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HDWA-SVX001D-EN
Immediate Shutdown to Stopped or Run
Inhibit
The following figure shows the transition from running
through an immediate shutdown. The dashed lines on
the top indicate the final mode if the stop is entered via
various inputs.
Figure 40.
Sequence of events: immediate shutdown to stopped or run inhibit
Immediate Shut-down Non-Latching Diagnostic
Immediate Shut-down Latching Diagnostic
Immediate Stop
Running
Shutting Down
Stopped
Run Inhibit
or
Stopped
Run Inhibit
Stopped
Close IGV (0 to 50 Seconds)
MBC Levitation Will Stop When RPM < 1200 for 60 Seconds
No Evap Pump Off Delay
for Immediate Shutdown
De-Energize
Compressor
De-Energize Evap
Water Pump Relay
De-Energize
Cond Water Pump
Close Economizer EXV
Close Motor Cooling
Valve
Close Drive Cooling
Valve
De-Levitate Magnetic
Bearings
Close MBC Valve
Close Evaporator EXV