16
CAUTION
(1) When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all outdoor units
except any one of the outdoor units.
(When shipping: In shorted condition.)
For a system without link (no wiring connection 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.
Outdoor unit Outdoor unit Outdoor unit
Indoor unit Indoor unit Indoor unit Indoor unit
Prohibited
Prohibited
Indoor unit
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting.
Outdoor unit Indoor unitIndoor unit
Indoor unitIndoor unit
NO
Branch point
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
Outdoor unit
Outdoor unit
Outdoor unit
: Branch point
Indoor unit
Indoor unit Indoor unit
Indoor unitIndoor unit
Indoor unit
Indoor unit
More than 2m required
Central Controller
(5) Use shielded wires for inter-unit control wiring (C) and ground the
shield on both sides, otherwise misoperation from noise may occur.
Connect wiring as shown in Section “4-3. Wiring System Diagrams”.
(6) • Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 or 3 *1.5 mm
2
flexible cord. Type designation 60245 IEC 57 (H05RN-F, GP85PCP etc.) or heavier cord.
•
Use the standard power supply cables for Europe (such as H05RN-F or H07RN-F which conform to CENELEC (HAR) rating
specifications) or use the cables based on IEC standard. (60245 IEC57, 60245 IEC66)
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 terminal screw.
(Functional earthing) (Functional earthing)
Shielded wire
00_301040_all.indb 16 2018/5/25 10:20:24
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