48
PROBLEM
OPERATING MODE
PROBABLE CAUSE
REMEDY
COOLING
HEATING
B)
A compressor does
⊗
⊗
Burnt compressor winding
Replace compressor
not start
⊗
⊗
Compressor contactor not
excited
Check power voltage at
winding terminals and check
winding for breaks.
⊗
⊗
Power circuit broken.
Find cause of circuit breaker
trip. Close switch.
⊗
⊗
Motor thermal switch
tripped.
Compressor operating at limit
or low refrigerant circuit
charge.
Check operation and refer to
point G.
C)
The compressor starts
and stops repeatedly
⊗
⊗
Minimum pressare safety
intervention
See point E
⊗
⊗
Faulty compressor
contactor.
Check and replace if necessary.
⊗
⊗
Faulty compressor.
Check and replace if necessary
- See point B.
⊗
⊗
Insufficient refrigerant.
See point G.
⊗
⊗
Incorrect set point.
Adjust (see Controller Manual)
Содержание KAPPA V 2001
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