6. SYSTEM DESIGN
AUXILIARY HEATER OUTPUT
Compact Cassette Slim Duct
Comapct Wall
Mounted
Wall Mounted
Connector - CN10 - -
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
Relay spec.:
Rated 12V DC, 50mA to less.
Field supply
Indoor
control PC board
Connector
1
12 V
on/off
2
Signal
Relay
power
supply
Ex.) Heater
Connected unit
Ex.) Relay unit
*33ft.
(10m)
* Make the distance from the PC board to the connected unit within 33ft. (10m).
ON
OFF
Operation
Stop
Heating
operation
Indoor unit fan
ON
OFF
Output signal
1min
CAUTION
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 Slim Duct
Comapct Wall
Mounted
Wall Mounted
Parts name -
External control set
--
Model name - UTD-ECS5A - -
External
Heater
Supply air Return air
Indoor unit
- (06 - 103) -
SYSTEM
DESIGN
SYSTEM
DESIGN
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