3
3
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Control of 3-WAY FLOW LOGIC
3. Wired Remote Controller / NRCG-FL
■
■
Basic Wiring Diagram
CAUTION
Install wiring correctly
(incorrect wiring will dam-
age the equipment).
●
Use shielded wires for remote control wiring and
ground the shield on both sides. Otherwise misop-
eration due to noise may occur.
Shielded wire
Ground
1 2
1
1 2
1 2
1
1 2
1
1 2
1
: Ground
Outdoor unit
Indoor unit
No. 8
Indoor unit
No. 3
Indoor unit
No. 2
Indoor unit
No. 1
1
Group
control
Connection wiring
for group control
Standard
remote control
Multiple
remote control
1
1
1
Inter-unit control wiring
Terminal
3P
2
2
2
2
2
2
2
2
Remote
control wiring
Inter-unit wiring
Group-control wiring
(Main) (Sub)
Indoor
unit 8
Indoor
unit 7
Indoor
unit 2
Indoor
unit 1
■
■
Wiring System Diagram for Group Control
This diagram shows when several units (maximum of
8) 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 diagram at right:
●
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. 8
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. 8
Indoor unit
No. 3
Connection wiring
for group control
1
1
1 2
2
2
2
1
2
1
2
04-218 Airwell-3_1-38.qxp 01/06/2007 13:14 Page 32