Fujitsu ARHG24LMLA Design & Technical Manual page 23

¢ 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
Indoor unit
control PCB
12 V
on/off
• *: 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
Model name
UTD-ECS5A
Example:
Connector
Relay unit
1
2
*10 m
Signal
Operation
Stop
On
Off
- 19 -
Connected unit
Example: Fan
Relay
power
supply
Locally purchased
Exterior
Fresh-air output wire