Sanyo ECO R410A User Manual

Page 35

Outdoor unit

Indoor unit

more than 3.3 ft.

Branch
point

16 or fewer

Indoor unit

less than 3.3 ft.

Indoor unit

Outdoor unit

Indoor unit

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. 4-1)

Outdoor unit

Prohibited

Indoor unit

Fig. 4-1

Fig. 4-2

Fig. 4-3

CAUTION

(

3) Do not install inter-unit control wiring such as star branch wir-

ing. Star branch wiring causes misaddress setting. (Fig. 4-2)

(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.

(Branches less than 3.3 ft. are not included in the total branch number.) (Fig. 4-3)