Option Switches in PBA of the Outdoor Unit
Number of
pressing
K1 (Heating) K2 (Cooling)
1
Adding refrigerant in heating mode (
)
Adding refrigerant in cooling mode (
)
2
Test operation for heating (
) Test operation for cooling ( )
3
Heating Pump out operation (
) Cooling Pump down operation ( )
4
Vacuum(All)(t 4) (
)
End of key operation
5 End of key operation -
※ Function of KEY
Adding refrigerant ( , ) : The operation for charging additional refrigerant
Test operation ( , ) : Checking the indoor and outdoor unit operation
Recovery of refrigerant ( ) : Operation for collecting refrigerants from pipes and indoor units to the
outdoor unit when moving or repairing works are required.
Refrigerant release ( ) :
Operation for releasing the refrigerant on the outdoor unit to the indoor unit pipes.
※ Main PBA
Display
Key
Dip switch
Rotary
switch
Key Function of the Outdoor Unit PBA
※ Display
Check mode
※ KEY
RESET View mode
Setting the Option Switch and Function of the Keys
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