HEAT CONTROLLER
INSTALLATION INSTRUCTIONS
PACKAGE AIR CONDITIONERS FEATURING EARTH-FRIENDLY
R410A REFRIGERANT
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PCG SERIES 6, 7.5, 8.5, 10 & 12.5 TON [21.1, 26.4, 29.9, 35.2 & 44 kW]
60 HZ MODELS
Recognize this symbol as an indication of Important Safety Information!
!
DO NOT DESTROY
PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE
FOR FUTURE REFERENCE.
WARNING
!
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALI-
FIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLA-
TION, ADJUSTMENT AND OPERATION OF THIS UNIT. READ
THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING
INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE
INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION,
ADJUSTMENT, SERVICE OR MAINTENANCE POSSIBLY RESULT-
ING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PER-
SONAL INJURY OR DEATH.
[
] Designates Metric Conversions
92-21916-45-00
The units are weatherized for mounting outside of the building.
• R-410A refrigerant cylinders are pink.
The information on the rating plate is in compliance with the
FTC and DOE rating for single phase units. The following infor-
mation is for three phase units which are not covered under
the DOE certification program.
• R-410A, as with other HFC’s is only compatible with POE
oils.
• Vacuum pumps will not remove moisture from POE oil.
• R-410A systems are to be charged with liquid refrigerants.
Prior to March 1999, R-410A refrigerant cylinders had a dip
tube. These cylinders should be kept upright for equipment
charging. Post March 1999 cylinders do not have a dip tube
and should be inverted to ensure liquid charging of the
equipment.
1. The efficiency rating of this unit is a product thermal effi-
ciency rating determined under continuous operating condi-
tions independent of any installed system.
B. MAJOR COMPONENTS
The unit includes a hermetically-sealed refrigerating system
(consisting of a compressor, condenser coil, evaporator coil
with thermal expansion valve), a circulation air blower, a con-
denser fan, and all necessary internal electrical wiring. The
cooling system of these units is factory-evacuated, charged
and performance tested. Refrigerant amount and type are indi-
cated on rating plate.
• Do not install a suction line filter drier in the liquid line.
• A liquid line filter drier is standard on every unit.
• Desiccant (drying agent) must be compatible for POE oils
and R-410A.
3. Evaporator Coil / TXV
C. R-410A REFRIGERANT
The thermostatic expansion valve is specifically designed to
operate with R-410A. DO NOT use an R-22 TXV. The exist-
ing evaporator must be replaced with the factory specified
TXV evaporator specifically designed for R-410A.
All units are factory charged with R-410A refrigerant.
1. Specification of R-410A:
Application: R-410A is not a drop-in replacement for R-22;
equipment designs must accommodate its higher pressures. It
cannot be retrofitted into R-22 units.
4. Tools Required For Installing & Servicing R-410A Models
Manifold Sets:
-Up to 800 PSIG High side
-Up to 250 PSIG Low Side
-550 PSIG Low Side Retard
Pressure: The pressure of R-410A is approximately 60%
(1.6 times) greater than R-22. Recovery and recycle equip-
ment, pumps, hoses and the like need to have design pressure
ratings appropriate for R-410A. Manifold sets need to range up
to 800 psig high-side and 250 psig low-side with a 550 psig
low-side retard. Hoses need to have a service pressure rating
of 800 psig. Recovery cylinders need to have a 400 psig ser-
vice pressure rating. DOT 4BA400 or DOT BW400.
Manifold Hoses:
-Service Pressure Rating of 800 PSIG
Recovery Cylinders:
-400 PSIG Pressure Rating
-Dept. of Transportation 4BA400 or BW400
Combustibility: At pressures above 1 atmosphere, mixture of
R-410A and air can become combustible. R-410A and air
should never be mixed in tanks or supply lines, or be
allowed to accumulate in storage tanks. Leak checking
should never be done with a mixture of R-410A and air.
Leak checking can be performed safely with nitrogen or a mix-
ture of R-410A and nitrogen.
!
CAUTION
R-410A systems operate at higher pressures than R-22 sys-
tems. Do not use R-22 service equipment or components on R-
410A equipment.
2. Quick Reference Guide For R-410A
• R-410A refrigerant operates at approximately 60% higher
pressure (1.6 times) than R-22. Ensure that servicing equip-
ment is designed to operate with R-410A.
3
FIGURE 1
UNIT DIMENSIONS
403⁄16”
[1020.7 mm]
65⁄8”
[168.3 mm]
41⁄8”
POWER
ENTRY
[104.8 mm]
13⁄4” [44.5 mm]
DIA.
313⁄16”
[96.8 mm]
1111⁄16”
[296.9 mm]
613⁄16”
[173 mm]
CONTROL
ENTRY
COMPRESSOR
ACCESS
7⁄8” [22.2 mm]
DIA.
