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3. Setting the address
(1) Setting the indoor unit addresses automatically
*
The method of setting the addresses differs depending on the wiring of the indoor unit control wire and power supply.
* The addresses of indoor units can be set automatically from the smallest address unit. The remote controller addresses
(group control and individual control) can also be set at the same time. The smallest address unit is the outdoor unit
that has the smallest setting of the outdoor unit address settings.
If the indoor/outdoor control wires are not connected to other W MULTI units or 3WAY MULTI outdoor units
(non-linked wiring)
• Indoor unit addresses can be set without actually running the outdoor units.
• Perform the procedure for automatic address setting using the outdoor unit with the smallest address
(See the sections on automatic address setting below.)
If the indoor/outdoor control wires are connected to other W MULTI units or 3WAY MULTI outdoor units (linked
wiring)
• Make sure the outdoor units are operating.
• Perform the procedure for automatic address setting using the outdoor unit with the smallest address.
(See the sections on automatic address setting below.)
• Use one of the following methods to set the addresses of indoor units depending on the wiring of the power supply.
Outdoor
unit
1-1
Outdoor
unit
1-2
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Basic wiring diagram : Example 1
Indoor/outdoor
control wire
Minimum
outdoor adress unit
Indoor/outdoor control wire
Remote controller
Tubing
System 1
Remote controller
Basic wiring diagram : Example 2
Out-
door
unit
1-1
Out-
door
unit
1-2
Out-
door
unit
2-1
Out-
door
unit
2-2
Out-
door
unit
3-1
Indoor unit Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor/outdoor control wire
Indoor/outdoor control wire
Indoor/outdoor control wire
Indoor/outdoor control wire
Indoor/outdoor control wire
Indoor unit Indoor unit Indoor unit
Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
Tubing
Piping
Tubing
Indoor/outdoor
cnotrol wire
Bus wiring for remote controller group control
System 1 (W MULTI)
System 2 (W MULTI)
System 3 (3WAY MULTI)
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