Electrical connection – Toshiba Carrier RAV-SP180UT-UL EN User Manual

Page 20

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Toshiba

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4-way Air Discharge Cassette Type

Installation Manual

7

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 ground 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 circuit breaker or incomplete
installation may cause an electric shock or a fire.

CAUTION

• Consult local building codes, NEC (National Electrical

Code) or CEC (Canadian Electrical Code) for special
requirements.

• 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 circuit breaker is not tripped by shock

waves.
If circuit 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.

• For wiring of power supply of the outdoor units,

follow the Installation Manual of each outdoor unit.

• Never connect 208/230 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.

• Run the refrigerant piping line and control wiring line

in the same line.

• Do not turn on the circuit breaker of the indoor unit

until vacuuming of the refrigerant pipes completes.

Remote control wiring

• For single system, use 2 x AWG20 non polarity wire

is used for the remote control wiring.

Wiring

1. Connect the connecting wire to the terminal as

identified with their respective numbers on the
terminal block of indoor and outdoor unit.
(4

x

AWG12)

2. Insulate the unsheathed redundant cords

(conductors) with electrical insulation tape.
Process them so that they do not touch any electrical
or metal parts.

3. For inter-unit wiring, do not use a wire jointed to

another on the way.

*

1

:Length of the system interconnection wires.

CAUTION

Use the same size wire for the field power supply wire
and system interconnection wires when the outdoor unit
is RAV-SP180AT2.

NOTE

• Use copper supply wires.
• Use UL wires rated 600 V for the system

interconnection wires.

• Use UL wires rated 300 V for the remote control

wires.

Wire Quantity x size

Indoor unit - Outdoor unit *

1

3 x AWG12 (polar)

Ground

1 x AWG12 or thicker

Remote control

2 x AWG20 (non-polar)

RAV-

SP180AT2

SP240AT2

SP300AT2 -

SP420AT2

Wire

length

164’1” (50

m) or less

229’8” (70

m) or less

246’1” (75 m) or

less

19-EN

+00EH99864701_00Ta.book Page 19 Tuesday, November 24, 2009 4:54 PM

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