Power source for classic auto air?

Deanfitz27 · Oct 31, 2019

Hi looking for some input on what power wire some of you have used for the power source for classic auto air on a 69 bbody. Is says 12v source, i'm guessing you would not use the original heater wire from the under dash harness?

91r/t · Oct 31, 2019

Just make sure the amperage draw isn't way higher than the standard blower motor for the original setup. Not sure about the draw or function/use, but it may need to be up'd in size depending.

Deanfitz27 · Oct 31, 2019

91r/t said:
Just make sure the amperage draw isn't way higher than the standard blower motor for the original setup. Not sure about the draw or function/use, but it may need to be up'd in size depending.

Thanks,
i know several here have done the upgrade, hopefully someone knows which source they used

Richard Cranium · Oct 31, 2019

Deanfitz27 said:
Thanks,
i know several here have done the upgrade, hopefully someone knows which source they used

Go directly to the fusebox.

Deanfitz27 · Oct 31, 2019

Richard Cranium said:
Go directly to the fusebox.

ok, the system ask for a 20 amp fuse, i guess the aux slot should be fine

chtampa · Oct 31, 2019

I installed a relay panel under the dash. You can run a single power lead into the dash area.

Richard Cranium · Oct 31, 2019

Deanfitz27 said:
ok, the system ask for a 20 amp fuse, i guess the aux slot should be fine

451Mopar · Oct 31, 2019

The vintage air kit I used had a power line with circuit breaker in it that attaches to the battery?

Kern Dog · Nov 2, 2019

Attach the wire to the spade on the backside of the fuse box that originally supplied power to the heater.

Richard Cranium · Nov 3, 2019

Kern Dog said:
spade

Deanfitz27 · Nov 3, 2019

Kern Dog said:
Attach the wire to the spade on the backside of the fuse box that originally supplied power to the heater.

I found The black wire with a white stripe in the harness that he the heater wire, I guess I could put a spade connector on my a/c wire and plug it in the the factory heater wire source, it still ends up going to the fuse panel. Same result I guess?

HawkRod · Nov 3, 2019

I used my heater and A/C fuse (on my 70, second from left). The classic air system is supposed to only draw 20 Amps, so it should be fine. In my case I found that it got very hot. For me, it seems to heat up on the bottom of the fuse connection. I think I may have a poor connection there that may be a specific problem on my car - not sure as I have not fully diagnosed this yet.

(My plan is to move this to an alternate power source on a separate fuse panel I have in my car)

Power source for classic auto air?

Deanfitz27

Well-Known Member

91r/t

FBBO Gold Member

Deanfitz27

Well-Known Member

Richard Cranium

FBBO Gold Member

Deanfitz27

Well-Known Member

chtampa

Well-Known Member

Richard Cranium

FBBO Gold Member

451Mopar

Well-Known Member

Kern Dog

Life is full of turns. Build your car to handle.

Richard Cranium

FBBO Gold Member

Deanfitz27

Well-Known Member

HawkRod

Formerly hsorman

Similar threads