nVent Hoffman X2302, Инструкция по эксплуатации

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Evaporator Coils Freezing
(while unit is cooling)
Are both the evaporator
and condenser fan(s)
running?
Does the unit
have airflow
Is cabinet properly sealed?
(door gaskets, conduit openings,
mounting gaskets, etc..)
Can compressor
satisfy cooling setpoint?
Contact Technical
Support ( 763 ) 422 - 2211 ,
prompts 1 , 2 , 3
Verify there is voltage to
inoperable fan
Are fan indicators
on the controller
illuminated?
Replace Fan
Check component
connections
and wiring
Clean/replace
filter and clean
condenser coil
Replace seals and gaskets
on enclosure. Monitor for
normal operation.
Possible Causes:
• Low Refrigerant
• Leak
Check controller
settings
YES
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Unit Tripping Supply Breaker
Does breaker trip
instantaneously?
Does it trip when compressor
comes on?
Check for compressor
shorted to ground.
Replace Compressor
Check electrical connections
and component amp draw.
Check electrical connections
and component amp draw.
Check that fuse and breaker
are correct type and sized
accordingly.
Replace fuse or breaker with
correct type and size.
Check power connections
and components for possible
short circuit.
NO
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NO