Window A/C Power

[Fjatheart]

I’m considering removing the factory split system that came on my 2003 Ford 7.3 World Trans 6 window and replacing with a window unit above the back door.

I would like to be able to power this unit when on the road and when parked. I understand I could use shore power when parked, but what’s the best way to power this unit when on the road? Is it a battery bank that’s being fed by the alternator with an isolator in-line and an inverter attached the the battery bank?

Thoughts or directions to any other post discussing the same thing?

Thank you!

[john61ct]

Need a genny for when not driving.

[Fjatheart]

Originally Posted by john61ct

Need a genny for when not driving.

Yes, I understand that. I’m asking about when I’m driving the best way to power it.

[o1marc]

Compatible inverter would run it for awhile.

[john61ct]

Yes get a good big enough inverter.

Wire directly to circuit with big fresh battery and alt/starter, fat enough wiring.

Get batt fully charged.

If alt puts out enough amps can run all day.

If not will run down the bat.

Need an ammeter to know.

[Fjatheart]

Has anyone here wired an isolator between the main battery bank to an aux group of batteries that in turn powers the inverter, which the window unit is wired/plugged to?

Recommended isolator brands?

[john61ct]

Blue Sea's ACRs.

ML type us best but pricier.

Isolator implies old style diode based, which incurs too much voltage drop, and is one-way only.

[john61ct]

If Alt is the only off-grid charge source, an ign wired solenoid is only $50.

[cadillackid]

great idea except a window unit isnt going to begin to cool you while driving....



-Christopher

[Fjatheart]

Originally Posted by cadillackid

great idea except a window unit isnt going to begin to cool you while driving....



-Christopher

Even with spray foam insulation floor to ceiling on a 6 window bus with half of those covered in sheet metal and foamed over?