Electrical Work - Toshiba RAV-SM1104ATP-E Installation Manual

7

Electrical work

WARNING
1
Using the specified wires, ensure that the
wires are connected, and fix wires securely
so that the external tension to the wires does
not affect the connecting part of the
terminals.
Incomplete connection or fixation may cause a
fire, etc.
2
Be sure to connect the earth wire.
(grounding work)
Incomplete grounding may lead to electric
shock.
Do not connect ground wires to gas pipes, water
pipes, lightning rods or ground wires for telephone
wires.
3
The appliance shall be installed in
accordance with national wiring regulations.
Capacity shortages of the power circuit or an
incomplete installation may cause an electric
shock or fire.
CAUTION
An installation fuse must be used for the power supply
line of this air conditioner.
Incorrect / incomplete wiring may lead to an electrical
fire or smoke.
Prepare an exclusive power supply for the air
conditioner.
This product can be connected to the mains power.
Fixed wire connections:
A switch that disconnects all poles and has a contact
separation of at least 3 mm must be incorporated in
the fixed wiring.
Be sure to use the cord clamps attached to the
product.
Do not damage or scratch the conductive core or inner
insulator of the power and system interconnection
wires when peeling them.
Use the power and system interconnection wires with
specified thicknesses, specified types and protective
devices required.
71-EN
1115250101_EN.indd 36 1115250101_EN.indd 36
Remove the service panel, and you can see electric
parts on the front side.
A conduit pipe can be installed through the hole for
wiring. If the hole size does not fit the wiring pipe to
be used, drill the hole again to an appropriate size.
Be sure to clamp the power wires and system
interconnection wires with a banding band along the
connecting pipe so that the wires do not touch the
compressor or discharge pipe.
(The compressor and the discharge pipe become
hot.)
Screws
Electrical control
box cover
Service
panel
Cord clamp
Pipe hole
Wiring between indoor unit
and outdoor unit
The dashed lines show on-site wiring.
(system
(Main circuit) interconnection wires)
L 1 1
Input power
N 2 2
Remote
3 3
controller
Outdoor unit Indoor unit
Earth
Circuit
breaker
Connect the system interconnection wires to the
identical terminal numbers on the terminal block of
each unit.
Incorrect connection may cause a failure.
For the air conditioner, connect a power wire with the
following specifications.
Model RAV- SM110, SM140
220-240 V~, 50 Hz
Power supply
220 V~, 60 Hz
Maximum running current 22.8 A
Installation fuse rating 25 A (all types can be used)
H07 RN-F or 60245 IEC 66
Power supply wire
(2.5 mm 2 or more)
System interconnection H07 RN-F or 60245 IEC 66
wires (1.5 mm 2 or more)
How to wire
1. Remove the mounting screws (2 pieces), open the
electrical control box cover.
2. Connect the power supply wires and system
interconnection wires to the terminal block of the
electrical control box.
3. Tighten the screws of the terminal block, connect the
wires matching the terminal numbers (Do not apply
tension to the connecting section of the terminal
block.)
4. Close the electrical control box cover, attach the
mounting screws.
When connecting the system interconnection wire to
the outdoor unit terminal, prevent water from coming
into the outdoor unit.
Insulate the unsheathed cords (conductors) with
electrical insulation tape. Process them so that they
do not touch any electrical or metal parts.
For system interconnection wires, do not use a wire
joined to another on the way.
Use wires long enough to cover the entire length.
To Indoor unit Power supply
terminal block terminal block
1 2 3
L N
Earth Earth
screw screw
Pipe valve
fixing plate
System Power supply wire
interconnection
wire
– 36 –
Stripping length power cord and system
interconnection wire
10 10 L N
1 2 3
10 10
50
50
30
40
(mm)
Earth wire Earth wire
System Power supply
interconnection wire
wire
Wiring diagram
* For details on the remote controller wiring /
installation, refer to the Installation Manual enclosed
with the remote controller.
Single system
Remote controller
Remote controller wiring
A B
Indoor side
1 2 3
System interconnection
wires
1 2 3
Outdoor side
L N
Power supply
Simultaneous twin system
Remote
controller
Remote controller
inter-unit
wiring
Remote controller
wiring
A B A B
Indoor
Indoor side
side
1 2 3 1 2 3
System
interconnection wires
1 2 3
Indoor
Outdoor side
power
L N inter-unit
wiring
Power supply
* Use 2-core shield wire (MVVS 0.5 to 2.0 mm² or
more) for the remote controller wiring in the
simultaneous twin system to prevent noise
problems. Be sure to connect both ends of the shield
wire to earth leads.
* Connect earth wires for each indoor unit in the
simultaneous twin system.
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EN
ID
72-EN