Toshiba RAV-HM301SDTY-E Installation Manual page 28

IM_D0X7205001-01_EN.book Page 134 Friday, May 19, 2023 9:06 PM
Remote controller wiring
Remote controller wiring, remote controller inter-unit wiring Wire size: 2 × 0.5 to 2.0 mm
Total wire length of remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + ... Ln
Total wire length of remote controller inter-unit wiring = L1 + L2 + ... Ln
* The remote controller wiring length differs depending on the remote controller used. For details, refer to the
Installation Manual attached to the remote controller.
CAUTION CAUTION
The remote controller wire and Indoor / Outdoor connecting wires cannot be parallel to contact each other and
cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise or
other factor.
 Communication line
TU2C-Link can be used with these models.
If the indoor unit and the connected remote controller / remote sensor are all TU2C-Link models, TU2C-Link
communication will be performed automatically.
For details of communication type, refer to the following table.
Communication type and model names
Communication type
Indoor unit RAV-HM∗∗∗ series model
RBC-A∗∗U∗∗∗
Wired remote controller
↑
This letter indicates U series model.
RBC-AXU∗∗∗
Wireless remote controller kit &
↑
receiver unit
This letter indicates U series model.
TCB-TC∗∗U∗∗∗
Remote sensor
↑
This letter indicates U series model.
CAUTION CAUTION
In the following cases, change the communication type to TCC-Link with the wired remote controller by referring to
the procedure of Communication type procedure of "8. Electrical connection" for normal operation.
• When performing group control in combination with the indoor unit dedicated to TCC-Link (other than RAV-HM∗∗∗
series).
• When connecting to the central control device dedicated to TCC-Link.
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2
In case of wired type only Up to 500 m
2 remote controllers Up to 300 m
In case of wireless type included Up to 400 m
Up to 200 m
TU2C-Link TCC-Link
Other than RAV-HM∗∗∗ series
Other than U series
Other than U series
Other than U series
Indoor unit Indoor unit
Remote L
controller
L1
wiring
Remote
Remote controller inter-unit wiring
controller
Max. number of connect-able indoor units, and communication type
Indoor unit RAV-HM∗∗∗
Remote controller
Remote sensor
Communication type TU2C-Link
Max. number of connectable units
∗ : Other than RAV-HM
∗∗∗ and U series
 Wiring between indoor unit and outdoor unit
1. Figure below shows the wiring connections between the indoor and outdoor units and between the indoor units
and remote controller. The wires indicated by the broken lines or dot-and-dash lines are provided at the locally.
2. Refer to the both indoor and outdoor unit wiring diagrams.
3. The power of the indoor unit is supplied from the outdoor unit.
Wiring diagram
Single system
Remote controller
Remote controller wiring
A B
Indoor side
1 2 3
Indoor / Outdoor
connecting wires
Outdoor side 1 2 3
Power supply
* Use 2-core shield wire (MVVS 0.5 to 2.0 mm
systems to prevent noise problems. Connect both ends of the shield wire to earth leads.
* Connect earth wires for each indoor unit in the simultaneous twin systems.
– 134 –
Indoor unit Indoor unit
L 2 L n
For number of Max. connect-able units,
refer to the following table.
Unit type
RAV-HM∗∗∗ ∗
U series ∗ U series
TCC-Link
16 8
Simultaneous twin system
Remote controller
Remote controller inter-unit wiring
Remote controller wiring
A B
Indoor side
Indoor
side
1 2 3
Indoor / Outdoor connecting
wires
Indoor power
Outdoor side 1 2 3
inter-unit wiring
Power supply
2
or more) for the remote controller wiring in the simultaneous twin
∗
∗
A B
1 2 3
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