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Full Cool Flow and Pressure Diagram
Flow and Pressure Diagram
CRR-40
Full Cool
1.
D3DS Compressor
Compressor operation has a variable delay on initial start-up. A
sequence start of the compressor occurs when the compressor
has been OFF for more than 18 hours.
4.
High Pressure Cutout Switch (HPCO)
Is a normally CLOSED switch.
It OPENS at 2240 +/- 70 kPa, 22.4 +/- 0.7 bar, 325 +/- 10 psig.
It CLOSES at 1590 +/- 70 kPa, 15.9 +/- 0.7 bar, 230 +/- 10 psig.
9.
High Pressure Relief (Fusible Plug)
BLOWS at 100 C (212 F).
16. Liquid Line Solenoid (LLS)
Is a normally CLOSED solenoid.
It OPENS when energized, when the compressor operates.
22. Electric Heaters
During the DEFROST mode, the electric heaters are pulsed ON
and OFF. The compressor, condenser fan and evaporator fans
are OFF.
During the HEAT mode, the electric heaters are pulsed ON
and OFF. The compressor and condenser fan are OFF. The
evaporator fans continue to operate (evaporator fan speed is
determined by the setpoint and economy mode setting).
28. Controller
Microprocessor with digital thermostat, thermometer and fault
indicator monitor.
High pressure gas
High pressure liquid
Low pressure gas
Low pressure liquid
Condensing high pressure gas
Low pressure vaporizing liquid
Liquid refrigerant injection
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...