Thermo King SPECTRUM TS Series User Manual

Unit Description
45
Figure 16: Zone 1 Defrost and Zone 2 Null
Zone 1 Defrost and Zone 2 Null
The CIS is closed so high pressure refrigerant
vapor leaves the compressor and flows through
the DPR to the Zone 1 hot gas line and through
HGS1 into the Zone 1 evaporator. There, the
refrigerant heats the evaporator and condenses
into high pressure liquid. The refrigerant flows
through the open suction line solenoid and back to
accumulator. The fans stay off in the Zone 1
evaporator, allowing the coil to defrost without
warming the load.
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
Zone 1 Evaporator
1F. Zone 1 Liquid Line Solenoid (LLS)-Open
2F. Zone 1 Liquid Return Check Valve
(LRCV)-Closed
3F. Zone 1 Suction Line Check Valve
(SLCV)-Open
4F. Zone 1 Suction Line SOlenoid (SLS)-Open
5F. Zone 1 Hot Gas Solenoid (HGS)-Open
Zone 2 Evaporator
1R. Zone 2 Liquid Line Solenoid (LLS2)-Closed
2R. Zone 2 Liquid Return Check Valve
(LRCV2)-Closed
3R. Zone 2 Suction Line Check Valve
(SLCV2)-Open
4R. Zone 2 Suction Line Solenoid (SLS2)-Open
5R. Zone 2 Hot Gas Solenoid (HGS2)-Closed
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
1F
2F
4F
3F
9
6
7
8
3R
5R
4R
2R
1R
5F
10

Thermo King SPECTRUM TS Series Specifications

General

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