712M Air Conditioning

Build projects, things that guys have come up with to make a Pinz better (or worse?) and aftermarket add-ons.
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bikmakr
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712M Air Conditioning

Post by bikmakr » Thu Apr 09, 2015 6:05 pm

Once again, our military establishment has made it possible to buy very very expensive gear at great prices and due to our 24 system, not everyone can use them. So, low EBAY bids equals Pinz parts. When IED's started taking out our soldiers in Humvees, the army started up-armoring them with thick plates and glass. The result was mobile oven. Our guys were cooking in them. So, the army went to Red-dot Corp for help. They came up with a 32,000 btu unit, fully retrofit-table in the motor-pool. So, the contract went out for 5000 at a time. Long story short, these kits, still in the original box, are available as surplus. Mine had Iraqi dust in the box, but the whole kit was complete, even with instructions and extra parts. The compressor just fits the Pinz motor. I had to fabricate a bracket that cradles the alternator mount, keeping that mount on its rubber pad. The new compressor mount has a traditional tensioning bar, like an old-school alternator mount. I had to add a second pulley groove to the original main pulley. I simply cut off one of the pulleys that came with the kit and welded on and balanced it. The condenser unit is MASSIVE. The size of a 4 row muscle car radiator. I re-located the battery box to the starboard side behind the gas tank (bolts right in), and used part of the kits bracket to mount at an angle where the battery and tool boxes where. I then added a stout "nerf" bar and screen to protect it. The evaporator unit is mounted to the bulkhead behind the passenger. The unit works great and can cool the bed area as well. The insulated Tuff-River top along with insulating the sides help. When the compressor kicks in, teh rmps drop by about 180. When driving, I don't notice the except on inclines. I only need to complete the plenum to the console in the cab to finish the job. Temporary ducting has been sufficient so far.
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bikmakr
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Re: 712M Air Conditioning

Post by bikmakr » Thu Apr 09, 2015 6:09 pm

More pics (no particular order)
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Re-wound for 70 amps
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DSC_5126 (Custom).JPG (116.18 KiB) Viewed 4268 times

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krick3tt
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Re: 712M Air Conditioning

Post by krick3tt » Thu Apr 09, 2015 6:48 pm

A new front cab roof and now AC...what next? Fine work.
Any man who thinks he can be happy and prosperous by letting the government take care of him:
better take a closer look at the American Indian.---Henry Ford

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VinceAtReal4x4s
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Re: 712M Air Conditioning

Post by VinceAtReal4x4s » Fri Apr 10, 2015 12:41 am

Very nice. You must have a hell of a shop too!
"For those who risk, life has a flavor the protected shall never enjoy"

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stiffler4444
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Re: 712M Air Conditioning

Post by stiffler4444 » Fri Apr 10, 2015 6:12 am

Very impressed, you do great work and are obviously not intimidated by daunting tasks. A/C in a soft top Pinzie....who woulda thunk? :!: :idea:
1972 710m

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TechMOGogy
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Re: 712M Air Conditioning

Post by TechMOGogy » Fri Apr 10, 2015 8:12 am

What about running those fans through muddy water - any worries about that?
What is the extruded alum on top of the side boards for?
Last few posts you have made have been inspiring for many!
Dan
72 Pathfinder | 75 710M 2.7i | 96 350GDT Worker

bikmakr
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Re: 712M Air Conditioning

Post by bikmakr » Fri Apr 10, 2015 11:41 am

I enclosed the condenser in a screen to avoid large chunks of stuff getting to the fans. They are sealed and can be fully submersed. Just can't have the AC on while navigating waters. I put a stainless heat shield between the condenser and the exhaust/muffler as well. BTW, the darn thing works so well the fans only run for about 10 seconds at a time, every 3-5 minutes or so.

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pcolette
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Re: 712M Air Conditioning

Post by pcolette » Fri Apr 10, 2015 12:13 pm

Very nice install!

If anyone is interested here are the new kits on eBay: http://www.ebay.com/itm/MILITARY-HMMWV- ... 00&vxp=mtr
Paul C.
_________
'73 Swiss 710M
'89 Puch 230GE
2002 MB G500 (For Sale)

vwnatas
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Re: 712M Air Conditioning

Post by vwnatas » Sat Apr 11, 2015 7:20 am

Could the fan unit be installed on the roof of a 710k? Livin in vegas Ac is gonna be a must have.
You gotta be tough if your gonna be stupid.

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TechMOGogy
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Re: 712M Air Conditioning

Post by TechMOGogy » Sat Apr 11, 2015 9:16 am

vwnatas wrote:Could the fan unit be installed on the roof of a 710k? Livin in vegas Ac is gonna be a must have.
Search can help
viewtopic.php?f=18&t=7325&hilit=Air+conditioning
72 Pathfinder | 75 710M 2.7i | 96 350GDT Worker

bikmakr
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Re: 712M Air Conditioning

Post by bikmakr » Sat Apr 11, 2015 8:09 pm

Check out pictures of the slant backed HUMVEES. Some of these kits have those brackets. If you don't have any height constraints, it could be mounted any way you have flow through it. The kits come with plenty of hose length.

bikmakr
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Re: 712M Air Conditioning

Post by bikmakr » Sat Apr 18, 2015 9:59 pm

The photos I posted were old and not very good. Attached is a recent photo of the compressor mounted. It just fits with the belt line of one additional pulley.
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One of the screened in condenser unit
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vwnatas
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Re: 712M Air Conditioning

Post by vwnatas » Sun Apr 19, 2015 12:37 am

Your engine bay is soo clean.the entire install is soo clean. Nice work sir. How well does it function in the Pinz?
You gotta be tough if your gonna be stupid.

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McCall Pinz
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Re: 712M Air Conditioning

Post by McCall Pinz » Sun Apr 19, 2015 10:33 pm

What's the online equivalent of a wolf whistle? :shock:
eat, sleep, Pinzgauer

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