Group Control Wiring Diagram Indoor Unit 2 Indoor

Group Control Wiring Diagram Indoor Unit 2 Indoor Unit 1 Brown(GND) Cassette/Duct Indoor Unit 16 Yellow (Signal) Main PCB #1 RED Terminal Housing Block(Local supply) Main PCB #2 Main PCB #16 Lead wire Wire of remote controller Jet Cool Temp On/Off Timer Cancel E_Heater Fan Speed Operation Program Week Holiday Set Select Wiring method Air clean Room Temp Auto Swing Hour MIN SET/CLR RESET Wired Remote Controller Components 1. Remove “R 02 K(12 KΩ)”on the Main PCB (Solder side) --See next page 2. Make resister OP 7 open on the PCB in Wired Remote Controller 3. Disconnect the wire of remote controller in indoor unit 1 4. Set up the terminal block 5. Connect the wire of remote controller with terminal, and assemble the housing between main pcb and terminal 6. Connect indoor unit 1& unit 2 with Lead wire(double insulated) 7. Another indoor units(3~16) are also connected like above method 1. Terminal Block, Housing, Lead wire : Local Sourcing 2. But if you want Terminal block and Housing, LG Can provide these optionally.

Remove “R 02 K(12 KΩ)” on the Main PCB (Solder side) Micom chip Slide s/w for two thermister Slide s/w for Ceiling height OP 7 IC 02 M Micom chip R 02 K Remote Control Board Main PCB Board

Old Version OP 7 Slide Switch (2002. 5. 30)