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Test Run
6.2 Test Run from Outdoor Unit Side
The procedure of test run from the outdoor unit side is indicated below. Setting of this dip switch is available with the power
supply ON.
Setting of Dip Switch (Before Shipment)
DSW4
Switch for Setting of Service Operation and Function
1. Test Run
2. COOL/HEAT Setting
(ON: Heating Operation)
3. OFF (Fixed)
4. Manual Compressor OFF
5. OFF (Fixed)
6. OFF (Fixed)
● Do not touch any other electrical parts when operating switches on the PCB.
● Do not attach or detach service cover when the power supply for the outdoor unit is ON and the outdoor unit is
operated.
● Turn all the dip switches of DSW4 OFF when the test run operation is completed.
Dip Switch Setting Operation Remarks
Test Run
1. Setting of Operation Mode
Cool: Set DSW4-2 OFF.
1. The indoor unit automatically
starts to operate when the test
run of the outdoor unit is set.
2. The ON/OFF operation can
be performed from the remote
control switch or DSW4-1 of the
outdoor unit.
3. Continuous operation during
2 hours is performed without
Thermo-OFF.
* Take care that the indoor units operate in
accordance with the test run operation of
the outdoor unit.
* The test run is started from the outdoor unit
and stopped from the remote control
switch, the test run function of the remote
control switch is canceled. However, the
test run function of the outdoor unit is not
canceled. Check to ensure that the DSW4-
1 of the outdoor unit PCB is turned OFF.
* In case that the plural indoor units are
connected with one remote control switch,
perform the test run operation at each
refrigerant system one by one. Then, make
sure to turn the power supply OFF for the
indoor units at other refrigerant system not
to operate test run.
ON
OFF
1 2 3 4 5 6
Heat: Set DSW4-2 ON.
ON
OFF
1 2 3 4 5 6
2.Starting Test Run Set DSW4-1 ON
and the operation is started after a
few ~ 20 seconds.
Outdoor Unit
Test Run
Unit
Power OFF.
Indoor
ON
OFF
1 2 3 4 5 6
When heating operation,
leave DSW4-2 at ON.
* The setting of DSW4 is not required
for the test run from the remote control
switch.