Panasonic 2WAY MULTI U-16GE3E5 Test Run Manual page 23

 Control wire
* Indoor/outdoor control wire connection example
 Bus system (can be branched to max 16 location). Outdoor link is basic. (Figure 5)
 In  , if there are more than 17 branches, reduce the number of branch locations. (Figure 6)
<Example>Putting 2 refrigerant systems to 1 wiring system
Outdoor unit
Controller
Outdoor unit
At least 2 m
apart
Outdoor unit
Outdoor unit 1
Controller
Outdoor unit 2
Outdoor unit 3
Outdoor unit 4
Outdoor unit 5
II - 8
Indoor unit Indoor unit
Remote controller
Indoor unit Indoor unit
Remote controller
Indoor unit Indoor unit
No remote controller
Group control
Remote controller
Figure 5
Indoor unit Indoor unit
Remote controller
Indoor unit Indoor unit
Remote controller
Indoor unit Indoor unit
No remote controller
Group control
Remote controller
Indoor unit Indoor unit
Remote controller
Indoor unit Indoor unit
No remote controller
Group control
Remote controller
Figure 6
Indoor unit
Indoor unit
No remote
controller
Indoor unit
Indoor unit
Indoor unit
No remote
controller
Indoor unit
Indoor unit
No remote
controller
Indoor unit