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(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.(Fig.9-3)
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes
mis-address setting.(Fig.9-4)
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or
fewer.(Branches that are less than 1m are not included in the total branch number.)(Fig.9-5)
(5) Use shielded wires for inter-unit control wiring(c)
which shielded woven mesh grounded on both
sides, otherwise misoperation from noise may
occur.(Fig.9-6)
Connect wiring as shown in Section" 9.3.Wiring
System Diagrams".
(6) 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.(245 IEC57, 245
IEC66)
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
Fig.9-6
to connect wiring to the terminal" and
fasten the wire securely with the terminal
screw.
15
Fig.9-3
Fig.9-4
Fig.9-5
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