Group Number Setting - LG multi v Installation Manual

HR UNIT PCB
82

Group Number setting

Group Number setting for Indoor Units
- Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off.
- The communication cables connected to CEN.A and CEN.B terminal should be connected to
central control of Outdoor Unit with care for their polarity (A-A, B-B ).
- Turn the whole system on.
- Set the group and Indoor Unit number with a wired remote control.
- To control several sets of Indoor Units into a group, set the group ID from 0 to F for this pur-
pose.
Outdoor Units (External PCB)
SODU.B SODU.A IDU.B IDU.A
B A B(D)
Group recognizing the central controller
! WARNING
• Valve address and central control address of its corresponding indoor unit should be set identi-
cal in manual addressing.
EX)
CEN.B CEN.A DRY1 DRY2 GND
A(C)
No.0 group (00~0F)
No.1 group (10~1F)
No.2 group (20~2F)
No.3 group (30~3F)
No.4 group (40~4F)
No.5 group (50~5F)
No.6 group (60~6F)
No.7 group (70~7F)
No.8 group (80~8F)
No.9 group (90~9F)
No. A group (A0~AF)
No. B group (B0~BF)
No. C group (C0~CF)
No. D group (D0~DF)
No. E group (E0~EF)
No. F group (F0~FF)
HR unit
Example) Group number setting
12V
Group Indoor unit
st
1 number indicate the group number
2nd number point out indoor unit number
Valve (04) Indoor unit (04)
Valve (03) Indoor unit (03)
Valve (02) Indoor unit (02)
Valve (01) Indoor unit (01)
Central control address
1 F