Panasonic U-4LE1R8 Service Manual page 12

3. Auto Address Setting
Basic wiring diagram: Example (2)
• If link wiring is used
* When multiple outdoor units exist, remove the socket that is used to short-circuit the terminal plug (CN-TERMINAL) from all
outdoor unit PCBs except for 1. Alternatively, move the sockets to the "OPEN" side.
1
Make settings as appropriate for the cases listed below.
• Indoor and outdoor unit power can be turned ON for each system separately.
• Indoor and outdoor unit power cannot be turned ON for each system separately.
Automatic address setting in Heating mode
Automatic address setting in Cooling mode
No. 1 unit settings
System address No. of indoor units
(system 1 setting)
(S003) (S002)
ON
ON
2
1
OFF
Leave the socket
that is used to
Outdoor unit Unit
No. 1
system 1 short-circuit the
terminal plug.
(CN-TERMINAL)
Inter-unit control wiring
Indoor unit 1-1 1-2
Remote
controller
No. 2 unit settings
System address
(system 2 setting)
(S002) (S003)
ON
ON
1 2
OFF
Outdoor unit Unit
No. 1
system 2
Indoor unit
To other system
link wiring
Remote
controller
(6 units setting)
(S004)
1-3
Remote controller
communication wiring
No. of indoor units
(7 units setting)
(S004)
Leave the socket
that is used to open
circuit the terminal
plug (CN-TERMINAL).
Inter-unit control wiring
2-1 2-2
Remote controller
communication wiring
1-6
Mini VRF SYSTEM
Address Settings
1-6
2-7
<Case 2>
<Case 3A>
<Case 3B>