Airedale International Air Conditioning Free-Cooling Chiller UCFC180DQ-6/2

Check against commissioning records

Control settings verified against commissioning records

Alarm log checked for unusual occurrences

Is the chilled water control maintaining design temperature?

Enter the chilled water flow percentage

Is the chilled water flow within design limits of zero to plus 10%?

Ensure efficient operation and correct functioning

Operation of waterflow switch and pump interlock verified

Periodic Maintenance and Inspection

Measure compressor motor insulation

Ensure the following shut down precautions are taken

Ensure all work is carried out by technically trained competent personnel

Isolate equipment to prevent electrical and mechanical hazards

Record the current operating hours of the compressor

Has the compressor reached 7,500 hours or 4 years of operation?

Inspect the condition of the compressor oil

Is the compressor oil in acceptable condition?

Describe any issues found with the compressor oil

Ensure all work is carried out by technically trained competent personnel.

Isolate equipment to ensure no live electrical or moving parts are active before maintenance or repair work.

Check evaporator trace heating activation temperature

Check low ambient thermostat activation temperature

Visually inspect the unit for general wear and tear, treat metalwork.

Visually inspect pipe and pipework insulation.

Clean evaporator water strainer.

Clean condenser coils using detergent and stiff bristled brush. Do not steam clean.

For heavy dirt, was a high pressure water or chemical hose used?