46
K
6-2. Basic Wiring Diagram (Twin, Triple, Double-Twin)
CAUTION
Install wiring correctly
(incorrect wiring will dam-
age the equipment).
●
Use shielded wires for remote control wiring and
ground the shield on one side. (Fig. 6-3) Otherwise
misoperation due to noise may occur.
Fig. 6-3
Fig. 6-4
Shielded wire
Ground
6-3. Wiring System Diagram for Group Control
This diagram shows when several units (maximum of
4) are controlled by a remote controller (master unit).
In this case, a remote controller can be connected at
any indoor unit.
Wiring procedure
Wire according to the right diagram:
●
Each successive unit will respond at 1-second
intervals following the order of the group address
when the remote controller is operated.
Group control using 2 remote controllers
It does not matter which of the 2 remote controllers
you set as the main controller.
When using multiple remote controllers (up to 2 can
be used), one serves as the main remote controller
and the other as the sub-remote controller.
1 2
1
1 2
1 2
1
1 2
1
1 2
1
Outdoor unit
Indoor unit
No. 4
Indoor unit
No. 3
Indoor unit
No. 2
Indoor unit
No. 1
1
Remote
controller
Connection wiring for
group control
Inter-unit
control
wiring
Terminal
3P
2
2
2
2
2
(sub)
3P terminal
base for remote
control wiring
Remote
controller
(main)
1
Indoor unit
No. 1
: Ground (earth)
Indoor unit
No. 2
Indoor unit
No. 4
Indoor unit
No. 3
Connection wiring
for group control
1
1
1 2
2
2
2
1
2
1
2
Fig. 6-5
04-393 DC INV Tech p 45-63 12/13/04 11:34 AM Page 46
