External Input & Output; External Input - Fujitsu AR*C45LCTU series Technical Manual

12. EXTERNAL INPUT & OUTPUT
Input
Low noise mode
Peak cut mode
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12-1.

EXTERNAL INPUT

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
* 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".
Input Signal
Low noise mode
Parts (Optional)
z „
Parts name
Model name
Output
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Error status
Compressor status
Connected unit
Ex.) Switch
*10m
Signal
Field supply
ON
OFF
ON
OFF
External connect kit
UTY-XWZXZ3
Connector
CN10
CN11
CN12
CN13
Contact capacity : 24VDC or more, 10mA or more.
- (02 - 15) -
Remarks
See external
input/output settings
for details.