Unit Description
5-20
Solenoid and Check Valves
1. Condenser Inlet Solenoid (CIS)-Closed/ Energized
2. Condenser Check Valve-Closed
3. Receiver Tank Pressure Check Valve-Open
4. Purge Valve (PV)-Open/Energized
5. Purge Check Valve-Closed
6. Hot Gas Solenoid (HGS)-Open/Energized
Heat/Defrost Mode T-500R/T-Dairy
UT-Series
The refrigerant flow in Heat/Defrost Mode is a conventional hot gas heat cycle. The CIS is closed and the HGS is open so high
pressure refrigerant vapor leaves the compressor and flows through the DPR (which maintains a minimum discharge pressure)
to the hot has line. The refrigerant flows through the hot gas line and the drain pan heater to the evaporator. There, the refrigerant
heats the evaporator and returns to the compressor through the heat exchanger, and accumulator.
Solenoid and Check Valves
1. Condenser Inlet Solenoid (CIS)-Closed/ Energized
2. Liquid Injection Solenoid (LIS)-Closed/ De-energized but the microprocessor will open it if necessary to control compressor
temperature.
3. Condenser Check Valve-Closed
4. Purge Valve (PV)-Open/Energized
5. Hot Gas Solenoid (HGS)-Open/Energized
1
2
3
6
4
5
Содержание T-1000R
Страница 14: ...Safety Precautions 2 6 Warning Decals 2e24151g0 ...
Страница 18: ...Specifications 3 4 ENGINE CLUTCH Engagement 600 100 RPM Dynamic Torque 66 fT lb 89 5 N m minimum 1600 RPM ...
Страница 34: ...Maintenance Inspection Schedule 4 10 ...
Страница 57: ...Unit Description 5 23 Purge Mode UT Series 1 3 4 5 2 ...
Страница 67: ...Unit Description 5 33 Zone 1 Cool and Zone 2 Cool UT SPECTRUM Units ...
Страница 69: ...Unit Description 5 35 Purge Mode UT SPECTRUM Units ...
Страница 71: ...Unit Description 5 37 Zone 1 Cool and Zone 2 Heat UT SPECTRUM Units ...
Страница 72: ...Unit Description 5 38 ...
Страница 74: ...Diesel Electric Menu 6 28 Adjust Brightness 6 29 Time 6 30 ...
Страница 120: ...Operating Instructions Standard HMI 7 18 ...
Страница 152: ...Engine Maintenance 9 14 T Series Fuel and Oil System Components TK 376 ...
Страница 154: ...Engine Maintenance 9 16 T Series Fuel and Oil System Components TK 270 ...
Страница 156: ...Engine Maintenance 9 18 UT Series Fuel System Components AMA768 ...
Страница 172: ...Engine Maintenance 9 34 T Series Engine Mounting Components for 2 Cylinder Engine ...
Страница 184: ...Engine Maintenance 9 46 ...
Страница 238: ...Refrigeration Maintenance 10 54 ...
Страница 246: ...Clutch Maintenance 11 8 ...
Страница 258: ...Structural Maintenance 12 12 ...
Страница 264: ...Mechanical Diagnosis 13 6 ...
Страница 265: ...14 Electric Standby Diagnosis ...
Страница 268: ...Electric Standby Diagnosis 14 4 ...
Страница 269: ...15 Refrigeration System Diagnosis ...
Страница 272: ...Refrigeration System Diagnosis 15 4 ...
Страница 280: ...Remote Evaporators 16 8 ...
Страница 282: ...Wiring Diagrams and Wiring Schematics 17 2 ...