Fujitsu AOU48RLXFZ Design & Technical Manual page 257

AUXILIARY HEATER OUTPUT
Compact Cassette
Connector
A signal linked to heating operation, indoor fan ON, and compressor ON can be output.
* Output remains ON until the room temperature nears the set temperature.
When the room temperature reaches the set temperature, the output turns OFF.
(Set temperature 30°F ( -1°C) or more)
When the room temperature is substantially different than the set temperature, the output turns
OFF. (Set temperature 14°F ( -10°C) or less)
Jumper wire (Indoor Unit)
This is used to continue indoor unit fan operation for 1 minute after thermo OFF in heating mode.
1 minute delay control set by cutting jumper wire on PCB.
Circuit diagram example
Indoor
control PC board
12 V
Connector
1
on/off
2
*33ft.
(10m)
* Make the distance from the PC board to the connected unit within 33ft. (10m).
Operation
Heating
operation
Stop
ON
Indoor unit fan
OFF
ON
Output signal
OFF
Please locate a external heater between the indoor unit and the outlet.
Please be sure to use delay control of a fan.
Parts (Optional)
Compact Cassette
Parts name
Model name
Slim Duct
- CN10
Connected unit
Ex.) Heater
Ex.) Relay unit
Signal
Field supply
CAUTION
Slim Duct
- External control set
- UTD-ECS5A
- (06 - 103) -
Comapct Wall
Mounted
-
Relay
power
supply
Relay spec.:
Rated 12V DC, 50mA to less.
1min
External
Indoor unit
Heater
Supply air
Comapct Wall
Mounted
-
-
6. SYSTEM DESIGN
Wall Mounted
-
Return air
Wall Mounted
-
-