Sanyo Mini ECO-i SPW-ASR74GXH56(A/B) Installation Instructions Manual page 42

05-194 5/27/05 5:06 PM
Basic wiring diagram: Example (2)
System address
(system 1 setting)
(S003)
ON
1
¥ Indoor and outdoor unit power can be turned ON for each system separatel y .
¥ Indoor and outdoor unit power cannot be turned ON for each system separatel y .
Automatic address setting in Heating mode
Automatic address setting in Cooling mode
Page 42
¥ If link wiring is used
No. 1 unit settings
No. of indoor units
(6 units setting)
(S004)
(S002)
ON
2
OFF
Leave the socket
that is used to
Outdoor unit Unit
short-circuit the
system 1 No. 1
terminal plug.
(CN33)
1-1
Indoor unit
Remote
controller
No. 2 unit settings
System address No. of indoor units
(7 units setting)
(system 2 setting)
(S002) (S003)
(S004)
ON
ON
1 2
OFF
Unit
Outdoor unit
No. 1
system 2
Indoor unit 2-1
To other system
link wiring
Remote
controller
Make settings as appropriate for the cases listed below.
(Refer to the instructions on the following pages.)
* When multiple outdoor units exist, remove the socket that
is used to short-circuit the terminal plug (CN33) from all
outdoor unit PCBs except for 1.
Alternatively, move the sockets to the OPEN side .
Inter-unit control wiring
1-2 1-3
Remote controller
communication wiring
Leave the socket
that is used to open
circuit the terminal
plug (CN33).
Inter-unit control wiring
2-2
Remote controller
cross-over wiring
Case 1
Case 2
Case 3
Fig. 7- 6
42
1-6
2-7