Electrical Connection; Wiring Diagram - Toshiba RAV-SM2242DT-E Installation Manual

8

Electrical connection

WARNING
1. Using the specified wires, ensure to connect the
wires, and fix wires securely so that the external
tension to the wires do not affect the connecting
part of the terminals.
Incomplete connection or fixation may cause a fire,
etc.
2. Be sure to connect earth wire. (grounding work)
Incomplete grounding cause an electric shock.
Do not connect ground wires to gas pipes, water
pipes, lightning rods or ground wires for telephone
wires.
3. Appliance shall be installed in accordance with
national wiring regulations.
Capacity shortage of power circuit or incomplete
installation may cause an electric shock or a fire.
CAUTION
• If incorrect / incomplete wiring is carried out, it will
cause an electrical fire or smoke.
• Be sure to install an earth leakage breaker that is not
tripped by shock waves.
If an earth leakage breaker is not installed, an electric
shock may be caused.
• Be sure to use the cord clamps attached to the
product.
• Do not damage or scratch the conductive core and
inner insulator of power and system interconnection
wires when peeling them.
• Use the power cord and system interconnection wire
of specified thickness, type, and protective devices
required.
REQUIREMENT
• For power supply wiring, strictly conform to the Local
Regulation in each country.
• Power supply for indoor unit must be exclusive
and separated from the one for outdoor unit.
• For wiring of power supply of the outdoor units, follow
the Installation Manual of each outdoor unit.
• Never connect 220–240 V power to the terminal
blocks ( A , B , etc.) for control wiring.
(Otherwise, the system will fail.)
• Perform the electric wiring so that it does not come to
contact with the high-temperature part of the pipe.
The coating may melt resulting in an accident.
• After connecting wires to the terminal blocks, provide
a trap and fix wires with the cord clamp.
• Run the refrigerant piping line and control wiring line in
the same line.
• Do not turn on the power of the indoor unit until
vacuuming of the refrigerant pipes completes.
23-EN
Remote controller wiring
2-core non polarity wire is used for the remote
controller wiring.
Wiring
1. Figure below shows the wiring connections indoor
power line and between the indoor and outdoor units
and between the indoor units and remote controller.
The wires indicated by the dash lines are provided at
the installation place.
2. Insulate the unsheathed redundant cords
(conductors) with electrical insulation tape.
Process them so that they do not touch any electrical
or metal parts.

Wiring diagram

Outdoor Input power
380-415 V 3 N~, 50 Hz
L
1
L
2
Outdoor
L
3 unit
N
Circuit breaker
1 2 3
(Leakage breaker)
Indoor Fan Input power
220-240 V~, 50 Hz
1 2 3
L Indoor
N unit
A B
Circuit breaker
(Leakage breaker)
Wired remote
controller
Power and wiring
specification
Indoor fan power
220-240 V~, 50 Hz
supply
Maximum running
15 A
current
Fuse rating 25 A
2
3 x 2.5 mm or more
Indoor fan power
supply wire*
(H07 RN-F or 60245 IEC 66)
2
System 4 x 1.5 mm or more
interconnection wires*
(H07 RN-F or 60245 IEC 66)
*Number of wire x wire size
Wire connection
REQUIREMENT
• Be sure to connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
• Be sure to 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, etc.
• 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)
2. Tighten the screws of the terminal block, and fix the wires with cord attached to the electrical control box.
(Do not apply tension to the connecting section of the terminal block.)
3. Mount the cover of the electrical control box without pinching wires.
<Terminal block of electrical control box>
System
interconnecting
Indoor fan power
terminal block
supply terminal
block
Bushing
Indoor fan power supply
wire
System interconnection
wire
– 12 –
Wired remote controller
connecting Terminal
block
Fixing screw
Wired remote
controller wire
Cord clamp
Electrical
control box
cover
EN
24-EN