Multi F Four-Way Ceiling Cassette Service Manual

- 23 -
Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 2 Functions & Controls
6.7 Group Control
GND
GND
12V
Signal wire
Signal wire
GND
12V
B Y R B Y R
MASTER SLAVE
Signal wire
GND
12V
Signal wire
1. When installing more than 2 units of air conditioner to
one wired remote controller, please connect as the
right figure.
• If it is not event communication indoor unit, set the unit
as slave.
• Check for event communication through the product
manual.
2. When installing more than 2 wired remote controllers to one
air conditioner, please connect as the right picture.
• When installing more than 2 units of wired remote controller to one
air conditioner, set one wired remote controller as master and the
others all as slaves, as shown in the right picture.
• You cannot control the group as shown in the right for some prod-
ucts.
•
Refer to the product manual for more detail.
When controlling multiple indoor units with event communication function with one remote controller, you must change the
master/slave setting from the indoor unit.
- Indoor units, the master/slave configuration of the product after completion of indoor unit power ‘OFF’ and then ‘ON’ the
power after 1 minutes elapsed sign up.
- For ceiling type cassette and duct product group, change the switch setting of the indoor PCB.
- For wall-mount type and stand type product, change the master/slave setting with the wireless remote controller. (Refer to
wireless remote controller manual for detail)
❈ When installing 2 remote controllers to one indoor unit with event communication function, set the master/slave of the
remote controller. (Refer to remote controller master/slave selection)
When controlling the group, some functions excluding basic operation setting, fan level Min/Mid/Max, remote controller
lock setting and time setting may be limited.
<When simultaneously connecting
2 sets of wired remote controller>
• When controlling in groups, set the master/slaver of the remote controller. Refer to Installer setting section on how to set mas-
ter/slave for more detail.
12345678 12345678
#3 switch OFF: Master
(Factory default setting)
#3 switch ON: Slave