9311⁄16”
[2379.6 mm]
5”
[127 mm]
SUPPLY COVER
583⁄4”
[1492.2 mm]
RETURN COVER
ST-A1112-02-00
FIGURE 2
UNIT DIMENSIONS
23”
[584.2 mm]
2”
[50.8 mm]
14”
[355.6 mm]
25”
[635 mm]
2”
[50.8 mm]
151⁄8”
[384.2 mm]
34”
[863.6 mm]
8911⁄16”
[2278 mm]
47⁄16”
[112.7 mm]
543⁄4”
[1390.6 mm]
*ACTUAL OPENING
DIMENSIONS
2”
[50.8 mm]
107⁄16”
[265.1 mm]
2”
2”
[
] Designates Metric Conversions
ST-A1112-01-00
[50.8 mm]
[50.8 mm]
4
FIGURE 3
UNIT DIMENSIONS
58.75”
[1487.7 mm]
93.688”
[2379.7 mm]
44”
[1117.6 mm]
GAUGE PORT
CONNECTIONS
COMPRESSOR
ACCESS
(BOTH SIDE SOME MODELS)
BLOWER ACCESS
ELECTRIC HEAT
ACCESS
CONTROL ENTRY
POWER ENTRY
CONDENSATE DRAIN
1” [25.4 mm] FNPT
7.020”
[178.3 mm]
27.268”
[692.6 mm]
CONTROL/FILTER
ACCESS
33.715”
[805.5 mm]
5.625”
[142.9 mm]
A0737-03
FIGURE 4
BOTTOM VIEW
SUPPLY RETURN DIMENSIONS FOR DOWNFLOW APPLICATIONS
9311/ ”
16
[2379.4 mm]
16
47/ ”
8
151/ ”
14"
[355.6 mm]
25"
[635 mm]
[112.7 mm]
[384.1 mm]
16
107/ ”
[265.1 mm]
16
47/ ”
[112.7 mm]
23"
[585.5 mm]
34"
[863.6 mm]
54"
[1371.6 mm]
4
583/ ”
[1492.2 mm]
8815/ ”
[2259 mm]
16
8
21/ ”
[54 mm]
2
61/ ”
[165.1 mm]
21/ ”
8
8
23/ ”
[54 mm]
[60.3 mm]
2
271/ ”
8"
[203.2 mm]
[698.5 mm]
A0712-02
THRU THE BASE ELECTRIC
5
FIGURE 5
REAR VIEW
SUPPLY AND RETURN DIMENSIONS FOR HORIZONTAL APPLICATION
SUPPLY DUCT MAY EXTEND UP TO THIS LEVEL
44"
[1117.6 mm]
*26"
[660.4 mm]
34"
[863.6 mm]
12"
[304.8 mm]
32
77/ ”
[183.3 mm]
8
135/ ”
16
47/ ”
28"
[711.2 mm]
14"
[355.6 mm]
[346 mm]
[112.7 mm]
16
9311/ ”
[2379.6 mm]
A0714-03
*RECOMMENDED DUCT DIMENSIONS ARE 26”
6
GENERAL DATA - PCG
NOM. SIZES 6-121⁄2 TONS [21.1-43.9 kW]
Model PCG- Series
072A-3L
072A-4L
085A-3L
085A-4L
CONTINUED
1
Cooling Performance
Gross Cooling Capacity Btu [kW]
76,000 [22.27]
11.5/NA
76,000 [22.27]
11.5/NA
88,000 [25.78]
11.2/NA
88,000 [25.78]
11.2/NA
EER/SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Integrated Part Load Value3
Net System Power kW
2400/2375 [1133/1121]
73,000 [21.39]
53,900 [15.79]
19,100 [5.6]
N/A
2400/2375 [1133/1121]
73,000 [21.39]
53,900 [15.79]
19,100 [5.6]
N/A
2800/3000 [1321/1416]
85,000 [24.9]
66,100 [19.37]
18,900 [5.54]
N/A
2800/3000 [1321/1416]
85,000 [24.9]
66,100 [19.37]
18,900 [5.54]
N/A
6.31
6.31
7.53
7.53
Compressor
No./Type
1/Scroll
88
1/Scroll
88
1/Scroll
88
1/Scroll
88
5
Outdoor Sound Rating (dB)
Outdoor Coil—Fin Type
Tube Type
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
0.375 [9.5]
13.5 [1.25]
1 / 22 [9]
0.375 [9.5]
13.5 [1.25]
1 / 22 [9]
0.375 [9.5]
27 [2.51]
1 / 22 [9]
0.375 [9.5]
27 [2.51]
1 / 22 [9]
Indoor Coil—Fin Type
Tube Type
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
Orifices
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
Orifices
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
Orifices
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
Orifices
Refrigerant Control
Drain Connection No./Size in. [mm]
1/1 [25.4]
1/1 [25.4]
1/1 [25.4]
1/1 [25.4]
Outdoor Fan—Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Indoor Fan—Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
Motor HP
Motor RPM
FC Centrifugal
1/11x12 [279x305]
FC Centrifugal
1/11x12 [279x305]
FC Centrifugal
1/15x15 [381x381]
FC Centrifugal
1/15x15 [381x381]
Belt/Variable
Belt/Variable
Belt/Variable
Belt/Variable
1
1
1
2
1725
56
1
2
1725
56
1 1/2
1725
56
1 1/2
1725
56
Motor Frame Size
Filter—Type
Furnished
Disposable
Yes
Disposable
Yes
Disposable
Yes
Disposable
Yes
(No.) Size Recommended in. [mm x mm x mm] (6)2x18x18 [51x457x457] (6)2x18x18 [51x457x457]
(6)2x18x18 [51x457x457] (6)2x18x18 [51x457x457]
Refrigerant Charge Oz. [g]
Weights
120 [3402]
120 [3402]
190.9 [5412]
190.9 [5412]
Net Weights lbs. [kg]
Ship Weights lbs. [kg]
901 [409]
938 [425]
901 [409]
938 [425]
965 [438]
1002 [455]
965 [438]
1002 [455]
7
GENERAL DATA - PCG
NOM. SIZES 6-121⁄2 TONS [21.1-43.9 kW]
Model PCG- Series
090A-3L
090A-4L
102A-3L
102A-4L
CONTINUED
1
Cooling Performance
Gross Cooling Capacity Btu [kW]
93,000 [27.25]
11.2/NA
93,000 [27.25]
11.2/NA
101,000 [29.59]
11.2/NA
101,000 [29.59]
11.2/NA
EER/SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Integrated Part Load Value3
Net System Power kW
3000/2775 [1416/1310]
90,000 [26.37]
63,100 [18.49]
26,900 [7.88]
13
3000/2775 [1416/1310]
90,000 [26.37]
63,100 [18.49]
26,900 [7.88]
13
3200/3200 [1510/1510]
97,000 [28.42]
74,000 [21.68]
23,000 [6.74]
12.9
3200/3200 [1510/1510]
97,000 [28.42]
74,000 [21.68]
23,000 [6.74]
12.9
7.99
7.99
8.59
8.59
Compressor
No./Type
2/Scroll
88
2/Scroll
88
2/Scroll
88
2/Scroll
88
5
Outdoor Sound Rating (dB)
Outdoor Coil—Fin Type
Tube Type
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
0.375 [9.5]
27 [2.51]
