Panasonic PAW-160MAH2L Installation Instructions Manual page 94

Electrical Wiring
5
94
> Note that setting 3 or more terminating resistances to "SHORT" (operative) is
prohibited.
Outdoor unit
Outdoor unit
Outdoor unit
● In case that the inter-unit control wiring in the link are mixed with 3-line and
2-line connections:
> Set the terminating resistance with the TERMINAL pin (CN-TERMINAL) on
the outdoor unit control PCB (note, that the outdoor unit is connected by 2-line
connection).
Upon shipment the terminating resistance is set to "SHORT" (operative).
Leave one unit in short circuit condition among outdoor units in the link. Change
to OPEN for other units. For a system without link (no wiring connection
between outdoor units), do not remove the short plug.
8. Do not install the inter-unit control wiring in a way that forms a loop.
Outdoor unit
Indoor unit Indoor unit
9. Do not install inter-unit control wiring such as star branch wiring. Star branch wiring
causes faulty address setting.
Outdoor unit
Central controller
Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit
Outdoor unit
Prohibited
Indoor unit
Prohibited
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Outdoor unit
Prohibited
Indoor unit Indoor unit
Indoor unit
Indoor unit
Branch point
AHU Kit – Installation Instructions – 09/2021