Panasonic S-22MU2E5BN Installation Instructions Manual page 39

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
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.
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.
(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. (60245 IEC57, 60245 IEC66)
Outdoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Prohibited
Indoor unit
Indoor unit
Indoor unit
Branch point
: Branch point
Indoor unit
Indoor unit
Indoor unit
(Functional earthing)
39
Prohibited
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Shielded wire
(Functional earthing)
Indoor unit
Indoor unit
Indoor unit