Sanyo SPW-C483GYH8 Service Manual page 154

1. Troubleshooting
CAUTION
(3) Don't install the inter-unit control wiring such as star
branch wiring.
Star branch wiring causes mis-address setting.
Outdoor unit
NG
(4) If branching the inter-unit control wiring, the number
of branch points should be 10 or less. (Branches
less than 1 m are not included in the total branch
number.)
Branch
point
10 or less
more than 1 m
less than 1 m
(5) Use shielded wires for inter-unit control wiring (c)
and ground the shielded on both sides, otherwise
misoperation from noise may occur.
All wiring except inter-unit control wiring (c) has
polarity.
Indoor unit
Indoor unit
Outdoor unit Outdoor unit
Indoor unit Indoor unit
more than 1 m
Indoor unit Indoor unit
Indoor unit
Indoor unit
III - 5
Outdoor unit
NG
Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
Branch point
Outdoor unit
Indoor unit
Indoor unit
Shielded wire
ground
Service Procedures
0824_M_I
Indoor unit
Indoor unit
0193_M_I
ground
0797_M_I
SM830052
3