Electrical Connection - Toshiba VN-U00151SY-E Installation Manual

6

Electrical connection

WARNING
• Use the specified wires for wiring connection to 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 earthing 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
• The wire size and wire length of the communication line differs depending on the outdoor unit series to be
connected.
• If incorrect / incomplete wiring is carried out, it will cause an electrical fire or smoke.
• 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.
• Use the cord clamps attached to the product.
• Do not damage or scratch the conductive core and inner insulator of power and control wires when peeling them.
• Use the power supply wire and control wires of specified thickness, type, and protective devices required.
• Do not connect 208 to 240 V 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.
• After connecting wires to the terminal blocks, provide a trap and fix wires with the cord clamp.
23-EN
 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.
• Power supply wire specification: Cable 3-core 2.5 mm², in conformity with Design 60245 IEC 57.
 Power supply
Power supply
Power supply switch / circuit breaker or power supply wiring / fuse rating for Heat recovery ventilation units should
be selected by the accumulated total current values of the Heat recovery ventilation units.
Power supply wiring
Control wiring, Central controller wiring
• 2-core with non-polarity wires are used for the Control wiring between Heat recovery ventilation unit and Central
controller wiring.
• To prevent noise trouble, use 2-core shield wire.
 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.
VN-U SY
Heat recovery
ventilation unit
This letter indicates U series model.
RBC-A U
Wired remote
controller
This letter indicates U series model.
RBC-AXU
Wireless remote
controller kit &
receiver unit This letter indicates U series model.
TCB-TC U
Remote sensor
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-MAP
– 12 –
220 - 240 V, 50 Hz
208 - 230 V, 60 Hz
Below 50 m 3 × 2.5 mm 2
(power supply and earth)
TU2C-Link TCC-Link
(Other than U series)
Other than U series
MMY-MAP
MCY-MHP
Other than U series
MM -AP
Other than U series
Other than U series
Other than U series
Other than U series
)
)
24-EN