4
LIMITED OPERATION BY GROUP CONTROL
NOTE
Group control: Operate air conditioners in more than one system in same time.
Header indoor unit: The representative unit during group control. Receive commands from wired remote controller
and transmit the commands to follower units.
(Header indoor unit is indoor unit that receives START/STOP signal from the wireless remote control.)
Follower indoor unit: Indoor units other than the Header unit are called follower unit.
A wired remote controller (separately available) is required for the group control.
▼
Example of group combination
Indoor
Wired Remote controller
Outdoor
Indoor
Outdoor
Indoor
Control line
Other connecting line
Outdoor
CAUTION
When using indoor unit in group control,
1. Hi POWER operation will not function.
When Hi POWER is transmitted from wireless remote controller the receiving sound will be heard from the indoor
unit and display on the wireless remote controller will also change. However, the indoor unit does not operate
Hi POWER operation. Restore the display on the wireless remote controller pushing Hi POWER button.
2. COMFORT SLEEP
When COMFORT SLEEP is transmitted from wireless remote controller, the receiving sound will be heard from
the indoor unit and the display on the wireless remote controller will also be changed as same as Hi POWER
operation. However, the set temperature and the fan speed will not be automatically adjusted. Only off timer
function is activated.
3. Units other than the Header unit cannot be operated with remote controller and the TEMPORARY
operation.
When operating air conditioner with wireless remote controller transmission should be sent to the Header unit.
Header and follower indoor units are decided through address setting upon installation. Follower unit will not
receive any signals from wireless remote controller.
Air conditioner will not work even if the temporary operation button on the follower unit is pressed.
(Some Follower units may receive SWING and FIX, but these operations are performed only on the unit that
received the signal.)
(When wireless remote controller is used, only the Header unit receives SWING signal. If the SWING signal is
transmitted to follower unit, the sound to refuse receiving signal (3 beeps) is heard and the follower unit does not
receive the signal.
For FIX operation, both Header and follower unit perform the operation by itself. When wired remote controller is
used, air
fl
ow direction can be changed on each unit by selecting the indoor unit.)
4. TIMER lamp lights up only on the Header unit.
When the timer is set with wired remote controller, even the TIMER lamp on the Header unit will not light up.
Owner’s Manual
- 6 -
6-EN
