Electric Wiring - Toshiba VN-M150HE Installation Manual

13-EN
Air to Air Heat Exchanger
8

Electric Wiring

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 or other troubles.
2. Connect earth wire. (grounding work)
Incomplete earthing cause an electric shock.
Do not connect earth wires to gas pipes, water pipes, lightning rods or earth 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.
• 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 communication wires when peeling
them.
• Use the power and communication wire of specified thickness, type, and protective devices required.
• Do not connect 220-240V power to the communication terminal blocks (
(Otherwise, the system will fail.)
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.
Power and wiring Specifications
Power supply wire and communication wire should be locally procured.
See the table below for the power supply specifications. If the capacity is too small, the unit will suffer from
overheating or burnout.
Item
Power supply
Model name VN-
220V-240V~, 50Hz
Air to Air Heat M150HE to
Exchanger M1000HE
220V~, 60Hz
*1: Prepare the exclusive power supply for the Air to Air Heat Exchanger
AMP Air Conditioning
Installation Manual
, , , ) for control wiring.
U U A B
3 4
Power supply for Air to Air Heat Exchanger (*1)
Circuit breaker (switch)
Power supply wire
Current rating (Fuse rating)
3-core,
2
15A 1.5 mm or 2.5 mm
(H07 RN-F or 60245 IEC 66)
– 7 –
Air to Air Heat Exchanger
Communication wire
Item
Model name VN-
Air to Air Heat M150HE to
Exchanger M1000HE
*2:
• The length of the communication wire is the total length of the outdoor/indoor transition wire and wire of the central control
assuming that an interlocking system with the indoor unit or central control system is used.
• To prevent noise, use a 2 core shielded wire.
Remote controller wiring
Remote controller wiring, remote controller inter-unit wiring
Total wire length of remote controller wiring and remote controller inter-unit wiring = L + L1 + L2 + ··· Ln Up to 500mm
Total wire length of remote controller inter-unit wiring = L1 + L2 + ··· Ln
On the outside of the unit, do not allow the wire for the remote controller (communication wire) and the wire for AC220-240V to come into contact
or put them together in one electrical conduit; otherwise, the control system may have trouble due to noise.
Indoor unit
L
Remote controller
wiring
Remote
controller
* The total length of the remote controller inter-unit wiring is the same for both between the indoor units and
between the Air to Air Heat Exchanger.
2
Communication wire
Central control wire (*2) Remote controller wire
2-core, non-polarity
Shielded wire 2-core, non-polarity
2
(Up to 1000m) 1.25 mm 0.5 mm
2
(Up to 2000m) 2.0 mm
2-core, non-polarity: 0.5 mm
Air to Air
Indoor unit
Heat
Exchanger
L1 L2 Ln
(Up to 8 units)
Remote controller inter-unit wiring
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14-EN
Installation Manual
2 2
to 2.0 mm
2 2
to 2.0 mm
Up to 200mm
Air to Air
Heat
Exchanger