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13. Group connection
NOTE: Group control cannot be used together with WLAN Adapter.
Installation procedure for group control system:
A number of indoor units can be operated at the same time using a single remote controller.
NOTE: When different type of indoor units (such as wall mounted type and cassette type, cassette
type and duct type, or other combinations) are connected using group control system, some
functions may no longer be available.
1. Connect up to 16 indoor units in a system.
Wiring length limitation
I.U.
I.U.
B
A
Remote controller
A, B, C, D, E: Remote controller cable
Example of wiring method
Indoor unit 1
Indoor unit 2
1 2
R W
Remote controller
Example of wiring method
Indoor unit 1
Indoor unit 2
1 2
R W
Remote controller
- 250 -
I.U.
I.U.
C
D
E
A + B + C + D + E ≤ 500 m
Indoor unit 3
Bus wire
Remote
controller cable
Indoor unit 3
Bus wire
Remote
controller cable
Indoor unit 4
Indoor unit 4
13. Group connection
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