Air conditioner
Edition: 10070808
Domestic
Air conditioner
HSU18VH7
CAUTION
READ THIS MANUAL
CAREFULLY TO
DIAGNOSE TROUBLE
CORRECTLY BEFORE
OFFERING SERVICE.
THIS MANUAL IS USED
BY QUALIFIED
APPLIANCE
TECHNICIANS ONLY.
HAIER DOES NOT
ASSUME ANY
RESPONSIBILITY FOR
PROPERTY DAMAGE
OR PERSONAL INJURY
FOR IMPROPER
SERVICE
PROCEDURES DONE
BY ONE UNQUALIFIED
PERSON.
Air conditioner
Edition: 10070808
1. General information
This Service Manual describes the operation, disassembly, troubleshooting, and
repair of Haier Room Air Conditioners, etc. It is intended for use by authorized services
who troubleshoot and repair these units.
It is assumed that users of this manual are familiar with the use of tools and
equipment used to troubleshoot and repair electrical, mechanical, and refrigeration
systems; and understand the terminology used to describe and discuss them.
Haier urges you read and follow all safety precautions and warnings contained in this
manual. Failure to comply with safety information may result in severe personal injury or
death.
Related Publications
This is a base service manual, covering a range of similar models. It is intended to be
used in conjunction with the Parts Manual and Technical Sheet covering specific model
being serviced.
NOTE: General Precautions and Warnings
! WARNING
To avoid risk of personal injury or death due to electrical shock, disconnect electrical
power to unit before attempting to service the unit.
!
WARNING
To avoid risk of personal injury or death due to electrical shock, DO NOT, under any
circumstances, alter the grounding plug .Air conditioner must be grounded at all times. Do
not remove warning tag from power cord. If a two-prong (non-grounding) wall receptacle
is encountered, contact a qualified electrician and have the receptacle replaced with a
properly grounder wall receptacle in accordance with the National Electrical Code.
!
WARNING
To avoid risk of heat exposure, which may cause death or severe illness, air
conditioner must be monitored when malfunctions or shuts down.
!
WARNING
To avoid risk of personal injury or death due to electrical shock, grounding wires and
wires colored like grounding wires are NOT to be used as current carrying conductors.
The standard accepted color coding for ground wires is green or green with a yellow
stripe. Electrical components such as the compressor and fan motor are grounded
through an individual wire attached to the electrical component and to another part of the
air conditioner. Grounding wires should not to be removed from individual components
while servicing, unless the component is to be removed and replaced. It is extremely
important to replace all removed grounding wires before completing service.
- 1 -
10070808
HSU18VH7
Product Features
TEMP
SIGNAL SENDING
FAN SPEED
SLEEP
HEALTH
POWER ON/OFF
18000/17800 BTU
1580/1560W/7/7.5A
SEER:13.0/13.0
HSPF:7.7/7.7
18000/18000 BTU
1520/1480W/6.7/7.2A
500 CFM
1PH 230/208V ~ 60Hz
10070808
HSU18VH7
1 PH 230/208V / 60Hz
T1
18000/17800 BTU
1580/1560W/7/7.5A
/
13.0/13.0
SEER
HSPF
18000/18000 BTU
1520/1480W/6.7/7.2A
/
7.7/7.7
-7℃～43℃
1350rpm
1260rpm
1180rpm
900/830rpm
(High/Med/Low)
500/480/450CFM
I
IP24
5.2 Pints/hr
YR-H24
3G2.5mm2
Toshiba/PA160X2CS-3KUU
750ml
R410A/67.4Oz
50g
47/46/44 47/45/44
60/62
Indoor(H/M/L)
Outdoor
(dB)
Φ16mm
600Psig
600Psig
Φ16mm
Low pressure at cool side
Φ6.35/12.7mm
7m
3/15m
33.6lbs
40lbs
116lbs
124lbs
8 13/16*45 15/32*12 1/8
28 3/4*33 27/32*10 1/2
9 13/16*40 3/8*14 1/8
26 3/4*32 5/8*13 15/16
3
10070808
3.1 Basic Function
86 F
86 F
86 F
60
60
60
F
F
F
4
Air conditioner
Edition: 10070808
3.2 . Introduction to electrical control functions
Including brief introduction to air conditioners of series models and electric control
function.
