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

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• Check water flow rates and pressure drops across
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 the bank performance sheet for your specific
project for these values . If the temperature drop/rise
is greater than the design, your heat exchanger may
need to be back flushed or the strainer may need to
be cleaned .
Annual
• Back flush all heat exchangers. If fouling is
suspected use only ClimaCool recommended
de-scalers (see page 31 – Chemical Clean In
Place Washing) .
• 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 .
• Verify set points, sensors and general control
configuration.
• Properly document all data taken .
Chiller Operation and Maintenance
Pressure and Temperature Log
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
conduct a series of checks to confirm correct operation of
the chiller .
Maintaining a Daily Log
Date
Chiller No.
Technician
Sun. Mon. Tue. Wed. Thur. Fri. Sat.
Chiller Water
Entering
Temperature
Chilled Water
Leaving
Temperature
Condenser
Water Entering
Temperature
Condenser
Water Leaving
Temperature
Chilled Water
Pressure Drop
Condenser
Water Pressure
Drop
Faults: Note By
Module Number
Daily
• A daily operational log should be kept .
• Perform visual inspection .
• Record entering and leaving chiller water and
condenser water temperatures and pressures .
• Properly document all data taken .
• Note any problems that may exist and immediately
plan for further investigation . If repair is
necessary, schedule for the earliest possible date .
Weekly
• Review daily log from previous week .
• Perform visual inspection .
• Properly document all data taken .
• Note any problems that may exist and immediately
plan for further investigation . If repair is necessary,
schedule for the earliest possible date .
Quarterly
• Check Master Control Panel operating parameters
and set points .
• Check temperature drop/rise on each individual
heat exchanger . *
• Check compressor oil level .
• Check compressor oil color .
Date
Chiller No.
Technician
Sun. Mon. Tue. Wed. Thur. Fri. Sat.
Chiller Water
Entering
Temperature
Chilled Water
Leaving
Temperature
Condenser
Water Entering
Temperature
Condenser
Water Leaving
Temperature
Chilled Water
Pressure Drop
Condenser
Water Pressure
Drop
Faults: Note By
Module Number