Group Control - LG PREMTW101 Owners & Installation Manual

INSTALLATION
56

Group control

1. It is possible to connect 16 indoor units(Max) by one wired remote controller.
※Connect using the group control cable.
Indoor unit 1
Master
RED(12V)
YELLOW(SIG)
BLACK(GND)
OK
① Group control cable (PZCWRCG3): Connect to indoor unit's wired remote controller connector
② Extension cable (PZCWRC1): Connect to No. ① cable and slave indoor unit's wired remote
controller connector
While No. ① cable is connected, connect No. ② cable.
1
NOTE
• Connect only GND and signal cable to the indoor unit set as slave. (If power cable is also
connected, it may cause loss of communication)
• Inquiries related to the purchase of the cable shall be directed to the specialized company
and the service center.
• Change master/slave of the indoor unit.
- For Hydro Kit change the setting with the indoor unit PCB switch.
Slave Slave
Master
OK
Master
Indoor unit Main PCB
Indoor unit 2 Indoor unit 3
Slave Slave
YELLOW(SIG)
YELLOW(SIG)
BLACK(GND) BLACK(GND)
2
Slave
No. 1 switch OFF: master (factory ship-out based)
GND
No. 1 switch ON: slave
Signal
12 V
- After completing the master/slave setting in the indoor unit product, turn Off the power of the
indoor unit product, and turn On the power after 1 minute.
NOTE
• During the group control, set only 1 indoor unit as master.
• Indoor unit(Hydro Kit)'s group setting is possible which connected same outdoor unit.
• In case of Group Control, it is possible to use following functions.
- Selection of operation options (operation/stop/mode/set temperature)
- It is not possible at some functions.
• During the individual control, if the master indoor unit DIP switch is set to slave,
malfunction may occur.
2. You can use two wired remote controllers for one indoor unit.
• A dedicated cable must be used for the connection. If necessary, use an extension cable
additionally and install. (2-Remo cable : PZCWRC2, Extension cable : PZCWRC1)
• For normal operation, one should be set as master and the other as slave.
(Refer to the function "Installation setting - RMC master/slave")
• After completing the RMC master/slave setting, turn off the power of indoor unit, and turn
on the power after 1 minutes.
GND
Signal
DC 12 V
B Y R
OK
Master
INSTALLATION
57
GND
Signal
DC 12 V
B Y R
OK
Slave