Brief introduction to electric control function
3.2.1
Automatic running (applicable to fan-coil model)
When the running mode is turned to automation after starting the system, the system
will first determine the running mode according to the current room temperature and then
will run according to the determined mode. Tr in the following selection conditions means
room temperature, Ts means setting temperature, Tp means temperature of indoor coil
pipe
a. Tr≥23℃
b. Tr<23℃
running refrigerating mode Ts=26℃
running heating mode Ts=23℃
After turning to the automation mode, the running mode can be switched between
refrigerating mode, fan mode and heating mode according to the change of the indoor
ambient temperature. But the automatic conversion between refrigerating mode and
heating mode must be conducted after 15 minutes.
3.2.2
Indoor temperature control
Compressor OFF
Compressor ON
Heating
-1
+1
Compressor OFF
Refrigerating
-1
+1
Setting temperature
Setting temperature
Compressor ON
3.2.3
Dehumidification running
The compressor, outdoor fan and indoor fan will run as per the following working
pattern so as to realize the refrigerating running of dehumidification:
Tr> Ts+2℃, compressor, outdoor fan run continuously, indoor fan runs as
3.2.3.1
per setting wind speed (State 1);
3.2.3.2 Ts+2℃≥Tr≥Ts, compressor, outdoor fan run intermittently with 10
minutes ON, 6 minutes OFF. (Compressor and outdoor fan are synchronous)
indoor fan runs in fixed lower wind speed, and will cease at the stand-by time of 3
minutes (State 2)
Tr <Ts, compressor, outdoor fan ceases, indoor fan runs in lower wind speed.
3.2.3.3
(State 3)
- 5 -
Air conditioner
Edition: 10070808
State1
State2
Ts
State3
Ts-1
Ts+2
Ts+3
3.2.4
Warm start (preventing cold wind when heating running begins, applicable to
fan-coil model))
When heating running begins, indoor fan will conduct the following fan control:
If the temperature of indoor coil pipe is ≥ 23℃, start lower wind speed;
If the temperature of indoor coil pipe is ≥ 38℃ or the running time of
compressor≥ 4 minutes, turn to setting wind speed.
3.2.5
Control of indoor fan under heating OFF state (applicable to fan-coil model)
Under heating state, the compressor will cease; if the indoor coil pipe’s
temperature Tp≥23℃, indoor fan will run in lower wind speed.
3.2.6
Defrosting control (applicable to fan-coil model)
Defrosting beginning condition:
a. After the state of Tp-Tr<16℃ is continued for 5 minutes, the accumulated
running time of the compressor exceeds 45 minutes, the continuous running
time of the compressor exceeds 20 minutes;
b. The accumulated running time of the compressor exceeds 3 hours, the
continuous running time of the compressor exceeds 20 minutes, indoor
unit’s Tp <38℃;
c. The continuous running time of the compressor exceeds 20 minutes, the
temperature of indoor coil pipe decreases 1℃ every 6 minutes, which lasts
for more than 3 times, indoor unit’s Tp <38℃;
d. When the indoor unit is in the state of overload protection and the outdoor
unit ceases, when the rerunning time of outdoor unit exceeds10 minutes, the
accumulated running time of the compressor exceeds 45 minutes, the
continuous running time of the compressor is over 20 minutes, and Tp <38
℃.
Defrosting will begin if one of the above conditions is met.
Defrosting finishing condition:
If the defrosting time exceeds 9 (for 12 models)or 7 (for 07,09 models)
minutes,the original heating state will be resumed;
- 6 -
Air conditioner
Edition: 100070808
Note: Sequence of defrosting actions:
9(or 7)minutes
Compressor
ON
OFF
Four-way valve ON
OFF
Outdoor fan
ON
OFF
55s
1min
55s
1min
3.2.7
Freezing prevention function
Under refrigerating and dehumidifying state, the air conditioner will control the
outdoor fan as per the temperature Tp of the indoor coil pipe according to the
following conditions:
Zone of return deference
Compressor,outdoor fan OFF after 5 minutes
Fan,compressor ON
0
7
Tp(℃.)
