FAULT
CAUSE
REMEDY
C) Low ·oll pressure (continued)
5. In minimum position, discharge pressure too
5. Check capacity con trol cam settings
low for oil circulation
and actuator motor shaft returns.
Readjust
6. Uquid refrigerant in oîl
6. Stop liquid carryover.
Check oil heater. Check low oil safe-
ty switch
7. Low oil viscosity
7. Change oil
D) High oil pressure
1. Oil pressure relief valve and/or oil pressure
regulating valve out of adjustment or detective
1. Adjust or repair
2. OH temperature toa low
2. See E
E) Low oil temperature or drops
1 . Oil cooler capacity toe high
1. Decrease water supply
rapidly
2. Liquid carryover
2. lnstall liquid separator in suction line
3. Water regulating valve or refrigerant regula-
ting valve out of adjustment or defective
3. Adjust or repair
F) High oil temperalure (oil tem-
1. Oil cooler capacity too low due to:
perature safety switch may
1 a. Pollution
1 a. Clean. Check water treatment
become operative)
1 b. Too little or too warm cooling water
1 b. lncrease water sUpply
2. Oil cooler regulating valves out of adjustrnent
2. Adjust or repair
or detective
G) High dischatge temperature
1. High oi! temperature
1. See F
(water
cooled only)
2. Plugged oil strainer
2. Clean strainer
3. Abnormal operating conditions. e.g. abnormal-
3. Check system
ly high suction pressure, high suction super-
heat or high discharge pressure
H) Low suction pressure
1 . Suction stop valve not open wide enough
1. Fu!lly open
2. Refrigerant charge in plant low
2. Add refrigerant
3. Throttle control valve tor feed[ng evaporator
3. Readjust control
not
wide
open enough
4. Evaporator too much frosted
4. Defrost
5. Suction pressure gauge detective
5. Repair or replace
6. Capacity control not modulating
6. See J
1) High suction pressure
1 . By-pass valve remains open
1. Repair
2. Polluted suction gas stralner
2, Clean strainer
3. Throttle control valve for evaporator feeding
3. Readjust control
not open wide enough
4. Suction pressure gauge detective
4. Repair or replace
5. Capadty control not modulating
5. See J
Page 6.6
Compressor Package GSLP
92.01
