Auxiliary AC unit install

J

jared and stefanie kohl

New member
Apr 20, 2014
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Looking for some assistance from anyone who has installed an auxiliary AC unit that jimk sells. I just haven't had the time to dive on the spike of
trying to get everything I need (hoses, know-how, etc) in order to install it. I have the splitters and the "instructions" but I'd love it if there
was someone around who has actually installed one to assist me.

My wife and I are headed west starting June 20 and are not committed to any specific route other than we're taking the North entrance to Yellowstone
so we need to end up there when all is said and done.
--
Jared & Stefanie Kohl
Rappahannock County, VA
1973 Painted Desert "Onslow"
 
Dear sir, I have the roof air, gas furnace and that's it. The dash air doesn't work. Mine is a 74. I hear they are different from newer ones. I've
seen coaches with the "add on AC units" like a car dealer would install on a car w/o ac. I've also heard of using a "split heat pump" like they use
in houses. The noise maker is outside and inside is the fans. Have you heard of this? I figure the outside unit could be where the spare tire is
located, then the spare could be bumped out further back. Keep me posted! I don't know. Happy trails!

--
Jim Bell, Dublin VA -
1974 GMC Motorhome -"Lurch" bought in 2009 - TZE064V100846
1972 BMW 2002tii - good condition -
1973 BMW 2002tii - poor/fair condition -
2003 Lincoln TC - Daily driver.
 
Why don't you do like people that need help and call us.
We have instructions to assist anyone

> Dear sir, I have the roof air, gas furnace and that's it. The dash air
> doesn't work. Mine is a 74. I hear they are different from newer ones.
> I've
> seen coaches with the "add on AC units" like a car dealer would install on
> a car w/o ac. I've also heard of using a "split heat pump" like they use
> in houses. The noise maker is outside and inside is the fans. Have you
> heard of this? I figure the outside unit could be where the spare tire is
> located, then the spare could be bumped out further back. Keep me
> posted! I don't know. Happy trails!
>
> --
> Jim Bell, Dublin VA -
> 1974 GMC Motorhome -"Lurch" bought in 2009 - TZE064V100846
> 1972 BMW 2002tii - good condition -
> 1973 BMW 2002tii - poor/fair condition -
> 2003 Lincoln TC - Daily driver.
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Jared,
I learned how A/C worked back in 1969 when my dad and I installed a Sears add-on underdash A/C unit in the Falcon station wagon. I still have the
unit, but not the car. I also have the necessary tools and knowledge to evac and recharge the system without a $3000.00 machine.

I'd like to see that kit Jim sells and if you want drive it (in the GMC) down here to Smithfield, I'll help you put it in. Did it come with
refrigerant? I haven't looked at it yet on Jim's site, but I have given some thought to adding the old Sears unit to the GMC! As you can guess, my
dash air is lame, too, but I am not ready to remove the dash to modify it yet. That will have to wait until I don't know when, at least until after
the save the sun rally :?
--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.
 
I have your instructions. The issue for me is getting the hoses made etc. Also, I'm a very hands on learner. I have a hearing problem (not quite Ken Burton level yet but in that direction) so calling for help doesn't work for me very well. I wish y'all were on the east coast instead of out in California.

Jared

Sent from Yahoo Mail on Androidhttps://overview.mail.yahoo.com/mobile/?.src=Android

On Tue, Jun 13, 2017 at 0:42, Jim Kanomata

Why don't you do like people that need help and call us.
We have instructions to assist anyone

> Dear sir, I have the roof air, gas furnace and that's it. The dash air
> doesn't work. Mine is a 74. I hear they are different from newer ones.
> I've
> seen coaches with the "add on AC units" like a car dealer would install on
> a car w/o ac. I've also heard of using a "split heat pump" like they use
> in houses. The noise maker is outside and inside is the fans. Have you
> heard of this? I figure the outside unit could be where the spare tire is
> located, then the spare could be bumped out further back. Keep me
> posted! I don't know. Happy trails!
>
> --
> Jim Bell, Dublin VA -
> 1974 GMC Motorhome -"Lurch" bought in 2009 - TZE064V100846
> 1972 BMW 2002tii - good condition -
> 1973 BMW 2002tii - poor/fair condition -
> 2003 Lincoln TC - Daily driver.
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
JimB installed one by tapping into the existing dash unit of my '73 GMC.
Has been working great for 14 year and so far has only used up one can
or R-12.

