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Shut Down
Unit Restart
Unit Restart After Extended Shutdown
Use this procedure to prepare the system for restart after an
extended shutdown.
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.
1. Close the unit main disconnect(s) and the unit- mounted
disconnect.
2. Check compressor crankcase oil levels. Oil should be
visible in the compressor oil level sight glass
3. Fill the chilled water circuit if drained during shutdown. Vent
the system while filling it.
4. Close the fused disconnect switches for the water pumps.
5. Start the water pumps. With water pumps running, inspect
all piping connections for leakage. Make any necessary
repairs.
6. With water pumps 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 pumps.
9. Complete each step in CICD Individual Chiller Start-up
Check List CG-ADF004*-EN.
10. Energize crankcase heaters. (Heaters must be energized
a minimum of 24 hours before startup.)
38
CG-SVX044F-EN
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