3.2.8 3 minutes stand-by time
When the compressor ceases due to the sensor OFF, unit On or OFF or fault, it
will maintain pause for 3 minutes.
3.2.9 Overload protection during heating running
Temperature protection of indoor coil pipe: Under heating state, the air
conditioner will control the running of the fan as per the temperature Tp of the
indoor coil pipe and according to the following conditions:
a. 58℃≤Tp, outdoor fan ceases;
Tp≤54℃, outdoor fan resumes; the time
from ceasing to resuming is about 45 seconds;
b. 68℃≤Tp, outdoor fan of compressor ceases after 5 seconds; Tp≤47℃,
compressor resumes after 3 minutes.
Current protection (different models have different protection currents):
a. When 13.0A ≤current of compressor, outdoor fan cease; current of compressor
≤11.7A, outdoor fan resume;
3.2.10 Compensatory function of power failure
If the unit is suddenly off during running due to power failure, or closed for
maintenance or troubleshooting, it will restart to run after the power resumes with
the original condition before the unit is off
a.
Note: Function setting: Pressing the SLEEP button on the remote control unit
for 10 times until hearing 4 sounds from the buzzer on the panel.
b.
Memory content: Running mode, setting wind speed, setting
- 7 -
Air conditioner
Edition: 10070808
temperature, sleep state, flap state.
c. Cancellation of function: Pressing the SLEEP button on the remote
control unit for 10 times until hearing 2 sounds from the buzzer on the
panel.
3.2.11 Trial run function
When the air conditioner is in OFF state, press the emergency switch for 5
seconds till hearing 2 sounds of click from the buzzer, then the air conditioner will
turn to the trial run state. The unit will run in the refrigerating mode and the
indoor fan will run in high wind speed mode.
3.2.12
Emergency running mode
When the air conditioner is in stand-by state, press the emergency switch till
hearing a sound from the buzzer, then the air conditioner will turn to the
emergency run state. The rules of emergency run are as follows:
a. Tr≥23℃, running refrigerating mode, Ts = 26℃;
b. Tr<23℃, running heating mode, Ts = 23℃.
Temperature compensation.
3.2.13
There is the function of automatic temperature compensation when heating, with
heating temperature setting = Ts(remote setting) + 4℃.
Sleeping function
3.2.14
a. After setting the sleeping function, the refrigerating mode and dehumidification
mode will run as per the following rules:
6hours
T(℃)
1 hour
Ts+2
Ts+1 1 hours
Ts
Sleep
OFF
t(hour)
b. After setting the sleeping function, the heating mode will run as per the
following rules:
T(℃)
Ts
3hours
3hours
Ts-2
Ts-3
Ts-4
1 hour
As shown in the above diagram, after running for 1 hour under refrigerating mode and
dehumidification mode, the setting temperature will increase 1℃; after
- 8-
Air conditioner
Edition: 10070808
running for 1 hour under heating mode, the setting temperature will decrease 2℃
,
after another 1 hour, it will decrease the 2℃ again, and after 3 hours, it will
increase 1℃, and after other 3 hours, it will cease.
MODEL
The SW2 select“25”OR“35”
PCB
0010403861
HSU18VH7
25
- 9 -
10070808
10
Air conditioner
Edition: 10070808
Table for Wrong Codes
Wrong express
reasons
Ways and means
solutions
tools
power timing operating
indoor ambient
temperature
sensor
Check the sensor of indoor ambient
temperature,if the resistance value is
∞,the sensor is
0 or
abnormal.
★ ■ ■
Multimeter
Multimeter
see the following flow chart 1
abnormal
indoor pipe
temperature
sensor
Check the sensor of indoor coilpipe
,if the resistance value is 0 or
∞,the sensor is abnormal.
