15 | Electrical installation
Installer and user reference guide
53
VAM350~2000J8VEB
Heat reclaim ventilation unit
4P664012-1 – 2021.08
NOTICE
The power supply MUST be protected with the required safety devices, i.e. a main
switch, a slow blow fuse on each phase and an earth leakage protector in accordance
with the applicable legislation.
NOTICE
See the data book for more details.
15.1.5 Specifications for field supplied fuses and wires
Power supply wiring
Field supplied fuses 6A/16A
Wire H05VV-U3G
Size Wire size MUST comply with the applicable legislation.
Transmission wiring
Wiring Sheathed wire (2 wire)
Size 0.75~1.25mm²
Precautions
When connecting more than one wire to the power supply wiring, use a 2 mm²
(Ø1.6mm) gauge wire.
When using 2 power wires of a gauge greater than 2mm² (Ø1.6mm), branch the
line outside the terminal board of the unit, in accordance with electrical equipment
standards. The branch MUST be sheathed to provide a degree of insulation equal
to or greater than the power supply wiring itself.
Limit the total current of crossover wiring between indoor units to less than 12A.
Do NOT connect wires of different gauge to the same grounding terminal. Loose
connections may reduce the protection.
For the controller wiring, refer to the installation manual of the controller delivered
with the controller.