3-40
SM-16005-rev.2
TROUBLESHOOTING
Abnormalities of Devices
Other
Abnormalities
Cause
Check Item
Action
(Turn OFF Main Switch)
Event
Excessively
Low
Suction
Pressure
Insufficient
Heating
Operation
Measure superheat.
Correctly charge
refrigerant after gas
leakage check and
repair.
Gas Leakage
or Insufficient
Refrigerant
Charge
Check temp. difference
of each part.
Remove clogging.
Clogging
of Suction
Piping
Check temp. difference
between inlet and outlet
of strainer.
Replace strainer for
outdoor unit or indoor
unit.
Clogging of
Indoor Unit/
Outdoor Unit
Strainer
Check thermistor for
defrosting.
Replace thermistor
for defrosting.
Defrosting is
Insufficiently
Completed
Check for any
short-circuits
to outdoor unit.
Remove cause of
short circuit.
Excessively
Low
Air Temp. to
Outdoor Unit
Heat
Exchanger
Measure field-supplied
pipes.
Use specified pipes.
Excessively
Small
Diameter or
Long Piping
Is outdoor unit heat
exchanger clogged?
Remove clogging.
Are there any obstacles
at inlet or outlet of
outdoor unit?
Remove obstacles.
Is service space for
outdoor unit sufficient?
Secure sufficient
service space.
Check outdoor fan speed.
Replace fan motor.
Insufficient
Airflow to
Outdoor Unit
Heat
Exchanger
Check for clogging.
Remove clogging.
Check for connecting
cord and connector.
Replace connector.
Is there operation
sound from coil?
Replace coil.
Is thermistor on
compressor normal?
Replace thermistor.
Is thermistor
installed correctly
on compressor?
Correctly install it.
Failure or
Malfunction
of Electronic
Expansion
Valve
Calculate heat load.
Use larger unit.
Indoor Heat Load is Larger
than Heating Capacity
Check for any
short-circuited
outdoor unit air.
Содержание CIDM030B21E
Страница 2: ......
Страница 10: ...viii SM 16005 rev 2...
Страница 14: ......
Страница 15: ...SM 16005 rev 2 1 1 INSTALLATION 1 Installation...
Страница 19: ...SM 16005 rev 2 2 1 OPERATION 2 Operation...
Страница 20: ...2 2 SM 16005 rev 2 OPERATION 2 1 Indoor Unit Refer to the Operation Manual for Ducted Medium Static EconoFresh...
Страница 22: ......
Страница 23: ...SM 16005 rev 2 3 1 TROUBLESHOOTING 3 Troubleshooting...
Страница 70: ......
Страница 71: ...SM 16005 rev 2 4 1 MAINTENANCE 4 Maintenance...
Страница 72: ...4 2 SM 16005 rev 2 MAINTENANCE 4 1 Maintenance of Outdoor Unit Refer to the Service Manual for Outdoor Unit...
Страница 89: ...SM 16005 rev 2 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting...
Страница 130: ......
Страница 131: ...SM 16005 rev 2 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions...
Страница 140: ...6 10 SM 16005 rev 2 FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A f t 3 l b...
Страница 141: ...SERVICE PARTS LIST SM 16005 rev 2 7 1 7 Service Parts List...
Страница 142: ...SERVICE PARTS LIST 7 2 SM 16005 rev 2 Refer to the Service Parts List for Ducted Medium Static EconoFresh...
Страница 143: ......
Страница 144: ...2016 Johnson Controls Inc SM 16005 rev 2 Code No LIT 12012293 Revised February 2019...