★ □ □
see the following flow chart 1
abnormal
Indoor fan
motor don’t
feed back
Check whether indoor PCB or motor
is abnormal
■
★
□
□
★
★
see the following flow chart 2 Multimeter
Data error or no Check whether the EEPROM is
EEPROM installed properly
□ ★
Change the indoor PCB
Multimeter
■
on flash off
chart 1: SENSOR MALFUNCTIONS
NO
Firstly check whether Terminal CN8 on
the indoor mainboard contact well or not?
Pull out the terminals on the indoor
mainboard and reinsert them.
YES
Pull the sensor out of the mainboard
1) measure the value of resistance between its two jumpers
2)measure the temperature at the room temperature sensing head.
Check the specifications of the sensor to decide whether the sensor is damaged or not?
YES
Replace with new sensor
NO
YES
YES
The Indoor PCB is broken
Replace with new indoor PCB
chart 2 Indoor fan motor malfunction
Pull out and reinsert the terminals.
Check whether Terminal CN2 on the indoor mainboard is well inserted or not?
NO
Electrify the machine again and turn it on in the Cool state with the remote controller.
Measure the voltage between 1 and 4 of Terminal CN2 about DC150-380V,Measure the
voltage between 5 and 4 of Terminal CN2 on the indoor mainboard about DC13-16.5V.
Measure the voltage between 7 and 4 of Terminal CN2 about 1-6.5v
the motor of the indoor
unit is damaged and needs
replacing.
YES
NO
the PCB of the indoor unit is damaged and needs replacing
- 11-
10070808
12
10070808
13
10070808
-14-
Air conditioner
Edition: 10070808
-15-
10070808
Indoor unit
Grounding line
Grounding line
Connecting wiring:AWG12X4+AWG18X2.
Power Cable:AWG12X3.
Connecting wiring:AWG12X5.
Power Cable:AWG12X3.
16
10070808
-17-
10070808
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10070808
19
10070808
WIRING DIAGRAM INDOOR UNIT
WIRING DIAGRAM OF INDOOR UNIT
LOUVER
MOTOR
M
FAN MOTOR
ION GENERATOR
M
COMP
CN4
N
CN1
SW1
CN2
CN3
L
CN7
CN9
CN8
PCB
CN10
CN12
NOTING：
1
2
3
4
5
1
2
ONLY COOLING TYPE DOESN'T HAVE THE
DOTTED LINE.
THE DASHED UNIT IS OPTIONAL UNIT.
w w
w w w
R:RED
W:WHITE
B:BLACK
TO OUTDOOR UNIT
BL
:BLUE
BR:BROWN
20
Edition:10070808
OUTDOOR UNIT
WIRING DIAGRAM OF OUTDOOR UNIT
0010510468
B
B
R
R
SCM
R
～
C
BR
M
w
～
W
B
R
W
B
B
W
G
G
1
2
3
4
5
6
7
Grounding
line
L2(N)
L1(L)
TO INDOOR UNIT
Y/G:YELLOW/GREEN
R:RED
BL:BLUE
Y:YELLOW
B:BLACK
BR:BROWN
W:WHITE
Note: Because of the difference of compressor,
the dotted line part may not exist.