jim Galbavy
'73 x-CL ANNIE
Lake Mary, Fl
 
I haven't done it, but looking at an older Suburban I had with rear A/C, I believe most of the parts (Y pipe fropm the compressor, evaporator and fan,
hoses, etc.) could be had at the Men's Mall.

--johnny
--
76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
"I forgive them all, save those who hurt the dogs. They must answer to me in hell" - ol Andy, paraphrased
 
Look at the Aeroquip EZ clip system.

I made all my own hoses on my 73, with no factory AC when I put in my 2 22,000 BTU units.
 
Mike -

What kind of units did you install and where ??

Thanks,

Steve W
1973 23'
Southern California
 
Is Duracool the best option to charge the system? Is there any issue with using RedTek 12a? And will the system need about 2.5/3 cans?
--
Jared & Stefanie Kohl
Rappahannock County, VA
1973 Painted Desert "Onslow"
 
> Is Duracool the best option to charge the system? Is there any issue with using RedTek 12a? And will the system need about 2.5/3 cans?

Jared,

I cannot tell you the charge volume except to guess that it about what you are looking at as this material seems to be very close to HC-12a. It is a
propane - butane mix. The people here have had great success with HC-12a.

The recommended charge is to 25psi (so the evaporator does not freeze) at 1500 engine RPM.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Still Loving OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
We're getting ready for a long weekend in the GMC. The A/C wasn't cold and of
course I imagined I'd lost some freon (actually a mixture of Duracool and
Frostycool). So I put other can in. It still wasn't cool so I did it again.
Still no joy. This morning I finally broke down and put a gauge on the low
pressure side and ran it up to 1500 rpm with a calibrated stick between the seat
and accelerator pedal. It read over 85psi.!! It took forever to bleed off
enough gas (mixed with oil) to bring it down to 25psi. But now?, joy, joy, joy!
IT'S COLD!

-----Original Message-----
From: On Behalf Of Matt Colie

> Is Duracool the best option to charge the system? Is there any issue with
using RedTek 12a? And will the system need about 2.5/3 cans?

Jared,

I cannot tell you the charge volume except to guess that it about what you are
looking at as this material seems to be very close to HC-12a. It is a propane -
butane mix. The people here have had great success with HC-12a.

The recommended charge is to 25psi (so the evaporator does not freeze) at 1500
engine RPM.
 
Its interesting to see how the recommended charge has “creeped” upward since I gave my seminar on Duracool years back.

I have always recommended charging to 20 psi at 1500 RPM. If the ambient temperature is high (say 85 or higher) then the same amount of Duracool will give a pressure of perhaps up to 25 psi.

I have found that 3 six ounce cans of Duracool (HC12a) will be just about right no matter what the ambient temperature is. Sometimes even a little less than 3 cans.

Actually is it a mixture of propane and isobutane.

Emery Stora
77 Kingsley
Frederick, CO

>

>> Is Duracool the best option to charge the system? Is there any issue with using RedTek 12a? And will the system need about 2.5/3 cans?
>
> Jared,
>
> I cannot tell you the charge volume except to guess that it about what you are looking at as this material seems to be very close to HC-12a. It is a
> propane - butane mix. The people here have had great success with HC-12a.
>
> The recommended charge is to 25psi (so the evaporator does not freeze) at 1500 engine RPM.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Still Loving OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Steve
I got them on Ebay for around $100 per side.
They are installed under the front seats facing rearward on my 73(large seat mount box).

Low pressure is key.
 
Look up Jim Decheine's contact info on the Black List. He did just what you are talking about recently on his '73 and can talk (email?) you through
the procedure.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
 
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