Unit installation

APPENDIX
Troubleshooter's guide
SYMPTOMS POSSIBLE CAUSE CORRECTIVE ACTION
e. Incorrect measurement/ reading
of system parameters.
Possible controller message:
OR
ALARM COMPRESSOR N.# X TR.
OUT OF RANGE.
f. Unit provided with remote
monitoring feature but serial
communication with remote
monitoring control not functioning
properly.
Problem with connections, gateway,
modem etc.
Refer microprocessor cotroller section in
this manual for detailed information on
remote monitoring systems and take
corrective action.
Possible controller message:
ALARM MASTER SIM NOT
READY
OR
ALARM MASTER GSM LOW
SIGNAL
17. Chiller noisy Improper unit mounting. Check chiller mounting and vibration
isolators. Take suitable corrective action.
Loose parts or mountings inside the chiller. Find and tighten.
Refrigerant tubing rattle. Check and correct tube supports.
Condenser fan motor bearings worn. Replace bearings or motor.
Insufficient compression - defective
compressor.
Check compressor for internal damage,
repair/ replace compressor.
Shortage of refrigerant Repair leak and recharge.
High discharge pressures Refer section 8 in this guide and take
corrective action.
Reduced cooler performance (cooler tubes
fouled retarding heat transfer).
Check cooler efficiency & clean water side
of cooler.
Dirty condenser coil. Clean coil.
Water piping not insulated properly. Insulate piping properly.
18. High chiller operating costs.
ALARM MASTER X. TR. OUT OF
RANGE
Problem with location, calibration and
wiring of sensors/ transducers or controller
malfunction.
Refer sections on "Microprocessor
Controller" and "Calibration charts" and take
suitable corrective action.
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