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6
Electrical Wiring
6.1
General Precautions on Wiring
1. Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then
carry out the wiring closely following the wiring diagram.
2. A power supply should be provided exclusively for each unit, complete with circuit
breaker and over current protection.
3. To prevent possible hazards from insulation failure, the unit must be grounded.
4. Each wiring connection must be done in accordance with the wiring system dia-
gram. Incorrect wiring may cause the unit to misoperate or become damaged.
5. Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts
of the fan.
6. Unauthorized changes in the internal wiring can be very dangerous. The manufac-
turer will accept no responsibility for any damage or misoperation that occurs as a
result of such unauthorized changes.
7. Regulations on wire diameters differ from locality to locality. For field wiring rules,
please refer to your LOCAL ELECTRICAL CODES before commencing wiring. You
must ensure that installation complies with all relevant rules and regulations.
8. To prevent malfunction of the Air-to-Water caused by electrical noise, care must be
taken when wiring as follows:
● The remote control wiring and the inter-unit control wiring should be wired apart
● Use shielded wires for inter-unit control wiring between units and ground the
● Use shielded wires for remote control wiring between units and ground the
9. If the power supply cable of this appliance is damaged it must be replaced by a
service agent appointed by the manufacturer (special-purpose tools are required).
!
Important
For all electrical connection data for the outdoor unit, so as power consumption and selection of
fuse, please refer to the corresponding Outdoor Unit Installation Manual.
DHW PAW-VP - Installation manual - 2020-05
from the inter-unit power wiring.
shield at both ends.
shield on indoor unit side.
Electrical Wiring
39
6
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