit cable of remote controller.
Is inter-unit cable of A and B normal?
YES
Is there no disconnection
or contact error of connector on harness
from terminal block of indoor unit?
YES
Correct connection of connector.
Check circuit cables.
NO
NO
Is group control operation?
YES
NO
Check power connection of indoor unit.
(Turn on power again.)
Is power of all indoor units turned on?
YES
NO
Check indoor P.C. board (MCC-1402).
Is power supplied to remote controller?
AB terminal: Approx. DC18V
Defect
Replace
YES
YES
Correct as a master unit/a sub unit
(Remote controller address connector)
Are two remote controllers
set without master unit?
NO
Check remote controller P.C. board.
Defect
Replace
[E09 error]/ [99 error]
*
:When central controller [99] is displayed, there are other causes of error.
*
YES
Correct as a master unit/a sub unit
(Remote controller address connector)
Are two remote controllers
set without master unit?
NO
Check remote controller P.C. board.
Defect
Replace
– 71 –
[E04 error]/[04 error]
NO
Does outdoor unit operate?
YES
NO
NO
Is setup of group address correct?
YES
Check item code [14].
Correct inter-unit cable.
Are 1, 2, 3 inter-unit cables normal?
YES
Are connections from connectors
of inter-terminal blocks (1, 2, 3)
of indoor/outdoor units normal?
NO
NO
Correct connection of connector.
YES
Check indoor P.C. board
(MCC-1402).
Does voltage between
2 and 3 of inter-terminal blocks (1, 2, 3)
of indoor unit vary?*
Defect
Replace
YES
As shown in the following figure,
perform measurement within
20 seconds after power ON.
*
S5277G
Black
White
3
2
1
Inter-terminal block
For RAV-SM560AT-E,
main circuit on control
P.C. board
Is DC280V applied between
terminals of electrolytic capacitor
of IPDU main circuit?
NO
Replace IPDU.
YES
For RAV-SM560AT-E,
check case thermo.
Is DC7V power supplied to CDB?
NO
NO
Replace IPDU.
Are cablings between Pin 2 and Pin 5
of CN800 and between IPDU
and CDB normal?
Correct connection of connector.
YES
Correct connection of connector.
Is case thermo (CN500) connected?
YES
Check indoor P.C. board
NO
(MCC-1402 or MCC-1403).
Does case thermo operate?
YES
Defect
Replace
Check CDB.
Defect Replace
Check/Correct charged
refrigerant amount.
– 72 –
[E10 error]/[CF error]
<Only for 4-way air discharge cassette type (RAV-SM560UT-E/RAV-SM800UT-E)>
Check indoor control P.C. board (MCC-1402).
Defect
Replace
[E18 error]/[97 error] [99 error]
*
:When central controller [99] is displayed, there are other causes of trouble.
*
NO
Correct inter-unit cable of remote controller.
Is inter-unit cable of A and B normal?
YES
Is there no disconnection
or contact error of connector on harness
from terminal block of indoor unit?
YES
YES
Correct connection of connector.
Check circuit cables.
NO
NO
Is group control operation?
NO
Is power of all indoor units turned on?
Check indoor P.C. board (MCC-1402).
Check power connection of indoor unit.
(Turn on power again.)
Defect
Replace
[E08, L03, L07, L08 error]/ [96 error] [99 error]
*
:When central controller [99] is displayed, there are other causes of trouble.
*
E08 : Duplicated indoor unit numbers
L03 :Two or more master units in a group control
L07 : One or more group addresses of [Individual] in a group control
L08 : Unset indoor group address (99)
If the above is detected when power has been turned on, the mode automatically enters in automatic ad-
dress setup mode. (Check code is not displayed.)
However, if the above is detected during automatic address setup mode, the check code may be displayed.
[L09 error]/[46 error]
YES
Set capacity data of indoor unit.
(Setup item code (DN) = 11)
Is capacity of indoor unit unset?
NO
Check indoor P.C. board (MCC-1402).
Defect
Replace
– 73 –
[L20 error]/[98 error]
NO
NO
Are cable connections to
Correct cable connection
communication line X, Y normal?
YES
Check indoor P.C. board
Is central controller [98] displayed?
YES
(MCC-1402 or MCC-1403).
Defect
Replace
Is indoor remote controller
[L20] displayed?
YES
Are not multiple
same central control network
addresses connected?
YES
Correct central control network address.
NO
Check central controller
(including network adapter).
Defect
Replace.
[L30 error]/[B6 error]
Check indoor P.C. board
NO
NO
Are outside devices of
(MCC-1402 or MCC-1403).
connector CN80 connected?
Defect
Replace
YES
Check outside devices.
Defect Replace
Do outside devices normally operate?
YES
Check operation cause.
[b7 error] (Central controller)
NO
NO
Is group operation performed?
YES
Check indoor P.C. board
Is check code displayed on sub unit
of main or sub remote controller?
(MCC-1402 or MCC-1403).
Defect
Replace
YES
Check corresponding
indoor/outdoor units.
– 74 –
[P10 error]/[Ob error]
NO
Is connection of float switch connector
(Indoor control P.C. board CH34) normal?
Correct connection of connector.
YES
NO
Does float switch operate?
YES
NO
Check and correct cabling/wiring.
Is circuit cabling normal?
YES
Check indoor P.C. board
(MCC-1402 or MCC-1403).
Defect
Replace
NO
Does drain pump operate?
YES
Check indoor P.C. board
NO
(MCC-1402 or MCC-1403).
Is power of drain pump turned on?
YES
Defect
Replace
Replace drain pump.
Check cabling.
Check drain pipe, etc.
[F10 error] [0C error]
NO
Is connection of TA sensor connector
(indoor P.C. board CN104) normal?
Correct connection of connector.
Replace TA sensor.
YES
NO
Are characteristics of TA sensor
resistance value normal?
YES
* Refer to Characteristics-1.
Check indoor P.C. board
(MCC-1402 or MCC-1403).
Defect
Replace
– 75 –
[P12 error]/[11 error]
<Only for 4-way air discharge cassette type models (RAV-SM560UT-E/RAV-SM800UT-E)>
Turn off the power.
Are not there connections errors or
disconnection on connectors CN333 and CN334
of indoor unit P.C. board (MCC-1402)?
YES
Correct connection of connector.
NO
Remove connectors CN333 and
CN334 of indoor unit P.C. board
(MCC-1402).
NO
Does the fan rotate without trouble
when handling the fan with hands?
Replace indoor fan motor.
Replace indoor fan motor.
YES
Are resistance values between phases
at fan motor connector CN333 motor side of
indoor P.C. board (MCC-1402) correct? *1
NO
1
YES
*
1
3
• Are not coil windings between
(Red lead) and
(White lead),
3
5
between
5
(White lead) and
(Black lead), between
(Red lead) opened or shorted?
1
(Black lead) and
For resistance, see the following values.
AIU-P401H/HR, P451, P501, P561, P631, P711, P801
Approx. 70 to 100
AIU-P1121H/HR, P1401, P1601
Approx. 35 to 50
• Is not earthed between cabinet and 1, 3, 5
10M or more
Is resistance value of fan motor connector
CN333 at motor side of indoor P.C. board
(MCC-1402) correct? *2
NO
Replace indoor fan motor.
2
YES
*
Check resistance of fan motor position detection circuit.
1
4
Is not coil winding between
(Yellow lead) and
(Pink lead)
opened or shorted?
NO
Resistance: Approx. 5 to 20k
Is signal output of indoor fan motor
position detection correct? *3
Replace indoor fan motor.
YES
3
*
Check fan motor position detection signal.
• Using a tester, measure the voltage between CN334
1
5
and
of
indoor P.C. board (MCC-1402) under condition that CN333 and
CN334 are mounted and the power is turned on.
Rotate the fan slowly with hands,
and check the pin voltage
swings between 0 to 5V voltage.
4
5
• Between
and
: 5V
CN333
Check indoor P.C. board
(MCC-1402).
Defect
Replace
CN334
– 76 –
[P22 error]/[1A error]
(RAV-SM800AT-E)
Are connections of CN301 and
CN300 of P.C. board correct?
YES
Does the fan rotate without trouble
NO
NO
CN301
when handling the fan with hands under condition
of removing CN301 and CN300 from P.C. board?
YES
The status that the resistance values
between leads below are 50 to 80
for 40W motor (ICF-140-40) and 25 to 55
for 60W motor (ICF-140-60-1) is normal.
1
2
2
Between
Between
Between
(Red lead) and
(White lead)
(Black lead)
3
(White lead) and
(Black lead) and
(Red lead)
3
1
of motor winding of connector (CN301)
CN300
YES
* Connector of RAV-SM560AT-E differs from
that of RAV-SM800AT-E.
The status that there is
NO
5k to 20k resistance values between
CN300: Motor coil winding
CN301: Motor position detection
1
(Yellow lead) and
4
(Pink lead)
of motor position detection of
connector (CN300) is normal.
YES
Normal fan motor
(Control or CDB P.C. board)
Defective fan motor
(Control P.C. board or CDB P.C. board)
NOTE :
However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.
When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.
Single phase
RAV-SM560AT-E
Control P.C. board
CN300
Single phase
RAV-SM800AT-E
CDB P.C. board
CN301
Objective P.C. board
Fan motor winding
Motor position detection
Fan motor winding
CN301
CN300
Motor position detection
– 77 –
[P19 error]/[08 error]
Is voltage applied
to 4-way valve coil terminal
in heating operation?
NO
NO
Is operation of
4-way valve normal?
YES
YES
Is flow of refrigerant
by electron expansion
valve normal?
NO
Check 4-way valve
Defect Replace
YES
Check and replace
electron expansion
valve.
NO
Is circuit cable normal?
YES
Check and correct circuit.
Are characteristics
of TC sensor resistance
value normal?
NO
YES
* Refer to Characteristics-2.
NO
Check CDB P.C. board.
YES
Replace TC sensor.
Check CDB P.C. board.
Defect Replace
Check indoor P.C. board.
Defect
Replace
* For RAV-SM560AT-E, check control P.C. board.
• In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this
case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error].
[F02 error]/[0d error]
NO
Is connection of TC sensor connector
Correct connection of connector.
(Indoor P.C. board CN101) normal?
YES
NO
Are characteristics of
TC sensor resistance value normal?
Replace TC sensor.
YES
* Refer to Characteristics-2.
Check indoor P.C. board
(MCC-1402).
Defect
Replace
– 78 –
[F01 error]/[0F error]
NO
Is connection of TCJ sensor connector
(Indoor P.C. board CN102) normal?
Correct connection of connector.
Replace TCJ sensor.
YES
NO
Are characteristics of
TCJ sensor resistance value normal?
YES
* Refer to Characteristics-2.
Check indoor P.C. board
(MCC-1403).
Defect
Replace
[P26 error]/[14 error]
NO
Improve the power supply line.
Is power voltage normal?
YES
Check and correct circuit cables.
Correct connection of connector.
Check and correct reactor connection.
NO
Are connections of
cabling/connector normal?
YES
* For RAV-SM560AT-E,
check RY01 on the control P.C. board.
Are not “P26” and “14” errors output
YES
NO
Does RY01 relay of
IPDU operate?
when an operation is performed by
removing 3P connector of compressor?
NO
YES
* Single-phase type is not
provided to RAV-SM560AT-E.
Replace IPDU.
YES
Is not AC fuse fused?
NO
* Replace control P.C. board
of RAV-SM560AT-E.
Replace IPDU.
NO
Is compressor normal?
YES
* Replace control P.C. board
of RAV-SM560AT-E.
Check IPDU.
Defect Replace
Check rare short of compressor trouble.
Defect Replace
– 79 –
[P29 error]/[16 error]
NO
NO
Check and correct circuit cabling
such as cabling to compressor.
Are connections of
cable/connector normal?
YES
Is compressor normal?
YES
YES
Compressor error
Compressor error
Compressor error
Replace
Replace
Replace
Is not earthed?
NO
YES
Is not winding shorted?
(Is resistance between windings 0.6 to 1.2 ?)
NO
YES
Is not winding opened?
NO
Check IPDU P.C. board.
* For RAV-SM560AT-E, replace control P.C. board.
Defect
Replace
[H03 error]/[17 error]
NO
Are cablings of power and
current sensor normal?
Check and correct circuit cables.
YES
Check IPDU.
* For RAV-SM560AT-E, replace control P.C. board.
Defect
Replace
– 80 –
[F06 error]/[18 error]
Are connections of
TE/TS sensor connectors of
CDB CN604/CN605 normal?
NO
Correct connection of connector.
YES
* (For RAV-SM560AT-E, CN600 TE sensor and CN603 TS sensor)
NO
Are characteristics of TE/TS sensor
resistance values normal?
Replace TE and TS sensors.
YES
Check CDB.
* Refer to Characteristics-3.
Defect
Replace
[F04 error]/[19 error]
NO
Is connection of TD sensor connector
of CDB CN600 normal?
Correct connection of connector.
Replace TD sensor.
YES
* (For RAV-SM560AT-E, CN601 TD sensor)
NO
Are characteristics of TD sensor
resistance value normal?
YES
Check control P.C. board.
* Refer to Characteristics-4.
Defect
Replace
[F08 error]/[1b error]
NO
Is connection of TO sensor connector
of CDB CN601 normal?
Correct connection of connector.
Replace TO sensor.
YES
* (For RAV-SM560AT-E, CN602 TO sensor)
NO
Are characteristics of TO sensor
resistance value normal?
YES
Check CDB.
* Refer to Characteristics-5.
Defect
Replace
– 81 –
[L29 error]/[1C error]
Are connections of
CDB CN800 and CDB IPDU CN06
connectors normal?
NO
Correct connection of connector.
YES
YES
NO
Check cabling between IPDU
and CDB and connector.
Was the error just after
power ON determined?
Are cabling/connector normal?
YES
NO
IPDU P.C. board error
Defect
Replace
YES
NO
Improve and eliminate the cause.
Is there no abnormal overload?
NO
Is IPDU P.C. board come to
closely contact with heat sink?
Correct mounting.
YES
IPDU P.C. board error
Defect
Replace
[H02 error]/[1d error]
NO
Improve power line.
Is power voltage normal?
YES
Check and correct circuit cabling such
as cabling to compressor
(phase missing) and connector.
NO
Are connections of
cable/connector normal?
YES
NO
NO
Is there no
slackened refrigerant?
Compressor lock
Replace
Is compressor normal?
YES
YES
NO
Check TE and TS sensors. Replace
Check electron expansion valve. Replace
Does electron expansion
valve normally operate?
YES
Check IPDU and CDB.
* For RAV-SM560AT-E, replace control P.C. board.
Defect
Replace
– 82 –
[P03 error]/[1E error]
NO
NO
Correct the cabling and
connection of connector.
Is protective control such as
discharge temprelease control normal?
Are connections of
cable/connector normal?
YES
YES
Check parts. Defect
Replace
NO
Check and correct the charged
refrigerant amount.
Is charged refrigerant amount normal?
YES
YES
Improve and delete the cause
Replace TD sensor.
Check CDB.
Is not abnormal overload?
NO
NO
Are characteristics of
TD sensor resistance value normal?
* Refer to Characteristics-4.
YES
Defect
Replace
* For RAV-SM560AT-E, replace control P.C. board.
[H01 error]/[1F error]
NO
Improve power line.
Is power voltage normal?
YES
YES
NO
Improve and delete the cause.
Is not abnormal overload?
NO
Is the circuit detected by
current sensor normal?
Check and correct circuit cables.
Check IPDU.
YES
Defect
Replace
* For RAV-SM560AT-E, replace control P.C. board.
– 83 –
[P04 error]/[21 error]
Is high-voltage
protective operation by
TE sensor normal?
NO
YES
NO
Correct connection of
cabling connector.
Is connection of cabling
connector normal?
YES
Check TE sensor.
Defect
Replace
NO
Does cooling outdoor fan
normally operate?
YES
NO
NO
Correct connection of
connector.
Is connection of
connector normal?
YES
Replace fan motor.
Is fan motor normal?
YES
NO
Does PMV normally operate?
YES
NO
NO
Do not TD and TO sensors
Correct coming-off.
come off the detection part?
YES
Check TE, TC, TS sensors.
Replace electron expansion valve.
Are characteristics of
TD, TO, TC sensor resistance
values normal?
Replace TD, TO,
and TC sensors.
YES
* Refer to Characteristics-3 and 4.
Check charged refrigerant amount.
Check liquid/gas valves.
Check abnormal overload.
Check CDB.
Defect Replace
* For RAV-SM560AT-E, replace control P.C. board.
– 84 –
[97 error] (Central controller)
NO
NO
Correct communication line.
Is X, Y communication line normal?
YES
Are connections between connectors
CN02, CN03 of network adapter P.C. board
and connectors CN309, CN41 of indoor P.C. board
(MCC-1402 or MCC-1403, normal?
Correct connection of connector.
YES
NO
Check connections of A, B terminal blocks.
Correct communication line of remote controller.
Is A, B communication line normal?
YES
YES
YES
YES
Correct power cable.
Turn on the source power supply.
Clear the check code.
Is there no connection error of power line?
NO
Is not power of source power supply turned on?
NO
Did a power failure occur?
NO
YES
YES
Is the network address changed
form remote controller?
NO
Eliminate noise, etc.
Is there no noise source, etc.?
NO
NO
(Same as others)
Can central remote controller
control normally other indoor units?
Is handling of central remote controller reflected
on the operation status of indoor unit?
Check central controller.
Defect
Replace
YES
NO
Does network adapter P.C. board
LED (D01) go on?
YES
NO
Can handy remote controller control
normally other indoor units?
YES
Check indoor P.C. board
Check network adapter P.C. board and power transformer.
Defect Replace
(MCC-1402 or MCC-1403).
Defect
Replace
– 85 –
[E03 error] (Master indoor unit)
[E03 error] is detected when the indoor unit cannot receive a signal sent from the main remote controller (and
central controller).
In this case, check the communication cables of the remote controllers A and B, the central control system X
andY. As communication is disabled, [E03] is not displayed on the main remote controller and the central
controller. [E01] is displayed on the main remote controller and [97 error] on the central controller, respectively.
If [E03] occurs during an operation, the air conditioner stops.
[F29 error] / [12 error]
[F29 error] or [12 error] indicates detection of trouble which occurred on IC10 non-volatile memory (EEPROM)
on the indoor unit P.C. board during operation of the air conditioner. Replace the service P.C. board.
* If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read/written,
the automatic address mode is repeated. In this time, the central controller displays [97 error].
(Power ON)
(Approx. 3 minutes)
[SET] is displayed on
main remote controller.
(Approx. 1 minute)
[SET] goes off.
(Repetition)
LED (D02) on
indoor unit P.C. board flashes
with 1Hz for approx. 10 seconds.
Reboot
(Reset)
[P31 error] (Sub indoor unit)
When the master unit of a group operation has detected [E03], [L03], [L07], or [L08] error, the sub unit of the
group operation detects [P31 error] and then it stops. There is no display of the check code or alarm history of
the main remote controller.
(In this model, the mode enters in automatic address set mode when the master unit has detected [E03], [L03],
[L07], or [L08] error.)
