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Auxiliary AC unit install [message #318895] Mon, 12 June 2017 14:22 Go to next message
werewilfs is currently offline  werewilfs   United States
Messages: 329
Registered: July 2012
Location: Rappahannock County, VA
Karma: 0
Senior Member
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"
Re: Auxiliary AC unit install [message #318904 is a reply to message #318895] Mon, 12 June 2017 19:56 Go to previous messageGo to next message
Jim B n Lurch is currently offline  Jim B n Lurch   United States
Messages: 13
Registered: May 2016
Location: Dublin VA 24084
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Junior Member
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.
Re: [GMCnet] Auxiliary AC unit install [message #318916 is a reply to message #318904] Mon, 12 June 2017 23:41 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
Why don't you do like people that need help and call us.
We have instructions to assist anyone

On Mon, Jun 12, 2017 at 5:56 PM, Jim Bell wrote:

> 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@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: Auxiliary AC unit install [message #318917 is a reply to message #318895] Mon, 12 June 2017 23:59 Go to previous messageGo to next message
Bullitthead is currently offline  Bullitthead   United States
Messages: 1411
Registered: November 2013
Karma: 5
Senior Member
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 Confused


Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.
Re: [GMCnet] Auxiliary AC unit install [message #318921 is a reply to message #318916] Tue, 13 June 2017 07:04 Go to previous messageGo to next message
werewilfs is currently offline  werewilfs   United States
Messages: 329
Registered: July 2012
Location: Rappahannock County, VA
Karma: 0
Senior Member
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 Android

On Tue, Jun 13, 2017 at 0:42, Jim Kanomata
wrote:
Why don't you do like people that need help and call us.
We have instructions to assist anyone

On Mon, Jun 12, 2017 at 5:56 PM, Jim Bell wrote:

> 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@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502

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Jared & Stefanie Kohl Rappahannock County, VA 1973 Painted Desert "Onslow"
Re: Auxiliary AC unit install [message #318923 is a reply to message #318895] Tue, 13 June 2017 07:39 Go to previous messageGo to next message
Jim Galbavy is currently offline  Jim Galbavy   
Messages: 1443
Registered: August 2007
Karma: 7
Senior Member
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
Re: Auxiliary AC unit install [message #318925 is a reply to message #318895] Tue, 13 June 2017 07:43 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
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


Foolish Carriage, 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
Re: Auxiliary AC unit install [message #318930 is a reply to message #318895] Tue, 13 June 2017 08:35 Go to previous messageGo to next message
Mike S   United States
Messages: 82
Registered: February 2017
Location: Vero Beach, FL
Karma: 3
Member
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.
Re: Auxiliary AC unit install [message #318932 is a reply to message #318930] Tue, 13 June 2017 09:12 Go to previous messageGo to next message
SteveW is currently offline  SteveW   United States
Messages: 538
Registered: June 2005
Location: Southern California - Ora...
Karma: 1
Senior Member
Mike -

What kind of units did you install and where ??

Thanks,

Steve W
1973 23'
Southern California



Steve W 1973 : 23' Southern California
Re: Auxiliary AC unit install [message #318936 is a reply to message #318895] Tue, 13 June 2017 11:52 Go to previous messageGo to next message
werewilfs is currently offline  werewilfs   United States
Messages: 329
Registered: July 2012
Location: Rappahannock County, VA
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Senior Member
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"
Re: Auxiliary AC unit install [message #318940 is a reply to message #318936] Tue, 13 June 2017 14:18 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
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Registered: March 2007
Location: S.E. Michigan
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Senior Member
werewilfs wrote on Tue, 13 June 2017 12:52
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 - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
Re: [GMCnet] Auxiliary AC unit install [message #318943 is a reply to message #318940] Tue, 13 June 2017 15:47 Go to previous messageGo to next message
bdub is currently offline  bdub   United States
Messages: 1578
Registered: February 2004
Location: Central Texas
Karma: 5
Senior Member

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

werewilfs wrote on Tue, 13 June 2017 12:52
> 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.



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bdub
'76 Palm Beach/Central Texas
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Re: [GMCnet] Auxiliary AC unit install [message #318961 is a reply to message #318940] Tue, 13 June 2017 20:41 Go to previous messageGo to next message
Emery Stora is currently offline  Emery Stora   United States
Messages: 959
Registered: January 2011
Karma: 4
Senior Member
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

> On Jun 13, 2017, at 1:18 PM, Matt Colie wrote:
>
> werewilfs wrote on Tue, 13 June 2017 12:52
>> 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
>
> _______________________________________________
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Re: Auxiliary AC unit install [message #318976 is a reply to message #318895] Wed, 14 June 2017 06:48 Go to previous messageGo to next message
Mike S   United States
Messages: 82
Registered: February 2017
Location: Vero Beach, FL
Karma: 3
Member
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.
Re: Auxiliary AC unit install [message #318980 is a reply to message #318976] Wed, 14 June 2017 09:54 Go to previous message
Carl S. is currently offline  Carl S.   United States
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
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Senior Member

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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