Electrical Connection - Toshiba Carrier MMU-AP0074HPUL Manual De Instalación

7

Electrical connection

WARNING
• Use the specified wires for wiring connect the terminals. Securely fix them to prevent external forces applied
to the terminals from affecting the terminals.
Incomplete connection or fixation may cause a fire or other trouble.
• Connect earth wire. (grounding work)
Incomplete grounding cause an electric shock.
Do not connect earth wires to gas pipes, water pipes, lightning conductor or telephone earth wires.
• 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.
• 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 supply wire and system interconnection wire of specified thickness, type, and protective devices
required.
• Do not connect 208/230V power to the terminal blocks (Uv (U1)), (Uv (U2)), (A), (B) 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.
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.
• 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.
Power supply wire and communication wires specifications
Power supply wire and communication wires are locally procured.
For the power supply specifications, follow to the table below. If capacity is little, it is dangerous because overheat
or burnout may be caused.
For specifications of the power capacity of the outdoor unit and the power supply wires, refer to the Installation
Manual attached to the outdoor unit.
Indoor unit power supply
• Prepare an exclusive power supply for the indoor unit independently of the outdoor unit.
• Arrange the power supplies to the indoor and outdoor units, so that a common earth leakage breaker and
main switch can be used.
• Power supply wire specification: Cable 3-core AWG14
27-EN
1115350150_EN-FR-ES.indb 14 1115350150_EN-FR-ES.indb 14
Power supply
Power supply
Power supply switch / circuit breaker or power supply wiring / fuse rating for indoor units should be selected by the
accumulated total current values of the indoor units.
P o w r e s u p p y l w r i n i g Below 164'0.5" (50 m)
Control wiring, Central controller wiring
• 2-core with polarity wires are used for the Control wiring between indoor unit and outdoor unit and Central
controller wiring.
• To prevent noise trouble, use 2-core shield wire.
• The length of the communication line means the total length of the inter-unit wire length between indoor and
outdoor units added with the central control system wire length.
▼
Communication line
TU2C-Link models (U series) can be combined with TCC-Link models (other than U series).
For details of communication type, refer to the following table.
Communication type and model names
Communication
type (U series and future models)
MMY-MUP
Outdoor unit
This letter indicates U series model.
MM -UP
Indoor unit
This letter indicates U series model.
RBC-ASCU
Wired remote
controller
This letter indicates U series model.
RBC-AXU
Wireless remote
controller kit &
receiver unit
This letter indicates U series model.
U series outdoor unit : SMMS-u (MMY-MUP
Other than U series outdoor unit : SMMS-i, SMMS-e etc. (MMY-MHP
– 14 –
208/230V-1-60 Hz
AWG14
TU2C-Link TCC-Link
(Other than U series)
Other than U series
MMY-MHP
MCY-MHP
MMY-MAP
Other than U series
MM -AP
Other than U series
Other than U series
)
)
EN
FR
ES
28-EN
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