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Setting the Option Switch and Function of the Keys
Option Switches in PBA of the Outdoor Unit
Main PBA (AE090/120/160MXTP∗H)
Dip switch
Display
Key
Sub PBA (AE044/066MXTPEH)
MAIN-SUB SIGNAL
12V
1
DC POWER
36
English
Display
Dip switch
R1
R2
K1
K2
K3
K4
Key
Key Function of the Outdoor Unit PBA
Display
Function of KEY
Number of
K1 (Heating)
pressing
Adding refrigerant in
1
heating mode (
Test operation for heating
2
(
)
Heating Pump out
3
operation (
4
Vacuum(All)(t 4) (
5
End of key operation
• 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.
Check mode
RESET View mode
KEY
K2 (Cooling)
Adding refrigerant in
)
cooling mode (
)
Test operation for cooling
(
)
Cooling Pump down
)
operation (
)
)
Inverter Check(
)
End of key operation
) :
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