Electrical Connection - Toshiba RAV-SM404SDT-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
• This indoor unit has no power cord.
• 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 interconnecting wires when peeling them.
• Use the power cord and Interconnecting wire of specified thickness, type, and protective devices required.
REQUIREMENT
• For power supply wiring, strictly conform to the Local Regulation in each country.
• 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 (
(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.
◆ Remote controller wiring
2-core non polarity wire is used for the remote controller wiring.
1
Connect the connecting wire to the terminal as identified with their respective numbers on the terminal block of
indoor and outdoor unit.
2
H07 RN-F or 60245 IEC 66 (1.5 mm or more)
2
Insulate the unsheathed redundant cords (conductors) with electrical insulation tape.
Process them so that they do not touch any electrical or metal parts.
25-EN
A , B , etc.) for control wiring.
– 13 –
Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers. Incorrect connection causes.
• Pass the wires through the bushing of wiring connection port of the indoor unit.
• Keep a margin (Approx. 100mm) 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 remove the electric parts cover, remove the cover plate and air filter.
• 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.)
• 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.)
• Set a loop for the connecting wire of the storing part of the indoor unit electric parts; otherwise the electrical control box cannot
be drawn out in service time.
• Mount the cover of the electrical control box without pinching wires.
Screw
(2 positions)
Cover plate
Power supply
terminal block
Earth
Cord clamp
Electrical control
box
Electrical control
box cover
Air filter
Remote controller Side D (Space: 8.5mm)
terminal block
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 with one cable clamp.
Wire Cable clamping
Specification
type position
Cabtyre 4-core stranded
Side D
cable wire 2.5mm²
Cabtyre 4-core stranded
Side C
cable wire 1.5mm²
26-EN