KIRLOSKAR KAC - Page 43

KIRLOSKAR CHILLERS PRIVATE LIMITED
A Kirloskar Group Company IOM-KAC-ENG - Page 39
B.
COMPRESSOR WILL
NOT RUN BUT
NOISY
Erratic wire connections.
Check and rewire.
Check supply voltage
Faulty starters.
Replace.
Worn Compressor.
Replace.
D.
LOSS OF OIL
Low oil level.
Check oil heater.
Top-up oil.
Suction superheat too low.
Increase superheat setting.
E.
HIGH DISCHARGE
PRESSURE
Non-condensable in system
Purge the non-condensable.
System over-charged with
refrigerant.
Remove excess.
Liquid ball valve partially
closed.
Open valve.
F.
LOW DISCHARGE
PRESSURE
Insufficient refrigerant in
system.
Check for leaks. Repair and add
charge.
Low suction pressure.
See corrective steps for low suction
pressure.
G.
HIGH SUCTION
PRESSURE
Excessive load.
Reduce load or add additional
equipment
Expansion valve overfeeding.
Check remote bulb / check
superheat setting. Regulate
superheat.
High return water temperature.
Reduce load or add additional