Basic wiring diagram: Example (2)
• If link wiring is used
* When multiple outdoor main units exist, remove the socket that is used to short-circuit the terminal plug (CN003) from all outdoor unit
PCBs except for 1. Alternatively, move the sockets to the "OPEN" side.
No. 1 (main unit) settings
System address
(system 1 setting)
(S002)
(S003)
ON
2
1
No. of
outdoor units
(S006)
(3 units
ON
setting)
1
Outdoor unit
system 1
To other system
link wiring
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. of indoor units
(13 units setting)
(S004)
ON
OFF
(S005)
ON
ON
OFF
2
3
1
Unit
(S007)
ON
number
ON
ON
setting
(unit No. 1)
2
3
OFF
1
2
3
OFF
Leave the socket
Unit
that is used to short-
No. 1
circuit the terminal
(Main)
plug. (CN003)
1-1
Indoor unit
Remote
controller
No. 1 (main unit) settings
System address
No. of indoor units
(system 2 setting)
(9 units setting)
(S004)
(S002)
(S003)
ON
ON
1
2
OFF
(S005)
ON
1
2
No. of
Unit
(S006)
outdoor units
number
ON
(2 units
ON
setting
setting)
(unit No. 1)
1
2 3
OFF
Unit
Outdoor unit
No. 1
(Main)
system 2
Indoor unit
2-1
Remote
controller
No. 2 (sub unit)
settings
Unit
(S007)
ON
number
ON
setting
(unit No. 2)
OFF
1
2
3
Unit
No. 2
(Sub)
Inter-unit control wiring
1-2
1-3
Remote controller
communication
ON
No. 2 (sub unit) settings
3
OFF
Unit
(S007)
number
ON
ON
setting
(unit No. 2)
2
3
OFF
1
Leave the socket
that is used to open
circuit the terminal
plug (CN003).
Inter-unit control wiring
2-2
Remote controller
communication
42
No. 3 (sub unit)
settings
Unit
(S007)
number
ON
setting
(unit No. 3)
1
2
3
Unit
No. 3
(Sub)
Inter-outdoor unit
control wiring
1-13
wiring
(S007)
ON
ON
OFF
1
2
3
Unit
No. 2
(Sub)
Inter-outdoor unit
control wiring
wiring
ON
OFF
2-9
<Case 1>
<Case 2>
<Case 3>
Fig. 7-6