Group Control; Twin System - Toshiba RAV-SM404SDT-E Installation Manual

Slim Duct Type

Group control

Simultaneous twin system
A combination with an outdoor unit allows
simultaneous ON/OFF operation of two indoor
units for the twin system.

▼ Twin system

Outdoor unit
Indoor unit
Remote controller
Finish of address setup by power-ON
• For wiring procedure and wiring method, follow
to the "Electric work" 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.
In case of group control for system of
multiple units
One remote controller can control maximum 8
indoor units as a group.
▼ In case of group control in single system
Outdoor unit Outdoor unit Outdoor unit Outdoor unit
Indoor unit Indoor unit
Remote controller
Finish of address setup by power-ON
(Example) Group control for complex system
Line system
Indoor No.
(Example of random setup)
After setup of
automatic address
(Example of address setup change)
After setup change of
manual address
Indoor unit
Outdoor unit
Indoor unit Indoor unit Indoor unit
(Max. 8 units)
<Single system> <Twin system>
Outdoor unit Outdoor unit
Indoor unit Indoor unit
Address: 1-1-2 Address: 2-1-2
Line Group
address address
Indoor address
Address: 1-1-1 Address: 2-1-2
– 26 –
• For wiring procedure and wiring method of the
individual line (Identical refrigerant line) system,
follow to "Electric work".
• 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. 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 above mentioned system configuration is
a case when complex systems in which
systems of the multiple twin unit is controlled
as a group by a remote controller.
Procedure
example ➀
Indoor unit
The above address is set by the
automatic addressing when the
Address: 3-3-1
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.
Address: 2-2-2
Installation Manual
EN
26-EN