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(n) Low voltage protection control
If a power supply voltage of 176 V or lower is detected while the compressor is stopped, or if a power supply voltage of 176
V or lower is detected for 3 minutes during compressor operation, the compressor is stopped.
(o) Test operation
1) It is possible to operate the outdoor unit using SW9 (SW2) and SW5-4 on the outdoor unit PCB.
SW5-4
SW9
(SW2)
ON
OFF
Cooling test operation
Heating test operation
After pressing
continuously
for 1 second
Test operation is ended by pressing SW9 (SW2) during test operation.
Remote control unit settings, display contents
Capacity
Mode
Cooling operation
Heating operation
Cooling. The initial setting temperature is 5ºC. The temperature at the indoor
unit’s heat exchanger is displayed in the return air temperature display.
The initial set temperature for heating (preparation) is 30ºC and the return air
temperature is displayed in the return air temperature display.
Note (1) Items in ( ) show in the case of models 301 ~ 601.
2) Test operation control
a) Operates the air conditioner at the predetermined maximum speed for each model. (FDCVA151~251 models only.)
b) Each protective control and abnormal sensing control is activated.
c) If SW5-4 is switched back during test operation, stop control is implemented and the cooling and heating operations
are toggled.
d) Remote control unit settings and displays during test operation