Thermo King SLXi Spectrum, Maintenance Manual

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Multi-Temperature Refrigeration System Diagrams 16-6
SLX, SLXe, SLXi SPECTRUM
Zone 1* on Cool, Zone 2** on Heat
Note: SLX Spectrum ETV and SLXe/SLXi Spectrum modes are the same as the SLX Spectrum with the exception of host
only operation, then Modulation control is activated for host zone.
Note: Early generation of SLX Spectrum units (until 04-2012) are fitted with MTV (not ETV). Therefore, please refer to
pages 15-2 and 15-3 for these Host unit diagrams
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) – Closed****
7. Condenser Inlet Check Valve (CICV) – Closed
8. Receiver Tank Pressure Solenoid (RTPS) –
Open****
9. Condenser Check Valve (CCV) – Closed
10. Bypass Hand Valve
11. Purge Valve (PV) – Open****
12. Purge Check Valve (PCV) – Open
13. Hot GAs Bypass solenoid (HGBS)
14. Electronic Throttling Valve
Z-2 Zone 2 Evaporator**: HEAT
1C. Zone 2 Liquid Line Solenoid (LLS2) – Open
2C. Zone 2 Liquid Return Check Valve (LRCV2) –
Closed
3C. Zone 2 Suction Line Check Valve (SLCV2) –
Open
4C. Zone 2 Suction Line Solenoid (SLS2) – Open
5C. Zone 2 Hot Gas Solenoid (HGS2) – Closed