– 86 –
10-4-2. Relational Graph ofTemperature Sensor Resistance Value andTemperature
20
40
TA sensor
TC,TCJ sensor
Caracteristics-2
30
Caracteristics-1
Resistance
(k )
Resistance
(k )
10
20
10
0
0
10 20 30
40 50
–
10
0
10 20
30 40 50 60 70
Temperature [ C]
Temperature [ C]
TE, TO, TS sensor
20
200
Caracteristics-3
Resistance
Resistance
(k )
(k )
(10 C or higher)
10
(10 C or lower)
100
0
0
-10
0
10 20 30
40 50 60 70
Temperature [ C]
TD sensor
20
200
Caracteristics-4
Resistance
Resistance
(k )
(50 C or lower)
(k )
(50 C or higher)
10
100
0
0
50
100
Temperature [ C]
– 87 –
11. REPLACEMENT OF SERVICE INDOOR P.C. BOARD
[Requirement when replacing the service indoor P.C. board assembly]
In the non-volatile memory (Hereinafter said EEPROM, IC10) installed on the indoor P.C. board before replace-
ment, the type and capacity code exclusive to the corresponding model have been stored at shipment from the
factory and the important setup data such as system/indoor/group address set in (AUTO/MANUAL) mode or
setting of high ceiling selection have been stored at installation time. Replace the service indoor P.C. board
assembly according to the following procedure.
After replacement, check the indoor unit address and also the cycle by a test run.
<REPLACEMENT PROCEDURE>
CASE 1
Before replacement, power of the indoor unit can be turned on and the setup data can be readout from
the wired remote controller.
Read EEPROM data *1 (ref. P89)
ò
Replace service P.C. board & power ON *2 (ref. P89)
ò
Write the read data to EEPROM *3 (ref. P90)
ò
Power reset (All indoor units in the group when group operation)
CASE 2
Before replacement the setup data can not be readout from the wired remote controller.
Replace service P.C. board & power ON *2 (ref. P89)
ò
Write the data such as high ceiling setup to EEPROM (According to the customers’ information) *3
ò
Power reset (All indoor units in the group when group operation)
– 88 –
r1 Readout of the setup data from EEPROM
(Data in EEPROM contents, which have been changed at the local site, are read out together with data in
EEPROM set at shipment from the factory.)
SET
1. Push
,
, and
buttons of the remote controller at the same time for 4 seconds or more.
1
(Corresponded with No. in Remote controller)
When group operation, the master indoor unit address is displayed at the first time. In this time, the item
code (DN) 10
2. Every pushing
button, the indoor unit address in the group are displayed successively.
is displayed. The fan of the selected indoor unit operates and the flap starts s2winSgipnegciiffyatnhye.
indoor unit No. to be replaced.
3. Using the set temperature
/
buttons, the item code (DN) can be moved up and down one by one.3
4. First change the item code (DN) from 10 to 01. (Setting of filter sign lighting time) Make a note of the set
data displayed in this time.
5. Next change the item code (DN) using the set temperature
/
buttons. Also make a note of the set data.
6. Repeat item 5. and make a note of the important set data as shown in the later table (Ex.).
•
01 to 9F
7. After finishing making a note, push
button to return the status to usual stop status.
are provided in the item code (DN). On the way of operation, DN No. may6come out.
(Approx. 1 minute is required to start handling of the remote controller.)
Minimum requirements for item code
DN
Contents
(1) Type and capacity of the indoor unit is necessary to set the revolutions
frequency of the fan.
10 Type
11 Indoor unit capacity
12 Line address
(2) If Line/Indoor/Group addresses differ from those before replacement,
the mode enters in automatic address setup mode and a manual
resetting may be required.
13 Indoor address
14 Droup address
r2 Replacement of service P.C. board
1. Replace the P.C. board with a service P.C. board.
In this time, setting of jumper line (cut) or setting of (short-circuit) connecting connectors on the former P.C.
board should be reflected on the service P.C. board.
2. According to the system configuration, turn on power of the indoor unit with any method in the following items.
a) In case of single (individual) operation
Turn on the power supply.
1) Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then
proceed to r3.
(Line address = 1, Indoor address = 1, Group address = 0 (Individual) are automatically set.)
SET
2) Push
,
, and
buttons of the remote controller at the same time for 4 seconds or more
(
1
operation), interrupt the automatic address setup mode, and then proceed to r3.
(Unit No. ALL is displayed.)
b) In case of group operation
Turn on power of the indoor unit of which P.C. board has been replaced with the service P.C. board with
any method in the following items.
1) Turn on power of the replaced indoor unit only.
(However, the remote controller is also connected. Otherwise r3 operation cannot be performed.)
Same as 1) and 2) in item a).
2) Turn on power of the multiple indoor units including replaced indoor unit.
• Only 1 system for twin, triple, double twin
• For all units in the group
Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then
proceed to r3.
* The master unit of a group may change by setup of automatic address.The line address/indoor address of the
replaced indoor unit are automatically set to the vacant addresses except addresses belonging to other indoor
units which have not been replaced. It is recommended to make a note that the refrigerant line which includes
the corresponding indoor unit and that the corresponding indoor unit is master or sub in the group control.
– 89 –
r3 Writing of the setup contents to EEPROM
(The contents of EEPROM installed on the service P.C. board have been set up at shipment from1the factory.)
SET
1. Push
,
, and
buttons of the remote controller at the same time for 4 seconds or more.
(Corresponded with No. in Remote controller )
In group operation control, the master indoor unit No. is displayed at the first time. (If the automatic address
setup mode is interrupted in item 2. - a) - 2) in the previous page, the unit No. ALL is displayed.) In this time,
the item code (DN) 10 is displayed. The fan of the selected indoor unit operates and the flap starts swinging
if any.
2. Every pushing
button, the indoor unit numbers in the group control are displayed successively.
2
Specify the indoor unit No. of which P.C. board has been replaced with a service P.C. board.
(When the unit No. ALL is displayed, this operation cannot be performed.)
3. Using the set temperature
/
buttons, the item code (DN) can be moved up and down one by one. 3
4. First set a type and capacity of the indoor unit.
(Setting the type and capacity writes the data at shipment from the factory in EEPROM.)
1) Set the item code (DN) to 10. (As it is)
2) Using the timer time
/
buttons, set up a type.
(For example, 4-way air discharge cassette type is 0001) Refer to the attached table.
4
SET
3) Push
button. (OK when the display goes on.)
5
4) Using the set temperature
5) Using the timer time
/
buttons, set 11 to the item code (DN).
/
buttons, set the capacity.
(For example, 0012 for class 80) Refer to the attached table.
SET
6) Push
7) Push
button. (OK when the display goes on.)
button to return the status to usual stop status.
6
(Approx. 1 minute is required to start handling of the remote controller.)
5. Next write the contents which have been set up at the local site such as the address setup in EEPROM.
Repeat the above procedure 1. and 2.
6. Using the set temperature
/
buttons, set 01 to the item code (DN).
(Setup of lighting time of filter sign)
7. The contents of the displayed setup data in this time should be agreed with the contents in the previous
memorandum in r1.
1) If data disagree, change the displayed setup data to that in the previous memorandum by the timer time
SET
/
buttons, and then push
button. (OK when the display goes on.)
2) There is nothing to do when data agrees.
8. Using the set temperature
buttons, change the item code (DN).
/
As same as the above, check the contents of the setup data and then change them to data contents in the
previous memorandum.
9. Then repeat the procedure 7. and 8.
<REMOTE CONTROLLER>
10. After completion of setup, push
the status to the usual stop status.
button to return
6
(Approx. 1 minute is required to start handling of
the remote controller.)
SET DATA
UNIT No.
* 01 to 9F are provided in the item code (DN).
R.C. No.
On the way of operation, DN No. may come out.
SET
When data has been changed by mistake and
button has been pushed, the data can be returned
4
1
to the data before change by pushing
the item code (DN) was not yet changed.
button if
6
UNIT
3
SET CL
5
2
– 90 –
Memorandum for setup contents (Item code table (Example))
DN
Item
Memo
At shipment
According to type
01 Filter sign lighting time
02 Dirty state of filter
03 Central control address
06 Heating suction temp shift
0F Cooling only
0000: Standard
0099: Unfixed
0002: +2°C (Floor type: 0)
0000: Shared for cooling/heating
According to model type
According to capacity type
0099: Unfixed
10 Type
11 Indoor unit capacity
12 Line address
13 Indoor unit address
14 Group address
0099: Unfixed
0099: Unfixed
19 Flap type (Adjustment of air direction)
According to type
1E Temp difference of automatic cooling/
heating selecting control points
0003: 3 deg (Ts 1.5)
28 Automatic reset of power failure
2A Option
0000: None
0002:
2b Thermo output selection (T10 ‡B)
2E Option
0000: Thermo ON
0000:
32 Sensor selection
0000: Body sensor
0000: Standard
0000: Available
0000: None
5d High ceiling selection
60 Timer set (Wired remote controller)
8b Correction of high heat feeling
Type
Item code [10]
Setup data
Type
Abbreviated name
RAV-SM560/800TU-E
RAV-SM560/800BT-E
0001*
0006
4-way air discharge cassette
Concealed duct
* Initial setup value of EEPROM installed on the service P.C. board
Indoor unit capacity
Item code [11]
Setup data
0000*
Model
Invalid
56
0009
0012
80
* Initial setup value of EEPROM installed on the service P.C. board
– 91 –
12. SETUP AT LOCAL SITE AND OTHERS
12-1. Indoor Unit
12-1-1. Test Run Setup on Remote Controller
<Wired remote controller>
1. When pushing
Then push
button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.
button.
• “TEST” is displayed on LC display during operation of Test Run.
• During Test Run, temperature cannot be adjusted but air volume can be selected.
• In heating and cooling operation, a command to fix the Test Run frequency is output.
• Detection of error is performed as usual. However, do not use this function except case of Test Run be-
cause it applies load on the unit.
2. Use either heating or cooling operation mode for [TEST].
NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after
operation has stopped.
3. After a Test Run has finished, push
button again and check that [TEST] on LC display has gone off.
(To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote
controller.)
<Wireless remote controller> (Option for 4-way air discharge cassette type)
1. Turn off power of the unit.
Remove the adjuster attached with sensors from the ceiling panel. For removing, refer to the Installation
manual attached to the ceiling panel. (Be careful to handle the adjuster because cables are connected to the
sensor.) Remove the sensor cover from the adjuster. (1 screw)
2. Change ON of Bit [1:TEST] of the sensor P.C. board switch [S003] to OFF.
Mount the sensor cover and mount the adjuster with sensor to the ceiling panel.
Turn on power of the unit.
3. Push
button on the wireless remote controller and select [COOL] or [HEAT] operation mode using
button. (All the display lamps of sensors on the wireless remote controller flash during Test Run.)
• Do not perform Test Run operation in other modes than [HEAT] / [COOL] mode.
• Detection of error is performed as usual.
4. After Test Run operation, push
5. Turn off power of the unit.
button to stop the operation.
Return Bit [1] of the sensor P.C. board switch [S003] to the original position. (ON → OFF)
Mount the adjuster with sensors to the ceiling panel.
Bit 1 : OFF to ON
S003
ON
Sensor cover
Sensor P.C. board
Adjust corner cap
– 92 –
12-1-2. Setup to Select Function
<Procedure> Use this function while the indoor unit stops.
SET
1
Push
,
, and
buttons concurrently for 4 seconds or more.
The unit No. displayed at the first time indicates the indoor unit address of the master unit in the group control.
In this time, fan and flap of the selected indoor unit operate.
2
Every pushing
button, the indoor unit numbers in the group control are displayed successively.
In this time, fan and flap of the selected indoor unit only operate.
3
4
5
Using the set temperature
/
buttons, set the item code (DN).
Using the timer time
/
buttons, select the setup data.
SET
Push
button. (OK if display goes on.)
• To change the selected indoor unit, proceed to
• To change the item to be set, proceed to
2
.
3.
6
Pushing
button returns the status to usual stop status.
SET DATA
UNIT No.
R.C. No.
4
6
UNIT
3
1
SET CL
5
2
<Operation procedure>
END
1 2 3 4 5 6
– 93 –
Item No. (DN) table (Selection of function)
DN
Item
Description
At shipment
01 Filter sign lighting
time
0000 : None
0002 : 2500H
0004 : 10000H
0001 : 150H
0003 : 5000H
0005 : Clogged sensor used
According to type
02 Dirty state of filter
0000 : Standard
0001 : High degree of dirt
(Half of standard time)
0000 : Standard
0099 : Unfixed
03 Central control
address
0001 : No.1 unit
0099 : Unfixed
to
to
0064 : No.64 unit
06 Heating suction temp 0000 : No shift
0001 : +1°C
0010 : -10°C
0002 : +2°C
(Floor type 0000: 0°C)
shift
0002 : +2°C
(Up to recommendation + 6)
0F Cooling only
10 Type
0000 : Heat pump
0001 : Cooling only
0000 : Shared for cooling/
heating
(No display of [AUTO] [HEAT])
0000 : (Air discharge cassette 1) 0001 : (Air discharge cassette 4) to 0037
According to model type
According to capacity type
0099 : Unfixed
11 Indoor unit capacity 0000 : Unfixed
0001 to 0034
12 Line address
0001 : No.1 unit
0001 : No.1 unit
to
to
0030 : No.30 unit
0064 : No.64 unit
0001 : Master of group
13 Indoor unit address
14 Group address
0099 : Unfixed
0000 : Individual
0099 : Unfixed
0002 : Sub of group
19 Flap type
(Adjustment of air
direction)
0000 : No flap
0004 : 4-way
0001 : Swing only
According to type
1E Temp difference of
automatic cooling/
heating mode
0000 : 0 deg
to
0010 : 10 deg
0003 : 3 deg
(Ts 1.5)
(For setup temperature, reversal of COOL/HEAT by (Data value)/2)
selection COOL →
HEAT, HEAT →COOL
28 Automatic reset of
power failure
0000 : None
0001 : Reset
0000 : None
2A Option
0002 : Default
2b Thermo output
0000 : Indoor thermo ON
0001 : Output of outdoor comp-ON
receiving
0000: Thermo. ON
selection (T10
)
ƒ
2E Option
0000 : Default
0000 : Default
0000 : Default
0000 : Body sensor
0003 : Default
0000 : Standard
30 Option
31 Option
32 Sensor selection
40 Option
0000 : Body TA sensor
0001 : Remote controller sensor
5d High ceiling selection 0000 : Standard filter
(Air volume selection) 0001 : Oil guard, Super-long life, Optical regenerative deodorization
0003 : High performance (65%), High performance (90%),
High antibacterial performance (65%)
60 Timer set
(Wired remote
0000 : Available (Operable)
0001 : Unavailable (Operation prohibited)
0000 : Available
0000 : None
controller)
8b Correction of high
heat feeling
0000 : None
0001 : Correction
– 94 –
12-1-3. Cabling and Setting of Remote Controller Control
2-remote controller control (Controlled by two remote controllers)
One or multiple indoor units are controlled by two remote controllers.
(Max. 2 remote controllers are connectable.)
Remote controller
switch (Sub)
Remote controller
switch (Master)
• 1 indoor unit is controlled by 2
remote controllers
Sold separately
Sold separately
Remote controller
cables (Procured locally)
Terminal block for
remote controller cables
A B
Indoor unit
1 2 3
1 2 3
Outdoor unit
(Setup method)
One or multiple indoor units are controlled by two remote controllers.
(Max. 2 remote controllers are connectable.)
Rear side of remote
controller P.C. board
<Wired remote controller>
How to set wired remote controller to sub remote
controller
Remote controller
address connector
Insert the remote controller address connector
provided on the rear side of the remote controller
switch P.C. board into Sub in exchange for Master.
Master remote
controller
Sub
remote controller
<Wireless remote controller>
How to set wireless remote controller to sub
remote controller
S003
Bit 1 : OFF to ON
ON
Change OFF of Bit [3: Remote controller Sub/
Master] of switch S003 to ON.
Sensor
cover
Sensor P.C. board
Adjust
corner cap
[Operation]
1. The operation contents can be changed by Last-push-priority.
2. Use a timer on either Master remote controller or Sub remote controller.
– 95 –
12-1-4. Monitor Function of Remote Controller Switch
n Call of sensor temperature display
<Contents>
SET DATA
UNIT No.
Each sensor temperature of the remote controller, indoor
unit, and outdoor unit can become known by calling the
service monitor mode from the remote controller.
R.C. No.
<Procedure>
4
1
Push
+
buttons simultaneously for 4
UNIT
2
seconds or more to call the service monitor
mode.
SET CL
The service monitor goes on, the master indoor unit
No. is displayed, and then temperature of the item
code 00 is displayed.
1
3
<Operation procedure>
2
Push the temperature setup
to select the sensor No. (Item code) of the sensor
to be monitored.
/
buttons
1 2 3 4
The sensor numbers are described below:
Returned to usual display
Item code
Data name
Item code
Data name
Heat exchanger temp TE
Outside temp TO
Discharge temp TD
Suction temp TS
—
60
61
62
63
64
65
00
01
Room temp (under control) *1
Room temp (remote controller)
Indoor
unit data
Outdoor
unit data
02
03
04
Indoor suction temp
Indoor coil temp (TCJ)
Indoor coil temp (TC)
Heat sink temp THS
*1 Only master unit in group control
3
4
The temperature of indoor units and outdoor unit in a group control can be monitored by pushing
button to select the indoor unit to be monitored.
Pushing
button returns the display to usual display.
– 96 –
n Calling of error history
<Contents>
The error contents in the past can be called.
SET DATA
UNIT No.
<Procedure>
R.C. No.
1
Push
+
buttons simultaneously for 4
seconds or more to call the service check mode.
Service Check goes on, the item code 01 is
displayed, and then the content of the latest alarm is
displayed.The number and error contents of the
indoor unit in which an error occurred are displayed.
3
UNIT
2
SET CL
2
3
In order to monitor another error history, push
the set temperature
/
buttons to
1
change the error history No. (Item code).
Item code 01 (Latest) → Item code 04 (Old)
NOTE : Four error histories are stored in memory.
<Operation procedure>
1 2 3
Pushing
display.
button returns the display to usual
Returned to usual display
<Requirement>
Do not push button, otherwise all the error histories of
the indoor unit are deleted.
(Group control operation)
In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.
The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to
setting on the remote controller.
<System example>
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
Master
2-1
1-1
3-1
4-1
7-1
Max. 8 units
Remote controller
(1) Display range on remote controller
The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the
master unit is reflected on the remote controller.
(2) Address setup
Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic
address.
If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the
system is rebooted and the automatic address setting will be judged again.
1) Connect 3 In/Out cables surely.
2) Check line address/indoor address/group address of the unit one by one.
3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the
unit No. is not duplicated with one of another unit.
– 97 –
12-2. Network Adapter
Model name:TCB-PCNT20E
12-2-1. Function
A network adapter is an optional P.C. board to connect the indoor unit to AI net (Central control remote controller).
