Fujitsu AOU48RLXFZ Design & Technical Manual page 245

EXTERNAL INPUT PRIORITY MODE
• It is possible to switch to cooling operation or heating operation by using external input.
Circuit diagram example
Outdoor unit
control PC board
Connector
1
2
* 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
Input Signal
OFF
Heating
Priority mode
Cooling
Parts (Optional)
Parts name
Model name
Connected unit
Ex.) Switch
Contact capacity : 24VDC or more, 10mA or more.
*33ft. (10m)
Signal
Field supply
External connect kit
UTY-XWZXZ3
- (06 - 91) -
6. SYSTEM DESIGN