Fujitsu AO*A45LBTL, Design & Technical Manual

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EXTERNAL INPUT & OUTPUT 12.
EXTERNAL INPUT 12-1.
ON/OFF of the "Low noise mode" and "Peak cut mode" functions can be specified by external
signal.
LOW NOISE MODE
„ „
The following reduces the operating sound of the outdoor unit from the normal sound. •
The air conditioner is set to the "Low noise mode" when closing the contact input of a commercial
timer or ON/OFF switch to a connector on the outdoor control PC board.
* Performance may drop depending on the outside air temperature condition, etc.
Circuit diagram example
„ z
Outdoor unit
control PC board
Connector
1
2
Signal
Field supply
*10m
Connected unit
Ex.) Switch
Contact capacity : 24VDC or more, 10mA or more.
* Make the distance from the PC board to the connected unit within 10m.
Use the following parts and construct a circuit as shown above. •
Input Signal∙∙∙ON : Low noise mode, Input Signal∙∙∙OFF : Normal operation •
* Set the "Low noise mode" level, refer to "13.FUNCTION SETTING".
ON
OFF
ON
OFF
Input Signal
Low noise mode
Parts (Optional)
„ z
Parts name External connect kit
Model name UTY-XWZXZ3
Input Output Connector Remarks
Low noise mode ― CN10
See external
input/output settings
for details.
Peak cut mode ― CN11
― Error status CN12
― Compressor status CN13