12-2-2. Microcomputer Block Diagram
Central control
Remote controller
remote controller
Indoor unit
Optional communication P.C. board
CN03
AI-NET
communication
circuit
CN41
Indoor control
P.C. board
Remote
CN02
controller
communication
circuit
MCU
Terminal
block
(X.Y)
CN309
Terminal
block
(A.B)
EEPROM
CN01
AC220-
240V
5V
5V
power
supply
Network
Power
transformer
Network address
setup switch
AC14V
Communication
units: Total 64 units
Communication
distance: 1km
12-2-3. Network Address Setup Switch (SW01)
No.
1
Item
Setup contents
LSB
1 2 3 4 5 6
2
×××××× : No.1 unit
〇××××× : No.2 unit
:
× : Switch OFF
3
〇 : Switch OFF
Central control address
MSB
4
5
〇〇〇〇〇× : No.63 unit
〇〇〇〇〇〇 : No.64 unit
6
7
Switch OFF : Setup available from remote controller
Switch ON : Setup unavailable from remote controller
Setup availability from
remote controller
8
12-2-4. LED Display Specification
LED No.
Function
Go on
Go off
D01 (Red) Communication status: Remote controller During communication No communication (including communication error)
D02 (Red) Communication status: Center
D03 (Red) Operation status of air conditioner
D04 (Red) Air conditioner error
During communication No communication (including communication error)
Running
Error
Stop
Normal
* For positions of LED, refer to P.C. board external view.
– 98 –
12-2-5. Communication Cable Specifications
No. Communication circuit
Communication cable specifications
Neutral 2-cable type
1
Remote controller
Cable
communication side
Cable type
CVV (JIS C3401) Controlling vinyl insulation vinyl seal cable
VCTF (JIS C3306) Vinyl cab tire round type cord
VCT (JIS C3401) 600V vinyl cab tire cable
VVR (JIS C3401) Vinyl insulation seal cable round type
MVVS Cable with net shielding for instrumentation
CPEVS Shielded polyethylene insulation vinyl seal cable
Cable dia.
0.5 to 2.0 mm²
Cable length Total cable length Max. 500m
(Up to 400m when there is wireless remote controller in group)
2
AI NET side
Cable
Neutral 2-cable type
Cable type
Cable dia.
MVVS Cable with net shielding for instrumentation
1.25 mm² ≤ 500 m, 2.0 mm² ≤ 1 km
Cable length Total cable length : Up to 500m when using 1.25mm² cable,
Up to 1000m when using 2.0mm² cable
12-2-6. Cable Connection
<Network cable connection>
• Install a network adapter per 1 group of the group control (including single unit control). Also install a network
adapter to one of the indoor units in the group control.
Central
control
remote
Indoor unit
Indoor unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
controller
X Y
X Y
Indoor
control
P.C. board
Indoor
control
P.C. board
Indoor
control
P.C. board
Indoor
control
P.C. board
Indoor
control
P.C. board
Indoor
control
P.C. board
Network
adapter
Network
adapter
A B
A B
A B
A B
A B
A B
Remote
controller
Connectable indoor units per group: Up to 8 units
(1-remote controller system*)
* In case of 2-remote controllers system,
the connectable indoor units are up to 7 units.
– 99 –
12-3. How to Set an Address Number
When connecting indoor units to the central control remote controller by using a network adapter, it is required
to set up a network address No.
• The network address No. should be agreed with the line No. of the central control remote controller.
• When the unit was shipped from the factory, the network address has been set to 1.
The following two methods to set the network address are provided.
1. How to set from the remote controller at indoor unit side
* This method is effective only when
of set switch SW01 on the network adapter P.C. board is turned off.
‡
<Procedure> Set the network address while the unit stops.
Fig. 1
1
Push
+
buttons for 4 seconds or more.
In the group control, the unit No RLL is displayed,
and then all the indoor units in the group control are
selected. In this time, fans of all the selected indoor
units are turned on. (Fig. 1)
SET DATA
UNIT No.
R.C. No.
(Keep status of RLL display without pushing
button.)
For the individual remote controller which is not
included in a group control, the line address and the
indoor unit address are displayed.
3
5
1
UNIT
2
SET CL
2
3
Specify the item code 03 using the temperature
setup
/
buttons.
4
Using the timer time
setup data.
/
buttons, select the
Table 1
The setup data are shown in the right table (Table 1).
Setup data
Network address No.
SET
4
5
Push
button. (OK if display goes on)
0001
0002
0003
:
1
2
3
• To change the item to be set, return to
Push button.
The status returns to the usual stop status.
2
.
:
0064
64
0099
Unset (Setup at shipment from factory)
2. How to set by the switch on the network adapter P.C. board
When the remote controller cannot be found or when you don’t want to change setting of the network address
No. from the remote controller, use the setup switch SW01 on the network adapter P.C. board (Network address
No. setup switch) to set the address No.
Invalid address No. setup from
remote controller
No. setup switch
<Procedure>
(1) Turn off the power.
ON
(2) Turn
of the address No. setup switch SW01 to ON
‡
side. Accordingly the address No. set on the remote
controller is invalidated. (See Fig. 2.)
ON side
OFF side
(Numeral side)
1
2
3
4 5
6
7
(3) Set the network address No. with combination of ON
and OFF of
to
of the address No. setup switch
†
SW01
Address No. setup
SW01.The relation between combination of ON/OFF
and address No. is described in Table 2.The right
figure (Fig. 3) shows an example of case that the
address No. is set to 16.
Fig. 2
Setup example of address No. 16
ON
ON side
OFF side
(Numeral side)
When the network address No. has been changed,
be sure to turn of power of the central control remote
controller again or to reset the remote controller using
the reset hole on the operation panel of the central
control remote controller.
1
2
3
4 5
6
7
Fig. 3
– 100 –
Table 2 Network address No. setup table (SW01)
〇: ON side
×: OFF side
Address No.
01
①
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
②
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
③
×
×
×
×
〇
〇
〇
〇
×
×
×
×
〇
〇
〇
〇
×
×
×
×
〇
〇
〇
〇
×
×
×
×
〇
〇
〇
〇
④
×
×
×
×
×
×
×
×
〇
〇
〇
〇
〇
〇
〇
〇
×
×
×
×
×
×
×
×
〇
〇
〇
〇
〇
〇
〇
〇
⑤
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
⑥
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Address No.
33
①
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
×
〇
②
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
×
×
〇
〇
③
×
×
×
×
〇
〇
〇
〇
×
×
×
×
〇
〇
〇
〇
×
×
×
×
〇
〇
〇
〇
×
×
×
×
〇
〇
〇
〇
④
×
×
×
×
×
×
×
×
〇
〇
〇
〇
〇
〇
〇
〇
×
×
×
×
×
×
×
×
〇
〇
〇
〇
〇
〇
〇
〇
⑤
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
⑥
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
02
34
03
35
04
36
05
37
06
38
07
39
08
40
09
41
10
42
11
43
12
44
13
45
14
46
15
47
16
48
17
49
18
50
19
51
20
52
21
53
22
54
23
55
24
56
25
57
26
58
27
59
28
60
29
61
30
62
31
63
32
64
Requirement in Service
When using this product as service part to replace the network adapter P.C. board, be sure to match the setup
of the setup switch SW01 (Network address No. setup switch) on the network adapter P.C. board with the P.C.
board setup before replacement.
– 101 –
12-4. Display and Operation of Main Remote Controller and Central Control Remote
Controller
1. Turn on all the power supplies of the air conditioner, and then turn on power of the central control remote
controller (Line 16 RBC-SXC1P, Line 64 TCB-SC641). If both power supplies are simultaneously turned on or
if they are turned on reversely, the check code [97] may be temporarily displayed on the central remote
controller. When settings of connecting cables and central control address are correct, the connected air
conditioner is displayed on the central control remote controller.
2. As shown in the following table, there is difference of LCD between main remote controller (RBC-AMT21)
and the central control remote controller and also there are restriction and others of operation.
Contents
Item
Cautions
Main remote controller Central control remote controller
1
Air volume selection [SPEED] [AUTO]
[VOL]
[AUTO]
[H]
[M]
Display of air speed selection differs.
[HH]
[H]
[L]
[L]
[SPEED]
[HH]
[VOL]
[VOL]
In duct type
Air speed becomes [H] and [FIX].
[FIX]
2
3
Air speed selection
in FAN mode
[SPEED]
[AUTO]
[H]
[M]
When handling main remote controller, [AUTO] is
not displayed. If [AUTO] is selected at center side,
[AUTO] is displayed on the main remote controller.
In this time, the air speed becomes [HH].
[HH]
[H]
[L]
[L]
Air speed selection
in DRY mode
[SPEED] [AUTO]
[VOL]
[AUTO]
On the central remote controller, only [AUTO] is
displayed. The display on the main remote
controller changes to [AUTO] by changing the
setup temperature/louver, and the air speed is
automatically selected.
[HH]
[H]
[L]
4
Air direction
adjustment
[SWING] and air
direction adjustment
[LOUVER]
On the central remote controller, only [LOUVER] is
displayed. It is displayed while flap is swinging,
and the setup operation of [LOUVER] becomes
selection of swing ON/OFF.
To set up the air direction, use the main remote
controller.
(No display)
Manual operation for
[LOUVER]
In a model type without air direction adjustment
5
6
Check button
Check code
Test run (4 seconds)
Check code display and
check reset (3 seconds) check button differs. If the check reset operation
on the central remote controller is performed
The function of long-pushing operation for the
during operation of air conditioner, the operation
stops once, and then the operation restarts. (Error
of air conditioner is cleared.)
3-digits display (alpha-
bet + 2-digits numeral)
2-digits display (alpha-
bet or numeral)
Display of check code differs.
Ex. : Float switch operation
Main side: [P10]
Center side: [0b]
3. When using the remote controller together with the former one (RBC-AM1, AT1), the display on the main
remote controller differs if [Last-push priority/Center/Operation Prohibited] is selected from the central control
remote controller.
Contents
Item
Remarks
New remote controller
(RBC-AMT21)
Former remote controller
(RBC-AM1, AT1)
1
2
Last-push priority
Center
(No display)
(No display)
All the settings and ON/OFF operations are
available.
[CENTER] goes on
[CENTER] goes on
The setup contents on the central control remote
controller are fixed, and only ON/OFF operation
and timer setup operation are available on the
main remote controller.
3
Operation prohib-
ited
[CENTER] flashes
The setup contents on the central control remote
controller are fixed, and the air conditioner stops.
Operation from the main remote controller is
unavailable.
– 102 –
13. ADDRESS SETUP
13-1. Address Setup
<Address setup procedure>
When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor
unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address
setup completes with power-ON of the outdoor unit.The operation of the remote controller is not accepted while
automatic address works. (Approx. 4 to 5 minutes)
Setup of line address of outdoor unit,
indoor unit address, and group address
Completion of cabling work
NO
Do you arbitrarily set the
indoor unit address?
YES
NO
NO
(MANUAL)
Is refrigerant line 1 line?
YES
Is group control performed?
YES
(To AUTO address mode)
Do you change setting after
automatic setting at the first time?
YES
Connect one remote controller with
one indoor unit (1 : 1) tentatively with
communication cable.
Turn on power of outdoor unit.
Turn on power of outdoor unit.
Turn on power of outdoor unit.
After completion of address
setup, change is to arbitral
address/group manually.
Setup of automatic
address finishes within
4 to 5 minutes.
(
)
Set to all indoor units one by one.
(
)
END
• When the following addresses are not stored in the neutral memory (IC10) on the indoor P.C. board, a test run
operation cannot be performed. (Unfixed data at shipment from factory)
Item code
Data at shipment
Setup data range
0001 (No. 1 unit) to 0030 (No. 30 unit)
Line address
12
13
0099
0099
Indoor unit address
0001 (No. 1 unit) to 0030 (No. 30 unit)
Max. value of indoor units in the identical refrigerant line (Double twin = 4)
Group address
14
0099
0000 : Individual (Indoor units which are not controlled in a group)
0001 : Master unit (1 indoor unit in group control)
0002 : Sub unit (Indoor units other than master unit in group control)
– 103 –
13-2. Address Setup & Group Control
<Terminology>
Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64)
Group address : 0 = Individual (Not group control)
1 = Master unit in group control
2 = Sub unit in group control
Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from
the remote controllers and sub indoor units. (* It has no relation with an indoor unit which
communicates serially with the outdoor units.)
The operation mode and setup temperature range are displayed on the remote controller
LCD. (Except sir direction adjustment of flap)
Sub unit (= 2)
: Indoor units other than master unit in group operation
Basically, sub units do not send/receive signals to/from the remote controllers.
(Except errors and response to demand of service data)
13-2-1. System configuration
2. Single group operation
1. Single
Outdoor
1-1
Individual
2-1
Sub
1-1
Sub
4-1
Master
3-1
Sub
8-1
Sub
Indoor
(Master/Sub)
Remote
controller
13-2-2. Automatic address example from unset address (No miscabling)
1. Standard (One outdoor unit)
1) Single
2) Gr operation
(Multiple outdoor units = Miltiple indoor units only with serial
communication)
1-1
Individual
2-1
Sub
1-1
Sub
4-1
Master
8-1
Sub
(Master/Sub)
Max. 8 units
Only turning on source power supply (Automatic completion)
– 104 –
13-3. Address Setup
In case that addresses of the indoor units will be determined prior to piping work after cabling work
(Manual setting from remote controller)
<Address setup procedure>
• Set an indoor unit per a remote controller.
• Turn on power supply.
(Example of 2-lines cabling)
SET
1
2
Push
+
+
buttons simultaneously
(Real line: Cabling, Broken line: Refrigerant pipe)
for 4 seconds or more.
OUT
OUT
(← Line address) Using the temperature setup
/
buttons, set 12 to the item code.
3
4
5
Using timer time
/
buttons, set the line address.
SET
Push
button. (OK when display goes on.)
(← Indoor unit address) Using the temperature setup
buttons, set 13 to the item code.
/
IN
IN
6
7
8
Using timer time
/
buttons, set 1 to the line address.
SET
Push
button. (OK when display goes on.)
2
1
2
Line address
Indoor unit address
Group address
1
1
1
(← Group address) Using the temperature setup
buttons, set 14 to the item code.
/
9
Using timer time
buttons, set 0000 to Individual,
0001 to Master unit, and 0002 to sub unit.
/
For the above example, perform setting by connecting
singly the wired remote controller without remote
controller inter-unit cable.
SET
10
11
Push
button. (OK when display goes on.)
Group address
Individual : 0000
Push
button.
Master unit : 0001
In case of group control
Setup completes.
(The status returns to the usual stop status.)
Sub unit
: 0002
SET DATA
UNIT No.
R.C. No.
3, 6, 9
END
11
UNIT
2, 5, 8
1
SET CL
4, 7, 10
<Operation procedure>
END
1 2 3 4 5 6 7 8 9 10 11
– 105 –
n Confirmation of indoor unit No. position
1. To know the indoor unit addresses though position of the indoor unit body is recognized
• In case of individual operation (Wired remote controller : indoor unit = 1 : 1)
(Follow to the procedure during operation)
<Procedure>
CODE No.
1
2
Push
Push
button if the unit stops.
button.
UNIT No.
Unit No. 1-1 is displayed on LCD.
1
(It disappears after several seconds.)
Operation
The displayed unit No. indicate line address and
indoor unit address.
UNIT
(When other indoor units are connected to the
identical remote controller (Group control unit), other
unit numbers are also displayed every pushing
button.
SET CL
2
<Operation procedure>
END
1 2
2. To know the position of indoor unit body by address
• To confirm the unit No. in the group control
(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)
<Procedure>
The indoor unit numbers in the group control are succes-
sively displayed, and fan, flap, and drain pump of the
corresponding indoor unit are turned on. (Follow to the
procedure during operation)
SET DATA
UNIT No.
R.C. No.
1
Push
seconds or more.
and
buttons simultaneously for 4
• Unit No. ALL is displayed.
1
• Fans and flaps of all the indoor units in the group
control operate.
UNIT
SET CL
2
Every pushing
the group control are successively displayed.
button, the unit numbers in
3
2
• The unit No. displayed at the first time indicates the
master unit address.
<Operation procedure>
• Fan and flap of the selected indoor unit only
operate.
END
1 2 3
3
Push
button to finish the procedure. All the
indoor units in the group control stop.
– 106 –
RAV-SM800AT-E LED display when SW800 : Bit 1, 2, 3, 4 OFF
• When multiple errors are detected, the latest error is displayed.
• While LED displays 〇(go on), there is the main cause of error in control at CDB side and it stops abnormally.
• While LED displays ◎(flash), there is the main cause of error in control at IPDU side and it stops abnormally.
• For an error in case thermo operation, the communication is interrupted on the serial circuit. If continuing the
case thermo operation, serial sending to the indoor unit is interrupted and a serial communication error is
output.
Table A
Check code
B type
LED display
No.
Item
D800
(Red)
D801
D802
D803
(Yellow) (Yellow) (Yellow)
1
2
3
4
5
6
TE sensor error
TD sensor error
TS sensor error
TO sensor error
18
19
18
1B
1E
1A
〇
〇
●
●
●
〇
●
〇
●
〇
〇
〇
●
●
〇
●
〇
〇
●
●
●
●
●
●
Discharge temp error
Out DC fan error
CDB side
Communication error between IPDU
(Abnormal stop)
7
8
1C
〇
●
●
〇
●
●
〇
〇
21
—
—
High-pressure release operation
9
EEPROM error
〇
●
〇
●
●
〇
〇
〇
Communication error between IPDU
(No abnormal stop)
10
—
11 G-Tr short-circuit protection
12 Detection circuit error
13 Current sensor error
14 Phase missing detection
15 Comp lock error
14
16
17
17
1D
1F
◎
●
◎
●
●
◎
●
◎
◎
●
●
●
●
●
●
●
◎
◎
●
●
●
◎
●
●
IPDU side
16 Comp breakdown
〇: Go on, ●: Go off, ◎: Flash (5 Hz)
– 107 –
14. TROUBLESHOOTING <WALLTYPE>
14-1. Summary ofTroubleshooting
<Wired remote controller type>
1. Before troubleshooting
1) Required tools/instruments
• + and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
The following operations are normal.
a) Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Does not thermostat turn off?
• Does not timer operate during fan operation?
• Is not detected an overflow error?
• Is not outside high-temperature operation controlled in heating operation?
b) Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
c) Outdoor fan does not rotate or air speed changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
d) ON/OFF operation cannot be performed from remote controller.
• Is not during emergency operation?
• Is not the control operation performed from outside/remote side?
‚ Did you return the cabling to the initial positions?
ƒ Are connecting cables of indoor unit and remote controller correct?
2. Troubleshooting procedure
When a trouble occurred, check the parts along with the following procedure.
Trouble
→
Confirmation of check code display
→
Check defective position and parts.
NOTE :
For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer
noise is considered except the items to be checked. If there is any noise source, change the cables of the
remote controller and the signal line to shield cables.
– 108 –
(a) Outline of Judgment
A primary judgment to detect cause of error exists on the indoor unit or outdoor unit is performed in the
following procedure.
<Judgment by flashing display on the indoor unit display part>
The indoor unit monitors operating status of the air conditioner, and if a protective circuit works, contents of
the self-diagnosis are displayed with a block restricted to the following cases on the indoor unit display part.
