Panasonic S-22MY2E5 (CZ-KPY3) Series Installation Instructions Manual page 11

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. (Fig. 4-3)
Outdoor unit
Indoor unit
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting. (Fig. 4-4)
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
(Branches that are less than 1 m are not included in the total branch number.) (Fig. 4-5)
Branch
Point
16 or fewer
(5) Use shielded wires for inter-unit control wiring (c) and ground the shield on both sides, otherwise misoperation from noise
may occur. (Fig. 4-6)
Connect wiring as shown in Section "4-3. 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. (60245 IEC57, 60245 IEC66)
• Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 or 3 *1.5 mm
flexible cord. Type designation 60245 IEC 57 (H05RN-F, GP85PCP etc.) or heavier cord.
Outdoor unit
Indoor unit
Outdoor unit Indoor unit
NO
Indoor unit
Outdoor unit
Indoor unit Indoor unit
more than 1 m
Indoor unit Indoor unit
more than 1 m
Indoor unit
less than 1 m
Indoor unit
Shielded wire
Ground
Outdoor unit
Prohibited
Indoor unit Indoor unit
Indoor unit
Indoor unit
Branch point
Outdoor unit
Indoor unit
Indoor unit
Ground
11
Prohibited
Indoor unit
Fig. 4-3
Fig. 4-4
Outdoor unit
Indoor unit
Indoor unit
Fig. 4-5
Fig. 4-6
2