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Start-Up and Shutdown
Satisfied Setpoint
The Satisfied Setpoint diagram shows the normal transition from Running to shutting down due to the Evap Leaving water
temp falling below the differential to stop setpoint.
Figure 32. Sequence of events: satisfied setpoint
Satisfied Setpoint
Running
Preparing to Shutdown
Energize Unload Solenoid
Energize Unload
Solenoid
Enforce All Running Mode Diagnostics
62
(40 Seconds)
Shutting Down
Shutting Down
Open EXV
Close EX V
(0-20 Seconds)
(20 Seconds)
Open EXV
Close EX V
De-Energize Condenser
Water Pump Relay
De-Energize Primary Oil
Line Solenoid Valve
Continue to Energize Unload
Solenoid for 60 Mins
Energize Oil Heater
De-Energize
Compressor
Confirm No Compressor Currents
Within 0 - 30 Seconds
Auto
Pre-Position EX V
to 38% Open for
Next Start
RTHD-SVX01K-EN
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