Outdoor Unit - Fujitsu AB12 Service Manual

OUTDOOR UNIT

1. DIP SWITCH 1
1 Test run.
Test run(forced operation) and normal operation are set with SW1-1.2 on the PCB.
The cooling/heating operation mode on the test run is set.
TEST RUN SW
SW1-2
OFF
OFF
ON
ON
2 Pump down operation.
Pump down operation is set with SW1-3 on the PCB.
SW1-3
OFF
ON
3 Forced defrost operation.
Defrosting is started forcedly with SW1-4 on the PCB.
FORCED DEFROST SW
SW1-4
OFF
ON
2. DIP SWITCH 2
1 Night operation fan mode.
The night operation fan mode ON/OFF is set with SW2-1 thermistor
detects the temperature less than 30 C and the outdoor unit operation mode is cooling.
NIGHT OPERATION FAN MODE SW
SW2-1
OFF
ON
2 Snow falling protection fan mode SW.
When the compressor is stopped,snow falling protection fan mode is set with SW2-2.
SNOW FALLING PROTECTION FAN MODE SW
SW2-2
Snow falling protection fan mode
OFF
ON
SW1-1 Test Run
OFF Normal operation
ON Cooling test run
OFF Heating test run
ON Normal operation
PUMP DOWN SW
Pump down operation
Release
Operate
Forced defrost
Release
Operate
(
Night operation fan mode
Release
Operate
Release
Operate
Remarks
(OFF-ON)and (operated continuously
more than 1 min. with ON state)
(OFF-ON)and (operated continuously
more than 1 min. with ON state)
( Initial setting)
Remarks
(OFF-ON)and (operated continuously
more than 1 min. with ON state)
( Initial setting)
Remarks
(OFF-ON)and (operated continuously
more than 1 min. with ON state)
Initial setting)
( Initial setting)
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( Initial setting)