Remote
controller code
Block display
Contents of self-diagnosis
Check code
—
00
01
02
03
—
Operation lamp display flashes. (1Hz)
Operation lamp display flashes. (5Hz)
Operation/timer lamp displays flash. (5Hz)
Operation/defrost lamp displays flash. (5Hz)
Power failure (In power ON)
Indoor P.C. board
——
0b to 0F, 11, 12, b5, b6
04
Inter-unit cables/transmission system
Outdoor P.C. board
14 to 19, 1A, 1C
1d, 1E, 1F, 21
1b, 8b
Operation/timer/defrost lamp displays flash. (5Hz) Cycle system, etc.
—— ——
(b) Self-diagnosis by check code on the remote controller
Refer to “Judgment of error mode by check code on the remote controller”.
<Wireless remote controller type>
1. Before troubleshooting
1) Required tools/instruments
• + and – screwdrivers, spanners, radio cutting pliers, nippers, etc.
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
The following operations are normal.
a) Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Does not thermostat turn off?
• Does not timer operate during fan operation?
• Is not outside high-temperature operation controlled in heating operation?
b) Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
c) Outdoor fan does not rotate or air volume changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
d) ON/OFF operation cannot be performed from remote controller.
• Is not forced operation performed?
• Is not the control operation performed from outside/remote side?
‚ Did you return the cabling to the initial positions?
ƒ Are connecting cables between indoor unit and receiving unit correct?
– 109 –
2. Troubleshooting procedure
When a trouble occurred, check the parts along with the following procedure.
Trouble
→
Confirmation of check code by service mode
→
Check defective position and parts.
NOTE :
For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer
noise is considered except the items to be checked. If there is any noise source, change the cable of the signal
line to shield cable.
(a) Outline of Judgment
A primary judgment to detect cause of error exists on the indoor unit or outdoor unit is performed in the
following procedure.
<Judgment by flashing display on the indoor unit display part>
The indoor unit monitors operating status of the air conditioner, and if a protective circuit works, contents of
the self-diagnosis are displayed with a block restricted to the following cases on the indoor unit display part
(Sensors).
Remote
controller code
Block display
Contents of self-diagnosis
Check code
—
00
01
02
03
—
Operation lamp display flashes. (1Hz)
Operation lamp display flashes. (5Hz)
Operation/timer lamp displays flash. (5Hz)
Operation/defrost lamp displays flash. (5Hz)
Power failure (In power ON)
Indoor P.C. board
——
0b to 0F, 11, 12, b5, b6
04
Inter-unit cables/transmission system
Outdoor P.C. board
14 to 19, 1A, 1C
1d, 1E, 1F, 21
1b, 8b
Operation/timer/defrost lamp displays flash. (5Hz) Cycle system, etc.
—— ——
(b) Self-diagnosis by check code on the remote controller
In the wireless type models, the self-diagnosis for the protective circuit operation is performed by handling
the remote controller. First change the operation mode of the remote controller, and then perform the self-
diagnosis by the displayed contents of the remote controller and the existence of operation lamp flashing
(5Hz) and buzzer sound (Pi, Pi, Pi). During self-diagnosis operation, the timer lamp usually flashes (5Hz).
Selection of remote controller operation mode
1) Selection of service mode
Push the select button at lower side of the wireless remote controller with a tip of pencil, etc. for
approx. 3 seconds or more. In this time, check that [00] is displayed on the room temp. display part
and other displays go off.
2) Selection of normal mode
Push the reset button at lower side of the wireless remote controller with a tip of pencil, etc. In this
time, check that [“AM”] display on the time display part flashes.
‚ Cautions in service
1) After service work, be sure to push the reset button to return the mode to normal mode.
2) After service by the check codes, turn off the power switch once and then turn on the switch to return
the stored memory in microcomputer to the initial status.
– 110 –
(c) Self-diagnosis with remote controller
With the indoor unit control, self-diagnosis of protective circuit action can be done by turning the remote
controller operation into service mode, operating the remote controller, observing the remote controller
indicators and checking whether TIMER lamp flashes (5 Hz).
NOTE :
• To perform this self-diagnosis, the remote controller with the service code of 43069666 is required.
<How to select remote control operation mode>
1. Selecting service mode
Push the switch button provided on rear bottom of the wireless remote control with a tip of pencil for more
“
”
than 3 seconds. Make sure the setting temperature
turned off.
is displayed on the display and other display is
2. Selecting ordinary mode
Push the all clear button (ACL) on the rear bottom of the wireless remote controller with a tip of pencil for
more than 3 seconds. Make sure the operation mode display, wind volume display, clock display and setting
temperature display are turned on and “ : ” of the clock display is flashing.
<Cautions when doing service>
1. After completion of servicing, always push the all clear (ACL) button to return the operation mode to the
normal mode.
2. After completion of servicing by the check code, turn off the power once and then turn on the power to reset
memorized contents of the microcomputer to the initial status.
All clear button
Switch for selecting
service mode
ACL
CLOCK
ACL CLOCK
Rear bottom cover
(Rear bottom of remote control)
– 111 –
<Self-diagnosis by check codes>
1. The self-diagnosis by the check codes is conducted under the block displays.
2. Remote controller key operation under the service mode is conducted by ON/OFF or TEMP.The remote
controller display by each key operation is varied as shown below. Two digit number is displayed in a hexa-
decimal number.
3. The self-diagnosis by the check codes is conducted with procedures shown below.
“
”
.
1) Enter the service mode and make sure the off timer display of the remote controller shows
2) Operate the “ON/OFF” key and make sure the timer lamp on the display section is flashing (5 Hz).
3) At the same time, also make sure the operation lamp is also flashing. This shows that the protection
circuit on the indoor P.C. board is working.
“
”
4) Operate the TEMP.
key and make sure the remote controller display shows
and flashing of the
operation lamp. If the operation lamp is flashing, it shows the protection circuits for connecting cable is
working or thermal fuse is blown.
5) In the same way, operate the TEMP.
key so that the display is increased one by one to continue checks
“
”
“
”
by the self-diagnosis as shown in the next table. From
up to
check operations of protection
“
”
“
”
circuits for each block, and
to
check operations of the typical protection circuits.
Operating key
Indication after operation
”
“
ON/OFF
TEMP.
”
”
”
”
”
”
”
”
“
“
“
“
“
“
“
“
1 is added to data before operation.
(Up)
(Example)
1 is subtracted from data before operation.
(Example)
TEMP.
(Down)
10 is subtracted from data before operation.
(Example)
“AUTO” LOUVER
Data before operation is directly transferred.
(Example)
“SET” LOUVER
– 112 –
14-2. Troubleshooting with CHECK Display of Remote Controller
14-2-1. In case of main remote controller/sub-remote controller A
RBC-AM1E
RBC-AS1E
1. Operation for CHECK display
When pushing the CHECK switch, the indoor unit No. (Group address No.) which sends the check code is
displayed at the right side of the set up TEMP. display section, and the check data of 2 errors/faults x 16 units
is displayed in the set up temp. display section.
If there is a filter display, the indoor unit No. which sends the filter signal is displayed at the right side of the
set up temp. display section, and then the check code is displayed as described above.
(1 display for 3 seconds)
LCD display “STANDBY”
is present.
MODE FAN TEMP.
• When phase-sequence of power
wiring is incorrect
F A N
CHECK A D D R E S S UNIT STANDBY
C O O L 1 2
FILTER
PREHEAT
DEFROST
• When combination of indoor units
is over capacity
H E AT AU TO
LOUVER
FIX
CENTRAL MANUAL
• Indoor unit with command
excepted by operation mode
select switch
MODE
• When there is an indoor unit
which stopped with the indoor
overflow alarm “0b”.
FILTER CHECK
• Indoor unit with cooling operation
command excepted by heating
priority control
ON/OFF
RESET switch
Push the switch in the hole with pin.
The remote controller resets the power supply.
(All data is cleared.)
CHECK switch
Push for 0.5 seconds to display CHECK code.
Push for 3 seconds to reset indoor microprocessor.
(While indoor microprocessor is locked by ALL STOP alarm)
Push for 10 seconds to clear check data.
– 113 –
2. Reading of CHECK monitor display
<7 segment display>
Hexadecimal
notation
Decimal notation
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
<Display on CHECK monitor>
CHECK
1 2
UNIT
FILTER sign
Indoor unit No.
FILTER
CHECK code
<FILTER data>
(Example) Case that Filter signal is sent from No.1 and No.16 units under group operation
UNIT
UNIT
FILTER
FILTER
<CHECK data>
(Example) Room temp.sensor of No.1 is defective.
In No.16, first the heat exchanger sensor has failed.
Next, interconnection wire (serial signal line) of indoor/outdoor is defective.
CHECK
1
UNIT
CHECK
1
UNIT
CHECK
2
UNIT
(Example) There is no check data.
CHECK
– 114 –
14-2-2. Remote controller with timer
RBC-AM1E
1. Operation for CHECK display
When pushing the CHECK switch, the indoor unit No. (Group address No.) which sends the check code is
displayed in the set up temp. display section, and check code is displayed in the TIME display section.
If FILTER display (air filter cleaning sign) is present, the indoor unit No. which sends the filter signal is dis-
played in the set up temp. display section, and then the check code is displayed. (1 display for 3 seconds)
LCD display STANDBY is present.
• When phase-sequence of power wiring is incorrect
• When combination of indoor units is over capacity.
• Indoor unit with command excepted by operation mode select switch
• When there is an indoor unit which stopped with the indoor overflow alarm “0b”.
• Indoor unit with cooling operation command excepted by heating priority control
REMOTE CONTROLLER
MODE FAN
FAN ONLY AUTO
PREHEAT
DEFROST
OPERATION
STANDBY
FILTER
COOL
HIGH
MED
LOW
FIX
MODE
HEAT
TEMP CHECK LOUVER
UNIT DEMAND MANUAL
C
F
TIMER ADJUST
FILTER
CONT.OFF ON ADDRESS
TIMER
CHECK
AFTER
H
M
ON/OFF
(This display is for remote control with timer.)
CHECK switch
RESET switch
Push for 0.5 seconds to display CHECK code.
Push the switch in
the hole with pin.
The remote controller
resets initialized.
Push for 3 seconds to reset indoor microprocessor.
(While indoor microprocessor is locked by ALL STOP alarm)
Push for 10 seconds to clear check data.
(All data is cleared.)
– 115 –
2. Reading of CHECK monitor display
<7 segment display>
Hexadecimal
notation
Decimal notation
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
<FILTER data>
(Example) Filter signal is sent from No.1 and No.15 units under grouping operation
FILTER
FILTER
CHECK
CHECK
UNIT
UNIT
<CHECK data>
CHECK
Unit No.
UNIT
Check code detected at first
Check code detected at last
(Example) Room temp.sensor of No.1 is defective.
In No.15, first the indoor heat exchanger sensor has failed.
Next, interconnection wire (bus communication line) of
indoor/outdoor is defective.
(Example) There is no check
data.
CHECK
CHECK
CHECK
UNIT
UNIT
After 3
seconds
– 116 –
14-2-3. Central remote controller
1. Operation for CHECK display
When pushing the CHECK switch, the indoor unit No. (Network address No.) including the check data is
displayed in the UNIT No. display section, and the check code is displayed in the set up temp. display sec-
tion.
CHECK switch
ON
MONITOR ZONE
SET ALL
ON
CENTER AUX.TYPE
STANDBY
FILTER
Push for 0.5 seconds to display CHECK code.
Push for 3 seconds to reset indoor microprocessor.
(While indoor microprocessor is locked by ALL STOP alarm)
UNIT
10 11 12 13 14 15 16
OFF LOCKED TIMER No.
MODE FAN TEMP. CHECK
FAN ONLY AUTO
1
2
3
4
5
6
7
8
9
1
2
C
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
COOL HIGH
DRY MED.
HEAT LOW
AUTO FIX
LOUVER
MANUAL
Push for 10 seconds to clear check data.
MONITOR/SET ALL/ZONE
ZONE SET/ENTER SELECT
ZONE
UNIT
ON
CENTER/LOCKED
FILTER RESET CHECK
LOUVER
MODE TEMP.
OFF
TIMER ON FAN
RESET switch
Push the switch in the hole with pin.
The remote controller resets initialized.
(All data is cleared.)
2. Reading of CHECK monitor display
<7 segment display>
Hexadecimal
notation
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
Decimal notation
<Display on CHECK monitor>
Unit line No. (Network address No.)
MONITOR ZONE
SET ALL
ON
CENTER AUX.TYPE
STANDBY
FILTER
UNIT
OFF LOCKED TIMER No.
MODE FAN TEMP. CHECK
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
FAN ONLY AUTO
COOL HIGH
DRY MED.
HEAT LOW
AUTO FIX
1
2
C
LOUVER
MANUAL
(Example)
There is no check data.
Check code detected at first
Check code detected at last
UNIT
TEMP. CHECK
<CHECK data>
(Example)
In No.1 unit, first the interconnection wire (bus communication line) of indoor/outdoor has failed.
Next, the room temp. sensor is defective.
For No.16 unit, the high pressure switch at the inverter unit side operates.
UNIT
UNIT
UNIT
TEMP. CHECK
1
TEMP. CHECK
2
TEMP. CHECK
1
– 117 –
14-3. Check CodeTable
Error mode detected by indoor unit (1)
Operation of diagnostic function
Judgment and measures
Block
display
Check
code
Status of air
conditioner
Cause of operation
Condition
[MODE]
[TIMER] lamp
5Hz flash
The serial signal is not output
from outdoor unit to indoor unit. continues
Operation
Displayed when 1. Outdoor unit does not completely
error is detected
operate.
• Miscabling of inter-unit cables
• Inter-unit cable check, correction of
miscabling
• Defective serial sending
circuit on outdoor P.C. board
• Outdoor P.C. board check, P.C. board
cables check
• Defective serial receiving
circuit on outdoor P.C. board
• Compressor case thermo check
• Compressor case thermo
2. In normal operation
operation
When outdoor sending serial LED
(Green) flashes, the receiving serial
LED (Orange) also flashes. : Indoor
P.C. board (Main P.C. board) check
When the receiving serial LED
(Orange) does not flash: Outdoor P.C.
board check
BUS communication circuit error Operation
Displayed when 1. Communication line check, miscabling
continues
(According
to remote
error is detected
check
* BUS communication was
interrupted over the specified
time.
Power supply check for central
controller (Central control remote
controller, etc.) and indoor unit
controller of
indoor unit)
2. Communication check (XY terminal)
3. Indoor P.C. board check
4. Central controller check
(Communication P.C. board)
Network address miss-setting
Operation
continues
Displayed when 1. Check central control system network
error is detected
address setting. (SW02)
• Addresses of central
controllers (Central control
remote controller, etc.) are
duplicated.
2. Indoor P.C. board check
3. Central controller check
(Communication P.C. board)
Error in 4-way valve system
Operation
continues
Displayed when 1. Check 4-way valve.
error is detected
• Indoor heat exchanger
temperature rise after start of
cooling operation.
2. Check 2-way valve and non-return
valve.
3. Check indoor heat exchanger sensor
(TC).
• Indoor heat exchanger
temperature fall after start of
heating operation.
4. Check indoor P.C. board (Main P.C.
board).
Error in other cycles
Operation
continues
Displayed when 1. Compressor case thermo operation
error is detected
• Indoor heat exchanger temp
(TC) does not vary after start
of cooling/heating operation.
2. Coming-off of detection part of indoor
heat exchanger sensor
3. Check indoor heat exchanger sensor
(TC).
*
4. Check indoor P.C. board (Main P.C.
board).
[MODE] lamp
5Hz flash
Coming-off, disconnection or
short of indoor temp sensor
(TA)
Operation
continues
Displayed when 1. Check indoor temp sensor (TA).
error is detected
2. Check indoor P.C. board (Main P.C.
board).
Coming-off, disconnection or
short of indoor temp sensor
(TC)
Operation
continues
Displayed when 1. Check indoor temp sensor (TC).
error is detected
2. Check indoor P.C. board (Main P.C.
board).
Coming-off, disconnection or
short of indoor temp sensor
(TCJ)
Operation
continues
Displayed when 1. Check indoor temp sensor (TCJ).
error is detected
2. Check indoor P.C. board (Main P.C.
board).
: No display in the setting at shipment
*
– 118 –
Error mode detected by indoor unit (1)
Operation of diagnostic function
Judgment and measures
Block
display
Check
code
Status of air
conditioner
Cause of operation
Condition
[MODE] lamp
5Hz flash
Error in indoor fan system
All stop
Displayed when 1. Check indoor fan motor connector
error is detected
circuit (CN210).
Revolutions frequency error of
fan
2. Check indoor fan.
3. Check indoor P.C. board (Main P.C.
board).
Error in indoor unit or other
positions
Operation
continues
Displayed when 1. Check indoor P.C. board
error is detected (EEPROM and peripheral circuits)
(Main P.C. board).
1. EEPROM access error
Outside error input
Operation
continues
Displayed when 1. Check outside devices.
error is detected
Detected by input voltage level
from outside devices
2. Check indoor P.C. board (Main P.C.
board).
Outside interlock input
All stop
Displayed when
error is detected
Detected by input voltage level
from outside devices
Error mode detected by indoor unit (2)
Operation of diagnostic function
Judgment and measures
Check
code
Status of air
conditioner
Cause of operation
Condition
Serial return signal is not sent ON/OFF
from No. 1 indoor unit to
remote controller.
Displayed when 1. Indoor unit does not completely operate.
error is detected
• Check inter-unit cable.
• Check indoor P.C. board. (Main/Sub P.C. boards)
• Check remote controller.
• Miscabling of inter-unit cable
between remote controller
and indoor unit
2. In normal operation
• Miss-setting of indoor unit No.
(Group address)
• Check setting of indoor unit No.
(SW01) (Sub P.C. board)
• Check remote controller.
– 119 –
Error mode detected by outdoor unit
Operation of diagnostic function
Judgment and measures
Check
code
Status of air
conditioner
Cause of operation
Condition
Inverter over-current protective All stop
circuit operates.
(For a short time)
Displayed when 1. Inverter immediately stops even if restarted.
error is detected
• Compressor rare short
2. Check IPDU.
• Cabling error
Error on current detection
circuit
All stop
Displayed when 1. Compressor immediately stops even if restarted.
error is detected
: Check IPDU.
• Current value is high at AC
side even while compressor
stops.
2. Phase-missing operation of power supply
• Check power voltage of R, S, T.
• Phase of power supply is
missed.
Coming-off, disconnection or
short of outdoor temp sensor
All stop
All stop
Displayed when 1. Check outdoor temp sensor (TE, TS).
error is detected
2. Check CDB.
Coming-off, disconnection or
short of outdoor temp sensor
Displayed when 1. Check outdoor temp sensor (TD).
error is detected
2. Check CDB.
Compressor drive output error All stop
• Tin thermistor temp, Tin error
Displayed when 1. Abnormal overload operation of refrigerating cycle
error is detected
2. Loosening of screws and contact error of IPDU and
heat sink
(IPDU heat sink temp. is high.)
