Toshiba RAV-GM901BTP-E Manual De Instalación página 17

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
System interconnection wires
1 2 3
Outdoor side
Power supply
Simultaneous triple and double twin system
Remote controller
Remote controller
inter-unit wiring
Remote controller
wiring
A B
Indoor side
Indoor side
1 2 3
System interconnection
wires
1 2 3
Outdoor side
Power supply
* Use 2-core shield wire (MVVS 0.5 to 2.0 mm
and simultaneous double twin systems to prevent noise problems. Be sure to connect both ends of the shield
wire to earth leads.
* Connect earth wires for each indoor unit in the simultaneous twin, simultaneous triple and simultaneous double
twin systems.
31-EN
Simultaneous twin system
Remote controller
Remote controller inter-unit wiring
Remote controller wiring
A B
Indoor side Indoor
side
1 2 3
System interconnection wires
1 2 3
Outdoor side
Power supply
Remote controller Remote controller
inter-unit wiring inter-unit wiring
A B A B
Indoor side Indoor side
1 2 3 1 2 3
Indoor power Indoor power
inter-unit wiring inter-unit wiring
Triple
Double twin
2 or more) for the remote controller wiring in the simultaneous triple
Wire connection
REQUIREMENT
Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
Pass the wires through the bushing of wire connection holes of the indoor unit.
Keep a margin (Approx. 100 mm) on a wire to hang down the electrical control box at servicing or other purpose.
The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)
Before performing wiring work in the electrical control box, remove the
air filter and the cover of the box (fixed with 2 screws).
Remove screw A, and loosen screw B.
Pull up and open the electrical control box cover.
Tighten the screws of the terminal block firmly, and fix the wires with
A B
the cord clamps attached to the electrical control box. (Do not apply
tension to the connecting section of the terminal block.)
1 2 3
Slide the electrical control box cover to install it. Do not pinch the wire
and make the gap as small as possible when installing the cover.
Indoor power
inter-unit wiring
A B
1 2 3
Indoor power
inter-unit wiring
50
Earth wire
Remote controller wiring
Strip off approx. 9 mm the wire to be connected.
Wiring diagram
Terminal block for remote
controller wiring of indoor unit
A
B
Remote controller wire
(Locally procured)
– 16 –
Side D (Space: 8.5 mm)
Cord clamp
Remote controller
wiring
Select side C or D for the power cable clamping position referring
to the following table according to the cable type and diameter.
* Cable clamp can be attached on either right or left side.
When twin system are connected, clamp two cables with one
Earth screw
cable clamp.
Wire type
Cabtyre cable
System interconnection
Cabtyre cable
wire
10 1 2 3
10
30
System interconnection wire
Terminal block
Remote
A
controller
B
unit
Electrical control
box cover
Loosen screw B
Remove screw A
Side C (Space: 4 mm)
Specifi cation Cable clamping position
4-core stranded wire 2.5 mm² Side D
4-core stranded wire 1.5 mm² Side C
See the figure on the left for
system interconnection wires to
the terminal block.
System interconnection wire
32-EN