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Specifications
24
Refrigeration System
Compressor Model No.:
D3DST-075E-TFD, Semi-hermetic Reciprocating with
Copeland Discus® Valve Design
Refrigerant Charge:
Standard Receiver Tank
4.7 Kg (10.35 lb) R-134a
Water-Cooled Condenser-Receiver Tank
5.2 Kg (11.5 lb) R-134a
Compressor Oil Capacity*
4.6 liter, 1.22 gal. (155.5 oz.)
Compressor Oil Type
Polyol Ester Based Type** (required) Refer to Tool Catalog
High Pressure Cutout Switch:
Cutout 2240 ± 70 kPa, 22.40 ± 0.70 bar, 325 ± 10 psig
Cutin 1590 ± 70 kPa, 15.90 ± 0.70 bar, 230 ± 10 psig
Liquid Injection Control:
KVQ Setting Less Than 5 C (8.9 F) Below
the Return Air Temperature.
Liquid injection turns ON 6 seconds every minute regardless
of compressor discharge temperature.
Liquid injection activated at compressor discharge
temperatures between 115 C and 125 C (239 F and 257 F),
depending on KVQ valve setting.
Compressor Discharge Temperature Control *** Liquid injection valve opens continuously during Power Limit
and Modulation Cool modes
Liquid Injection Valve (Compressor):
Voltage 24 Vac
Cold Resistance 5.6 ohms
Evaporator Pressure Regulator (KVQ Valve):
EPR Circuit Voltage 24 Vdc
EPR Circuit Resistance 22 ohms
EPRTH (Thermistor) Circuit Resistance 22,000 ohms at 20 C (68 F)
*When the compressor is removed from the unit, oil level should be noted or the oil removed from the compressor should be
measured so that the same amount of oil can be maintained in the replacement compressor.
**DO NOT use or add standard synthetic or mineral oils to the refrigeration system. If Ester based oil becomes contaminated
with moisture or with standard oils, dispose of properly — DO NOT USE!
***Active during Chill Mode only (setpoints at -9.9 C [10.1 F] and above). Controller pulses the liquid injection valve open and
closed on a 1 minute duty cycle. For example, the valve may be energized for 15 seconds and de-energized for 45 seconds.
Number of seconds valve is open (energized) is based on the compressor discharge temperature and the temperature
control algorithm.
Summary of Contents for CRR-40 119
Page 4: ......
Page 16: ...Safety Precautions 16...
Page 18: ...Service Guide 18...
Page 20: ...Model Features 20...
Page 32: ...Specifications 32...
Page 120: ...MP 3000a Controller 120...
Page 160: ...Wiring and Schematic Diagrams Index 160...
Page 161: ...161 MPC2000 Wiring Schematic...
Page 162: ...162 MPC2000 High Voltage Wiring Diagram...
Page 163: ...163 MPC2000 Low Voltage Wiring Diagram...
Page 164: ...164 MPC2000 WCC Wiring Schematic...