Interior A/C hookup?

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mx71
Posts: 69
Joined: Wed Mar 28, 2018 8:20 pm

Interior A/C hookup?

Postby mx71 » Thu Apr 05, 2018 6:48 am

I finally got the interior a/c installed after some previous owner removed all the interior stuff. The blue and red wires for the unit obviously must plug in to the fuse panel, but the plugs aren't compatible. The unit is from a 78 and mine is a 79, could that be why? If not, is there a fuse that's supposed to go in between the panel and the unit that I'm missing? Does anyone have a picture of the fuse panel with the a/c stuff plugged in? I can't find on on google.

Also, does the turning on of the blower initiate the turning on of the compressor? If so, mine doesn't seem to be working. Is the wire on the compressor a ground that's supposed to magnetically pull in the clutch?

TIA

SJTD
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Joined: Tue May 21, 2013 12:02 pm
Location: Lompoc, Sunland or somewhere between

Re: Interior A/C hookup?

Postby SJTD » Thu Apr 05, 2018 12:04 pm

Compressor clutch wire gets 12v to energize the clutch. The case itself is the ground.
Sic friatur crustulum

'84 GW with Nissan SD33T, early Chev NV4500, 300, narrowed Ford reverse 44, narrowed Ford 60, SOA/reversed shackle in fornt, lowered mount/flipped shackle in rear.

rapom
Posts: 34
Joined: Sun Jul 31, 2016 10:00 am

Re: Interior A/C hookup?

Postby rapom » Thu Apr 05, 2018 12:28 pm

Give me an e-mail address or a phone number and I'll send you a pic. It's to much work to post a pic. on this site.

440sixpack
Posts: 291
Joined: Sun Jul 31, 2016 6:31 am

Re: Interior A/C hookup?

Postby 440sixpack » Sat Apr 07, 2018 7:27 am

As I remember it pulling the unit out of a 79, the hot wire connects directly to the fuse panel. there is a tab in the panel itself.

The brown wire goes to the compressor , it is a hot wire.

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fulsizjeep
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Re: Interior A/C hookup?

Postby fulsizjeep » Sat Apr 07, 2018 8:40 am

This site is valuable:
http://oljeep.com

http://oljeep.com/gw/elec/79/79_FSJ_Wir ... mPage2.jpg
http://oljeep.com/gw/elec/79/79_FSJ_Wir ... mPage3.jpg
The AC compressor power is marked 50 Brown 16 (16 ga wire)
I have not found the control wiring for the under dash AC unit. It must be buried somewhere else. The heat/defrost controls are different from the AC controls. They are totally separate systems. That said, you can run heat to defrost the windshiel and run the AC at the same time.
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Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20

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fulsizjeep
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Re: Interior A/C hookup?

Postby fulsizjeep » Sat Apr 07, 2018 8:51 am

OK, there is more on air conditioning in section 3E in the TSM here:
http://oljeep.com/gw/79_tsm/79_Jeep_TSM.pdf
Electrical is kind of vague though.
Sent from my IBM 5150 using TN5250 emulation.

Flint Boardman ~ http://jubileejeeps.org
Embracing the Borg Warner QuadraTrac since 1980 http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s, a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20

mx71
Posts: 69
Joined: Wed Mar 28, 2018 8:20 pm

Re: Interior A/C hookup?

Postby mx71 » Sun Apr 08, 2018 12:34 pm

Yeah I couldn't find anything in there. I guess I'm wondering if the fuse panel plugs on a 78 are different than 79, and should I just make something work. I don't want to cut it if I don't have to.


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