Toshiba RAV-SM564UTP-E Installation Manual page 40

+001114119401_01EN.book Page 39 Wednesday, October 31, 2012 4:56 PM
 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 Simultaneous twin system
Remote controller
Remote controller
Remote controller wiring
Remote controller wiring
A B
Indoor side
Indoor side
1 2 3
System interconnection
System interconnection wires
wires
Outdoor side 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
Indoor power
Outdoor side 1 2 3
inter-unit wiring
Power supply
Triple
* Use 2-core shield wire (MVVS 0.5 to 2.0 mm 2
simultaneous triple and simultaneous double twin 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, simultaneous triple and simultaneous double
twin systems.
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Remote controller
inter-unit wiring
A B A B
Indoor
side
1 2 3 1 2
Indoor power
1 2 3
inter-unit wiring
Power supply
Remote controller Remote controller
inter-unit wiring inter-unit wiring
A B A B A B
Indoor side Indoor side
1 2 3 1 2 3 1 2
Indoor power Indoor power
inter-unit wiring inter-unit wiring
Double twin
or more) for the remote controller wiring in the simultaneous twin,
– 39 –
 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)
1. Remove the cover of the electrical control box by taking off the mounting screws (2 positions) and
pushing the hooking section. (The cover of the electrical control box remains hanged to the hinge.)
2. Connect the system interconnection wires and remote controller wire to the terminal block of the
electrical control box.
3. Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electrical control box.
(Do not apply tension to the connecting section of the terminal block.)
4. Using the attached heat insulation material, seal the pipe connecting port. Otherwise, dewing may be
3
caused.
5. Mount the cover of the electrical control box without pinching wires.
(Mount the cover after wiring on the ceiling panel.)
▼ Heat insulation to wiring
connecting port
3
Power supply terminal block
1 2 3
Cord clamp
Adhered surface
Screws (2 positions)
Hinge
Notched section
Side D (Space: 8.5mm)
Side C (Space: 4mm)
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
Remote
with one cable clamp.
controller
terminal
Wire Cable clamping
block Specification
type
Cabtyre 3-core stranded
cable wire 2.5mm²
Cabtyre 3-core stranded
cable wire 1.5mm²
Louver connector
(CN510:White)
position
Side D
Side C
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