SA SPW-C0705DZH8 Instrucciones De Instalación página 31

CAUTION
(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 connection 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. 4-1)
Outdoor unit
Indoor unit
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting.
Outdoor unit
NO
(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. 4-3)
Branch
Point
16 or fewer
(5) Use shielded wires for inter-unit control wiring (c)
and ground the shield on both sides, otherwise
misoperation from noise may occur. (Fig. 4-4)
Connect wiring as shown in Section "4-3. Wiring System
Diagram".
Shielded wire
Ground
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Outdoor unit
Indoor unit
more than 1 m
Indoor unit
more than 1 m
Indoor unit
less than 1 m
Indoor unit
Ground
Fig. 4-4
Outdoor unit
Prohibited
Indoor unit Indoor unit
Indoor unit
Indoor unit
Branch point
Outdoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
WARNING
Loose wiring may cause the terminal to overheat or result
in unit malfunction. A fire hazard may also occur. Therefore,
ensure that all wiring is tightly connected.
When connecting each power wire to the terminal, follow the
instructions on "How to connect wiring to the terminal" and
fasten the wire securely with the fixing screw of the terminal
plate.
29
Prohibited
Indoor unit
Fig. 4-1
Fig. 4-2
Outdoor unit
Indoor unit
Indoor unit
Fig. 4-3