External Input & Output - Fujitsu WOxK112LCT Design & Technical Manual

5-21 EXTERNAL INPUT & OUTPUT
MODELS : WO
„ „
Input
Low noise mode
Peak cut mode
―
EXTERNAL INPUT
… „
ON/OFF of the "Low noise mode" and "Peak cut mode" functions can be specified by external
signal.
Low noise mode
z „
• On-site work like the following also reduces the operating sound of the outdoor unit from the
normal sound.
The air conditioner is set to the "Low noise mode" by applying 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
Outdoor
control PC board
Connector
Red
1
White
2
Black
3
Surely insulate with
insulation tape etc. since
this wire is not used.
• Use the following parts and construct a circuit like that shown above.
• Input signal∙∙∙ON : Low noise mode / 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)
Model name
UTY-XWZXZ2
K112L, WOK140L, WOK160L
Output
―
―
Compressor status
Connected unit
Vcc Vcc
Power
supply
R
SW
*10 m
Signal
Field supply
* Make the distance from the PC board to the connected unit within 10 m.
ON
OFF
ON
OFF
Wire (External input)) : Red / White / Black
- (OU01 - 12) -
Connector
CN19
CN19
CN18
1) Power supply
●Voltage (Chart sign=Vcc) : DC 5V to 24V
●The current capacity : About 100mA
2) Switch (Chart sign=SW)
● 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
Remarks
See external
input/output settings
for details.
Outdoor unit / 3 phase