Trane CVGF-SVU02B-E4 - Page 16

CVGF-SVU02B-E4
16
Figure 9. Immediate shutdown to stopped or run inhibit
General
Information
Running
Immediate shutdown non-latching diagnostic
Immediate shutdown latching diagnostic
Panic stop
Run Inhibit
Stopped
Post lube complete
Run Inhibit or
Stopped
Post lube and evaporator
pump off delay complete
Shutting down Shutting down Shutting down
Close IGV
(0-50 seconds)
Post Lube:
(1 minute)
De-energize oil pump
Confirm no oil pressure*
5 minutes after oil pump is de-energized
De-energize evaporator
water pump relay
Evaporator pump off
delay not performed for
immediate shutdown
De-energize
compressor
Confirm no compressor currents 8
seconds after compressor is de-
energized
De-energize condenser
water pump
*Note: No oil pressure when oil differential pressure switch is open.