External Input And Output (For 24-36 Outdoor Units); External Input - Fujitsu AUUH18LUAS Service Manual

4. External input and output (for 24-36 outdoor units)

→ith using external input and output functions, this product can be operated inter-connectedly with
an external device.
Connector
P580 Low noise mode
PA580
P590
PA590

4-1. External input

→ith 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
Outdoor unit
control PCB
Connector
1
2
1
2
Input signal
Low noise mode
• Optional part
Part name
External Connect Kit
4-1. External input
Input
Peak cut mode
—
—
Connected unit
(Locally purchased)
Example: Switch
10m*
(33ft)
Signal
On
Off
On
Off
Model name
UT↔-↓→Z↓Z3
Output
—
—
Error status
Compressor status
• Contact capacity: DC 24 V or more, 10 mA
or more.
• *: Make the distance from the PCB to the
connected unit within 33 ft (10 m).
• Construct a circuit as shown in this figure
with using optional parts mentioned below.
• Input signal: On in "Low noise mode"
• Input signal: Off in normal operation
• To set the level of "Low noise mode," refer
to "Low noise mode"
"Local setting procedure".)
- (05-45) -
Remarks
See external input/output settings
for details.
on page 05-12 (under
Exterior
External input wire
4. External input and output (for 24-36 outdoor units)