Thread: Help sought - Positive Air System (Dust Excluder) for RVs

Originally Posted by Graeme

From an electrical point of view, my understanding is that a portable inverter cannot be wired into a caravan's 240V supply, only an inverter that is designed to be hard-wired due to earth-neutral connection requirements. However re-wiring the a/c to be connected using a plug into a power point would allow the a/c to be run from a portable inverter.

Running an inverter producing 240V in a moving vehicle of any type becomes a safety risk in an accident.

Cheers. I might be better investigating 12V a/c if such things exist for bigger vehicle/RV spaces! Back to Google.

EDIT
Just found this on the Dometic site - asking for more info, as appears to apply to a specific range of a/c only
Using the air conditioner while driving?

To get the best use from an RV air conditioner while you’re on the move, a DC kit can enable mobile operation from the 12V vehicle battery.

Originally Posted by DiscoMick

Why does the dust suppression vent need to be powered? In the link I posted above there was discussion about scupper vents. All that is needed is enough air to go in to ensure the pressure inside is higher than outside.

It is all a matter of personal choice. I'm not satisfied with scupper vents and want a POSITIVE AIR SYSTEM that I can control in dusty situations. I've used caravans in various guises for much of my life, so been there done that.