Fujitsu ARGA18FMTA Design & Technical Manual page 92

 Error status output
 Circuit diagram example
Indoor unit
control PCB
Connector
*: Make the distance from the PCB to the connected unit within 10 m.
Relay spec: Max. DC 24 V, 10 mA to less than 500 mA.
Operation
Indoor unit
Output signal
 Optional part
 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
Connector
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.
Example:
DC 24 V
Relay unit
1
V
2
*10 m
Signal
Stop
On
Off
Model name
UTD-ECS5A
Example:
Relay unit
1
2
*10 m
Signal
Connected unit
Example: Display
Locally purchased
External output wire
Connected unit
Example: Fan
Locally purchased
- 37 -
Relay
power
supply
Exterior
Relay
power
supply