1 / 22 [9]
0.375 [9.5]
2.7 [0.25]
1 / 22 [9]
0.375 [9.5]
27 [2.51]
2 / 18 [7]
0.375 [9.5]
27 [2.51]
2 / 18 [7]
Indoor Coil—Fin Type
Tube Type
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
TX Valves
1/1 [25.4]
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
TX Valves
1/1 [25.4]
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
TX Valves
1/1 [25.4]
0.375 [9.5]
13.5 [1.25]
2 / 18 [7]
TX Valves
1/1 [25.4]
Outdoor Fan—Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Indoor Fan—Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
FC Centrifugal
1/15x15 [381x381]
FC Centrifugal
1/15x15 [381x381]
FC Centrifugal
1/15x15 [381x381]
FC Centrifugal
1/15x15 [381x381]
Belt/Variable
Belt/Variable
Belt/Variable
Belt/Variable
1
2
1
2
1
3
1
3
Motor HP
Motor RPM
Motor Frame Size
1725
56
1725
56
1725
56
1725
56
Filter—Type
Furnished
Disposable
Yes
Disposable
Yes
Disposable
Yes
Disposable
Yes
(No.) Size Recommended in. [mm x mm x mm] (6)2x18x18 [51x457x457] (6)2x18x18 [51x457x457]
(6)2x18x18 [51x457x457] (6)2x18x18 [51x457x457]
Refrigerant Charge Oz. [g]
Weights
107.5/110.7 [3048/3138]
107.5/110.7 [3048/3138]
154.4/166.6 [4377/4723]
154.4/166.6 [4377/4723]
Net Weights lbs. [kg]
Ship Weights lbs. [kg]
1017 [461]
1054 [478]
1017 [461]
1054 [478]
1067 [484]
1104 [501]
1067 [484]
1104 [501]
8
GENERAL DATA - PCG
NOM. SIZES 6-121⁄2 TONS [21.1-43.9 kW]
Model PCG- Series
120A-4L
150A-3L
150A-4L
1
Cooling Performance
Gross Cooling Capacity Btu [kW]
123,000 [36.04]
11.2/NA
156,000 [45.71]
11/NA
156,000 [45.71]
11/NA
EER/SEER2
Nominal CFM/ARI Rated CFM [L/s]
ARI Net Cooling Capacity Btu [kW]
Net Sensible Capacity Btu [kW]
Net Latent Capacity Btu [kW]
Integrated Part Load Value3
Net System Power kW
4000/3750 [1888/1770]
118,000 [34.57]
88,800 [26.02]
29,200 [8.56]
12.9
5000/4400 [2360/2076]
148,000 [43.36]
107,600 [31.53]
40,400 [11.84]
11.9
5000/4400 [2360/2076]
148,000 [43.36]
107,600 [31.53]
40,400 [11.84]
11.9
10.49
13.39
13.39
Compressor
No./Type
2/Scroll
88
2/Scroll
88
2/Scroll
88
5
Outdoor Sound Rating (dB)
Outdoor Coil—Fin Type
Tube Type
Tube Size in. [mm] OD
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Louvered
Rifled
0.375 [9.5]
27 [2.51]
2 / 22 [9]
Louvered
MicroChannel
1 [25.4]
27 [2.51]
2 / 20 [8]
Louvered
MicroChannel
1 [25.4]
27 [2.51]
2 / 20 [8]
Indoor Coil—Fin Type
Tube Type
Louvered
Rifled
Louvered
Rifled
Louvered
Rifled
Tube Size in. [mm]
Face Area sq. ft. [sq. m]
Rows / FPI [FPcm]
Refrigerant Control
Drain Connection No./Size in. [mm]
0.375 [9.5]
13.5 [1.25]
3 / 18 [7]
TX Valves
1/1 [25.4]
0.375 [9.5]
13.5 [1.25]
4 / 15 [6]
TX Valves
1/1 [25.4]
0.375 [9.5]
13.5 [1.25]
4 / 15 [6]
TX Valves
1/1 [25.4]
Outdoor Fan—Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
CFM [L/s]
No. Motors/HP
Motor RPM
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/3 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/2 HP
1075
Propeller
2/24 [609.6]
Direct/1
8000 [3775]
2 at 1/2 HP
1075
Indoor Fan—Type
No. Used/Diameter in. [mm]
Drive Type/No. Speeds
No. Motors
FC Centrifugal
1/15x15 [381x381]
FC Centrifugal
1/15x15 [381x381]
FC Centrifugal
1/15x15 [381x381]
Belt/Variable
Belt/Variable
Belt/Variable
1
3
1
5
1
5
Motor HP
Motor RPM
Motor Frame Size
1725
56
1725
184
1725
184
Filter—Type
Furnished
Disposable
Yes
Disposable
Yes
Disposable
Yes
(No.) Size Recommended in. [mm x mm x mm] (6)2x18x18 [51x457x457] (6)2x18x18 [51x457x457]
(6)2x18x18 [51x457x457]
159.2/156 [4513/4423]
Refrigerant Charge Oz. [g]
Weights
172.8/180.8 [4899/5126]
159.2/156 [4513/4423]
Net Weights lbs. [kg]
Ship Weights lbs. [kg]
1120 [508]
1157 [525]
1238 [562]
1275 [578]
1238 [562]
1275 [578]
9
ELECTRICAL DATA - PCG
ELECTRICAL DATA - PCG SERIES
072A-3L
187-253
208/230
37/37
40/40
50/50
1
072A-4L
414-506
460
18
085A-3L
187-253
208/230
42/42
45/45
60/60
1
085A-4L
414-506
460
21
090A-3L
187-253
208/230
43/43
45/45
50/50
2
090A-4L
414-506
460
21
102A-3L
187-253
208/230
54/54
55/55
60/60
2
102A-4L
414-506
460
26
120A-3L
187-253
208/230
54/54
55/55
60/60
2
Unit Operating Voltage
Range
Volts
Minimum Circuit
Ampacity
Minimum Overcurrent
Protection Device Size
20
25
25
30
Maximum Overcurrent
Protection Device Size
25
30
25
30
1
1
2
2
No.
200/240
3
480
3
200/240
3
480
3
200/240
3
480
3
200/230
3
460
3
200/240
3
Volts
Phase
RPM
3450
5
3450
5
3450
6
3450
6
3450
3 1/4
13.1/13.1
83.1/83.1
3 1/4
13.1/13.1
83.1/83.1
2
3450
3 1/4
6.1
41
3450
3 3/4
16/16
91/91
3 3/4
16/16
91/91
2
3450
3 3/4
7.1
46
3450
4 1/4
16/16
110/110
4 1/4
16/16
110/110
2
HP, Compressor 1
Amps (RLA), Comp. 1
Amps (LRA), Comp. 1
HP, Compressor 2
Amps (RLA), Comp. 2
Amps (LRA), Comp. 2
No.
