43
Outdoor unit
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
more than 1 m
more than 1 m
Branch
point
16 or fewer
Indoor unit
Indoor unit
Indoor unit
Indoor unit
less than 1 m
Indoor unit
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Outdoor unit
Indoor unit
NO
NO
Branch point
(1) When linking outdoor units in a network (S-net link system), disconnect the terminal extended from the
short plug (CN003, 2P Black, location: right bottom on the outdoor main control PCB) from all outdoor
units except any one of the outdoor units.
(When shipping: In shorted condition.)
Otherwise the communication of S-net link system is not performed. For a system without link (no con-
nection wiring between outdoor units), do not remove the short plug.
(2) Do not install the inter-unit control wiring in a way that forms a loop. (Fig. 5-1)
Outdoor unit
Outdoor unit
Outdoor unit
Prohibited
Prohibited
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Fig. 5-1
Fig. 5-2
Fig. 5-3
CAUTION
(3) Do not install inter-unit control wiring such as star
branch wiring. Star branch wiring causes mis-address
setting.
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
(Branches less than 1 m are not included in the total branch number.) (Fig. 5-3)
04-393 DC INV Tech p a-44 12/15/04 3:05 PM Page 43
