6. SYSTEM DESIGN
EXTERNAL INPUT PRIORITY MODE
It is possible to switch to cooling operation or heating operation by using external input. •
Circuit diagram example
Contact capacity : 24VDC or more, 10mA or more.
Outdoor unit
control PC board
Connector
1
2
Signal
Field supply
*33ft. (10m)
Connected unit
Ex.) Switch
* Make the distance from the PC board to the connected unit within 33ft. (10m).
Use the following parts and construct a circuit as shown above. •
Input Signal···OFF : Cooling operation, Input Signal···ON : Heating operation •
*Set the "External input priority mode", refer to "5.FUNCTION SETTING".
ON
OFF
Cooling
Heating
Input Signal
Priority mode
Parts (Optional)
Parts name External connect kit
Model name UTY-XWZXZ3
- (06 - 91) -
SYSTEM
DESIGN
SYSTEM
DESIGN
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