Daikin Centrifugal Compressor Water Chiller HSC063

Test operation of Pump Interlocks

Test operation of Guardistor and Surgeguard

Test operation of High and Low Pressure Cutouts

Test operation of Oil Pump Pressure Differential Cutout

Test operation of Oil Pump Time Delay

At least once a quarter, all equipment protection controls except compressor overloads should be made to operate and their operating points checked.

Check if Pump interlocks and flow switches interrupt the control circuit when tripped.

Inspect and clean the contactors in the motor starter

Warning: This procedure requires trained personnel with PPE!

Is the chiller at positive pressure?

If not, report the issue to the maintenance team and stop the procedure

Is the oil discharge line service valve at the oil pump closed?

Upload a photo of the closed valve

Upload a photo of the removed filter cover

Upload a photo of the removed old filter

Examine Contactors (hardware and operation)

Verify Overload Setting and Trip

Test Electrical Connections (Infrared temp measurement)

Sign off on the air compressor starter maintenance

Are all contacts clean and connections tight?

Calibrate Temperature Transducers

Check Vane Control Setting and Operation

Verify Motor Load Limit Control

Sign off on the operating controls maintenance