Heatcraft Refrigeration Products PARALLEL COMPRESSOR SYSTEMS 25000102 - Manual (Page 20)

20 Part # 25000102
Installation and Operations Manual
Voltage
Code
60 Hertz Rating 50 Hertz Rating
Rating Min. Max. Rating Min. Max.
B 230-1 207 253 - - -
C 208/230-3 187 253 200/220-3 180 240
D 460-3 414 506 380/420-3 342 462
E 575-3 518 633 500-3 450 550
K 208/230/460-3 187 506 200/380/400-3 180 440
M - - - 380/420-3 342 462
N 230/460-3 207 506 200/400-3 180 440
U 200-3 180 220 - - -
Model Factors
3D
See Copeland Application Bulletin Number AE 21-1278
Moduload - Capacity Control for 3D Compressors
Full Load
One Bank
Unloading
Two Bank
Unloading
Performance HT MT LT HT MT LT HT MT LT
4D
CAPACITY
POWER
AMPS
1.00
1.01
1.01
1.00
1.03
1.03
1.00
1.02
1.02
.50
.56
.60
.50
.56
.60
.50
.56
.74
-
-
-
-
-
-
-
-
-
6D
CAPACITY
POWER
AMPS
1.00
1.01
1.03
1.00
1.03
1.04
1.00
1.02
1.02
.70
.70
.75
.70
.71
.77
.70
.72
.84
.36
.40
.55
.36
.42
.60
.36
.43
.72
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.
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 Compressors
Table 8. 3D/4D/6D Solid State Modules
Control Voltage
Model
Number
Copeland
Kit
Number
Copeland
Number
T.I.
Number
115 - 230 Volts
3D-FSM
4D/6D
998-0524-00 071-0524-00 31AA-1600E
Table 9. Typical Voltage Ranges
Table 10. Unloader Factors
Refer to voltage rating of specific models
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