How to connect directly to the alternator an inverter?

[bporric]

Hello all,

first of all: sorry for my bad english!

I would like to ask the collaboration of the friends of the forum to connect an inverter intended to fuel an air conditioner (700watt) on the road.

On my Challanger Genesis 47 (a RV on Ford Transit 2400 year 2007 140cv) by using a portable Matsui installed in the hot season in the garage with jets directed towards the passenger compartment and this allows me to air-conditioned an excellent cell.
Of course, I realized a hole on the floor to connect the hose of esplulsione of hot air and install the system on a small pedestal to use the full crossing communication cell/garage.

In camping or picnic area, and then, everything is fine.

The problems are when trying to use the climate in travel.
In fact, despite having adequate purchasing (2000 watts) which I connected to the battery services under the passenger seat, after some minutes the battery will discharge gradually until do go in protecting the inverter that consequently turns off.

Recently I read a post on another forum who described an excellent wiring diagram of three batteries mounted on mechanical Transit Challanger 140cv and I focused the root of the problem: the battery is connected to the system through a 60-ampere fuse, and thus fails to pilot adequately the inverter.

The solution seems simple: connect directly to the alternator the inverter, since that of Transit is from 150 Ampere, putting everything under lock and key, i.e. giving consent to ignition of the inverter motor only lit.

My question, then, is this: where do the positive from the alternator and where the positive cascaded switch only engine running?

Can someone give me a hand?

Thanks everyone,

Biagio (Blaise)
Italy

[ake]

If you go onto http://www.etis.ford.com and download the BEMM manual it contains all the information you need, including where to find a wire which goes live when the engine is running

[bporric]

Thank you!!!

Blaise
Italy