Thermo King SPECTRUM TS Series User Manual

Unit Description
49
Zone 1 Cool, Zone 2 Heat and Zone
3 Defrost
The CIS is closed so high pressure refrigerant
vapor leaves the compressor and flows through
the DPR to the Zone 3 hot gas line and the open
HGS3 into the Zone 3 evaporator. There, the
refrigerant heats the Zone 3 evaporator and
condenses into high pressure liquid. The liquid
refrigerant flows through the open SLS2, the
second suction line, SLCV2 and the
accumulator.The fans stay off in the Zone
3evaporator, allowing the coil to defrost without
warming the load.
Little or no refrigerant flows through the Zone 1
and Zone 2 evaporators because there is a higher
resistance to flow through those evaporators than
through the Zone 3 evaporator.
In the condensing unit, the CIS valve closes and
opens to regulate head pressure. The purge valve
is opened continuously during defrost to drain the
condenser coil.
Zone 1 Evaporator
1F. Zone 1 Liquid Line Solenoid (LLS1)-Open
2F. Zone 1 Liquid Return Check Valve
(LRCV1)-Closed
3F. Zone 1 Suction Line Check Valve
(SLCV1)-Open
4F. Zone 1 Suction Line Solenoid (SLS1)-Open
5F. Zone 1 Hot Gas Solenoid (HGS1)-Closed
Zone 2 Evaporator
1C. Zone 2 Liquid Line Solenoid (LLS2)-Open
2C. Zone 2 Liquid Return Check Valve
(LRCV2)-Open
3C. Zone 2 Suction Line Check Valve
(SLCV2)-Closed
4C. Zone 2 Suction Line Solenoid (SLS2)-Closed
5C. Zone 2 Hot Gas Solenoid (HGS2)-Open
Zone 3 Evaporator
1R. Zone 2 Liquid Line Solenoid (LLS3)-Open
2R. Zone 2 Liquid Return Check Valve
(LRCV3)-Closed
3R. Zone 2 Suction Line Check Valve (SLCV3)
-Open
4R. ZOne 2 Suction Line Solenoid (SLS3)-Open
5R. Zone 2 Hot Gas Solenoid (HGS3)-Open
Condensing Unit
6. Condenser Inlet Solenoid (CIS)-Closed/Open
(Pressure Dependent)
7. Condenser Inlet Check Valve
(CICV)-Closed/Open
8.Condenser Check Valve (CCV)-Closed
9. Purge Valve (PV)-Open
10. Purge Check Valve (PCV)-Open

Thermo King SPECTRUM TS Series Specifications

General

Brand	Thermo King
Model	SPECTRUM TS Series
Category	Industrial Equipment
Language	English