22.9/22.9
155/155
—
9.6
75
23.2/23.2
164/164
—
11.2
75
—
—
3 1/4
6.1
41
3 3/4
7.1
46
—
—
—
—
—
—
—
—
2
2
2
2
2
2
208/230
1
460
1
208/230
1
460
1
208/230
1
460
1
208/230
1
460
1
208/230
1
Volts
Phase
1/3
1/3
0.7
2.4
1
1/3
1/3
0.7
2.4
1
1/3
1/3
0.7
2.4
1
1/3
1/3
0.7
2.4
1
1/3
HP
2.4/2.4
4.7/4.7
1
1.2/1.2
4.7/4.7
1
1.2/1.2
4.7/4.7
1
1.2/1.2
4.7/4.7
1
1.2/1.2
4.7/4.7
1
Amps (FLA, each)
Amps (LRA, each)
No.
208/230
3
460
3
208/230
3
460
3
208/230
3
460
3
208/230
3
460
3
208/230
3
Volts
Phase
1 1/2
1 1/2
1.9
14.4
2
2
2
2
3
3
3
HP
5.6/5.62.8
28.8/28.8
8/8
4
8/8
4
13/13
74.5/74.5
7
13/13
74.5/74.5
Amps (FLA, each)
Amps (LRA, each)
56/56
28
56/56
28
38.1
10
ELECTRICAL DATA - PCG
ELECTRICAL DATA - PCG SERIES
120A-4L
414-506
460
28
150A-3L
150A-4L
414-506
460
36
Unit Operating Voltage
Range
187-253
208/230
71/71
75/75
90/90
2
Volts
Minimum Circuit
Ampacity
Minimum Overcurrent
Protection Device Size
30
40
Maximum Overcurrent
Protection Device Size
35
45
2
2
No.
Volts
480
3
208/230
3
460
3
Phase
3450
4 1/4
9.8
52
3450
3450
5 3/4
10.6
75
RPM
5 3/4
HP, Compressor 1
Amps (RLA), Comp. 1
Amps (LRA), Comp. 1
HP, Compressor 2
Amps (RLA), Comp. 2
Amps (LRA), Comp. 2
No.
22.4/22.4
149/149
5 1/4
4 1/4
9.8
52
5 1/4
9.7
62
19/19
123/123
2
2
2
460
1
208-230
1
460
1
Volts
Phase
1/3
0.7
2.4
1
1/2
1/2
0.75
3.1
1
HP
1.15/1.15
5.6/5.6
1
Amps (FLA, each)
Amps (LRA, each)
No.
460
3
208/230
3
460
3
Volts
Phase
3
5
5
HP
7
18.8/18.8
82.6/82.6
10
Amps (FLA, each)
Amps (LRA, each)
38.1
41.3
11
VI. INSTALLATION
FIGURE 6
OUTSIDE SLAB INSTALLATION, BASEMENT OR
CRAWL SPACE DISTRIBUTION SYSTEM
A. GENERAL
1. PRE-INSTALLATION CHECK-POINTS
Before attempting any installation, the following points
should be carefully considered:
Recommended
Location
Clearance
a. Structural strength of supporting members.
(rooftop installation)
48” [1219.2 mm]
18” [457.2 mm]
18” [457.2 mm]
18”* [457.2 mm]
60” [1524 mm]
A - Front
B - Condenser Coil
C - Duct Side
D - Evaporator End
E - Above
b. Clearances and provision for servicing.
c. Power supply and wiring.
d. Air duct connections.
*Without Economizer. 48” [1219.2 mm] With
*Economizer
e. Drain facilities and connections.
f. Location for minimum noise.
2. LOCATION
These units are designed for outdoor installations. They
can be mounted on a slab or rooftop. They are not to be
installed within any part of a structure such as an attic,
crawl space, closet, or any other place where condenser
air flow is restricted or other than outdoor ambient condi-
tions prevail. Since the application of the units is of the
outdoor type, it is important to consult your local code
authorities at the time the first installation is made.
B. OUTSIDE SLAB INSTALLATION (Typical outdoor slab
installations are shown in Figures 6 and 7.)
1. Select a location where external water drainage cannot
collect around the unit.
2. Provide a level concrete slab extending 3" [76.2 mm]
beyond all four sides of the unit. The slab should be suf-
ficient above grade to prevent ground water from enter-
ing the unit. IMPORTANT: To prevent transmission of
noise or vibration, slab should not be connected to
building structure.
A0741-03
3. The location of the unit should be such as to provide
proper access for inspection and servicing.
4. Locate unit where operating sounds will not disturb
owner or neighbors.
FIGURE 7
OUTSIDE SLAB INSTALLATION, CLOSET DISTRIBUTION
SYSTEM. SLAB FLOOR CONSTRUCTION
5. Locate unit so roof runoff water does not pour directly on
the unit. Provide gutter or other shielding at roof level.
Do not locate unit in an area where excessive snow drift-
ing may occur or accumulate.
C. CLEARANCES
The following minimum clearances must be observed for
proper unit performance and serviceability.
1. Provide 48" [1219.2 mm] minimum clearance at the front
of the unit. Provide 18" [457.2 mm] minimum clearance
at all other sides of the unit.
2. Provide 60" [1524 mm] minimum clearance between top
of unit and maximum 3 foot [.91 m] overhang.
3. Unit is design certified for application on combustible
flooring with 0" [0 mm] minimum clearance.
4. See Figure 6 for illustration of minimum installation-ser-
vice clearances.
A0739-03
12
D. ROOFTOP INSTALLATION
FIGURE 8
1. Before locating the unit on the roof, make sure that the
strength of the roof and beams is adequate at that point
to support the weight involved. This is very important
and user’s responsibility.
RIGGING FOR LIFTING
CORNER WEIGHTS BY PERCENTAGE
A
B
C
D
2. For rigging and roofcurb details, see Figures 8 and 9.
Use field-furnished spreaders.
33%
27%
17%
23%
3. For roofcurb assembly, see Roofcurb Installation Instruc-
tions.
4. If the roofcurb is not used, provisions for disposing of
condensate water runoff must be provided.
5. The unit should be placed on a solid and level roofcurb
or platform of adequate strength. See Figure 10.
6. The location of the unit on the roof should be such as to
provide proper access for inspection and servicing.
IMPORTANT: If unit will not be put into service immediately,
cover supply and return openings to prevent excessive con-
densation.
A
0
7
4
4
0
3
Illustration
A074403
A0744-03
FIGURE 9
ROOFCURB INSTALLATION
INSTALL GASKET
UNIT
ROOFCURB
NAILING STRIP
A0719-02
DUCT FLANGE NOT
TO EXCEED 1" [25.4 mm]
SUPPLY DUCT
CAULK ALL JOINTS
WATERTIGHT
A0719-03
RETURN DUCT
13
Balancing dampers should be provided for each branch duct in
the supply system. Ductwork should be properly supported
from the structure.
