Blue Box KAPPA V 2001, Operating, Installation And Maintenance Manual And Maintenance Manual And Maintenance Manual

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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)