Thermo King SPECTRUM TS Series User Manual

Unit Description
44
Figure 15: Zone 1 Heat and Zone 2 Defrost
Zone 1 Heat and Zone 2 Defrost
The CIS is closed so high pressure refrigerant
vapor leaves the compressor and flows through
the DPR to Zone 1 and Zone 2 hot gas lines and
through HGS1 and HGS2 into both evaporators.
There, the refrigerant heats both evaporators and
condenses into high pressure liquid. The
refrigerant flows through the open suction line
solenoids and back to accumulator. The fans stay
off in the Zone 2 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 (LLS1)-Open
2F. Zone 1 Liquid Return Check Valve
(LRCV1)-Closed
3F. Zone 1 Suction Line Check Valve
(SLVC1)-Open
4F. Zone 1 Suction Line Solenoid (SLS1)-Open
5F. Zone 1 Hot Gas Solenoid (HGS1)-Open
Zone 2 Evaporator
1R. Zone 2 Liquid Line Solenoid (LLS2)-Open
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)-Open
Condensing Unit
6. Condenser Inlet Solenoid 9CIS)-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