FIGURE 10
FLAT ROOFTOP INSTALLATION, ATTIC OR DROP CEILING
DISTRIBUTION SYSTEM. MOUNTED ON ROOFCURB.
CURB MUST BE LEVEL
When installing ductwork, consider the following items:
1. Noncombustible flexible connectors should be used
between ductwork and unit to reduce noise and vibration
transmission into the ductwork.
2. When auxiliary heaters are installed, use noncombustible
flexible connectors and clearance to combustible material
of 0" [0 mm] for the first 3 feet [.91 m] of discharge duct.
Clearance to unit top and side is 0" [0 mm].
VIII. FILTERS
This unit is provided with 6 - 2" x 18" x 18" [51mm x 457 mm x
457 mm] disposable filters. When replacing filters, ensure they
are inserted fully to the back to prevent bypass.
VIX.CONVERSION PROCEDURE
DOWNFLOW TO HORIZONTAL
1. Remove the screws and covers from the outside of the
supply and return sections.
2. Install the covers over the bottom supply and return open-
ings, painted side up inserting the leading flange under the
bracket provided. Place the back flange to the top of the
front bracket provided. See Figure 11.
A1112-03
VII. DUCTWORK
3. Secure the return and supply cover to the front bracket with
one (1) screw.
Ductwork should be fabricated by the installing contractor in
accordance with local codes and NFPA90A. Industry manuals
may be used as a guide when sizing and designing the duct
system - contact Air Conditioning Contractors of America, 1513
16th St. N.W., Washington, D.C. 20036.
FIGURE 11
COVER GASKET DETAIL
REAR PANEL
WARNING
!
DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT
RETURN DUCTWORK TO ANY OTHER HEAT PRODUCING
DEVICE SUCH AS A FIREPLACE INSERT, STOVE, ETC.
UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN
FIRE, CARBON MONOXIDE POISONING, EXPLOSION,
PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR
DEATH.
INSULATION
SUPPLY OR RETURN COVER
BACK
FRONT BRACKET
BRACKET
INSULATION
BASE PAN
The unit should be placed as close to the space to be air condi-
tioned as possible allowing clearance dimensions as indicated.
Ducts should be run as directly as possible to supply and
return outlets. Use of non-flammable waterproof flexible con-
nectors on both supply and return connections at the unit to
reduce noise transmission is recommended.
BASE RAIL
NOTE: COVER SLIDES
UNDER BACK
BRACKET FLANGE.
NOTE: COVER FITS ON
TOP OF FRONT
BRACKET FLANGE.
It is preferable to install the unit on the roof of the structure if
the registers or diffusers are located on the wall or in the ceil-
ing. A slab installation could be considered when the registers
are low on a wall or in the floor.
A0725-01
On ductwork exposed to outside air conditions of temperature
and humidity, use a minimum of 2" [50.8 mm] of insulation and
a vapor barrier. Distribution system in attic, furred space or
crawl space should be insulated with at least 2" [50.8 mm] of
insulation with vapor barrier. One-half to 1" [25.4 mm] thick-
ness of insulation is usually sufficient for ductwork inside the air
conditioned space.
14
X. CONDENSATE DRAIN
FIGURE 13
BRANCH CIRCUIT DISCONNECT LOCATION
The condensate drain connection of the evaporator is
1" [25.4 mm] nominal female pipe thread. IMPORTANT: Install
a condensate trap to ensure proper condensate drainage. See
Figure 12.
FIGURE 12
CONDENSATE DRAIN
3”
[76 mm]
3”
[76 mm]
e. Re-install the power entry panel & run conduit and the
proper size field wiring through the opening in the
panel.
XI. ELECTRICAL WIRING
Field wiring must comply with the National Electrical Code (CEC
in Canada) and local ordinances that may apply.
f. Connect field wiring to the power terminal block located
on the electric heater kit. Connect ground wire to the
adjacent ground lug.
A. POWER WIRING
g. Connect heater kit control plug to the receptacle on the
control wiring harness.
1. This unit incorporates single-point electrical connections
for the unit and electric heat accessory.
h. Close heater access door and secure with screws pre-
viously removed.
2. It is important that proper electrical power is available to
the unit. Voltage should not vary more than 10% from the
values marked on the unit rating plate. Phase voltages
must be balanced within 3%.
B. CONTROL WIRING (Class II)
1. Low voltage wiring should not be run in conduit with
power wiring.
3. Install a branch circuit disconnect within sight of the unit.
Use the unit rating plate or RLNL-B Electrical Data to
determine the required size.
2. Control wiring is routed through the 7/8" [22 mm] hole in
the unit side panel. See Figure 14. Use a minimum #18
AWG thermostat wire. For wire lengths exceeding 50'
[15.24 m] use #16 AWG thermostat wire. Connect the
control wiring to the low voltage terminal block located on
the unit integrated control. Route wires under the control
voltage shield. See Figure 14.
4. The branch circuit wire must be sized in accordance with
the National Electrical Code (C.E.C. in Canada) and local
ordinances that may apply using the minimum circuit
ampacity found on the unit rating plate.
5. Field-installed power wiring must be run through ground-
ed rain-tight conduit attached to the unit power entry
panel and connected as follows:
3. It is necessary that only approved thermostats be used.
Please contact your distributor for part number informa-
tion. See thermostat specification catalog for recommend-
ed thermostat.
UNITS WITHOUT ELECTRIC HEAT - Connect power
wiring to the power terminal block located on the left side
of the electric heat compartment. Connect the ground
wire to the adjacent ground lug.
4. Figure 15 shows representative low voltage connection
diagrams. Read your thermostat installation instructions
for any special requirements for your specific thermostat.
UNITS WITH FACTORY INSTALLED ELECTRIC HEAT -
Connect power wiring to the power terminal block located
on the electric heater kit. Connect the ground wire to the
adjacent ground lug. DO NOT connect aluminum wiring
directly to the electric heater terminal block. Wiring to the
unit contactors is factory-connected.
C. INTERNAL WIRING
1. A diagram of the internal wiring of this unit is located on
the inside of the control access panel and in this manual.
If any of the original wiring must be replaced, the wire
gauge and insulation must be the same as original wiring.
6. For field installation of an electric heater kit, follow the
instructions below. Refer to the information supplied with
the kit.
Transformer is factory-wired for 220 volts on 200/220 volt
models and must be changed for 200-volt applications.
