ClimaCool SHC onDEMAND 30, 50, 70, 85 Manual - Manual (Page 32)

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30
Chiller Operation and Maintenance
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A log of temperatures and pressures should be taken
regularly. Periodically conduct a visual inspection of the
chiller to identify problems before they reach the point of
failure. As with any mechanical system, it is necessary to
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correct operation.
Maintaining a Daily Log
Date
SUN MON TUE WED THU FRI SAT
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Chiller No. Technician
Daily
• A daily operational log should be kept.
• Perform visual inspection.
• Record entering and leaving chiller water and condenser
water temperatures and pressures.
• Note any problems that may exist and immediately plan
for further investigation. If repair is necessary, schedule
for earliest possible date.
• Properly document all data taken.
Weekly
• Review daily log from previous week.
• Perform visual inspection.
• Properly document all data taken.
• Note any problems that may exist. Immediately plan
for further investigation. If repair is necessary, schedule
for earliest possible date.
Quarterly
• Check the master and module control panel operating
parameters and set points.
• Check temperature drop/rise on each individual
heat exchanger.*
• Check compressor oil level.
• Check compressor oil color.
• Š‡ ™ƒ–‡”ƪ‘™”ƒ–‡•ƒ†’”‡••—”‡†”‘’•ƒ ”‘••
evaporator and condenser heat exchangers.
• Properly document all data taken.
• Check all electrical connections for tightness.
* The temperature drop/rise on a fully loaded (both
compressors) heat exchanger is generally 10°F. If only one
compressor is running the temperature drop/rise will be
approximately 5°F. Some projects are designed to have a
higher or lower temperature drop on either the evaporator
or the condenser depending on application. Consult your
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the temperature drop/rise is greater than the design, your
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may need to be cleaned.
Annual
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only ClimaCool recommended de-scalers (see Chemical
Clean In Place Washing on page 31).
• Remove and clean all waterside strainers.
• Manually operate all waterside isolation valves,
if provided, on each module.
• Check all electrical connections for tightness.
• Perform leak check on all refrigerant circuits.
• Check all header piping couplings for tightness.
• Check oil level and color on each compressor.
• Check and test all refrigerant safeties for proper operation.
• Check all peripheral systems for proper operation.
• Check and test CoolLogic Control System.
• ‡”‹ˆ›•‡–’‘‹–•ǡ•‡•‘”•ƒ†‰‡‡”ƒŽ ‘–”‘Ž ‘Ƥ‰—”ƒ–‹‘Ǥ
• Properly document all data taken.