- (05-34) -
SY
ST
EM
DE
SIGN
SY
ST
EM
DE
SIGN
EXTERNAL INPUT & OUTPUT
5.
OUTDOOR UNIT
5-1.
Input
Output
Connector
Remarks
LOW NOISE MODE
―
CN19
See external
input/output settings
for details.
PEAK CUT MODE
―
CN19
―
ERROR STATUS
CN18
―
COMPRESSOR STATUS
CN18
EXTERNAL INPUT
5-1-1.
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" 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
z
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.
ON
OFF
ON
OFF
Input signal
Low noise mode
Parts (Optional)
z
Parts name
Model name
Wire (External input) : Red / White / Black
External connect kit
UTY-XWZXZ2
Outdoor unit
control PC board
Connected unit
Connector
1
2
3
Signal
Field supply
* Make the distance from the PC board to the connected unit within 10 m.
Surely insulate with
insulation tape etc. since
this wire is not used.
*10 m
Red
White
Black
Vcc
R
SW
Vcc
Power
supply
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