See unit wiring diagram for 200-volt wiring.
a. Removing screws as required, open heater access
door and detach adjacent power entry panel.
D. GROUNDING
b. Remove wires to unit contactor (1L1, 1L2, 1L3) from
unit terminal block on the left side of the electric heat
compartment. Remove and discard the terminal block
and the adjacent ground lug.
WARNING
!
THE UNIT MUST BE PERMANENTLY GROUNDED. A
GROUNDING LUG IS PROVIDED IN THE ELECTRIC
HEAT ACCESS AREA FOR A GROUND WIRE. FAILURE
TO GROUND THIS UNIT CAN RESULT IN FIRE OR
ELECTRICAL SHOCK CAUSING PROPERTY DAMAGE,
SEVERE PERSONAL INJURY OR DEATH.
c. Remove the heater kit block-off panel and install the
heater kit in its place using 9 of the 12 screws previ-
ously removed.
d. Connect the unit contactor wires (1L1, 1L2, 1L3) to the
compressor fuse block on the heater kit.
15
FIGURE 14
GROUNDING MAY ALSO BE ACCOMPLISHED BY
GROUNDING THE POWER LINE CONDUIT TO THE
UNIT. MAKE SURE THE CONDUIT NUT LOCKING TEETH
HAVE PIERCED THE INSULATING PAINT FILM OF THE
SIDE PANEL.
XIII. CRANKCASE HEAT (OPTIONAL)
Crankcase heaters are standard on 6 ton and single stage 71⁄2.
Crankcase heat is not required on other models, but may be
desirable under certain conditions.
E. THERMOSTAT
The thermostat should be mounted on an inside wall about
five feet above the floor in a location where it will not be
affected by unconditioned air, sun, or drafts from open doors
or other sources. READ installation instructions in air condi-
tioner thermostat package CAREFULLY because each has
some different wiring requirements.
XIV. PRE-START CHECK
1. Is unit properly located and slightly slanted toward indoor
condensate drain?
2. Is ductwork insulated, weatherproofed, with proper spacing
to combustible materials?
3. Is air free to travel to and from outdoor coil? (See Figure 4.)
4. Is the wiring correct, tight, and according to unit wiring dia-
gram?
XII. INDOOR AIR FLOW DATA
Belt-drive blower models have motor sheaves set for proper
CFM at a typical external static. See Tables C through G for
blower performance.
5. Is unit grounded?
6. Are field supplied air filters in place and clean?
7. Do the outdoor fan and indoor blower turn freely without
rubbing, and are they tight on the motor shafts?
16
FIGURE 15
THERMOSTAT
CONNECTIONS
DIAGRAM
A0823-01
8. Turn thermostat system switch to “HEAT.” Unit compres-
sors should stop. Raise temperature setting to above room
temperature. Unit should run in heating mode and auxiliary
heaters, if installed, should come on.
9. Check the refrigerant charge using the instructions located
on unit charging chart. Replace service port caps. Service
port cores are for system access only and will leak if not
tightly capped.
10. Adjust discharge air grilles and balance system.
11. Check ducts for condensation and air leaks.
12. Check unit for tubing and sheet metal rattles.
13. Instruct the owner on operation and maintenance.
14. Leave “INSTALLATION” and ”USE AND CARE“ instruc-
tions with owner
XV. STARTUP
1. Turn thermostat to “OFF,” turn “on” power supply at discon-
nect switch.
2. Turn temperature setting as high as it will go.
3. Turn fan switch to “ON.”
4. Indoor blower should run. Be sure it is running in the right
direction.
5. Turn fan switch to “AUTO.” Turn system switch to “COOL”
and turn temperature setting below room temperature. Unit
should run in cooling mode.
6. Is outdoor fan operating correctly in the right direction?
7. Is compressor running correctly.
Record the following after the unit has run some time.
A. Operating Mode _______________________________
B. Discharge Pressures (High) _____________PSIG [kPa]
C. Vapor Pressure at Compressors (Low) _____PSIG [kPa]
D. Vapor Line Temperature at Compressors ______°F [C°].
E. Indoor Dry Bulb __________________________°F [C°].
F. Indoor Wet Bulb__________________________°F [C°].
G.Outdoor Dry Bulb_________________________°F [C°].
H. Outdoor Wet Bulb ________________________°F [C°].
I. Voltage at Contactor ________________________Volts
J. Current at Contactors ______________________ Amps
K. Model Number_________________________________
L. Serial Number _________________________________
M.Location______________________________________
N. Owner _______________________________________
O.Date_________________________________________
17
XVI. OPERATION
XVII. MISCELLANEOUS
REPLACEMENT PARTS
COOLING MODE
Contact your local distributor for a complete parts list.
.
With thermostat in the cool mode, fan auto and the room tem-
perature higher than the thermostat setting:
A. Indoor blower contactor is energized through thermostat
contact (G).
B. Compressor contactors are energized through thermostat
contacts (Y1) & (Y2) and high pressure controls.
C. Economizer enthalpy control (if installed) controls operation
of first-stage cooling and positions fresh air damper to main-
tain mixed air temperature. Second-stage cooling operates
normally as required by second stage of thermostats.
D. The system will continue in cooling operation as long as all
safety controls are closed, until the thermostat is satisfied.
HEATING MODE
With the thermostat in heat mode, fan on auto, and the room
temperature lower than the thermostat setting, the Indoor
blower contactor is energized through thermostat contact (G).
WARNING
!
ONLY ELECTRIC HEATER KITS SUPPLIED BY THIS MAN-
UFACTURER AS DESCRIBED IN THIS PUBLICATION HAVE
BEEN DESIGNED, TESTED, AND EVALUATED FOR USE
WITH THIS UNIT. USE OF ANY OTHER MANUFACTURED
ELECTRIC HEATERS INSTALLED WITHIN THIS UNIT MAY
CAUSE HAZARDOUS CONDITIONS RESULTING IN PROP-
ERTY DAMAGE, FIRE, BODILY INJURY OR DEATH.
In the heating mode, the thermostat will energize one or more
supplementary heaters.
18
19
20
21
22
23
XIX. HEATER KIT CHARACTERISTICS
TABLE A
AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION (PCG MODELS)
208/240V – 3 PHASE
MAX. FUSE OR
CKT. BKR. SIZE
(CKT. BKR. MUST
BE HACR TYPE
FOR USA)
UNIT MODEL
NUMBER
PCG-
HEATER KIT
MODEL NO.