21
10070808
T(℃)
℃
R(KΩ)
251.8
236.9
223.1
210.1
197.9
186.5
175.9
165.9
156.5
147.7
139.5
131.8
124.5
117.7
111.3
105.3
99.63
94.3
T(℃)
R(KΩ)
38.95
37.08
35.31
33.63
32.04
30.53
29.1
27.75
26.47
25.25
24.1
T(℃)
R(KΩ)
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
8.441
8.103
7.78
-20
-19℃
℃
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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
-18
-17℃
℃
7.472
7.178
6.897
6.628
6.371
6.125
5.889
5.664
5.449
5.243
5.046
4.857
4.676
4.502
4.336
4.177
4.024
3.878
3.738
3.603
3.474
3.35
-16
-15℃
℃
-14
-13℃
℃
-12
-11℃
℃
-10
-9℃
℃
23
21.96
20.97
20.03
19.14
18.3
17.49
16.73
16
-8
-7℃
℃
-6
-5℃
℃
-4
-3℃
℃
89.3
-2
-1℃
84.58
80.14
75.96
72.02
68.31
64.81
61.51
58.39
55.45
52.68
50.06
47.58
45.24
43.02
40.93
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
15.3
0
1
2
3
4
5
6
7
8
9
14.65
14.02
13.42
12.85
12.31
11.79
11.3
10.83
10.39
9.96
3.231
3.117
3.008
2.903
2.802
2.705
2.611
2.522
℃
℃
℃
℃
10
11
12
13
9.553
9.165
8.794
22
10070808
T(℃) R(KΩ) T(℃) R(KΩ) T(℃) R(KΩ) T(℃) R(KΩ)
℃
-30
-29℃
155.4
146.4
138.1
130.2
122.9
116
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
30.88
29.42
28.03
26.72
25.48
24.3
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
8.141
7.819
7.511
7.217
6.936
6.668
6.411
6.166
5.931
5.707
5.492
5.287
5.09
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
2.666
2.577
2.491
2.408
2.329
2.253
2.179
2.108
2.04
0
1
2
3
4
5
6
7
8
9
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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
℃
-28
-27℃
℃
-26
-25℃
℃
-24
-23℃
109.5
103.5
97.77
92.44
87.42
82.71
78.29
74.12
70.21
66.52
63.06
59.79
56.71
53.81
51.08
48.5
23.18
22.12
21.12
20.17
19.26
18.4
℃
-22
-21℃
1.975
1.912
1.851
1.793
1.737
1.682
1.63
℃
-20
-19℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
℃
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
℃
-18
-17℃
17.59
16.81
16.08
15.38
14.71
14.08
13.48
12.91
12.36
11.84
11.35
10.88
10.43
10
4.902
4.722
4.549
4.383
4.225
4.073
3.927
3.788
3.654
3.525
3.402
3.283
3.17
℃
-16
-15℃
℃
-14
-13℃
1.58
1.531
1.484
1.439
1.395
1.353
1.313
1.274
1.236
1.2
℃
-12
-11℃
℃
-10
-9℃
℃
-8
-7℃
46.07
43.77
41.6
℃
-6
-5℃
39.55
37.62
35.79
34.06
32.43
℃
-4
-3℃
9.592
9.204
8.833
8.479
3.061
2.956
2.855
2.759
1.164
1.13
℃
-2
-1℃
1.098
1.066
1.035
-23-
10070808
HSU18VH7
-24-
10070808
CIRCUIT DIAGRAM
+5
CN20
CN5
DOOR-S
CN3
COM
+5V
R92 10K
XT1
JTP285
+5V
R71
R70
R72
10K
10K
10K
R66
10M
1
SW1
2
3
4
5
+5
8.00MHz
R68
1K
C27
102
R76
10k
R61
10K
R62
1K
IC1
PTC4
IRQ
RST
R74
E16
10K
1
2
3
4
5
6
7
8
9
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
PTC5
PTC3
R34
27
R32
22K
100UF/25V
C29
