Fujitsu ARXG45KHTA Service Manual page 139

¢ Fresh-air control output
Signal linked to the indoor unit fan on can be output.
NOTE: In cold-air prevention control operation, the signal becomes off.
 Circuit diagram example
12 V
• *: Make the distance from the PCB to the connected unit within 10 m.
• Relay spec: Rated DC 12 V, 50 mA or less.
Indoor unit
Output signal
 Optional part
Part name
Fresh Air Intake Kit
3-3. External output
Indoor unit
control PCB
Connector
1
on/off
2
*10 m
Operation
Stop
On
Off
Model name
UTD-ECS5A
Connected unit
Example:
Relay unit
Signal
Locally purchased
Fresh-air output wire
- (05-13) -
Example: Fan
Relay
power
supply
Exterior
3. External input and output for indoor unit