RXJJ-
HEATER kW
@ 208/240 V/
3 PHASE
UNIT MIN. CKT.
AMPACITY
HEATER KIT FLA
072A-3L
NONE
CC10C
CC15C
CC20C
CC30C
—
7.2/9.6
10.8/14.4
14.4/19.2
21.6/28.8
—
37/37
37/37
45/51
57/65
82/94
50/50
50/50
50/60
60/70
90/100
20.0/23.1
30.0/34.6
40.0/46.2
60.0/69.3
085A-4L
NONE
CC10C
CC15C
CC20C
CC30C
CC40C
—
7.2/9.6
10.8/14.4
14.4/19.2
21.6/28.8
28.8/38.4
—
42/42
42/42
48/54
60/68
85/97
60/60
60/60
60/60
60/70
90/100
125/150
20.0/23.1
30.0/34.6
40.0/46.2
60.0/69.3
80.1/92.4
111/126
090A-4L
102A-4L
NONE
CC10C
CC15C
CC20C
CC30C
CC40C
—
7.2/9.6
10.8/14.4
14.4/19.2
21.6/28.8
28.8/38.4
—
43/43
43/43
48/54
60/68
85/97
50/50
50/50
50/60
60/70
90/100
125/150
20.0/23.1
30.0/34.6
40.0/46.2
60.0/69.3
80.1/92.4
111/126
NONE
CC10C
CC15C
CC20C
CC30C
CC40C
—
7.2/9.6
10.8/14.4
14.4/19.2
21.6/28.8
28.8/38.4
—
54/54
54/54
54/60
67/74
92/103
117/132
60/60
60/60
60/60
70/80
100/110
125/150
20.0/23.1
30.0/34.6
40.0/46.2
60.0/69.3
80.1/92.4
24
HEATER KIT CHARACTERISTICS (continued)
TABLE B
AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION (PCG MODELS)
208/240V – 3 PHASE
MAX. FUSE OR
CKT. BKR. SIZE
(CKT. BKR. MUST
BE HACR TYPE
FOR USA)
UNIT MODEL
NUMBER
PCG-
HEATER KIT
MODEL NO.
RXJJ-
HEATER kW
@ 208/240 V
UNIT MIN. CKT.
AMPACITY
HEATER KIT FLA
120A-4L
NONE
CC10C
CC15C
CC20C
CC30C
CC40C
CC50C
—
7.2/9.6
—
54/54
54/54
54/60
60/60
60/60
60/60
20.0/23.1
30.0/34.6
40.0/46.2
60.0/69.3
80.1/92.4
100.1/115.5
10.8/14.4
14.4/19.2
21.6/28.8
28.8/38.4
36.1/48.0
67/74
70/80
92/103
117/132
142/161
100/110
125/150
150/175
150A-4L
NONE
CC10C
CC15C
CC20C
CC30C
CC40C
CC50C
—
7.2/9.6
—
71/71
71/71
71/71
90/90
90/90
90/90
20.0/23.1
30.0/34.6
40.0/46.2
60.0/69.3
80.1/92.4
100.1/115.5
10.8/14.4
14.4/19.2
21.6/28.8
28.8/38.4
36.1/48.0
74/82
90/90
99/111
124/139
149/168
100/125
125/150
150/175
072A-4L
085A-4L
NONE
CC10D
CC15D
CC20D
CC30D
—
9.6
14.4
19.2
28.8
—
18
18
26
33
47
25
25
30
35
50
11.5
17.3
23.1
34.6
NONE
CC10D
CC15D
CC20D
CC30D
CC40D
—
9.6
14.4
19.2
28.8
38.4
—
21
21
27
34
49
63
30
30
30
35
50
70
11.5
17.3
23.1
34.6
46.2
25
HEATER KIT CHARACTERISTICS (continued)
TABLE C
AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION (PCG MODELS)
480V – 3 PHASE
MAX. FUSE OR
CKT. BKR. SIZE
(CKT. BKR. MUST
BE HACR TYPE
FOR USA)
UNIT MODEL
NUMBER
PCG-
HEATER KIT
MODEL NO.
RXJJ-
HEATER kW
@ 480 V
UNIT MIN. CKT.
AMPACITY
HEATER KIT FLA
090A-4L
102A-4L
120A-4L
NONE
CC10D
CC15D
CC20D
CC30D
CC40D
—
9.6
14.4
19.2
28.8
38.4
—
21
21
27
34
49
63
25
25
30
35
50
70
11.5
17.3
23.1
34.6
46.2
NONE
CC10C
CC15D
CC20D
CC30D
CC40D
—
9.6
14.4
19.2
28.8
38.4
—
26
6
31
38
52
67
30
30
35
40
60
70
11.5
17.3
23.1
34.6
46.2
NONE
CC10D
CC15D
CC20D
CC30D
CC40D
CC50D
—
9.6
—
28
28
31
38
52
67
81
35
35
35
40
60
70
90
11.5
17.3
23.1
34.6
46.2
57.7
14.4
19.2
28.8
38.4
48.0
150A-4L
NONE
CC10D
CC15D
CC20D
CC30D
CC40D
CC50D
—
9.6
—
36
36
36
42
56
71
85
45
45
45
45
60
80
90
11.5
17.3
23.1
34.6
46.2
57.7
14.4
19.2
28.8
38.4
48.0
26
XX. TROUBLE SHOOTING CHART
WARNING
!
DISCONNECT ALL POWER TO UNIT BEFORE SERVICING. CONTACTOR MAY BREAK ONLY ONE SIDE. FAILURE
TO SHUT OFF POWER CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.
SYMPTOM
POSSIBLE CAUSE
REMEDY
Unit will not run
•
Power off or loose electrical connection
•
Check for correct voltage at compressor contactor in control
box
•
•
Thermostat out of calibration-set too high
Defective contactor
•
•
Reset
Check for 24 volts at contactor coil - replace if contacts are
open
•
•
•
•
Blown fuses
Transformer defective
High pressure control open (if provided)
Interconnecting low voltage wiring damaged
•
•
•
•
Replace fuses
Check wiring-replace transformer
Reset-also see high head pressure remedy-
Replace thermostat wiring
Condenser fan runs, compressor
doesn’t
•
•
Run capacitor defective (single phase only)
Loose connection
•
•
Replace
Check for correct voltage at compressor -
check & tighten all connections
•
•
Compressor stuck, grounded or open motor winding
open internal overload.