3. Cooling error of heat sink
4. Check cabling of CDB and IPDU.
Communication error between
IPDU
• Connector coming-off
between CDB and IPDU
Compressor does not rotate.
All stop
Displayed when 1. Compressor error (Compressor lock, etc.)
error is detected
: Replace compressor.
(Over-current protective circuit
works when constant time
passed after activation of
compressor.)
2. Cabling trouble of compressor (Phase missing)
Discharge temp error
All stop
All stop
Displayed when 1. Check refrigerating cycle. (Gas leak)
error is detected
• Discharge temp over
specified value was detected.
2. Error of electron control valve
3. Check pipe sensor (TD).
Compressor breakdown
Displayed when 1. Check power voltage. (AC200V 20V)
error is detected
• Operation frequency lowered
and stops though operation
had started.
2. Overload operation of refrigerating cycle
3. Check current detection circuit at AC side.
High-voltage protection error
by TE sensor
All stop
All stop
Displayed when
error is detected
1. Overload operation of refrigerating cycle
2. Check outdoor temp sensor (TE).
• TE temp over specified value
was detected.
DC outdoor fan motor error
Displayed when 1. Position detection error
error is detected
• IDC operation or lock was
detected by DC outdoor fan
driving.
2. Over-current protection circuit operation of outdoor fan
drive unit
• Check CDB.
• Refer to Judgment of outdoor fan.
Error on IPDU position
detection circuit
All stop
Displayed when 1. Position detection circuit operates even if driving by
error is detected
removing 3P connector of compressor.
• Replace IPDU.
Coming-off, disconnection or
short of outdoor temp sensor
Operation
continues
Displayed when 1. Check outdoor temp sensor (TO).
error is detected
2. Check P.C. board.
– 120 –
14-4. Troubleshooting for Each Check Code
[1A error]
Are connections of CN301 and
CN300 of CDB correct?
YES
Does the fan rotate without trouble
NO
when handling the fan with hands under condition
of removing CN301 and CN300 from CDB?
CN301
YES
The status that the resistance values
between leads below are 50 to 80
for 40W motor (ICF-140-43) and 25 to 55
NO
for 60W motor (ICF-140-63-1) is normal.
1
2
Between
Between
Between
(Red lead) and
(White lead)
(Black lead)
2
3
(White lead) and
(Black lead) and
(Red lead)
3
1
CN300
of motor winding of connector (CN301)
YES
• For RAV-SM560AT-E, CN300 changes to
CN301, and CN301 to CN300, respectively.
The status that there is
NO
5k to 20k resistance values between
1
(Yellow lead) and
4
(Pink lead)
of motor position detection of connector
(CN300, CN302) is normal.
YES
Defective fan motor
Normal fan motor
(CDB error)
NOTE :
However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.
When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.
RAV-SM560AT-E
Control P.C. board
CN300
RAV-SM800AT-E
CDB P.C. board
CN301
Objective P.C. board
Fan motor winding
Motor position detection
CN301
CN300
– 121 –
[04 error]
NO
Does outdoor unit operate?
YES
NO
NO
Are 1, 2, 3 inter-unit
cables normal?
Correct inter-unit cable.
YES
Correct connection
of connector.
Are connections of
connectors normal?
YES
Is DC310 to 340V
NO
applied between terminals
of electrolytic capacitor
of IPDU main circuit?
Replace IPDU.
* For RAV-SM560AT-E,
replace control P.C. board.
YES
* For RAV-SM560AT-E,
check case thermo.
Is DC310 to 340V
power supplied to CDB?
(CN03)
NO
Replace IPDU.
YES
NO
NO
Correct connection
of connector.
Is case thermo
(CN500) connected?
YES
Check CDB.
Does case thermo operate?
YES
Defect
Replace
* For RAV-SM560AT-E,
replace control P.C. board.
NO
Does LED (D05) (Orange)
on indoor main P.C. board flash?
YES
Check CDB.
Defect Replace
Check/Correct charged
refrigerant amount.
* For RAV-SM560AT-E,
replace control P.C. board.
* For RAV-SM560AT-E,
replace control P.C. board.
Check main indoor main P.C. board
(MCC-1370A).
Defect Replace
– 122 –
[08 error]
Is 200V applied to
4-way valve coil terminal
in heating operation?
NO
YES
Is operation of
4-way valve normal?
YES
NO
Is flow of refrigerant by
2-way valve, check valve,
or electron expansion
valve normal?
NO
Check 4-way valve.
YES
Check and replace
2-way valve, check
valve, or electron
expansion valve.
NO
Is circuit cable normal?
YES
Check and correct circuit.
Are characteristics
of TC sensor resistance
value normal?
NO
* For RAV-SM560AT-E,
check control P.C. board.
YES
* Refer to Characteristics-2.
NO
Check CDB P.C. board.
YES
Replace TC sensor.
Check indoor main P.C. board
(MCC-1370A) and
sub P.C. board (MCC-1370B).
Defect Replace
Check CDB P.C. board.
Defect Replace
* For RAV-SM560AT-E,
replace control P.C. board.
• In cooling operation, if high pressure is abnormally raised, [08 error] may be displayed. In this case, remove
cause of pressure up and then check again referring to the item [21 error].
[0C error]
NO
Is connection of TA sensor connector
Correct connection of connector.
(Indoor main P.C. board CN04) normal?
YES
NO
Are characteristics of
TA sensor resistance value normal?
Replace TA sensor.
YES
* Refer to Characteristics-1.
Check indoor P.C. board
(MCC-1370A).
Defect
Replace
– 123 –
[0d error]
NO
Is connection of TC sensor connector
Correct connection of connector.
Replace TC sensor.
(Indoor P.C. board CN05) normal?
YES
NO
Are characteristics of
TC sensor resistance value normal?
YES
* Refer to Characteristics-2.
Check indoor P.C. board
(MCC-1370A).
Defect
Replace
[0F error]
NO
Is connection of TCJ sensor connector
(Indoor P.C. board CN20) normal?
Correct connection of connector.
Replace TCJ sensor.
YES
NO
Are characteristics of
TCJ sensor resistance value normal?
YES
* Refer to Characteristics-2.
Check indoor P.C. board
(MCC-1370A).
Defect
Replace
– 124 –
[99 error]
NO
Is inter-unit cable of
A, B and C normal?
Correct inter-unit cable
of remote controller.
YES
YES
Is there no disconnection or
contact error of connector?
Correct connection of connector.
Check circuit cables.
NO
YES
Is individual (1 : 1) operation?
NO
NO
Is unit set to No.1?
YES
Set the unit to No.1.
NO
Are not No.1 unit
duplicated?
YES
NO
Does indoor unit operate?
YES
Does LED (Green)
on indoor main P.C. board flash?
(D13)
YES
NO
Check indoor main P.C. board
(MCC-1370A).
Avoid duplication of
unit No.1 setting.
Check remote controller P.C. board.
Defect Replace
Defect
Replace
– 125 –
[11 error]
Turn off the breaker once.
Turn on the breaker
after approx. 10 seconds.
NO
Does fan stop when
operation stopped?
YES
NO
Is DC1V or more voltage applied
+
–
Replace indoor fan motor.
between 5
and 3
of the
motor connector (CN210)?
YES
Start the operation with
cooling mode [L (Low)].
NO
Does the fan rotate?
YES
Replace indoor main P.C. board
(MCC-1370A).
NO
NO
Is DC280V or more voltage applied
+
–
between 1
and 3
of the
motor connector (CN210)?
YES
(Connection status of motor)
Is DC15V or more voltage applied
+
–
between 4
and 3
of the
motor connector (CN210)?
YES
Stop the operation and turn off the breaker.
After removing motor connector,
turn on the breaker again and then stop
the operation from remote controller.
Change the cooling
mode to [H (High)].
NO
Is DC15V voltage applied
Replace indoor main P.C. board
(MCC-1370A).
+
–
between 4
and 3
of the
motor connector (CN210)?
YES
Is DC1V or more voltage applied
+
–
between 5
and 3
of the
NO
motor connector (CN210) when changing
the operation mode (except HEAT)?
(Check within approx. 15 seconds
after operation has started.)
YES
Stop the operation and disconnect the
receptacle. After removing motor connector,
connect receptacle again and then stop
the operation from remote controller.
NO
Is fan speed raised?
YES
Is DC1V or more voltage applied
+
between 5
and 3 – of the
YES
motor connector (CN210) when changing
the operation mode (except HEAT)?
(Check within approx. 15 seconds
after operation has started.)
Replace indoor fan motor.
Normal fan motor
NO
NO
Does the cross flow fan rotate normally
when handled with hands?
YES
Does 0 to 5V voltage
(revolutions return signal) generate
Replace indoor main P.C. board
(MCC-1370A).
NO
+
–
between 6
and 3
of the
motor connector (CN210) when rotating
the cross flow fan with hands under
condition of operation-stop?
YES
Repair bering of the cross flow fan
.
Replace indoor fan motor.
– 126 –
[11 error]
Indoor fan starts rotating by inserting receptacle.
P.C. board
CN210
[Check output voltage (DC) of P.C. board fan motor.]
6 (Blue)
5 (Yellow)
4 (White)
3 (Black)
Yellow
Black
Measure the voltages of the motor connector
CN210 Pin 3 (GND (minus): Black) and Pin 5 (V line (plus): Yellow)
under condition that indoor fan rotates.
2
–
1 (Red)
DC1.0V or more
DC1.0V or less
DC
Defective
indoor main P.C. board
(MCC-1370A)
Defective indoor fan motor
[12 error]
NO
Check power voltage. Improve line.
Check and eliminate noise, etc.
Is there no turbulence of power supply?
YES
Check indoor main P.C. board (MCC-1370A).
Defect
Replace
– 127 –
[14 error]
NO
NO
Improve the power supply line.
Is power voltage normal?
YES
Check and correct circuit cables.
Correct connection of connector.
Check and correct reactor connection.
Are connections of
cabling/connector normal?
YES
* For RAV-SM560AT-E,
check RY01 on the control P.C. board.
Is not “14” errors output
YES
NO
Does RY01 relay of
IPDU operate?
when an operation is performed by
removing 3P connector of compressor?
NO
YES
* Single-phase type is not
provided to RAV-SM560AT-E.
Replace IPDU.
YES
Is not AC fuse fused?
NO
* Replace control P.C. board
of RAV-SM560AT-E.
Replace IPDU.
NO
Is compressor normal?
YES
* Replace control P.C. board
of RAV-SM560AT-E.
Check IPDU.
Defect Replace
Check rare short of compressor trouble.
Defect Replace
[16 error]
NO
NO
Check and correct circuit cabling
such as cabling to compressor.
Are connections of
cable/connector normal?
YES
Is compressor normal?
YES
YES
Compressor error
Compressor error
Compressor error
Replace
Replace
Replace
Is not earthed?
NO
YES
Is not winding shorted?
(Is resistance between windings 0.6 to 1.2 ?)
NO
YES
Is not winding opened?
NO
Check IPDU P.C. board.
Defect
Replace
– 128 –
[18 error]
Are connections of
TE/TS sensor connectors of
CDB CN604/CN605 normal?
NO
Correct connection of connector.
YES
* (For RAV-SM560AT-E, CN600 TE sensor and CN603 TS sensor)
NO
Are characteristics of TE/TS sensor
resistance values normal?
Replace TE and TS sensors.
* Refer to Characteristics-3.
YES
Check CDB.
* For RAV-SM560AT-E, replace the control P.C. board
Defect
Replace
[19 error]
NO
Is connection of TD sensor connector
of CDB CN600 normal?
Correct connection of connector.
YES
* For RAV-SM560AT-E, CN601 on control P.C. board
NO
Are characteristics of TD sensor
resistance value normal?
Replace TD sensor.
YES
Check control P.C. board.
* Refer to Characteristics-4.
Defect
Replace
[1C error] * Except RAV-SM560AT-E
Are connections of
CDB CN800 and CDB IPDU CN06
connectors normal?
NO
Correct connection of connector.
YES
YES
NO
Check cabling between IPDU
and CDB and connector.
Was the error just after
power ON determined?
Are cabling/connector normal?
YES
NO
IPDU P.C. board error
Defect
Replace
YES
NO
Improve and eliminate the cause.
Is there no abnormal overload?
NO
Is IPDU P.C. board come to
closely contact with heat sink?
Correct mounting.
YES
IPDU P.C. board error
Defect
Replace
– 129 –
[1d error]
NO
NO
NO
Improve power line.
Is power voltage normal?
YES
Check and correct circuit cabling such
as cabling to compressor
(phase missing) and connector.
Are connections of
cable/connector normal?
YES
NO
NO
Is there no
Compressor lock
Replace
Is compressor normal?
YES
slackened refrigerant?
YES
Check TE and TS sensors. Replace
Check electron expansion valve. Replace
Does electron expansion
valve normally operate?
YES
Check IPDU and CDB.
* For RAV-SM560AT-E, check control P.C. board.
Defect
Replace
Defect
Replace
[1E error]
NO
NO
Correct the cabling and
connection of connector.
Is protective control such as
discharge temprelease control normal?
Are connections of
cable/connector normal?
YES
YES
Check parts. Defect
Replace
NO
Check and correct the charged
refrigerant amount.
Is charged refrigerant amount normal?
YES
YES
Improve and delete the cause
Is not abnormal overload?
NO
NO
Are characteristics of
Replace TD sensor.
Check CDB.
TD sensor resistance value normal?
* Refer to Characteristics-4.
YES
Defect
Replace
* For RAV-SM560AT-E, check control P.C. board.
[1F error]
NO
Improve power line.
Is power voltage normal?
YES
YES
Improve and delete the cause.
Is not abnormal overload?
NO
NO
Is the circuit detected by
current sensor normal?
Check and correct circuit cables.
Check IPDU.
YES
Defect
Replace
* For RAV-SM560AT-E, check control P.C. board.
– 130 –
[21 error] [
] LCD flash
Is high-voltage
protective operation by
TE sensor normal?
NO
YES
NO
Correct connection of
cabling connector.
Is connection of cabling
connector normal?
YES
Check TE sensor.
Defect
Replace
NO
Does cooling outdoor fan
normally operate?
YES
NO
NO
Correct connection of
connector.
Is connection of
connector normal?
YES
Replace fan motor.
Is fan motor normal?
YES
NO
Does electron control
valve normally operate?
YES
YES
NO
Do not TD and TO sensors
come off the detection part?
Correct coming-off.
NO
Check TE, TC, TS sensors.
Replace electron expansion valve.
Are characteristics of
TD, TO, TC sensor resistance
values normal?
Replace TD, TO,
and TC sensors.
YES
* Refer to Characteristics-3 and 4.
Check charged refrigerant amount.
Check liquid/gas valves.
Check abnormal overload.
Check CDB.
Defect Replace
* For RAV-SM560AT-E, check control P.C. board.
– 131 –
14-5. Simple Check Method for Main Parts
14-5-1. Indoor unit
No.
Part name
Check procedure
1
Temperature sensor (Ta)
Heat exchanger sensor (Tc) (Normal temperature)
Heat exchanger sensor (Tcj)
Measure the resistance value with tester by removing the connector.
Normal value
10 kΩ to 20 kΩ
Refer to Characteristics table.
2
Louver motor
MP35EA12
Measure the resistance value of each winding coil with tester.
(Under normal temperature 25°C)
Position
Resistance value
1
2
3
4
5
6
1
2
3
4
5
6
Brown
Red
Orange
Yellow
Pink
Between 1 and 2
Between 1 and 3
Between 1 and 4
Between 1 and 5
130 40Ω
Blue
3
Indoor fan motor
(ICF-340-30-1)
lMeasure the resistance value of each winding coil with tester.
lFor P.C. board side, proceed to [11 error] of “Troubleshooting procedure for each
check code”.
Position
Resistance value
∞ (MΩ)
27 to 47 kΩ
140 to 280 kΩ
∞ (MΩ)
Between
Between
Between
Between
(Black) and
(Black) and
(Black) and
(Black) and
(Red)
ƒ
ƒ
ƒ
ƒ
„
ꢀ
†
(White)
(Yellow)
(Blue)
1
1
1
1
2
3
4
5
6
Red
3
4
5
6
3
4
5
6
3
4
5
6
Black
White
Yellow
Blue
– 132 –
Relational graph of temperature sensor resistance value and temperature
20
40
30
TA sensor
TC,TCJ sensor
Caracteristics-2
Caracteristics-1
Resistance
(k )
Resistance
(k )
20
10
10
0
0
10 20 30
40 50
–
10
0
10 20
30 40 50 60 70
Temperature [ C]
Temperature [ C]
TE, TO, TS sensor
20
200
Caracteristics-3
Resistance
Resistance
(k )
(k )
(10 C or higher)
10
(10 C or lower)
100
0
0
-10
0
10 20 30
40 50 60 70
Temperature [ C]
TD sensor
20
200
Caracteristics-4
Resistance
Resistance
(k )
(50 C or lower)
(k )
(50 C or higher)
10
100
0
0
50
100
Temperature [ C]
– 133 –
Resistance
(K )
(10 C or higher)
Resistance
(K )
200
20
15
10
5
TH sensor
Caracteristics-5
150
100
50
–30
–20
–10
0
10
20
30
40
50
60
70
80
90
100
Temperature [ºC]
– 134 –
15. DETACHMENTS
15-1. Indoor Unit
RAV-SM560UT-E, SM800UT-E
No.
Part name
Procedure
Remarks
Suction grille
REQUIREMENT
Never forget to put on the gloves at
disassembling work, otherwise an injury
will be caused.
Knob of suction grille
1. Detachment
1) Stop operation of the air conditioner,
and then turn off switch of the breaker.
2) Hang down the suction grille while
sliding two knobs of the suction grille
inward.
3) Remove a strap connecting the panel
and the suction grille to remove the
suction grille.
Remove the strap.
2. Attachment
1) Hang the suction grille to the panel.
2) Attach the strap of the suction grille to
the panel as before.
3) Close the suction grille, slide the knobs
outward, and then fix it.
‚ Electric parts
1. Detachment
cover
1) Perform work of item 1. of .
2) Remove screws fixing the electric parts
cover. (Ø4 x 10, 3 pcs.)
3) Remove the electric parts cover from
the tentative hook, and then open the
cover.
3 screws
2. Attachment
1) Close the electric parts cover and hang
the cover hole to the tentative hook.
2) Tighten the fixing screws.
(Ø4 x 10, 3 pcs.)
Tentative hook
– 135 –
No.
Part name
Procedure
Remarks
ƒ Adjust corner
1. Detachment
cap
1) Perform work of item 1. of .
2) Remove screws at 4 corners of the
suction port. (Ø4 x 10, 4 pcs.)
3) Push the knob outward and remove the
adjust corner cap by sliding it.
Screw
2. Attachment
1) Mount the adjust corner cap by sliding
it inward.
2) Tighten screws at 4 corners of the
suction port. (Ø4 x 10, 4 pcs.)
Push outward
„ Ceiling panel
1. Detachment
1) Perform works of items 1 of , 1 of ‚
and 1 of ƒ.
2) Remove the flap connector (CN33,
White, 5P) connected to the control P.C.
board, and then remove the lead wire
from the clamp.
