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Compressors
The majority of the Heatcraft Parallel systems incorporate the
Copeland compressor. Other brand compressors are available
upon customer request. The compressors are solid mounted
to a base frame or mounted on the refrigerant receiver. All
reciprocating compressors incorporate oil floats. Crankcase
heaters will be installed and wired. Cylinder head cooling fans
will be installed on all low temperature reciprocating systems
or as directed by the specific compressor manufacturer. A high
pressure cutout and oil failure control are installed and wired
for each compressor.
Copeland Compressors
Table 8. 3D/4D/6D Solid State Modules
Model
Number
3D-FSM
4D/6D
Table 9. Typical Voltage Ranges
Voltage
Code
Rating
B
230-1
C
208/230-3
D
460-3
E
575-3
K
208/230/460-3
M
-
N
230/460-3
U
200-3
Refer to voltage rating of specific models
Table 10. Unloader Factors
Model
3D
Performance
CAPACITY
4D
POWER
AMPS
CAPACITY
6D
POWER
AMPS
Multiply compressor rating data by above factors when used with blocked suction unloading
Refer to Copeland AE 17-1287 for Demand Cooling Restrictions on unloading
20
Control Voltage
Copeland
Kit
Number
115 - 230 Volts
998-0524-00
60 Hertz Rating
Min.
Max.
207
253
187
253
414
506
518
633
187
506
-
207
506
180
220
See Copeland Application Bulletin Number AE 21-1278
Moduload - Capacity Control for 3D Compressors
Full Load
HT
MT
LT
1.00
1.00
1.00
1.01
1.03
1.02
1.01
1.03
1.02
1.00
1.00
1.00
1.01
1.03
1.02
1.03
1.04
1.02
Installation and Operations Manual
Many compressors are available with unloading for capacity
control. The unloading of a compressor adds many capacity
steps to those normally available to an electronic controller.
Usually, the more steps available the better the load can be
matched.
Copeland
Number
071-0524-00
50 Hertz Rating
Rating
-
200/220-3
380/420-3
500-3
200/380/400-3
-
380/420-3
200/400-3
-
Factors
One Bank
Unloading
HT
MT
.50
.50
.56
.56
.60
.60
.70
.70
.70
.71
.75
.77
T.I.
Number
31AA-1600E
Min.
Max.
-
-
180
240
342
462
450
550
180
440
342
462
180
440
-
-
Two Bank
Unloading
LT
HT
MT
.50
-
-
.56
-
-
.74
-
-
.70
.36
.36
.72
.40
.42
.84
.55
.60
Part # 25000102
LT
-
-
-
.36
.43
.72
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