LG V-NET AC Smart II Advanced Control Smart Owner's Manual page 27

Information: Connection setting when using simple central
controller with AC Smart
You can use a simple central controller with AC Smart. When you want to use a simple central
controller with AC Smart, connect the simple central controller in the order shown as follows.
Reference: Check V-net Label
Check the V-net Lbel on the right side of the case of the simple central controller. AC Smart II
can be simultaneously connected only to the product with the label.
You must connect the VCC and GND terminal of the simple central controller to connection of
PI485 or to a separate adapter. For more details, refer to the manual of the simple central
1
. Connect the BUS-A and BUS-B port of PI485 to the A and B terminal of the simple central
controller using the RS485 communication cable.
2
. Set the rotary switch of the simple central controller to align with the group number of the
indoor unit to control. For example, when you want to control the indoor units with the address
of 00~ 0F, set the rotary switch to 0.
3
. Set the DIP switch No. 1 of the simple central controller to OFF (Slave) and No. 2 to ON (LGAP
use mode).
+
ED17
RS485
GND
D
BUS_B
C
IC1P
BUS_A
+
Rotary
Switch
ON KSDO4H
DIP
Switch
L1 2 3 4
S19
CN-POWER
GND
CN-POWER
S2
S1
L
LED2
LED3 LED4
S5
S6
+
+
+
LED7 LED8
LED5
S10 S11
S9
+
+
+
LED9 LED12
LED11
LED10
S15
S14 +
+ +
LED16
LED13 LED15
LED14
PWB:6870A10001A
ASM:6711A20005E
S15
+
ON KSDO4H
LED17
L1 2 3 4
S19
Installation/Owner's Manual
2. AC Smart II Installation
CN-COM B
CN-COM A
S4
S3
+
TX1
S12
S16
+
S18
2-12