Chillers
ULTIMA 2000
Chillers
32
Installation & Maintenance Manual : 903-099 IM E 05/00
Maintenance
CAUTION
ALL work MUST be carried out by Technically Trained competent personnel.
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The equipment contains live electrical and moving parts, ISOLATE prior to
maintenance or repair work.
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GENERAL
MAINTENANCE
The maintenance schedule indicates the time period between maintenance operation.
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3 MONTHS
ACTION
NOTES
REFRIGERATION
Check the following and compare results with
commissioning records.
Investigate and rectify variations.
•
Suction and discharge readings.
•
Head pressure control is maintained.
Remember to re-cap the Schraeder
connections!
•
Pressure relief indicator gauge.
•
Liquid injection solenoid valve and sight glass.
•
Check each circuit sight glass for dryness and
bubbles for indication of leaks.
•
Check compressor oil level and shell/sump
temperature.
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.
