User Manual

www.climacoolcorp.com
30
• Check water ow 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 specic
project for these values. If the temperature drop/rise
is greater than the design, your heat exchanger may
need to be back ushed or the strainer may need to
be cleaned.
Annual
• Back ush 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
conguration.
• 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 conrm correct operation of
the chiller.
Maintaining a Daily Log
Date
Chiller No.
Technician
Sun. Mon. Tue. Wed. Thur. Fri. Sat.
Chiller Water
E
ntering
T
emperature
Chilled Water
L
eaving
T
emperature
Condenser
W
ater Entering
Temperature
Condenser
W
ater Leaving
T
emperature
Chilled Water
P
ressure Drop
Condenser
W
ater Pressure
Drop
Faults: Note By
M
odule 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.
Te
chnician
S
un. Mon. Tue. Wed. Thur. Fri. Sat.
C
hiller Water
En
tering
Te
mperature
Chilled Water
Le
aving
Te
mperature
Condenser
Wa
ter Entering
Temperature
C
ondenser
Wa
ter Leaving
Te
mperature
C
hilled Water
P
ressure Drop
C
ondenser
Wa
ter Pressure
Drop
Fa
ults: Note By
Mo
dule Number