Panasonic U-72MF1U9 Service Manual page 11

3. Auto Address Setting
Basic wiring diagram: Example (2)
No. 1 (main outdoor unit) settings
System address
(system 1 setting)
(S002) (S003)
ON
1 2
No. of
(S006)
outdoor units
ON
(3 units
setting)
1
Outdoor unit
No. 2
Refrigerant
circuit
To other system
link wiring
· 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
• If link wiring is used
No. of indoor units
(13 units setting)
(S004)
ON
OFF
(S005)
ON
ON
OFF
1 2 3
Unit
(S007)
ON
ON
number
ON
setting
2 3
OFF (unit No. 1)
2 3 OFF
1
Leave the socket that
Unit
is used to short-circuit
No. 1
system 1
the terminal plug.
(Main)
(CN003)
Inter-unit control wiring
1-1 1-2
Indoor unit
Remote
controller
No. 1 (main unit) settings
System address No. of indoor units
(9 units setting)
(system 2 setting)
(S004)
(S002) (S003)
ON
ON
1 2
OFF (S005)
ON
1 2 3
No. of
Unit
(S006)
ON
outdoor
number
ON
units (2 units
setting
setting)
(unit No. 1)
1 2 3 OFF
Unit
Outdoor unit
No. 1
system 2
(Main)
Indoor unit
2-1
Remote
controller
Make settings as appropriate for the cases listed below.
(Refer to the instructions on the following pages.)
* When multiple outdoor main units exist, remove the socket that is
used to short-circuit the terminal plug (CN003) from all outdoor
main unit PCBs except for one unit.
Alternatively, move the sockets to the "OPEN" side.
No. 2 (sub unit)
Unit
(S007)
ON
number
ON
setting
(unit No. 2) OFF
1 2 3
Unit
No. 2
(Sub) Outdoor main/sub
control wiring
1-3
Remote controller
communication wiring
ON
No. 2 (sub unit) settings
OFF
Unit
(S007)
(S007)
number
ON
ON
ON
setting
(unit No. 2)
1 2 3
OFF
1 2 3
Unit
Move the socket to
No. 2
the "OPEN" side
(Sub)
(CN003).
Outdoor main/sub control wiring
Inter-unit control wiring
2-2
Remote controller
cross-over wiring
Case 2
Case 3A
Case 3B
1 - 7
Test Run
No. 3 (sub unit)
Unit
(S007)
ON
number
ON
setting
(unit No. 3)
OFF
2 3
1
Unit
No. 3
(Sub)
1-13
ON
OFF
2-9
1
2
3
4
5
6
7