Design and Technical Manual

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Control output function
• Operation/Stop status
Rotary SW on External
input and output PCB
External output
Output
signal
Command
1
B
C
D
External input and output PCB CN310
Off → On Operation
On → Off Stop
The output is low when the unit is stopped.
Operation
Stop
On
Off
CN310
Indoor unit
• Error status
Rotary SW on External
input and output PCB
External output
Output
signal
Command
1
C
External input and output PCB
CN311
Off → On Error
On → Off Normal
D CN312
Off → On Error
On → Off Normal
The output is ON when an error is generated for the indoor unit.
Error
Normal
On
Off
CN311―312
Indoor unit
• Indoor unit fan operation status
Rotary SW on External
input and output PCB
External output
Output
signal
Command
1
External input and output PCB
CN312
Off → On Fan run
On → Off Fan stop
2
B
D
CN311
Off → On Fan run
On → Off Fan stop
Output signal Condition
On
The indoor unit fan is operating.
Low → High
Off The fan is stopped or during cold air prevention.
High → Low During thermostat off when in dry mode operation.
Fan run
Fan stop
On
Off
CN311―312
Indoor unit
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8-4. Details of function 8. External input and output
WALL MOUNTED ASUG09-12LMAS WALL MOUNTED ASUG09-12LMAS