36 CG-SVX038A-EN
Unit Restart
Unit Restart After Extended
Shutdown
Use this procedure to prepare the system for restart after
an extended shutdown.
1. Close the unit main disconnect(s) and the unit-
mounted disconnect (if used).
2. Check compressor crankcase oil levels. Oil should be
visible in the compressor oil level sight glass.
3. Fill the chilled water circuit(s) if drained during
sh
utdown. Vent the system while filling it.
4. Close the fused disconnect switc
h(es) for the water
pumps.
5. Start the water pump(s). With w
ater pumps running,
inspect all piping connections for leakage. Make any
necessary repairs.
6. With water pump(s) running, adjust
chilled water flow
and check water pressure drop through the evaporator.
7. Check the flow switch on the
evaporator outlet piping
for proper operation.
8. Stop the water pump(s).
9. Complete each step in Trane literature
CGWR-ADF0
02*-EN (Start-up Check List for CGWR and
CCAR Chillers).
10. Energize Crankcase Heaters (Must be energized
24 hours before startup).
NOTICE:
Compressor Failure!
To protect compressors from premature failure the unit
must be powered and crankcase heaters energized at
least 24 hours BEFORE compressors are started.
NOTICE:
Compressor Damage!
To prevent compressor damage, be certain that all
refrigerant valves are open before starting the unit.