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Multi-Temperature Refrigeration System Diagrams 16-2

SL TCI, OR SPECTRUM

Zone 1* on Cool and Zone 2** on Cool

Z-1 Zone 1 Evaporator* (Host Unit): COOL

1. Liquid Line Solenoid (LLS) – Open

2. Liquid Return Check Valve (LRCV) – Closed

3. Suction Line Check Valve (SLCV) – Open

4. Suction Line Solenoid (SLS) – Open

5. Hot Gas Solenoid (HGS) – Closed

6. Condenser Inlet Solenoid (CIS) – Open

7. Condenser Inlet Check Valve (CICV) – Open

8. Receiver Tank Pressure Solenoid (RTPS) –

Closed

9. Condenser Check Valve (CCV) – Open

10. Bypass Hand Valve

11. Purge Valve (PV) – Closed

12. Purge Check Valve (PCV) – Closed

Z-2 Zone 2 Evaporator**: COOL

1C. Zone 2 (or Rear) Liquid Line Solenoid (LLS2 or

RLLS) – Open

2C. Zone 2 (or Rear) Liquid Return Check Valve

(LRCV2 or RLRCV) – Closed

3C. Zone 2 (or Rear) Suction Line Check Valve

(SLCV2 or RSLCV) – Open

4C. Zone 2 (or Rear) Suction Line Solenoid (SLS2 or

RSLS) – Open

5C. Zone 2 (or Rear) Hot Gas Solenoid (HGS2 or

RHGS) – Closed

*Also called Front Evaporator

**Also called Rear Evaporator

Thermo King SLXi Spectrum Maintenance Manual

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