Panasonic S-45PU1E5 Technical Data & Service Manual page 362

1
Automatic Address Setting
Basic wiring diagram
Link wiring
N OTE
A terminal plug (black) is attached to each of the outdoor unit control PCBs.
At only one outdoor unit, leave the terminal plug short-circuit socket on the "Yes" side.
At all the other outdoor units, change the socket (from "Yes" to "No").
A maximum of 8 indoor units can be connected to 1 remote controller for group control.
System address
rotary switch on the
outdoor unit PCB
Terminal board 1, 2
Outdoor unit
Terminal board 1, 2
Indoor unit
Remote controller
Automatic address setting from the outdoor unit (Y1 type)
Case 1
If the power can be turned ON separately for the indoor and outdoor units in each system:
The indoor unit addresses can be set without running the compressor.
Be sure to use a jig for short-circuiting.
(1) Turn on the indoor and outdoor unit power for refrigerant system 1.
Short-circuit the AUTO ADD (CN041) pin.
Communication for automatic address setting begins.
LED 1 and 2 on the outdoor unit control PCB blink alternately, and turn OFF when address setting is completed.
(2) Next, turn ON the power only at the indoor and outdoor units in a different system. Short-circuit the AUTO ADD
(CN041) pin.
LED 1 and 2 on the outdoor unit control PCB blink alternately, and turn OFF when address setting is completed.
Repeat the same procedure for each system and complete automatic address setting.
(3) Operation using the remote controller is now possible.
Refrigerant
system No. 1
(Change setting to "1")
No. 2
No. 1
Inter-unit
control
wiring
1-1 1-2
Remote control communication
wiring for group control
↓
↓
↓
<Approximately 4 – 5 minutes are required.>
↓
↓
↓
Refrigerant
system No. 2
(Change setting to "2")
Change the
terminal plug
No. 3
(black) short-
circuit socket
2-1 2-2
Remote controller
1-352
Refrigerant
system No. 3
(Change setting to "3")
Change the
terminal plug
(black) short-
circuit socket
Inter-unit control
wiring
3-2
3-1
Remote controller