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4-3. Wiring System Diagram
(1) See the section “4-2. Wire Length and Wire Diameter for
Power Supply System” for the explanation of “A,” “B,” “C,”
“D,” “E” and “F” in the above diagram.
(2) The basic connection diagram of the indoor unit shows the
6P terminal board, so the terminal boards in your equipment
may differ from the diagram.
(3) Refrigerant Circuit (R.C.) address should be set before
turning the power on.
(4) Regarding the R.C. address setting, it can be executed by
remote controller automatically. See the section “7-4. Auto
Address Setting”.
CAUTION
(1) When linking outdoor units in a network, see the section “ATTENTION!”.
(2) Do not install the inter-unit control wiring in a way that forms a loop.
(3) Do not install the 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.
Outdoor unit
Central Controller
Outdoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit
More than 2m required
Outdoor unit
Branch point
Outdoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Branch point
Outdoor unit
Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit
Outdoor unit Outdoor unit
Prohibited
Prohibited
NO
00_340994_2WAY_Eng.indb 31 2022/8/4 14:28:42
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