Sanyo CH2442 Installation Instructions Manual page 63

7-16. Basic Wiring Diagram
CAUTION
Group
control
Connection wiring
for group control
1 2
Terminal
3P
1 2
Indoor unit Indoor unit
No. 1
1 2
1 2
Outdoor unit
: Ground (earth)
7 7 7 7 7
RC
(WL)
Wiring procedure
Install the wiring according to the above wiring
diagram.
The address setting is automatically ex-
ecuted after turning on the system.
An indoor unit address is assigned to each
indoor unit.
Operation takes place successively at
intervals of 1 second, by using combinations
of the address setting of each unit.
Install wiring correctly
(incorrect wiring will damage
the equipment).
Standard
remote control
1 2
1 2 1 2
Indoor unit Indoor unit
No. 2 No. 3
1 2 1 2
Inter-unit control wiring
Indoor
unit 1
Group-control wiring
Use shielded wires for inter-unit control wiring and
ground the shield on both sides. (Fig. 7-25)
Otherwise misoperation because of noise may
occur.
Multiple
remote control
1 2 1 2
1 2
No. 8
1 2
2036_M_I
Indoor
unit 2
62
S4359146
Shielded wire
ground ground
0797_M_I
Fig. 7-25
Inter-unit wiring
Indoor Indoor
unit 7 unit 8
(Main) (Sub)