Remove the flap
connector
NOTE :
Remove the connector by releasing
locking of the housing.
3) Remove screws fixing the ceiling panel.
(M5, 4 pcs.)
Fixing screw
4) Push the tentative hook outward to
remove the ceiling panel.
2. Attachment
1) Hang the tentative hook of the main
body drain pan to the tentative hook of
the ceiling panel.
NOTE :
A panel has directional property, so mount
a panel with attention to the marks.
Push the tentative
hook outward
2) Tighten fixing screws. (M5, 4 pcs.)
3) Connect flap connector of the ceiling
panel to connector (CN33, White, 5P)
on the control P.C. board.
– 136 –
No.
Part name
Procedure
Remarks
ꢀ Control P.C.
1. Detachment
board
1) Perform works of items 1 of and 1 of
‚.
2) Remove connectors which are con-
nected from the control P.C. board to
other parts.
CN33 : Flap motor (5P: White)
CN34 : Float switch (3P: Red)
Card-edge spacer
CN41 : Terminal block of remote
controller (3P: Blue)
CN68 : Drain pump (3P: Blue)
CN67 : Terminal block of power supply
(5P: Black)
CN101 : TC sensor (2P: Black)
CN102 :TCJ sensor (2P: Red)
CN104 : Room temperature sensor
(2P:Yellow)
CN333 : Power supply of fan motor
(5P: White)
CN334 : Position detection of fan motor
(5P: White)
NOTE :
Remove the connector by releasing
locking of the housing.
3) Unlock locking of the card-edge spacer
at 6 positions to remove the control P.C.
board.
2. Attachment
1) Fix the control P.C. board to the card-
edge spacer at 6 positions.
2) Connect the connectors removed in
item 1 to the original positions.
– 137 –
No. Part name
Procedure
Remarks
† Fan motor
1. Detachment
1) Perform works of items 1 of and 1 of
Screws fixing electric parts box
‚.
2) Remove clamps of the lead wires con-
nected to the following connectors of the
control P.C. board.
CN33 : Flap motor (5P: White)
CN34 : Float switch (3P: Red)
CN68 : Drain pump (3P: Blue)
CN101 : TC sensor (2P: Black)
CN102 : TCJ sensor (2P: Red)
Screws fixing earth lead wires
Bell mouth
CN333 : Power supply of fan motor
(5P: White)
CN334 : Position detection of fan motor
(5P: White)
NOTE :
Remove the connector by releasing locking
of the housing.
3) Remove screws fixing earth lead wire in
the electric parts box. (Ø4 x 6, 2 pcs.)
4) Remove indoor/outdoor inter-unit cable
and remote controller cable of the termi-
nal block.
Turbo fan
5) Remove screws fixing the electric parts
box. (Ø4 x 10, 5 pcs.)
6) Remove screws fixing the bell mouth.
(Ø4 x 10, 6 pcs.)
7) Remove nuts fixing the turbo fan.
(M6, 1 pc.)
8) Remove screws fixing holder of the motor
lead wires to remove the motor lead wires
from the clamp. (Ø4 x 8, 3 pcs.)
9) Remove nuts fixing the fan motor to
remove it.
Motor lead holder
2. Attachment
1) Fix the parts, fan motor, holder of the
motor lead, turbo fan, bell mouth, and
electric parts box successively to their
original positions.
NOTE 1 :
When fixing the turbo fan, be sure to match
the fan boss with D-cut of the motor shaft.
Fan motor
NOTE 2 :
Fix the turbo fan with torque wrench
5.9 0.6Nm.
2) Connect connectors, earth lead wire,
indoor/outdoor inter-unit cable, and
remote controller cable which have been
disconnected in the above item 1 as
before.
– 138 –
No. Part name
Procedure
Remarks
‡ Drain pan
1. Detachment
1) Perform works of items 1 of , 1 of ‚, 1
of ƒ and 1 of „.
2) Remove clamps of the lead wires con-
nected to the following connectors of the
control P.C. board.
CN34 : Float switch (3P: Red)
CN68 : Drain pump (3P: Blue)
CN101 : TC sensor (2P: Black)
CN102 : TCJ sensor (2P: Red)
CN333 : Power supply of fan motor
(5P:White)
Screws fixing earth lead wires
Drain cap
CN334 : Position detection of fan motor
(5P:White)
NOTE :
Remove the connector by releasing locking
of the housing.
3) Remove screws fixing earth lead wire in
the electric parts box. (Ø4 x 6, 2 pcs.)
4) Remove indoor/outdoor inter-unit cable
and remote controller cable of the termi-
nal block.
5) Remove screws fixing the electric parts
box. (Ø4 x 10, 5 pcs.)
6) Remove screws fixing the bell mouth.
(Ø4 x 10, 6 pcs.)
Screws fixing drain pan
7) Remove the drain cap, and drain water
accumulated in the drain pan.
NOTE 1 :
When removing the drain cap, be sure to
prepare a bucket to catch the drained water.
NOTE 2 :
Thermal insulator is adhered to the drain
cap. Be careful not to peel off the insulator.
If the insulator has been peeled, adhere it
with double-face tape, etc. as before.
8) Remove screws fixing the drain pan.
(Ø4 x 8, 4 pcs.)
2. Attachment
1) Fix the parts, drain cap, drain pan, bell
mouth, and electric parts box succes-
sively to their original positions.
2) Connect connectors, earth lead wire,
indoor/outdoor inter-unit cable, and
remote controller cable which have been
disconnected in the above item 1 as
before.
– 139 –
No.
Part name
Procedure
Remarks
ˆ Drain pump
1. Detachment
assembly
1) Perform works of items 1 of , 1 of ‚,
Slide to hose side.
1 of ƒ, 1 of „ and 1 of ‡.
2) Picking the hose band, slide it from
pump connecting part to remove the
drain hose.
3) Remove screw fixing the drain pump
assembly, slide hooking claws of the
drain pump assembly and the main
body (1 position), and then remove the
assembly. (Ø4 x 8, 3 pcs.)
Hose band
3. Attachment
1) Fix the drain pump assembly as before.
Pump connecting part
NOTE :
The drain pump is fixed with a hook and 3
screws. In screwing, be sure that screws
do not to run on hooking claw at the main
body side.
2) Attach the drain hose and hose band
as before.
Hooking claw
NOTE :
Insert the drain hose up to the end of
pump connecting part, and bind the white
mark position of the hose with band.
Fixing screw
– 140 –
No.
Part name
Procedure
Remarks
‰ Heat exchanger 1. Detachment
1) Recover refrigerant gas.
2) Remove refrigerant pipe at the indoor
unit side.
3) Perform works of items 1 of , 1 of ‚,
Fixing screws
1 of ƒ, 1 of „ and 1 of ‡.
4) Remove screws fixing the pipe cover.
(Ø4 x 8, 2 pcs.)
5) Remove the heat exchanger by
removing fixing band and fixing screws
while holding the heat exchanger.
(Ø4 x 8, 3 pcs.)
2. Attachment
Fixing band
1) Fix the parts, heat exchanger, fixing
band, pipe cover, drain cap, drain pan,
bell mouth, and electric parts box
successively to their original positions.
2) Connect connectors, earth lead wire,
indoor/outdoor inter-unit cable, and
remote controller cable which have
been disconnected in the above item 1
as before.
3) Connect the refrigerant pipe as before,
and then perform vacuuming.
Fixing screws
– 141 –
15-2. Replacement of Distributor Assembly
RAV-SM560UT-E
1. Cutting of CapillaryTube
A capillary tube ( 023 : Inner diameter 2mm, Length 1000mm) is brazed to a distributor assembly. Cut and
divide the tube to each length as shown below.
Ref No.
No. of capillary tubes
Cutting
200 mm : 2 pcs.
400 mm : 2 pcs.
023
4
[Cutting]
Plane circumference of the capillary tube with
triangle file, etc., and then break off it.
NOTE) Break off the capillary tube so
that inner diameter is not deformed
2. Attachment of joint pipe
Insert the attached joint pipe into the end of the
capillary tube up to 15mm, and braze it.
Form the capillary tube as same as that in the
distributor assembly before replacement.
3. Brazing to indoor heat exchanger
Attach the capillary tube processed in items 1 and 2 to the end of the pipe with brazing as shown below.
023
– 142 –
RAV-SM800UT-E
1. Cutting of CapillaryTube
A capillary tube ( 025 026 : Inner diameter 2mm, Length 1000mm) is brazed to a distributor assembly.
Cut and divide the tube to each length as shown below.
Ref No.
No. of capillary tubes
Cutting
600 mm : 2 pcs.
100 mm : 1 pc.
300 mm : 1 pc.
400 mm : 1 pc.
025
7
700 mm : 1 pc.
800 mm : 1 pc.
100 mm : 2 pcs.
150 mm : 1 pc.
500 mm : 4 pcs.
600 mm : 2 pcs.
900 mm : 1 pc.
026
10
[Cutting]
Plane circumference of the capillary tube with
triangle file, etc., and then break off it.
NOTE) Break off the capillary tube so
2. Attachment of joint pipe
that inner diameter is not deformed
Insert the attached joint pipe into the end of the
capillary tube up to 15mm, and braze it.
Form the capillary tube as same as that in the
distributor assembly before replacement.
3. Brazing to indoor heat exchanger
Attach the capillary tube processed in items 1 and 2 to the end of the pipe with brazing as shown below.
025
026
– 143 –
15-3. Replacement of Main Parts <Built-in type>
RAV-SM560BT-E, SM800BT-E
Be sure to turn off the power supply before disassembling work.
No.
Item
Procedure
1
Electric parts box 1) Remove the electric parts box.
(Supplement: Refer to How to remove
the electric parts box.)
Electric parts
fixing screw
In this time, remove connectors of TA
sensor, TC sensor, and TCJ sensor, if
necessary.)
2
Fan
1) Remove connector of the fan motor.
2) Remove screws fixing the fan. (Screws
at 4 positions)
3) Take off jointed portion of fan and
cabinet, and then put down the fan.
4) Loosen set screw of the Silocco fan.
5) Remove set screw of the fan case.
6) Remove the fan motor mounting metal,
and then replace the fan motor.
Fan fixing
screw
Electric parts
box
Fan
3
Drain pan
1) Take down the indoor unit and then
treat the drain pan on the floor.
Drain pan
2) Remove screws fixing the drain pan (12
positions) and then replace the drain
pan.
4
Heat exchanger
1) Take down the indoor unit and then
treat the heat exchanger on the floor.
2) Remove screws fixing the drain pan (12
positions) and then remove the drain
pan.
Shielding plate
Heat exchanger
3) Remove the shielding plate. (Screws at
4 positions)
4) Remove screws (at 4 positions) fixing
the heat exchanger, and then replace
the heat exchanger.
5
TC sensor
(Sensor side)
1) Remove the check port cover.
2) Remove the shielding plate.
(At 4 positions)
Shielding plate
3) Pull out the sensors inserted into pipe
of the heat exchanger.
Check port cover
– 144 –
AID-P710BH, P800BH, P1120BH
Be sure to turn off the power supply before disassembling work.
No.
Item
Procedure
1
Electric parts box 1) Remove the electric parts box.
(Supplement: Refer to How to remove
the electric parts box.)
In this time, remove connectors of TA
sensor, TC sensor, and TCJ sensor, if
necessary.)
Electric parts
fixing screw
Electric
parts box
2
Fan
1) Remove connector of the fan motor.
2) Using a hexagonal wrench, loosen
coupling fixing screws at 2 positions,
and then slide the fan motor to reverse
side.
Capacitor
Fan case (left)
3) Remove set screws (6 positions) of the
fan case (left).
4) Remove fan motor mounting metal
(screws at 2 positions) while holding
the fan motor with hands.
Silocco
fan (right)
5) Remove capacitor fixing screw
(1 position).
Fan motor
6) Take down the fan motor and the fan
case (left).
7) Loosen set screw of the Silocco fan.
8) Replace the fan motor.
3
4
Drain pan
1) Take down the indoor unit and then
treat the drain pan on the floor.
2) Remove screws fixing the drain pan
and then replace the drain pan.
Drain pan
Heat exchanger
1) Take down the indoor unit and then
treat the heat exchanger on the floor.
Shielding plate
Heat exchanger
2) Remove screws fixing the drain pan
and then remove the drain pan.
3) Remove the shielding plate. (Screws at
4 positions)
4) Remove screws (at 5 positions) fixing
the heat exchanger, and then replace
the heat exchanger.
5
TC sensor
(Sensor side)
1) Remove the check port cover.
2) Remove the shielding plate.
(At 4 positions)
Shielding plate
3) Pull out the sensors inserted into pipe
of the heat exchanger.
Check port
cover
– 145 –
[SUPPLEMENT] How to remove the electric parts box
Electric parts box
The electric parts box is fixed to the indoor unit with claws at the rear side.
Lift up it once and pull toward you. Then claws come off.
Hook
Procedure 2
Remove these two screws to
remove the electric parts box.
Electric cable
Remote controller cable
Electric parts box cover
A hole at the ceiling surface side is fixed to
upper part of the electric parts box with claws.
Lift up it once and pull toward you.
Then claws come off.
Procedure 1
Remove these two screws to remove the electric parts box cover.
– 146 –
15-4. Replacements of Main Parts <Hi-Wall type>
15-4-1. Indoor Unit
No.
Part name
Procedure
Remarks
Front panel
1) Stop operation of the air conditioner, and turn off
the power supply.
2) Push “PUSH” part at the lower side of the front
panel, and then take off claws of the front panel
from the installation board.
Installation board
Front panel
3) Open the suction grille and take off the front
panel fixing screws (4 pcs.).
4) After turning the side grille as shown in the right
figure, perform the following works.
5) Push the electric parts box with right thumb while
pulling both sides of the front panel toward you.
<Attachment of front panel>
1) Turn the side grille as shown in the right figure.
2) Push 3 positions at center of the discharge port
and 2 positions at lower center of the discharge
port, and then hook the hooking claws (3 posi-
tions) at upper surface of the front panel to the
rear board.
Side grille
3) Tighten 4 screws.
• Insufficient hooking or pushing may cause
falling of dewdrop or discomforting noise.
When removing the front panel without turning
the side grille, the front panel may be broken.
Upper hooking claws
(3 positions)
Fixing
screws
Fixing
screws
‚ Electric parts
1) Perform work of item 1 of .
box assembly
2) Remove the drain guide.
3) Take off screws for earth lead wire attached to
the end plate of the heat exchanger.
4) Disconnect connectors for fan motor and louver
motor from the microcomputer assembly.
5) Remove the display unit at the center of the set
from the main body.
Screw
Drain guide
– 147 –
No.
Part name
Procedure
Remarks
‚ Electric parts
6) Take off fixing screw (1 position) of the electric
parts base, and then pull out the electric parts
base toward you.
Tjc sensor position
(Tube is attached to Tcj sensor.)
box assembly
7) Pull out Tc sensor and Tcj sensor from sensor
holder of the heat exchanger. After replacement
of the parts, incorporate two sensors without
mistake as shown in the right figure.
TC sensor
position
(Tube is attached to Tcj sensor.)
8) After replacement of the parts, set a trap so that
water does not enter in the electric parts assem-
bly. (Incomplete process for lead wires may
cause water leak.)
ƒ Side grille
1) Remove shaft of the side grille from the air
conditioner body. (First remove the left shaft and
then other shafts while sliding the side grille left
and right.)
„ Heat exchanger 1) Perform work of item ‚.
2) Remove pipe holder at rear side of the main
body.
3) Take off fixing screws (2 pcs.) at the left side of
the end plate of the heat exchanger.
Pipe
holder
Fixing screw
Fixing
screw
4) Take off two fixing screws of the heat exchanger
holder (right), and then remove the heat ex-
changer holder (right).
5) Take off fixing screw at lower right side of the
heat exchanger.
6) Remove the heat exchanger from the rear main
body by lifting it upward.
Fixing
screw
– 148 –
No. Part name
Procedure
1) Perform work of item .
Remarks
ꢀ Fan motor
2) Perform work of item ƒ.
3) Loosen set screw of the cross flow fan from the
discharge port.
4) Remove the bushing (right).
Bushing (right)
Set screw
Push this
part upward
Cross fan
Fixing screws
5) Take off two fixing screws of the motor band (right).
6) Pull out the motor band (right) and the fan motor
outward.
* Caution at reassembly
• Determine position of the fan motor so that connec-
tor of the fan motor enters in the positioning rib of
the motor band (right).
† Cross flow
1) Perform works of items and ƒ.
fan
2) Loosen set screw of the cross flow fan from the
discharge port.
3) Take off two fixing screws at the left side of the end
plate of the heat exchanger, and then take off two
fixing screws of the bearing base.
Fixing screw
4) Lift up slightly the left side of the heat exchanger to
remove the bearing base.
5) Lift up the left side of the heat exchanger toward
you to remove the cross flow fan.
* Caution at reassembly
• Mount the cross flow fan so that the left end of the
first joint from right of the drift fan matches with the
left end of the positioning rib of the rear main body.
Positioning rib
– 149 –
15-4.2. Replacement Procedure of Service Main P.C. Board
Replacement Procedure of Indoor Control P.C. Board
(AIK-PXXXH series, SIK-PXXXH series)
For this indoor control P.C. board [AIK/SIK-P SERVICE] corresponding to the common P.C. boards, follow to this
replacement procedure when replacing P.C. board.
(When using SIK-PXXXH series, P.C. board name, parts layout, etc. of the presently mounted P.C. board differ
from those of this service P.C. board. However there is no problem in the functions.)
Components
• Service P.C. board (MCC-1370A [AIK/SIK-P SERVICE] : 1 unit
• Replacement Procedure of Indoor Control P.C. Board
:These sheets
• Replacement Record of remote controller/indoor control P.C. board/outdoor control P.C. board : 1 sheet
Replacement Procedure
1
2
Remove the presently mounted P.C. board from the electric parts box.
(Be sure to send back the replaced P.C. board with Replacement Record attached separately.)
Set Dip SW and jumpers of the service P.C. board according to the following exchange correspon-
dence table.
Model
<Reference>
AIK-PXXXH series
AIK-P630H
AIK-P400H
AIK-P450H
AIK-P500H
AIK-P560H
AIK-P710H
AIK-P800H
Service P.C. board
Initial setup
at shipment
Part
SW03
1
2
ON
OFF
〇
〇
〇
〇
〇
〇
〇
〇
〇
×
〇
〇
〇
×
〇
〇
〇
〇
Match setup with one of former P.C. board.
J01
J07
J09
J11
J12
J14
J15
J16
J17
J19
J22
J24
J25
J36
J50
J53
J54
J55
As it is : 〇
Match setup with one of former P.C. board.
As it is : 〇
As it is : 〇
As it is : 〇
As it is : 〇
As it is : ×
As it is : 〇
Cut : ×
As it is : 〇
Cut : ×
Cut : ×
As it is : 〇
As it is : 〇
As it is : 〇
As it is : 〇
As it is : ×
As it is : 〇
As it is : Setup of jumper of the service P.C. board is not changed.
3
Mount P.C. board according to [Mounting].
