Normal Shutdown To Stopped Or; Run Inhibit - Trane Agility HDWA Installation, Operation And Maintenance Manual

Normal Shutdown to Stopped or Run
Inhibit
The following figure shows the transition from running
through a normal (friendly) shutdown. The dashed
Figure 39. Sequence of events: normal shutdown to stopped or run inhibit
Local Stop
Normal Latching Diagnostic
Normal Non-Latching Diagnostic
Tracer Stop
External Auto-Stop
Running
Preparing Shutdown
Close IGV (0 to 50 Seconds)
Command IGV
Closed
De-Energize
Compressor
Close Motor Cooling
Valve
Close Drive Cooling
Valve
Close Economizer
Valve
De-Energize Condenser
Water Pump Relay
HDWA-SVX001D-EN
lines on the top indicate the final mode if the stop is
entered via various inputs.
IGV Closed
Shutting Down
MBC Levitation Will Stop When
RPM < 1200 for 60 Seconds
Evaporator
Pump Off
Delay Time
(0 to 30 Minutes)
De-Energize Evaporator
Water Pump Relay
S S t t a a r r t t - - u u p p a a n n d d S S h h u u t t - - d d o o w w n n
Evaporator Pump
Delay &
Compressor Stopped
Stopped or

Run Inhibit

De-levitate Magnetic
Bearings
Close MBC Cooling
Valve
Set Evaporator EXV
to 50%
Every 24 hours, EXV
recalibration is armed.
Recalibration occurs
when it is armed and
control has cycled to
the stop state on every
Stopped
Run Inhibit
Stopped
or
Run Inhibit
power up.
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