102
PTC2/MCLK
PTC1
+12
4
PTF0/TACH2
PTF1/TACH3
PTF2/TBCH2
PTF3/TBCH3
PTF4/TBCH0
NC
PTF7
PTF5/TBCH1
PTF6
PTE0/TXD
PTE1/RXD
PTE2/TACH0
PTE3/TACH1
PTE4/SS
PTE5/MISO
PTE6/MOSI
PTE7/SPSCK
VSS
61
R33
10K
PTC0
OSC1
OSC2
+5
C26
103
5V
C24
102
N3
R31
4.7K
10K
R95
2K
R82
+5V
CGMXFC
+5V
VSSA
VDDA
VREFH
10K
10K
10K
C25
R83
R84
R85
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
R93
2K
C15
R87 R86
104 1K 10K
C31
104
104
P1
2SC2412
PTD7
PTD6/TACLK
PTD5
PTD4/TBCLK
PTH1/KBD4
PTH0/KBD3
PTD3
53
52
51
N2
2SC2412
2SB1197
CN21
R60 4.7K
R77
10K
R88
100
+5V
GND
TX
RX
4
3
2
1
R54
R51
390
10K
C21
102
R59 1K
R89
R58
10K
17
R94
10K
10K
R55
10K
R56
100
19
20
PTD2
R78
560
5V
+5V
VSS/VREFL
VDDAREF
PTD1
R57
C18
0
+5V
43 R37
42 R38
41 R39
10K
10K
10K
10K
C16
104
VDD
C22
104
PTG0/KBD0
PTG1/KBD1
PTG2/KBD2
PTA0
PTD0
102
PTB7/ATD7
PTB6/ATD6
PTB5/ATD5
PTB4/ATD4
PTB3/ATD3
PTB2/ATD2
PTB1/ATD1
PTB0/ATD0
PTA7
40
39
38
37
36
35
34
33
R40
R41
25
IC2
VSS
A2
A1
A0
R81 R80
10K 10K
C17
103
10K
4
3
2
1
5
E18
SDA
SCL
TEST
VCC
R42
1K
10K
27
28
29
6
7
8
PTA1
PTA2
PTA3
PTA4
PTA5
PTA6
R43
R44 1K
100UF/25V
+5V
+5V
SW3
B
+5V
24C01A
R53
1K
A
R36
3.3K
R35
20K
JSS1270
R79
4.7K
R49 R50
10K 10K
C19
102
C20
102
R48
10K
R46 R47
10K 10K
MC908AB32 CFUE
+5V
BUZZ
4.7UF/50V
E13
N4
E14
R24
10K
CN8
R91
10K
2SC2412
+5V
1
2
3
4
R28
10K
R29
1k
+12V
+5V
4.7UF/50V
R90
200
IC8
ZJ1
2
+15V
C11
102
7
6
5
4
3
2
1
R18
D14
RLS4148
2.7K
TLP421
+15V
E22
4.7UF/50V
R13
R30
1k
D24
1N4007
R14
10K
C3
0.1UF/275VAC
+300v
1K
R17
10K
VR1
CN2
+5V
WH06-2-101
CT
D23
IC10
1N4007
R16
10K
R12
390
C9
104
TLP421
R15
10K
E12
470UF/25V
D22
D21
A057R/A057
C12
102
1N4007
1N4007
R45
10K
E21
4.7UF/50V
NTC
D8
FR102
C5
R2
R4
5D-15? NTC? 5.0
10
+15V
222/250VAC/X1Y1
C7
R5
E4
0.1uF 275VAC
T1
D5
L
1
2
3
4
7
6
5
L1
D3
D1
C4 0.1UF/275VAC
R1
18V/0.5W
E1
1.5K 10UF/50V
D9
C1
1
3
RV1
1N4007
100UF/450V
BCK-6-FE1901
UF4007
D7
CN4
LB2271
D4
470K/2W
C8
D2
1
N
222/250VAC/X1Y1
S14K350/550NR-14D
IC7
12V
+5
E11
D10
FR102
7805
C10
104
C13 C14
101 102
E10
1000UF/25V
E19
UF302
IC6
E2
470UF/25V
100UF/25V
10UF/50V
D13
R6
27
CN9
R65
330
53
52
1
2
3
4
5
6
7
330
330
330
12V/0.5W
R11
R64
R67
R63
R69
0
61
E3
TLP421
+5V
E15
R3
1
IC9
C6
C28
102
51
10
103
4.7UF/50V
100UF/25V
R75
1K
LED BOARD
4
C30
102
C23
102
+5V
+12V
CN17
SW2
1
+5V
L
N1
2SC2412
D31
R52
17
K2
4.7K
R19 R21 R25 R73
4.7k 4.7k 4.7k 4.7k
CN18
1
IC3
I1
IN4148 G4A-1A-E 12VDC
COMP
R27
R26
R22
R20
R23
22K
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
FUSE
O1
O2
O3
O4
O5
O6
O7
29
28
27
26
25
20
19
F3.15A250VAC
+12V CN7
I2
I3
I4
I5
I6
I7
22K
22K
22K
22K
1
2
3
4
5
JQ1A
(
P
)
-12V
K4
CN10
1
4-W-VALVE
K1
-12V
CN12
1
JQ1A
(
P
)
GND
COM
ULN2003A
+12V
OUT FAN
CN1
1
2
ION-12V
25
|