– 150 –
[Mounting]
In case of AIK-PXXXH series
1. As same as P.C. board before replacement, attach a cable (Black) which is screwed to the electric parts
box to CN240 without using a cable (Black) attached previously to CN240 of the service P.C. board.
CN204
Cable
(Remove a cable
attached previously
to CN240 of the
service P.C. board.)
Service P.C. board
2. Attach other cables as same as P.C. board before replacement.
<(Reference) Explanation about functions of switches/jumpers>
• The following table shows the functions of the main switches and jumpers. Use as reference in miss-setup.
Part name
Function
TA shift: Thermo-OFF point can be shifted in heating operation.
Bit 1
OFF
OFF
ON
Bit 2
OFF
ON
Shift Q’ty
+ 6K
+ 4K
1
SW03
2
OFF
ON
+ 2K (Setup at shipment)
0K
ON
Selection of hot start control temperature :
The starting temperature of the fan can be raised in heating operation.
J09
Provided
None
Setup
Normal (Setup at shipment)
Fan starting temp up (Approx. +4K)
J09
Setup of filter timer
J11
J12
Setup
240 hours (Setup at shipment)
2500 hours
Provided
None
Provided
Provided
None
J11
J12
Provided
None
5000 hours
None
Without filter timer
– 151 –
<Parts layout of service P.C. board>
CN213 display part
CN04 temp. sensor
CN05 heat exchanger
CN240
Label
Jumper
SW03: TA shift
CN230
P.C. board (MCC-1370A)
CN223
Jumper
CN231
– 152 –
15-5. Outdoor Unit
RAV-SM560AT-E
No.
Part name
Procedure
CAUTION
Remarks
Common
procedure
Valve
cover
Never forget to put on the gloves at
working time, otherwise an injury will be
caused by the parts, etc.
1. Detachment
1) Stop operation of the air conditioner, and
turn off the main switch of the breaker for
air conditioner.
2) Remove the valve cover.
(ST1T Ø4 x 10L, 1 pc.)
• After removing screw, remove the valve
cover pulling it downward.
Wiring
cover
3) Remove wiring cover (ST1T Ø4 x 10L, 2
pcs.), and then remove connecting cable.
4) Remove the upper cabinet.
(ST1T Ø4 x 10L, 2 pcs.)
• After taking off screws, remove the
upper cabinet pulling it upward.
Upper cabinet
2. Attachment
1) Attach the waterproof cover.
CAUTION
Be sure to attach a waterproof cover.
If it is not attached, there is a possibility
that water enters inside of the outdoor unit.
Water-proof
cover
Cord clamp
2) Attach the upper cabinet.
(ST1T Ø4 x 10L, 2 pcs.)
• Hook the rear side of the upper cabinet
to claw of the rear cabinet, and then put
it on the front cabinet.
Rear cabinet
3) Perform cabling of connecting cables, and
fix with cord clamp.
(ST1T Ø4 x 10L 3 pcs.)
4) Attach the wiring cover.
(ST1T Ø4 x 10L, 2 pcs.)
Claw
5) Attach the valve cover.
(ST1T Ø4 x 10L, 1 pc.)
• Insert the upper part of the upper
cabinet, set hooking claw of the valve
cover to the slit (at three positions) of the
main body, and then attach it pushing
upward.
– 153 –
No.
Part name
Procedure
Remarks
‚ Front cabinet
1. Detachment
1) Perform work of item 1 of .
Motor support
2) Remove screws (ST1T Ø4 x 10L, 2 pcs.)
of the front cabinet and the inverter cover.
3) Take off screws of the front cabinet and
the bottom plate. (ST1T Ø4 x 10L 3 pcs.)
4) Take off screws of the front cabinet and
the motor support.
(ST1T Ø4 x 10L, 2 pcs.)
• The left side of the front side if made to
insert to the rear cabinet, so remove it
pulling upward.
For single-phase type models,
also take off this screw
Front cabinet
Front cabinet (Left side)
3. Attachment
1) Insert hook at the left side of the front side
into the rear cabinet.
2) Hook the lower part at the right side of the
front to concavity of the bottom plate.
Insert the hook of the rear cabinet into the
slit of the front cabinet.
Slit
Claw
3) Attach the removed screws to the original
positions.
Slit
Hook
Cord clamp
Front cabinet
Concavity at
bottom plate
Lower
slit
– 154 –
No.
Part name
Procedure
Remarks
ƒ Inverter
1. Detachment
1) Perform work of item 1 of .
Screws
assembly
2) Take off screws of the upper part of the
front cabinet.
• If removing the inverter cover under this
condition, P.C. board can be checked.
Front cabinet
• If there is no space in the upper part of
the upper cabinet, perform work of ‚.
Inverter cover
CAUTION
Be careful to check the inverter because
high-voltage circuit is incorporated in it.
3) Perform discharging by connecting + , –
polarities by discharging resistance
(approx. 100Ω, 40W) or plug of soldering
iron to + , – terminals of the C14
(printed as “CAUTION HIGH VOLTAGE”)
electrolytic capacitor (500µF) of P.C.
board.
Cord clamp
WARNING
The electrolytic capacitor may not nor-
mally discharge according to error con-
tents and the voltage may remain.There-
fore, be sure to discharge the capacitor.
Screws
WARNING
Plug of
soldering iron
For discharging, never use a screwdriver
and others for short-circuiting between +
and – electrodes. As the electrolytic
capacitor is one with a large capacity, it is
very dangerous because a large electric
spark will occur.
Discharging
position
(Discharging
period
10 seconds
or more)
4) Take off screws (ST1T Ø4 x 10L, 2 pcs.)
fixing the main body and the inverter box.
Inverter
assembly
5) Remove various lead wires from the
holder at upper part of the inverter box
and wiring holder at right side of the
terminal block.
6) Remove the lead wire from the bundled
part at left side of the terminal block.
7) Pull the inverter box upward.
8) Disconnect connectors of various lead
wires.
REQUIREMENT
Remove the connectors
with locking function by
pushing the part indicated
by the arrow mark.
As each connector has a lock mechanism,
avoid to remove the connector by holding
the lead wire, but by holding the connector.
– 155 –
No.
Part name
Procedure
Remarks
„ Control P.C.
1) Disconnect lead wires and connectors
connected from the control P.C. board
assembly to other parts.
board assembly
Take off
earth screws.
1. Lead wires
• Connection with the power terminal
block: 3 wires (Black, White, Orange)
• Earth wire: 1 wire (Black)
2. Connectors
Power line
• Connection with compressor:
Remove 3P connector.
Inverter box
(Metal sheet)
• Connection with reactor:
Remove the relay connectors from
P07, 08 (2P, White) and P12, 13 (2P,
Yellow)
Control P.C.
board assembly
P.C. board base
CN300 : Outdoor fan (3P, White)
CN301 : Position detection (5P, White)
CN701 : 4-way valve (3P, Yellow)
CN600 :TE sensor (2P, White)
CN601 :TD sensor (3P, White)
CN603 :TS sensor (3P, White)
CN602 :TO sensor (3P, White)
CN500 : Case thermo. (2P, White)
CN703 : PMV (6P, White)
Hooking claws
(4 positions)
2) Remove the inverter box (Metal plate).
3) Remove the control board assembly from
P.C. board base. (Remove the heat sink
and the control board assembly as they
are screwed.)
Control P.C.
board assembly
NOTES:
1. CN300, CN301 and CN701, etc. at the
control board assembly side are connec-
tors with locking function.Therefore,
remove the connector while pushing the
part indicated by an arrow mark.
P.C. board base
2. Remove 4 hooking claws of P.C. board
base, and remove upward the heat sink
with hands.
4) Take off 3 screws fixing the heat sink and
main control board assembly side, and
replace the board with a new one.
NOTE:
Heat sink
Inverter box
(Metal sheet)
When mounting a new board, check that the
board is correctly set in the groove of the
base holder of P.C. board base. Attach the
P.C. board so that the heat sink comes
securely contact with the metal sheet.
– 156 –
No.
Part name
Procedure
Remarks
ꢀ Rear cabinet
1) Perform works of items 1 of and ‚, ƒ.
2) Take off fixed screws for the bottom plate.
(ST1T Ø4 x 10L, 3 pcs.)
3) Take off fixed screws for the heat ex-
changer. (ST1T Ø4 x 10L, 2 pcs.)
4) Take off fixed screw for the valve mounting
Rear cabinet
plate. (ST1T Ø4 x 10L, 1 pc.)
† Fan motor
1) Perform works of items 1 of and ‚.
2) Take off the flange nut fixing the fan motor
and the propeller.
Flange nut
• Turning it clockwise, the flange nut can
be loosened. (To tighten the flange nut,
turn counterclockwise.)
3) Remove the propeller fan.
4) Disconnect the connector for fan motor
from the inverter.
5) Take off the fixing screws (3 pcs.) holding
by hands so that the fan motor does not
fall.
Loosen the nut by
turning clockwise
NOTE:
Tighten the flange nut with torque 4.9Nm
(50kgf/cm).
Propeller fan
Fan
motor
– 157 –
No.
Part name
Procedure
Remarks
‡ Compressor
1) Perform works of items 1 of and
‚, ƒ, „, ꢀ.
Partition plate
2) Discharge refrigerant gas.
3) Remove the partition plate.
(ST1T Ø4 x 10L, 2 pcs.)
4) Remove the noise-insulator.
5) Remove the terminal covers of the
compressor, and disconnect lead
wires of the compressor and the
compressor thermo assembly from
the terminal.
6) Remove pipes connected to the
compressor with a burner.
Compressor
lead
CAUTION
Pay attention to that flame does not
involve 4-way valve or PMV. (If doing
so, a malfunction may be caused.)
Case thermo
7) Take off the fixing screws of the
bottom plate and heat exchanger.
(ST1T Ø4 x 10L, 2 pcs.)
Heat exchanger
8) Take off the fixing screws of the valve
clamping plate to the bottom plate.
Remove
(Discharge pipe)
9) Pull upward he refrigerating cycle.
10) Take off nut fixing the compressor
to the bottom place.
Remove
(Suction pipe)
Screw
Valve
support board
CAUTION
When reconnecting the lead wires to
the compressor terminals after
replacement of the compressor, be
sure to caulk the Faston terminal
without loosening.
Screws (2 pcs.)
Compressor bolt (3 pcs.)
ˆ Reactor
1) Perform works of item 1 of and ƒ.
Partition
plate
2) First take off two screws (ST1T Ø4 x
10L) of the reactor fixed to the reactor
support.
Reactor
Reactor
support board
3) Remove the reactor support from the
partition plate.
(ST1T Ø4 x 10L, 4 pcs.)
4) Take off two screws (ST1T Ø4 x 10L)
directly attached to the partition plate.
– 158 –
No.
Part name
Procedure
Remarks
‰ Pulse Modulating 1. Detachment
Valve (PMV) coil
1) Perform works of items and ‚.
Positioning extrusion
PMV body
2) Release the coil from the concavity by
turning it, and remove coil from the
PMV.
2. Attachment
1) Put the coil deep into the bottom
position.
2) Fix the coil firmly by turning it to the
concavity.
Concavity
PMV coil
Š Fan guard
1. Detachment
1) Perform works of items 1 of , and ‚.
Minus screwdriver
2) Remove the front cabinet, and put it
down so that fan guard side directs
downward.
CAUTION
Perform works on a corrugated card-
board, cloth, etc. to prevent flaw on the
product.
3) Remove the hooking claws by pushing
with minus screwdriver along with the
arrow mark in the right figure, and
remove the fan guard.
Front cabinet
Hooking claw
Front cabinet
2. Attachment
1) Insert claws of the fan guard in the hole
of the front cabinet. Push the hooking
claws (10 positions) with hands and
then fix the claws.
CAUTION
All the attaching works have completed.
Check that all the hooking claws are
fixed to the specified positions.
Fan guard
– 159 –
RAV-SM800AT-E
No. Part name
Procedure
CAUTION
Remarks
Common
procedure
Never forget to put on the gloves at
working time, otherwise an injury will be
caused by the parts, etc.
Front
cabinet
1. Detachment
1) Stop operation of the air conditioner, and
also turn off switch of the breaker.
2) Remove the front panel.
(ST1T Ø4 x 10L, 3 pcs.)
• After taking off screws, remove the front
panel by pulling it downward.
3) Disconnect the connecting cables and
power cord from the terminals and cord
clamp.
Upper plate
of cabinet
4) Remove the upper cabinet.
(ST1T Ø4 x 10L, 6 pcs.)
2. Attachment
1) Attach the waterproof cover.
Water-proof
cove
CAUTION
Be sure to attach a waterproof cover.
If it is not attached, there is a possibility
that water enters inside of the outdoor unit.
2) Attach the upper cabinet.
(ST1T Ø4 x 10L, 6 pcs.)
3) Connect the connecting cable and power
cord at the terminal and fix them with cord
clamp.
CAUTION
Using bundling band sold at a market, be
sure to fix the power cables and indoor/
outdoor connecting cables along the inter-
unit cable so that they do not come to
contact with the compressor, valves and
cables at gas side, and the discharge pipe.
4) Attach the front cabinet.
(ST1T Ø4 x 10L, 3 pcs.)
– 160 –
No.
Part name
Procedure
Remarks
‚ Discharge port 1. Detachment
cabinet
1) Perform work of item 1 of .
Side cabinet
Inverter
2) Take off screws (ST1T Ø4 x 10L, 3 pcs.) of
discharge port cabinet for the partition
plate.
3) Take off screws (ST1T Ø4 x 10L, 2 pcs.) of
discharge port cabinet for the bottom
plate.
4) Take off screw (ST1T Ø4 x 10L, 1 pc.) of
discharge port cabinet for the heat ex-
changer.
Fin guard
5) Take off screws (ST1T Ø4 x 10L, 2 pcs.) of
discharge port cabinet for the fin guard.
2. Attachment
1) Put the upper left side of the discharge
port cabinet on the end plate of the heat
exchanger, and then fix it with screw.
(ST1T Ø4 x 10L, 1 pc.)
2) Attach the removed screws to the original
positions.
Discharge port
End plate of the
heat exchanger
ƒ Side cabinet
1) Perform work of item 1 of .
2) Remove screw fixing the inverter and the
side cabinet. (ST1T Ø4 x 10, 1 pc.)
3) Remove screws of the side cabinet and
the valve support plate.
(ST1T Ø4 x 10, 2 pcs.)
4) Remove screw of the side cabinet and the
cabling panel (Rear).
(ST1T Ø4 x 10, 1 pc.)
5) Remove screw of the side cabinet and the
bottom plate. (ST1T Ø4 x 10, 1 pc.)
Valve support plate
Inverter
Side cabinet
6) Remove screw of the side cabinet and the
fin guard (Heat exchanger).
(ST1T Ø4 x 10, 2 pcs.)
Side cabinet
Valve support
plate
Cabling panel
(Rear)
– 161 –
No.
Part name
Procedure
Remarks
„ Inverter
1) Perform works of items of 1) to 5) of .
assembly
Screw
2) Take off screw (ST1T Ø4 x 10L, 1 pc.) of
the upper left part of the inverter cover.
Inverter
assembly
• If removing the inverter cover under this
condition, P.C. board can be checked.
• If there is no space in the upper part of
the upper cabinet, perform works of
items 6) to 7) of (1) and remove the
partition fixing plate.
Holder
(ST1T Ø4 x 10L, 1 pc.)
CAUTION
Be careful to check the inverter because
high-voltage circuit is incorporated in it.
Inverter
cover
3) Perform discharging by connecting the
discharging resistance (approx. 100Ω,
40W) or plug of soldering iron to + , –
terminals of the C10 too 13 (printed as
“CAUTION HIGH VOLTAGE”) electrolytic
capacitor (760µF) of P.C. board.
Inverter
assembly
Plug of
soldering iron
WARNING
The electrolytic capacitor may not nor-
mally discharge according to error con-
tents and the voltage may remain.There-
fore, be sure to discharge the capacitor.
Left time:
10 sec. or more
WARNING
Inverter assembly
For discharging, never use a screwdriver
and others for short-circuiting between +
and – electrodes. As the electrolytic
capacitor is one with a large capacity, it is
very dangerous because a large electric
spark will occur.
4) Remove various lead wires from the
holder at upper part of the inverter box.
5) Remove the hook for the partition plate
(lower left side).
6) Remove the hook for the side cabinet
(lower left side) and the screw, and lift up
the inverter assembly upward. (ST1T Ø4 x
10L, 1 pc.) In this time, cut off the band
bundling each lead wire.
Hook for the side
cabinet (lower left side)
Screw
7) Disconnect connectors of various lead
wires.
Remove the connectors
with locking function by
pushing the part indicated
by the arrow mark.
REQUIREMENT
As each connector has a lock mechanism,
avoid to remove the connector by holding
the lead wire, but by holding the connector.
– 162 –
No. Part name
Procedure
Remarks
ꢀ Control P.C.
board
1) Remove the inverter box from P.C. board base.
Inverter box (Metal sheet)
2) Disconnect lead wires and connectors con-
nected from the control P.C. board assembly to
other parts.
assembly
1. Lead wires:
With the power terminal block: 2 pcs.
(Single phase) (Red, White)
With the compressor: 3 pcs.
(Red, White, Black)
P.C. board
base
2. Connectors
CN301 : Outdoor fan (3P, White) *Note 1)
CN300 : Position detection (5P, White)
CN700 : 4-way valve (3P, Yellow) *Note 1)
CN702 : PMV coil (6P, White)
Cycle control
P.C. board
assembly
Inverter
CN600 :TD sensor (3P, White)
control
P.C. board
assembly
CN605 :TS sensor (3P, White) *Note 1)
CN604 :TE sensor (2P, White) *Note 1)
CN601 :TO sensor (2P, White)
CN02 : Indoor/Outdoor connecting
terminal block (2P, Black)
Cycle control
P.C. board
assembly
CN500 : Case thermo (2P, White) *Note 1)
CN14, CN15 : Reactor (3P, Relay
connector, Blue) *Note 1)
*Note 1)
Remove the connector while releasing locking of
the housing.
3) Remove the control P.C. board assembly from
P.C. board base. (Remove the heat sink and
the inverter control P.C. board assembly as
they are screwed.)
Inverter
control
P.C. board
assembly
Note 2)
Remove the heat sink upward by taking off two
claws of P.C. base and holding the heat sink.
Inverter
control
4) Take off three screws fixing the heat sink to the
control P.C. board assembly.
P.C. board
assembly
5) Mount a new control P.C. board assembly.
Note 3)
Groove for
P.C. boaed
When mounting a new board, check that it is
correctly set in the groove of the base holder of
P.C. board base.
Inverter box
(Metal sheet)
Heat sink
– 163 –
No.
Part name
Procedure
Remarks
† Fan motor
1) Perform works of items 1) to 5), 7) of
2) Remove the flange nut fixing the fan motor
and the propeller fan.
Flange
nut
• Loosen the flange nut by turning clock-
wise. (To tighten the flange nut, turn it
counterclockwise.)
3) Remove the propeller fan.
4) Remove the lead wire from the hook fixing
the fan motor lead wires on the motor
base. (Three positions)
5) Disconnect the connector for fan motor
from the inverter.
