Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 56)

OPTICHILL Chillers
56
Chillers
Installation & Maintenance : 6564868 02/2013
Maintenance
GENERAL
MAINTENANCE The maintenance schedule indicates the time period between maintenance operation.
3 MONTHS ACTION NOTES
REFRIGERATION Check the following and compare results with
commissioning records:
Investigate and rectify variations

Suction and discharge readings Remember to re-cap the Schrader
connections!

Head pressure control is maintained

Pressure relief indicator gauge

Check each circuit sight glass for dryness and
bubbles for indication of leaks

Check compressor oil level and
shell/sump temperature

Visually inspect the unit for oil patches Investigate and repair possible leaks
SYSTEM Check the following against the commissioning
records: Investigate and adjust as necessary.

Control settings

Alarm log for unusual occurrences

Chilled water control maintains
design temperature

Chilled water flow is within design limits of
zero to plus 10%

Concurrently ensure chilled water pump and
flow switch operate efficiently, and that
interlocks function correctly

Operation of waterflow switch and pump
interlock
Finally! Record operating conditions.
FABRIC Visually inspect the unit for general wear and tear,
treat metalwork. Rust should be inhibited, primed and touched
up with matching paint (available from
Airedale or your Distributor).
Visually inspect pipe and pipework insulation. Repair/rectify as necessary.
Clean evaporator water strainer. At first maintenance visit and then as
frequently as necessary (12 months).
Clean condenser coils. Do not steam clean use
detergent and stiff bristled brush. For heavy dirt,
use either a high pressure water or chemical hose. Do not damage fins and comb out if
necessary.
Visually check the following: Secure/tighten as necessary.

Pipework clamps are secure

Tightness and condition of fan and
compressor mounts

Anti-Vibration mounts fixings (if fitted)
Finally! Ensure control panel lids and access panels have
been correctly replaced and securely fastened
in position.