Installation Manual
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EN
9
Others
External static pressure settings
Change the external static pressure setting with the DIP
switch on the indoor unit P.C. board.
To restore the factory defaults
To return the DIP switch settings to the factory defaults,
set SW501-1 and SW501-2 to OFF.
Remote Control A-B Selection
• When two indoor units are installed in the same room
or adjacent two rooms, if operating a unit, two units
may receive the remote control signal simultaneously
and operate. In this case, the operation can be
preserved by setting either one remote control to B
setting. (Both are set to A setting in factory shipment.)
• The remote control signal is not received when the
settings of indoor unit and remote control are different.
• There is no relation between A setting/B setting and A
room/B room when connecting the piping and cables.
To separate using of remote control for each indoor unit
in case of 2 air conditioners are installed near.
Remote Control B Setup.
1. Press TEMPORARY button on the signal receiving
unit to turn the air conditioner ON.
2. Point the remote control at the signal receiving unit.
3. Push and hold
button on the Remote Control by
the tip of the pencil. “00” will be shown on the display.
4. Press
during pushing
. “B” will show on the
display and “00” will disappear and the air conditioner
will turn OFF. The Remote Control B is memorized.
Note : 1. Repeat above step to reset Remote Control to
be A.
2. Remote Control A has not “A” display.
3. Default setting of Remote Control from factory
is A.
Test Operation
To switch to the TEST RUN (COOL) mode, press
TEMPORARY button for 10 seconds. (The beeper will
make a short beep.) In the TEST RUN (COOL) mode, all
LEDs together keep blinking.
In order to prevent a serial operation, the TEST RUN
(COOL) mode is released after 60 minutes have passed
and returns to the usual operation.
External static
pressure
SW501-2
SW501-1
10 Pa (default)
OFF
OFF
20 Pa
OFF
ON
35 Pa
ON
OFF
45 Pa
ON
ON
SW501-2
SW501-1
MCU(IC501)
ON
OFF
A
B
TEMPORARY button
Auto Restart Setting
This product is designed so that, after a power failure, it
can restart automatically in the same operating mode as
before the power failure.
Information
The product was shipped with Auto Restart function in
the off position. Turn it on as required.
How to set the Auto Restart
1. Press and hold the TEMPORARY button on the signal
receiving unit for 3 seconds to set the operation (3
beep sound and OPERATION lamp blink 5 time/sec
for 5 seconds).
2. Press and hold the TEMPORARY button on the signal
receiving unit for 3 seconds to cancel the operation (3
beep sound but OPERATION lamp does not blink).
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ML.book Page 18 Wednesday, March 14, 2018 10:28 AM