Low voltage condition
•
Wait at least 2 hours for overload to reset.
If still open, replace the compressor.
At compressor terminals, voltage must be within 10% of rating
plate volts when unit is operating.
Insufficient cooling
•
•
•
•
•
Improperly sized unit
Improper airflow
Incorrect refrigerant charge
Air, non-condensibles or moisture in system
Incorrect voltage
•
•
•
•
•
Recalculate load
Check - should be approximately 400 CFM [188.78 L/s] per ton.
Charge per procedure attached to unit service panel.
Recover refrigerant, evacuate & recharge, add filter drier
At compressor terminals, voltage must be within 10% of rating
plate volts when unit is operating.
Compressor short cycles
•
Incorrect voltage
•
At compressor terminals, voltage must be 10% of
nameplate marking when unit is operating.
Replace - check for correct voltage
Add refrigerant
•
•
Defective overload protector
Refrigerant undercharge
•
•
Registers sweat
•
Low evaporator airflow
•
Increase speed of blower or reduce restriction - replace air
filter
High head-low vapor pressures
•
•
•
•
Restriction in liquid line, expansion device or filter drier
Flow check piston size too small
Incorrect capillary tubes
•
•
•
•
Remove or replace defective component
Change to correct size piston
Change coil assembly
TXV does not open
Replace TXV
High head-high or normal vapor
pressure - Cooling mode
•
•
•
•
Dirty condenser coil
Refrigerant overcharge
Condenser fan not running
Air or non-condensibles in system
•
•
•
•
Clean coil
Correct system charge
Repair or replace
Recover refrigerant, evacuate & recharge
High head-high or normal vapor
pressure - Heating mode
•
•
•
•
Low air flow - condenser coil
Refrigerant overcharge
Air or non-condensibles in system
Dirty condenser coil
•
•
•
•
Check filters - correct to speed
Correct system charge
Recover refrigerant, evacuate & recharge
Check filter - clean coil
Low head-high vapor pressures
•
•
Defective Compressor valves
Low evaporator airflow
•
•
Replace compressor
Low vapor - cool compressor -
iced evaporator coil
Increase speed of blower or reduce restriction - replace air
filter
•
•
•
Operating below 65°F outdoors
Moisture in system
TXV limiting refrigerant flow
•
•
•
Add Low Ambient Kit
Recover refrigerant - evacuate & recharge - add filter drier
Replace TXV
High vapor pressure
•
•
Excessive load
Defective compressor
•
•
Recheck load calculation
Replace
Fluctuating head & vapor
pressures
•
•
•
TXV hunting
•
•
•
Check TXV bulb clamp - check air distribution on coil - replace
TXV
Recover refrigerant, evacuate & recharge
Air or non-condensibles in system
Air or non-condensibles in system
Gurgle or pulsing noise at
Recover refrigerant, evacuate & recharge
expansion device or liquid line
27
XXI. WIRING DIAGRAMS
WIRING DIAGRAM
072/085
208-230/460/575V 3 PH, 60 HZ.
ROOFTOP
28
WIRING SCHEMATIC
072/085
PACKAGED A/C
208-230, 3PH, 60HZ./460, 3PH, 60HZ.
575V, 3PH, 60HZ.
29
WIRING DIAGRAM
090/102/120/150
208-230/460/575V 3 PH, 60 HZ.
ROOFTOP
30
WIRING SCHEMATIC
090/102/120/150
PACKAGED A/C
208-230, 3PH, 60HZ./460, 3PH, 60HZ.
575V, 3PH, 60HZ.
31
XXII. CHARGING CHARTS
PCG SYSTEM CHARGE CHARTS
FIGURE 16
SYSTEM CHARGE CHART - REFRIGERANT 410A
-072, CIRCUIT 1
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160
165
100
105
110
115
120
125
130
135
140
145
150
155
92-102259-06-00
32
PCG SYSTEM CHARGE CHARTS
FIGURE 17
SYSTEM CHARGE CHART - REFRIGERANT 410A
-085, CIRCUIT 1
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160
165
100
105
110
115
120
125
130
135
140
145
150
155
92-102259-07-00
33
PCG SYSTEM CHARGE CHARTS
FIGURE 18
SYSTEM CHARGE CHART - REFRIGERANT 410A
-090, CIRCUITS 1 & 2
BOTH COMPRESSORS MUST BE OPERATING BEFORE CHECKING
REFRIGERANT CHARGE.
RETURN AIR TEMPERATURE MUST BE WITHIN COMFORT CONDITIONS
BEFORE FINAL REFRIGERANT CHECK!
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
-B090, CIRCUIT 1
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
-B090, CIRCUIT 2
92-102259-08-00
34
PCG SYSTEM CHARGE CHARTS
FIGURE 19
SYSTEM CHARGE CHART - REFRIGERANT 410A
-102, CIRCUITS 1 & 2
BOTH COMPRESSORS MUST BE OPERATING BEFORE CHECKING
REFRIGERANT CHARGE.
RETURN AIR TEMPERATURE MUST BE WITHIN COMFORT CONDITIONS
BEFORE FINAL REFRIGERANT CHECK!
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
-B102, CIRCUIT 1
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
-B102, CIRCUIT 2
92-102259-09-00
35
PCG SYSTEM CHARGE CHARTS
FIGURE 20
SYSTEM CHARGE CHART - REFRIGERANT 410A
-120, CIRCUITS 1 & 2
BOTH COMPRESSORS MUST BE OPERATING BEFORE CHECKING
REFRIGERANT CHARGE.
RETURN AIR TEMPERATURE MUST BE WITHIN COMFORT CONDITIONS
BEFORE FINAL REFRIGERANT CHECK!
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
-B120, CIRCUIT 1
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
92-102259-10-00
-B120, CIRCUIT 2
36
PCG SYSTEM CHARGE CHARTS
FIGURE 21
SYSTEM CHARGE CHART - REFRIGERANT 410A
-150, CIRCUITS 1 & 2
BOTH COMPRESSORS MUST BE OPERATING BEFORE CHECKING
REFRIGERANT CHARGE.
RETURN AIR TEMPERATURE MUST BE WITHIN COMFORT CONDITIONS
BEFORE FINAL REFRIGERANT CHECK!
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
-B150, CIRCUIT 1
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
115
105
95
85
75
65
55
160 165
100 105 110 115 120 125 130 135 140 145 150 155
92-102259-11-00
-B150, CIRCUIT 2
37
38
39
40
CM 1108
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