External Input & Output; External Input - Fujitsu AR*G60LHTA Design & Technical Manual

14. EXTERNAL INPUT & OUTPUT
Input
Low noise mode
Peak cut mode
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14-1.

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
3
Surely insulate with
insulation tape etc. since
this wire is not used.
• 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" type by "Push switch" on the outdoor control PC board.
Input Signal
Low noise mode
Parts (Optional)
z „
Parts name
External connect kit
Output
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Error status
Compressor status
Connected unit
Vcc Vcc
Red
White
R
Black
SW
*10 m
Signal
Field supply
* Make the distance from the PC board to the connected unit within 10 m.
ON
OFF
ON
OFF
Model name
UTY-XWZXZ2
Connector
CN19
CN19
CN18
CN18
1) Power supply
●Voltage (Chart sign=Vcc) : DC 5V to 24V
●The current capacity : About 100mA
Power
2) Switch (Chart sign=SW)
supply
● Toggle switch or Rocker switch, etc : Switch which maintains the
states.
● Prepare switches which are enough capable for DC 10mA
current or more
3) Resistance (Chart sign=R)
●Adjust the resistance for current to about DC 10mA
(Example)
●In case of Vcc=DC 5V : Rated resistance value 470Ω 1/4W
●In case of Vcc=DC 12V : Rated resistance value 1kΩ 1/4W
●In case of Vcc=DC 24V : Rated resistance value 2.2kΩ 1/4W
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Remarks
See external
input/output settings
for details.