Trane Agility HDWA - Start-up Sequence: Satisfied Setpoint Shutdown

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HDWA-SVX001D-EN
Satisfied Setpoint
The following figure shows the normal transition from
running to shutting down due to the evaporator leaving
water temperature falling below the differential to stop
setpoint.
Figure 38. Sequence of events: satisfied setpoint
Satisfied Differential to Stop Setpoint
Preparing Shutdown Shutting Down Auto
Command IGV Closed
(Check for 24 Hour Overdrive)
Close Economizer
Valve
De-energize
Compressor
De-energize Condenser
Water Pump Relay
Close Drive Cooling
Valve
Close Motor Cooling
Valve
De-levitate
Compressor
Set Evaporator EXV
to 50%
Close MBC
Cooling Valve
Running Auto
Close IGV (0 to 50 Seconds) MBC Levitation Will Stop When
RPM < 1200 for 60 Seconds
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