Loosen by turning
clockwise
6) Take off the fixing screws (4 pcs.) while
holding by hands so that the fan motor
does not fall.
NOTE :
Tighten the flange nut with torque 9.8Nm
(100kgf/cm).
Propeller fan
Fan motor
Fixing claws for
fan motor lead
wires (3 positions)
Motor base
– 164 –
No. Part name
Procedure
Remarks
† Compressor 1) Perform works of items , ‚, ƒ, „, and
ꢀ.
Motor
base
2) Evacuate refrigerant gas.
3) Disconnect the connector for fan motor from
the inverter.
4) Take off screws fixing the motor base to the
bottom plate. (ST1T Ø4 x 10L, 2 pcs.)
5) Remove the motor base together with the
fan motor and the propeller fan.
6) Take off screws fixing the partition plate to
the valve support plate.
Partition plate
(ST1T Ø4 x 10L, 2 pcs.)
7) Remove the valve support plate.
(M6 x 4 pcs.)
8) Take off screws of the partition plate and the
bottom plate. (ST1T Ø4 x 10L, 2 pcs.)
9) Take off screws of the partition plate and the
heat exchanger. (ST1T Ø4 x 10L, 2 pcs.)
Valve support
Screw
10) Remove the noise-insulator.
11) Remove the terminal covers of the com-
pressor, and disconnect lead wires of the
compressor and the compressor thermo
assembly from the terminal.
12) Remove pipes connected to the compres-
sor with a burner.
Partition
plate
CAUTION
Pay attention to that flame does not involve
4-way valve or PMV. (If doing so, a malfunc-
tion may be caused.)
Valve
support
13) Pull the refrigerating cycle upward.
14) Take off nut fixing the compressor on the
bottom plate. (3 pcs.)
15) Pull the compressor toward you.
CAUTION
Compressor
lead wire
When reconnecting the lead wires to the
compressor terminals after replacement of
the compressor, be sure to caulk the Faston
terminal without loosening.
Case thermo
Remove
(Discharge
pipe)
Remove
(Suction
pipe)
Compressor
nut (3 pcs.)
– 165 –
No.
Part name
Procedure
Remarks
ˆ Reactor
1) Perform works of items 1 of and „.
2) Take off screws fixing the reactor.
(Ø4 x 10L , 2 pcs. per one reactor.
An outdoor unit has two reactors on the
partition plate.)
Partition plate
Screws
Reactor
‰ Pulse Modulating 1. Detachment
Valve (PMV) coil
1) Perform works of items 1 of and ƒ.
2) Remove the coil from PMV body while
pulling it upward.
Positioning extrusion
PMV body
2. Attachment
1) Match the positioning extrusion of the coil
surely to the concavity of PMV body to fix it.
Concavity
PMV coil
– 166 –
No.
Part name
Procedure
Remarks
Š Fan guard
1. Detachment
1) Perform works of items 1 of and „.
Discharge
port cabinet
2) Remove the air flow cabinet, and put it
down so that the fan guard side directs
downward.
Bell mouth
Perform work on a corrugated card-
board, cloth, etc. to prevent flaw to the
product.
Remove
two screws
3) Take off screws fixing the bell mouth.
(ST1Tf4 x 10L, 2 pcs.)
4) Remove the bell mouth.
Bell mouth
5) Remove the hooking claws by pushing
with minus screwdriver along with the
arrow mark as shown in right figure.
Discharge
port cabinet
2. Attachment
1) Insert claw of the fan guard in hole of the
discharge panel. Push the hooking claws
(5 positions) with hands and fix the claws.
Minus screwdriver
Fan guard
After all the attachment works are
completed, check that all the hooking
claws are fixed to the specified posi-
tions.
2) Mount the bell mouth by hooking three
claws at upper side of the bell mouth in the
slits on the discharge cabinet.
3) After attachment, fix the bell mouth with
screws. (ST1Tf4 x 10L, 2 pcs.)
Hooking claw
Discharge port cabinet
Slit (3 positions)
Bell mouth
Claw (3 positions)
– 167 –
16. EXPLODED VIEWS AND PARTS LIST
16-1. Indoor Unit
4-Way Air Discharge Cassette Type
RAV-SM560UT-E/RAV-SM800UT-E
209
229
CODE No.
SET DATA
UNIT No.
SETTINGTEST R.C. No.
225
208
202
226
UNIT
SET CL
224
210
201
207
215,216,217,
218,221,222
203,204
211,212,213,
214,219,220
223
227,228
206
Location
Location
No.
Part
Description
Part
Description
No.
201
43121703 Pump, Drain, ADP-1409,
220-240V
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
43194078 Nut, Flare, 5/8 IN, Ø15.88
43194080 Socket, 1/2 IN, Ø12.7
43194079 Socket, 5/8 IN, Ø15.88
43049697 Bonnet, Ø6.35
202
203
204
205
206
43120215 Fan, Ass’y Turbo, TJ461
4314J122 Refrigeration Cycle Ass’y
4314J123 Refrigeration Cycle Ass’y
4318T313 Owner’s Manual
43047609 Bonnet, Ø9.52
43147195 Bonnet, 1/2 IN, Ø12.7
43194029 Bonnet, Ø15.88
43172160 Pan Ass’y, Drain,
PS-F+ABS, Sheet
43019904 Holder, Sensor, SUS
43170231 Hose, Drain
207
208
209
210
211
212
213
214
215
215
43151279 Switch, Float, FS-0218-106
43121692 Motor, Fan, SWF-230-60-1
43170232 Hose, Drain, 25A
43139137 Rubber, Cushion
43097204 Nut
43079249 Band, Hose
43147656 Distributor Ass’y
43047545 Nut, Flare, 1/4 IN, Ø6.35
43047546 Nut, Flare, 3/8 IN, Ø9.52
43194051 Socket, Ø6.35
43147657 Distributor Ass’y
4316V194 Remote Controller, SX-A3JE
4316V195 Remote Controller, SX-A11JE
4316V196 Remote Controller, WX-W2JE
4316V197 Remote Controller, WH-H1JE
43194026 Socket, Ø9.52
43194081 Nut, Flare, 1/2 IN, Ø12.7
43194081 Nut, Flare, 1/2 IN, Ø12.7
– 168 –
402
404
401
405
403
Location
No.
Part
Description
401
402
403
404
43060750 Terminal Block, 3P
43050382 Sensor, TC (F6)
43150297 Sensor, TC
43160445 Terminal Block, 2P,
1A, AC30V
405
4316V188 P.C. Board Ass’y, MMC-1402
– 169 –
Concealed Duct Type
RAV-SM560BT-E/RAV-SM800BT-E
230,231
202,203
210,211,214,
215,218,219
204
227
CODE No.
212,213,216,
217,220,221
SET DATA
UNIT No.
SETTINGTEST R.C. No.
224,225
UNIT
201
SET CL
208,209
222
206,207
Location
No.
Location
Part
Description
Part
Description
No.
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
43120149 Fan, Multi Blade
218
219
220
221
222
223
224
43049697 Bonnet, Ø6.35
43047609 Bonnet, Ø9.52
43147195 Bonnet, 1/2 IN, Ø12.7
43194029 Bonnet, Ø15.88
43019822 Holder, Sensor, SUS
43160394 Connector, 9P
4314J100 Refrigeration Cycle Ass’y
4314J101 Refrigeration Cycle Ass’y
43147654 Distributor Ass’y
43147655 Distributor Ass’y
43121643 Motor, Fan
43121645 Motor, Fan
43155088 Capacitor, Electrolytic,
2.5MFD, 500V
43191304 Drain Ass’y
225
226
43155096 Capacitor, Electrolytic,
5MFD, 400V
43191305 Pan, Drain
43047545 Nut, Flare, 1/4 IN, Ø6.35
43047546 Nut, Flare, 3/8 IN, Ø9.52
43194081 Nut, Flare, 1/2 IN, Ø12.7
43194078 Nut, Flare, 5/8 IN, Ø15.88
43194051 Socket, Ø6.35
43121688 Pump, Drain, PJD-05230TF,
220-240V 50/60Hz
227
228
229
230
231
4316V194 Remote Controller, SX-A3JE
4316V195 Remote Controller, SX-A11JE
4316V196 Remote Controller, WX-W2JE
43119462 Filter (SM560BT-E)
43194026 Socket, Ø9.52
43194080 Socket, 1/2 IN, Ø12.7
43194079 Socket, 5/8 IN, Ø15.88
43119463 Filter (SM800BT-E)
– 170 –
403
402
401
406
404
405
Location
No.
Part
Description
401
402
403
404
43060750 Terminal Block, 3P
43050382 Sensor, TC (F6)
43150299 Sensor, TA
43160445 Terminal Block, 2P,
1A, AC30V
405
406
4316V189 P.C. Board Ass’y,
MCC-1403 (220-240V)
43158180 Transformer, TT-09
(AC220-240V)
– 171 –
RBC-U21PG(W) - E
304
311
312
306
307
305
301
303
310
308
313
302
309
Location
Part
Location
Description
Part
Description
No.
No.
301
302
303
304
305
306
307
43409164 Panel, PS-HI100
43480010 Air Filter, ABS
308
309
310
43407116 Grille, Catch, ABS
43409168 Grille, Air, Inlet
43407120 Outlet, Air Form, PS-F
4302C029 Motor, Louver, MP24GA
43409173 Louver, ABS
43409182 Cover, Panel Ass’y,
PS-HI100
311
312
313
43407123 Fix, Motor, ABS
43460108 Lead, Motor
43482025 Washer, SPCC
43422001 Joint, Kit
43422002 Joint, Kit
– 172 –
High-Wall Type
220
219
232
221
213
229
218
216
211
222
227
201
205
228
230
208
209
231
226
217
203
224 225
223
212
210
207
204
236
233
202
206
Location
No.
Location
Part
Description
Part
Description
No.
201
202
203
204
205
206
207
208
209
210
211
212
213
43T00355 Front Panel Ass’y
43T00356 Grille Ass’y
43T80014 Air Filter, (L)
43T80013 Air Filter, (R)
43T80003 Filter, Frame
43T01004 Mark
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
236
43T19003 Holder, Sensor
43T49009 Spring
43T49036 Plate, EVA, Seal
43T49039 Holder, Plate EVA, Seal (U)
43T49038 Plate EVA, Seal (D)
43T49037 Holder, Plate EVA, Seal (D)
43T79007 Guide, Drain
43T03010 Body, Right
43T03011 Body, Left
43T39016 Fix Motor
43T03012 Hide, Claw
43T09317 Grille, Horizontal
43T70301 Hose Ass’y, Drain
43T60075 Fan Motor Cord
43T21327 Motor, Fan, ICF-340-30-2
43T20014 Fan, Cross Flow
43T22008 Bearing
43T21302 Motor, Stepping, MP35EA12
43T44316 Refrigeration Cycle Ass’y
(SM560KRT-E)
43T39015 Base, Bearing
43T03305 Back Body Ass’y
43T07022 Holder, Pipe
213
42T44317 Refrigeration Cycle Ass’y
(SM800KRT-E)
43T82007 Plate, Installation
43T85400 Owner’s Manual
43T62029 Cover, Terminal
216
216
43T11002 Pipe, Shield
43T11306 Pipe, Shield (SM800KRT-E)
– 173 –
RAV-SM560KRT-E/RAV-SM800KRT-E
411
410
406
408
402
401
413
412
404
404
403
Location
No.
Location
Part
Description
Part
Description
No.
401
402
403
404
406
408
410
43T60047 Terminal, 3P
410
43T69347 P.C. Board, Ass’y, MCC-
1370A, MCC-1370B
43T60320 Terminal, 3P
(SM800KRT-E)
43T60321 Terminal, 2P
411
412
413
43T69325 P.C. Board, Ass’y, AI, MCC-
1337
43T50304 Temperature Sensor, TC, TCJ
43T69005 Sensor, Thermostat, TA
43T58302 Transformer, TT-02
43T69066 P.C. Board Ass’y, WRS-LED,
MCC-819-02
43T69346 P.C. Board, Ass’y, MCC-
1370A, MCC-1370B
43162047 Cord clamp
(SM560KRT-E)
– 174 –
16-2
4
RAV-
31
INVERTER
11
25
17
2
30
13,14
10
29
9
18
7
8
28
21,
22
23,
24
6
26
27
12
3
15
16
20
5
19
1
Location
No.
Location
No.
Part
Description
Part
Description
18
19
43146617 Solenoid, Coil, LB64045
1
2
43105037 Cabinet, Front, PCM
43100239 Cabinet, Back, PCM
43042468 Base, Ass’y
43046385 Valve, Pulse, Modulating,
SKV-18D26
3
20
43046394 Coil, PMV, DKV-
MOZS744BO
4
43005508 Cabinet, UP, PCM
43119460 Guard, Fan, PP
5
21
22
23
43046392 Valve, Packed, 6.35, AO
43147195 Bonnet, 1/2 IN
6
43119448 Cover, Packed, Valve
43062230 Cover, Wiring, Ass’y
43047667 Nut, Flange
7
43046393 Valve, Packed, 12.7, HKU-
R410A-H4
8
9
43020329 Fan, Propeller, PJ421
4302C033 Motor, Fan, ICF-140-43-1
4314G128 Condenser, Ass’y
24
25
26
27
28
29
30
31
43147196 Bonnet, 1/4 IN, 6.4 CU
43055521 Reactor, CH-57
10
11
12
13
14
15
16
17
43063321 Holder, Sensor, 4-8, 9.52
43063322 Holder, Sensor, 6-11.4, 12.7
43063325 Holder, Sensor, 6-6.35, 8
43063332 Holder, Sensor
43041609 Compressor, DA130A1F-23F
43050407 Thermostat, Bimetal
43063317 Holder, Thermostat
43097206 Bolt, Compressor, M6
43049749 Rubber, Cushion
43089160 Cap, Waterproof
43032441 Nipple, Drain
43046363 Valve, 4-WAY, VT7101D
– 175 –
702
TE Sensor
TS Sensor
TO Sensor
TD Sensor
701
705
703
704
Location
No.
Part
Description
701
702
43050334 Sensor, TD (F4),
TD Sensor
43050382 Sensor, TC (F6),
TC Sensor
703
704
43062228 Base, P.C. Board, ABS
43160469 Terminal Block, 6P,
AC250V, 20A
706
4316V182 P.C. Board Ass’y,
MCC-813
– 176 –
Revised 3/June/2004
RAV-SM800AT-E
4
5
11
10
38
37
9
8
2
32
21,22
36
24
23
34
7
35
30
14
1
6
31
3
13
27
19
25
28
29
18
15
16,17
33
26
20
12
Location
Part
No.
Description
Part
Description
No.
1
2
3
4
5
6
7
8
43191634 Cabinet, Air Outled
43191636 Cabinet, Front, Ass’y
43191635 Cabinet, Side, Ass’y
43191637 Panel, Upper
22
23
24
43046348 Coil, Solenoid,
VHV-01A150A1
43046385 Valve, Pulse, Modulating,
SKV-18D26
43046386 Coil, PMV,
DKV-MO25743BO
43048066 Accumulator Ass’y
43005489 Guard, Fin
43191630 Guard, Fan, PP-K
43122065 Bell Mouth, Plastic
43047667 Nut, Flange
25
26
43146584 Valve, Packed, 9.52DIA,
HKT9.52
27
28
29
30
31
32
33
43047401 Bonnet, 3/8 IN, 9.52 CU
43146613 Valve, Ball, B5/8F
Bonnet
43148169 Strainer
43148176 Strainer
9
Fan, Propeller, PJ491, AS-G
43121693 Motor, Fan, ICF-140-63-1
4314G117 Condenser, Ass’y
43191515 Panel, Front, Piping
43191605 Panel, Back, Piping
43119390 Hanger
43041772 Compressor Ass’y
43050407 Thermostat, Bimetal
43063317 Holder, Thermostat
43005482 Base Ass’y
10
11
12
13
14
15
16
17
18
19
20
21
43058266 Reactor, CH-47-Z-K
43063321 Holder, Sensor,
4-8, 9.52
34
35
43063322 Holder, Sensor,
6-11.4, 12.7
43063325 Holder, Sensor,
6-6.35, 8
43049739 Cushion, Rubber
43097204 Nut
36
37
38
43063332 Holder, Sensor
43032441 Nipple, Drain
43058268 Reactor, CH-43-Z-K
43046344 Valve, 4-WAY, CHV-0213
– 177 –
INVERTER COVER
708,709
702
701
TO Sensor
706
TE Sensor
TS Sensor
TD Sensor
INVERTER BOX
707
704
703,705
Location
Part
Description
No.
701
702
704
43050334 Sensor, TD (F4), TD Sensor
43050382 Sensor, TC (F6), TC Sensor
43160469 Terminal Block, 6P,
AC250V, 20A
705
707
43162042 Base, P.C. Board, ABS
4316V183 P.C. Board Ass’y, CDB,
MCC-1398
708
4316V184 P.C. Board Ass’y, IPDU,
MCC-1359
– 178 –
RAV-SM560XT-E/RAV-SM800XT-E
220
222
224
217
227
218
214
207
208
223
216
208
212
203
219
235
204
206
202
221
225
226
213
211
229
228
210
215
233
231
209
205
235
234
201
230
232
Location
No.
Location
No.
Part
Description
Part
Description
201
202
203
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
43T09312 Air Inlet Grille
43T00357 Panel Arm Ass’y
43T00361 Front Panel Ass’y
43T00358 Front Panel Ass’y
43T01004 Mark
220
221
222
223
224
225
226
227
228
229
230
231
231
232
232
232
232
233
234
235
43T09314 Vertical Louver
43T49303 Pipe Holder
43T19304 Cover Body L
43T19305 Cover Body R
43T19306 Cover Body LD
43T19307 Bush Body R
43T19308 Bush Body D
43T82302 Installation Plate
43T60314 Terminal Cover
43T62303 Connector Cover
43T79303 Drain Band
43T80302 Air Filter
43T00359 Cap Screw C
43T00360 Cap Screw LR
43T20303 Fan Cover
43T20304 Motor Band Ass’y
43T20305 Multiblade Fan
43T19309 Screw Set (D-T)
43T21325 Fan Motor
43T83003 Remote Controller Holder
43T69309 Wireless Remote Controller
43T69310 Wireless Remote Controller
43T85335 Owner’s Manual
43T72301 Drain Pan Ass’y
43T79304 Drain Hose Ass’y
43T19303 Lover Motor Ass’y
43T09313 Horizontal Louver
43T85336 Owner’s Manual
43T85337 Owner’s Manual
43T85341 Owner’s Manual
43T49304 Flexible pipe, Ø12.70, Ass’y
43T80003 Filter Flame
43T44319 Refrigeration Ass’y, Ø12.70
43T03303 Back Body Ass’y
43T00365 Grille Stopper Ass’y
– 179 –
401
403
402
404
405
406
407
408
Location
Part
Description
No.
401
401
401
401
402
43T69311 P.C. Board
43T69312 P.C. Board
43T69313 P.C. Board
43T69314 P.C. Board
43T50004 Temperature Sensor
– 180 –
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