6-2. Outdoor unit
Connector Input Output Remarks
P580 Low noise mode —
See external input/output settings
for details.
PA580 Peak cut mode —
P590 — Error status
PA590 — Compressor status
¢
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
Outdoor unit
control PCB
Connected unit
(Locally purchased)
Example: Switch
Signal
10m*
Connector
1
2
1
2
P580PA580
• Contact capacity: DC 24 V or more, 10 mA or
more.
• *: Make the distance from the PCB to the con-
nected unit within 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" on page 159.
On
Off
On
Off
Input signal
Low noise mode
• Optional part
Part name Model name Exterior
External connect kit UTY-XWZXZ3
External input wire
- 135 -
6-2. Outdoor unit 6. External input and output
SYSTEM
DESIGN
SYSTEM
DESIGN
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