Fujitsu ASUH09LPAS Service Manual page 145

• Forced thermostat off function
Rotary SW on External
Input and Output PCB
2
B
C
¢ Control output function
• Operation/Stop status
Rotary SW on External
Input and Output PCB
1
B
C
D
The output is low when the unit is stopped.
• Error status
Rotary SW on External
Input and Output PCB
1
C
D
The output is ON when an error is generated for the indoor unit.
2-4. Details of function
External input
External Input and Output PCB
On
Input
Off
On
Compressor
Off
Room temp.
Set temp.
External output
External Input and Output PCB
Operation
Indoor unit
Stop
On
CN310
Off
External output
External Input and Output PCB
Error
Indoor unit
Normal
On
CN311―312
Off
- (05-21) -
Input signal
Off → On
CN313
On → Off
Output
signal
Off → On
CN310
On → Off
Output
signal
Off → On
CN311
On → Off
Off → On
CN312
On → Off
Command
Thermostat off
Normal operation
Command
Operation
Stop
Command
Error
Normal
Error
Normal
2. External input and output