Toshiba RAV-HM561KRTP-E Installation Manual page 35

Group control for system of multiple units
One group can control up to 16 (TU2C-Link) or 8 (TCC-Link) indoor units with one remote controller.
(Refer to the Wiring specifications)
Group control in single system
Outdoor unit
Indoor unit
Remote controller
• 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
simultaneous 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
Indoor No. Indoor unit
(example of
random setup)
After setup of
automatic
Address: 1-1-2
address
Line address
Indoor address
(example of address
setup change)
After setup
Address: 1-1-1
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
Finish of address setup by power-ON
Procedure
example 1
Outdoor unit
Indoor unit Indoor unit
Address: 2-1-2 Address: 3-3-1
Group address
Address: 2-1-2 Address: 2-2-2
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Installation Manual
Outdoor unit Outdoor unit
Indoor unit Indoor unit
34-EN