Fujitsu AUYG18LVLB Design & Technical Manual page 240

6-2. Outdoor unit
Connector
CN131
CN132
CN136
CN137
¢ External input
With using external input function, on/off status of "Low noise mode" and "Peak cut mode" can be
specified by the external signal.
 Low noise mode
In following condition, the operating noise of the outdoor unit reduces comparing from the one in nor-
mal operating condition:
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 control PCB of the outdoor unit.
NOTE: Product performance may drop depending on some conditions such as the outdoor temper-
ature.
• Circuit diagram example (CN131)
Outdoor unit
control PCB
Connector
CN131
Input signal
Low noise mode
• Optional part
Part name
External connect kit
6-2. Outdoor unit
Input
Low noise mode
Peak cut mode
—
— Compressor status
• Contact capacity: DC 24 V or more, 10 mA or more.
Connected unit
• *: Make the distance from the PCB to the connected
Example: Switch
• Construct a circuit as shown in this figure with using op-
• Input signal: On in "Low noise mode"
*10 m
• Input signal: Off in normal operation
• To set the level of "Low noise mode", refer to
Signal
Locally purchased
On
Off
On
Off
Model name
UTY-XWZXZ3
Output
—
—
For details, refer to external input and
Error status
unit within 10 m.
tional parts mentioned below.
noise mode" on page 282.
- 232 -
Remarks
output settings.
"Low
Exterior
6. External input and output