Toshiba RAV-SM2242DT-TR Electrical Connection, 94, nWire connection, nWiring diagram, Requirement

Concealed Duct High Static Pressure Installation Manual

8 ELECTRICAL CONNECTION

Concealed Duct High Static Pressure Installation Manual

nWire connection

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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 inter-connecting wires when peeling them.

•Use the power cord and Inter-connecting 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 220–240V 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.

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.

nWiring diagram

Outdoor Input power 380-415V 3N~, 50 Hz

L1

L2

Outdoor

L3unit

N

1 2 3

Circuit breaker (Leakage breaker)

Indoor Fan Input power
220-240V~, 50 Hz	1 2 3

LIndoor

N unit

A B

Circuit breaker (Leakage breaker)

Wired remote controller

nPower and Wiring Specification

Indoor fan Power supply	220-240V~, 50 Hz
Maximum running current	15A
Fuse rating	25A
Indoor fan power supply wire∗	3 × 2.5mm² or more
	(H07 RN-F or 60245 IEC 66)
System interconnecting wires∗	4 × 1.5mm² or more
	(H07 RN-F or 60245 IEC 66)
∗ Number of wire × wire size

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. 100mm) 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>

			Electrical control
	System interconnecting	Wired remote controller connecting	box cover
Indoor fan power supply	Terminal block	Terminal block
Terminal block
		Fixing screw
Bushing

Indoor fan	Wired
power supply wire	remote controller wire
System interconnecting wire	Cord clamp

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