2-3-3 OUTDOOR UNIT
02-19
1. SW1 setting
1-1 Test run
By setting DIP SW1-1 and SW1-2 on control PC board of outdoor unit, cooling test run or heating test run for all the indoor
units in the same refrigerant system can be performed.
SELECTOR SWITCH FOR TEST RUN AND NORMAL OPERATION
1-2 Pump down operation
Pump down operation is set with SW1-3
1-3 Forced defrost operation
PUMP DOWN OPERATION
FORCED DEFROST OPERATION
2-1 Silent operation mode (cooling mode only)
Noise level can be reduced using silent operation mode when the outdoor temperature decreases
decreases below 30 C.
2. SW2 setting
SILENT OPERATION MODE
Silent operation mode
Release
SW 2-1
ON Oparate
OFF
2-2 Snow falling protection fan mode
When snowing , to prevent the unit from being covered with snow , the outdoor fan is periodically
operated by this switch even when the compressor is stopped.
SNOW FALLING PROTECTION SW
Snow falling protection fan mode
Release
SW2-2
ON
Operate
OFF
SW1-2 SW1-1 Test Run Remarks
OFF OFF Normal operation
OFF ON Cooling test run
ON OFF Heating test run
ON ON Normal operation
SW1-3 Pump down operation Remarks
OFF Release
ON Operate
OFF ON and be kept at ON position
for more than 30 sec.
SW1-4 Forced defrost Remarks
OFF Release
ON Operate
DIP SWITCH SETTING
( Factory setting)
( Factory setting)
( Factory setting)
( Factory setting)
( Factory setting)
[OFF,OFF] [OFF,ON] and be kept at
[OFF,ON] position for more than 1 min.
[OFF,OFF] [ON,OFF] and be kept at
[OFF,ON] position for more than 1 min.
OFF ON and be kept at ON position
for more than 10 sec.
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