24
ENGLISH
CAUTION
In replacement of the indoor unit PCB, always perform auto address
setting again.
- If power supply is not applied to the indoor unit, operation error oc-
curs.
- Auto addressing has to be performed after 3 minutes to improve
communication.
!
Automatic Addressing (U4 Chassis, 1 Fan
Model)
The address of indoor units would be set by auto addressing
LED01M (Red)
LED02M (Green)
SW02N
Auto Addressing
SW01N
The Procedure of Automatic Addressing
• Automatic addressing setting end
Numbers of indoor unit connection set whose
addressing is completed are indicated for 30seconds
on 7-segment LED after completing setting
Indoor address number is displayed on wired remote control or
indoor unit display window. It is not an error message, will
disappeared when on/off button is pressed on remote control
ex) Display of 01, 02, ..., 15 means connection of 15 indoor units
and Automatic addressing is completed normally.
Auto addressing start
All DIP switch should be off before auto adressing
Waiting 3 minutes
Power On
Press SW02V for 5 s
7-segment LED = 88
Waiting about 2~7 minutes
7-segment LED
OK
YES
NO
Check the connections
of communication cable
= 88
The Procedure of Automatic Addressing
* Automatic Addressing setting end.
After ending the setting, green LED is flickering as the
number of connected indoor units.
Ex) In case connected indoor units are 4, green LED is
flickering 4 times.
Auto addressing start
All DIP switch should be off before auto adressing
Waiting 3 minutes
Power On
Press SW02N for 5 s
Waiting about 2~7 minutes
OK
YES
NO
Check the connections
of communication cable
Red and Green LED are
flickering 8 times
continuously
Green LED is
flickering as many of
indoor units?
Indoor address number is displayed on wired remote control or
indoor unit display window. It is not an error message, will
disappeared when on/off button is pressed on remote control ex)
Display of 01, 02, ..., 15 means connection of 15 indoor units and
auto addressing is completed normally.
- Wait for 3 minutes after applying power supply (outdoor unit, indoor
unit).
- Press the switch of the outdoor unit for 5 seconds.
- For completing addressing, 2~7 minutes are required depending on
numbers of indoor unit connection set.
- After completing addressing, address of each indoor unit is indicated
on the wired remote control display window. (CH01, CH02,
CH03, ............. CH06: Indicated as numbers of indoor unit connection
set.)
How to connect central controller (U3 Chassis, 2 Fan Model)
- The communication lines connected to INTERNET terminal should be
connected to central control of Outdoor unti with care for their polar-
ity( A
’
A, B
’
B )
- Connect communication lines between outdoor unit and indoor units
through the terminal block.
- When connecting communication line between outdoor unit and in-
door units with shielded wire, connect the shield ground to the earth
screw.
- When connecting the central control system with shielded wire, con-
nect the shield ground to the earth screw.
Outdoor Units
Terminal block on the main PCB
How to connect central controller (U4 Chassis, 1 Fan Model)
- Remove all of the screws at the lower part of a backside panel and
remove the panel by pulling it forward.
- Connect communication lines between outdoor unit and indoor units
through the terminal block.
- When the central control system is connected to the outdoor unit,
the central controller PCB (PI 485) must be connected between
them.
- When connecting communication line between outdoor unit and in-
door units with shielded wire, connect the shield ground to the earth
screw.
- When connecting the central control system with shielded wire, con-
nect the shield ground to the earth screw.
SODU
IDU
INTERNET
DRY1
DRY2
B
A
B(D)
A(C)
GND
12V
ON
L1 2 3 4
KSDO4H
PI 485
Summary of Contents for ARUN40GS2A
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