63
RC
(WD)
6-4. Wiring System Diagram for Group Control
This diagram shows when several units (maximum
of 8) are controlled by a remote controller (main
unit).
In this case, a remote controller can be connected
at any indoor unit.
Wiring procedure
Wire according to the diagram at right:
Address setting is executed automatically when
the outdoor unit is turned on.
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 of
them can be used), one is the main remote
controller and the other is the sub-remote
controller.
To set up a sub-remote controller, change its
remote control address connector (RCU. ADR)
located on its PCB from main to sub position
(main: when shipped from factory).
(
su
b)
1 2
Wire joi
n
t
Remote
co
n
troller
(mai
n
)
: Gro
un
d (earth)
Co
nn
ectio
n
wiri
ng
for
g
ro
u
p co
n
trol
1 2
U1 U2
U1 U2
U1 U2
U1 U2
U1 U2
U1 U2
U1 U2
U1 U2
1 2
O
u
tdoor
un
it
I
n
door
un
it
No. 1
1 2
O
u
tdoor
un
it
I
n
door
un
it
No. 2
1 2
O
u
tdoor
un
it
I
n
door
un
it
No.
3
1 2
O
u
tdoor
un
it
I
n
door
un
it
No.
8
U1 U2
U1 U2
1 2
: Gro
un
d (earth)
O
u
tdoor
un
it
I
n
door
un
it
No. 1
1 2
Remote
co
n
troller
I
n
ter-
un
it
co
n
trol
wiri
ng
Wire joi
n
t
07-115 SSHP_II 5/7/07 4:00 PM Page 63
