LG ARUN50GS2A Quick Manual page 24

24
The Procedure of Automatic Addressing
Power On All DIP switch should be off before auto adressing
Waiting 3 minutes
Press SW02V for 5 s
Auto addressing start
7-segment LED = 88
• Automatic addressing setting end
Numbers of indoor unit connection set whose
addressing is completed are indicated for 30seconds
Waiting about 2~7 minutes
on 7-segment LED after completing setting
NO
7-segment LED
= 88
YES
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
OK and Automatic addressing is completed normally.
Automatic Addressing (U4 Chassis, 1 Fan
Model)
The address of indoor units would be set by auto addressing
SW01N
- 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.)
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.
The Procedure of Automatic Addressing
Waiting 3 minutes
Press SW02N for 5 s
Red and Green LED are
flickering 8 times
Waiting about 2~7 minutes
Check the connections
of communication cable
flickering as many of
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.
LED01M (Red)
- When connecting the central control system with shielded wire, con-
LED02M (Green)
nect the shield ground to the earth screw.
SW02N
Auto Addressing 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.
Power On All DIP switch should be off before auto adressing
Auto addressing start
continuously
* 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.
Green LED is
NO
indoor units?
YES 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
OK
auto addressing is completed normally.
SODU IDU INTERNET
B
B(D)
L 1 2 3 4
O N K S D O 4 H
PI 485
Check the connections
of communication cable
DRY1 DRY2 GND 12V
A
A(C)