Toshiba RAV-SM182CTP-UL Installation Manual page 20

 Group control
Simultaneous twin, triple or double twin system
A combination with an outdoor unit allows simultaneous ON / OFF operation of the indoor units. The following
system patterns are available.
- Two indoor units for the twin system
- Three indoor units for the triple system
- Four indoor units for the double-twin system
 Twin system
Outdoor unit
Indoor unit Indoor unit
Remote
controller
Finish of address setup by power-ON
 Triple system
Outdoor unit
Indoor unit Indoor unit Indoor unit
Remote
controller
Finish of address setup by power-ON
 Double twin
Outdoor unit
Indoor unit Indoor unit Indoor unit
Remote
controller
Finish of address setup by power-ON
• For wiring procedure and wiring method, follow to the "Electrical connection" in this manual.
• When the power supply has been turned on, the automatic address setup starts and which indicates that
address is being set up flashes on the display part.
During setup of automatic address, the remote controller operation is not accepted.
Required time up to the finish of automatic addressing is approx. 5 minutes.
37-EN
Indoor unit
� 19 �
Group control for system of multiple units
One remote controller can control maximum 8 indoor units as a group.
 Group control in single system
Outdoor unit Outdoor unit Outdoor unit
Indoor unit Indoor unit Indoor unit
Remote controller
Finish of address setup by power-ON
• For wiring procedure and wiring method of the individual line (Identical refrigerant line) system, follow to
"Electrical connection".
• Wiring between lines is performed in the following procedure.
Connect the terminal block (A/B) of the indoor unit connected with a remote controller to the terminal blocks
(A/B) of the indoor units of other indoor units by wiring the inter-unit wire of the remote controller.
• When the power supply has been turned on, the automatic address setup starts and which indicates that
address is being set up flashes on the display part in about 3 minutes. During setup of automatic address, the
remote controller operation is not accepted.
Required time up to the finish of automatic addressing is approx. 5 minutes.
NOTE
In some cases, it is necessary to change the address manually after setup of the automatic address according
to the system configuration of the group control.
• The follow mentioned system configuration is a case when complex systems in which systems of the
simultane ous twin and simultaneous triple unit is controlled as a group by a remote controller.
(Example) Group control for complex system
Line system
<Single system> <Twin system>
Outdoor unit Outdoor unit
Indoor No.
Indoor unit Indoor unit
(Example of random
setup)
After setup of
automatic
Address: 1-1-2 Address: 2-1-2
address
Line address Group address
Indoor address
(Example of address setup change)
After setup
Address: 1-1-1 Address: 2-1-2
change of
manual address
The above address is set by the automatic addressing when the power is turned on. However, line
addresses and indoor addresses are set randomly. For this reason, change the setting to match line
addresses with indoor addresses.
Outdoor unit Outdoor unit
Indoor unit Indoor unit
(Max. 8 units)
Procedure
example 1
<Triple system>
Outdoor unit
Indoor unit
Indoor unit Indoor unit
Remote controller
Address: 3-3-1 Address: 3-1-2 Address: 2-2-2 Address: 1-2-2
Address: 2-2-2 Address: 3-1-2 Address: 3-3-2
Address: 3-2-2
Indoor unit
38-EN