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06-15-2008, 04:30 PM
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#1
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1 Rivet Member
deep river
, Connecticut
Join Date: May 2008
Posts: 18
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1971 overlander ac unit
Is there a way to recharge the unit with freeon
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06-15-2008, 04:32 PM
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#2
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Site Team
2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,616
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Depends on the unit. I think the original Armstrongs can be charged.
__________________
Richard
Wally Byam Airstream Club 7513
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06-15-2008, 04:32 PM
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#3
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by durbin
Is there a way to recharge the unit with freeon
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If it's the original Armstrong unit, the answer is "yes."
Andy
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06-15-2008, 04:59 PM
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#4
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Retired.
Currently Looking...
.
, At Large
Join Date: Jun 2003
Posts: 21,276
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You will need "R-22" for the recharge. It takes the older set (aka R-12) of gauges, and an household a/c guy to charge it. They have screw-together taps that they can use to recharge your system.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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06-15-2008, 05:27 PM
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#5
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Rivet Master
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia
, New Mexico
Join Date: Feb 2005
Posts: 7,743
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I think the Armstrong's take the freon that is worth it's weight in gold
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
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07-09-2008, 03:57 PM
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#6
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1 Rivet Member
deep river
, Connecticut
Join Date: May 2008
Posts: 18
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Quote:
Originally Posted by Inland RV Center, In
If it's the original Armstrong unit, the answer is "yes."
Andy
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How is it done? it only has a high side not a low side valve
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07-09-2008, 04:36 PM
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#7
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by durbin
How is it done? it only has a high side not a low side valve
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Your AC has a fitting for the low side, which is the larger of the two sizes of copper tubing within the unit.
If you indeed only have the fitting on the high side, then you have the only one ever built that way.
If an AC guy doesn't know how to recharge your AC, then you have the wrong AC guy.
The AC on your Airstream, is one of the simplest ever made.
Andy
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07-09-2008, 05:35 PM
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#8
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1 Rivet Member
deep river
, Connecticut
Join Date: May 2008
Posts: 18
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Quote:
Originally Posted by Inland RV Center, In
Your AC has a fitting for the low side, which is the larger of the two sizes of copper tubing within the unit.
Andy
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So you don't need a fitting on the high side. If not how would you recharge it.
My ac guy recharges ac's on boats, and he said both are normally there?????
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07-09-2008, 05:40 PM
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#9
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by durbin
So you don't need a fitting on the high side. If not how would you recharge it.
My ac guy recharges ac's on boats, and he said both are normally there?????
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Any good AC guy knows that you recharge a system, through the low side, and that a high side fitting is nice, but not necessary.
I am not familiar with AC's are on boats, but I am familiar with the AC's that Airstream has used for 42 years.
Andy
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07-09-2008, 06:32 PM
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#10
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3 Rivet Member
1971 25' Caravanner
scappoose
, Oregon
Join Date: Oct 2007
Posts: 206
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High and low side access valves are used together for system diagnostics, for a simple evacuation and recharge, the low side access is enough to do the job. Very simple procedure, make sure whoever does the job also does a leak check on the system. Their are several low cost replacements for R-22.
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08-04-2008, 04:21 PM
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#11
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1 Rivet Member
1967 26' Overlander
Pocatello
, Idaho
Join Date: Jul 2008
Posts: 13
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What is the low cost replacement for the r22? I thought that you could not covert an ac system on any pull trailer like you can a car/vehcile. Is the replacement stuff a DIY type of thing? Has anyone ever used it and if so how does it work?
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08-04-2008, 05:25 PM
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#12
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by Karebere
What is the low cost replacement for the r22? I thought that you could not covert an ac system on any pull trailer like you can a car/vehcile. Is the replacement stuff a DIY type of thing? Has anyone ever used it and if so how does it work?
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I am not aware of "any" replacement for R-22, let alone a low cost type.
Andy
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08-08-2008, 04:31 PM
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#13
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3 Rivet Member
1971 25' Caravanner
scappoose
, Oregon
Join Date: Oct 2007
Posts: 206
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R-22 will still be available at reasonable cost until around 2010, and still used for re-charge purposes for several years after that. When I aid "low cost" in my last post, I was refering to the cost per lb., however, as an end user, you don't want to pay for a 35lb. can of refrigerant. Today, as I type this, R-22 is still easy to get, at least from an EPA licenced tech. Some of the replacements are as follows:
NU-22, R-404A, R-407C, R-417A, R-421A, R-422B, R-422C, R-422D, R-424, RS-45, R-125, RS-44, R-424A, the list goes on, but you get the picture, my point being that some tech person near you will likely have at least one of these refrigerants to use on your system, without having to charge you for a special purchase of a minimum quanity of another type of refrigerant.
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