Page 23
Commissioning
Pre-Start Checklist
Model:
Serial No:
Air side system
Yes / No
1
Electrical connections correct?
2
Fan rotation correct? Free to rotate?
3
No air trapped in the heat exchanger and piping?
Chilled water system
Yes / No
1
Pressure gauge and thermometer installed and functional?
2
Make-up water supply installed and functional?
3
Piping work proper installed?
4
Water pressure head on chilled water return OK (5m H2O or above)?
5
Chilled water piping clean?
6
Valve position Open / Close correctly before unit start-up?
7
No air trapped inside the chilled water piping?
8
Strainer installed and functional? No choking?
9
Water flow switch proper installed and functional?
Electrical
Yes / No
1
Power supply is in accordance with the nameplate ratings?
2
Field installed wiring is according to manufacturer’s wiring diagram?
3
Unit’s power supply and controls are properly connected and unit is properly GROUNDED?
4
Temperature sensor on main water supply and return installed and functional?
Chiller inspection
Yes / No
1
Unit condition: dents, deform?
2
Pump contactor and feedback installed and functional
3
Fan and fan guide tighten?
4
Energize compressor 24 hours prior to unit start-up
Startup Procedure
If the pre-start checkout has been completed, the unit is ready to start. Make sure the unit has been energized for 24
hours. Turn ON the unit and set the desire setting temperature.
Unit is equipped with safety protection device for optimum unit operation. When there is a malfunction on one of these
safety protection devices (when alarm appears on display), the corresponding protection feature will be disabled. It is
strongly recommended to stop the unit and troubleshoot the alarm occurred to avoid further damage on the chille.
