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Old 07-24-2004, 07:01 PM   #1
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Armstrong Air Conditioner

We have 27 ft 1972 Overlander with a Armstrong air conditioner that quit working last year. The air conditioner was working , then it began to leak drops of water inside the trailer before it quit blowing cold air. Now it just blows air. Any help would be appreiciated.
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Old 07-24-2004, 07:06 PM   #2
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There are a number of things that could cause the unit to stop working.

Couple of questions:

Do you have a wall mounted thermostat?

Does the blower still work?


Depending on the answers there are many options to how to fix it. The Armstrong units are normally tough as tanks and can be fixed by a normal AC guy.
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Old 07-24-2004, 07:18 PM   #3
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Hello Brent G
Yes it does have a wall mounted thermostat and yes the blower still works.
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Old 07-24-2004, 07:21 PM   #4
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Quote:
Originally Posted by Kurt & Eve
Hello Brent G
Yes it does have a wall mounted thermostat and yes the blower still works.
Next question, can you hear the compressor start when you turn the unit on? Or does it just click and just the fan continue to run?
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Old 07-24-2004, 07:28 PM   #5
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I will get back to you tomarrow (July 25) on that one.
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Old 07-24-2004, 09:01 PM   #6
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Is there an easy way to tell if this is the AC unit in my 70 overlander?
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Old 07-24-2004, 09:09 PM   #7
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Quote:
Originally Posted by dbtolman
Is there an easy way to tell if this is the AC unit in my 70 overlander?

Does the shroud inside say Armstrong on it?

Armstrong seems to be the only brand that uses a remote thermostat that were installed in the 70's.
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Old 07-24-2004, 09:47 PM   #8
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Quote:
Originally Posted by thenewkid64
Does the shroud inside say Armstrong on it?

Armstrong seems to be the only brand that uses a remote thermostat that were installed in the 70's.
Hmmm.... Have to drive out to see it at storage... It's got the remote thermostat though...

Particularly interested in this thread since mine drips water (condensation) from the shroud inside right now...
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Old 07-25-2004, 07:26 AM   #9
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Quote:
Originally Posted by dbtolman
Hmmm.... Have to drive out to see it at storage... It's got the remote thermostat though...

Particularly interested in this thread since mine drips water (condensation) from the shroud inside right now...
Here is a link to my trailer while it still had the OEM Armstrong unit on it. If yours looks like this, then you know what you have.
Terry
http://www.airstreamphotos.com/photo...cat/500/page/2
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Old 07-25-2004, 07:34 PM   #10
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Hello Brent G
Couldnt't get to the trailer today. Will try again next weekend. Thanks for your help
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Old 07-25-2004, 07:37 PM   #11
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Cut up

This trailer is going to be cut up within the next two weeks. It has an Armstrong AC on it. It's located in NE North Carolina, about 2 hours from Raleigh, in Hubert, zip code 28539.

http://www.airstreamphotos.com/photo...sort/1/cat/500

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Old 07-25-2004, 10:31 PM   #12
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Quote:
Originally Posted by robandzoe
This trailer is going to be cut up within the next two weeks. It has an Armstrong AC on it. It's located in NE North Carolina, about 2 hours from Raleigh, in Hubert, zip code 28539.

http://www.airstreamphotos.com/photo...sort/1/cat/500

Rob
Does that AC work? Wouldn't want to drive out to get it or even pay shipping for it unless it for sure works?

What else is in that trailer that is salvageable? Can you post some pictures?
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Old 07-31-2004, 02:51 PM   #13
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Hello Brent G
The cannot hear the compressor start and the ac unit does not make the clicking sound, but the fan does run.
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Old 07-31-2004, 03:13 PM   #14
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Quote:
Originally Posted by Kurt & Eve
Hello Brent G
The cannot hear the compressor start and the ac unit does not make the clicking sound, but the fan does run.
If you take the cover off the thermostat you should have 12-14 volts at the screws. If not, then the transformer, under the shroud on the roof, will need to be replaced. I have not replaced one, but I know DavidZ here on the forum has replaced his. The reason for the transformer is to feed the relays that energize the compressor. You could also be in need of a starter capacitor, but if it were a cap then you have a dip in the sound of the fan as the compressor tries to start.
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Old 08-09-2004, 11:40 AM   #15
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Quote:
Originally Posted by robandzoe
This trailer is going to be cut up within the next two weeks. It has an Armstrong AC on it. It's located in NE North Carolina, about 2 hours from Raleigh, in Hubert, zip code 28539.

http://www.airstreamphotos.com/photo...sort/1/cat/500

Rob
Just found this post and was not sure if it was to late, but I am looking for a shroud for an Armstrong A/C unit and a Suburban brand NT-20 or NT-30 furnace. Do you have either item available?
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Old 08-09-2004, 05:30 PM   #16
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Armstrong not running

Kurt & Eve,
What is the latest on your AC situation?
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Old 08-09-2004, 07:15 PM   #17
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Quote:
Originally Posted by Burlyboys
Just found this post and was not sure if it was to late, but I am looking for a shroud for an Armstrong A/C unit and a Suburban brand NT-20 or NT-30 furnace. Do you have either item available?
I'm working on fabricating an aluminum shroud for the Armstrong unit and will have it done in a week or so. If your interested let me know and I'll keep you posted on the design and cost. I thought of replacing mine with fiberglass one but I'm more interested in durability and looks. One tree branch and the fiberglass is a goner. And I like the idea of polishing it up to match my '72 Overlander.
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Old 08-16-2004, 04:06 PM   #18
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Sorry to take so long getting back to you. I would be interested in finding out the details on the aluminum shroud. I understand that there was only one style of Armstrong A/C unit used. Do you know if that is in fact true? Anyway let me know once you have the costs down..



Quote:
Originally Posted by AirConditioner
I'm working on fabricating an aluminum shroud for the Armstrong unit and will have it done in a week or so. If your interested let me know and I'll keep you posted on the design and cost. I thought of replacing mine with fiberglass one but I'm more interested in durability and looks. One tree branch and the fiberglass is a goner. And I like the idea of polishing it up to match my '72 Overlander.
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Old 08-18-2004, 11:12 AM   #19
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Quote:
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I understand that there was only one style of Armstrong A/C unit used. Do you know if that is in fact true?
Sorry to tell you there were at least 4 models of shrouds and I presume at least that number of different Armstrong A/C models.
The aftermarket different shrouds can be found pictured at Inland RV website on the parts list.

There is a data plate under the shroud on the galvanized unit. My model Armstrong is the TRH-25-14. and the shroud that I have (identified by looking at my old one and comparing to Inland's pictures) is Inland #69831, which they say is for years 76,77,78,and 79.

I do not know whether Andy has a way to ID shroud by model number or not.
But if I did not have a shroud to compare, I'd be very sure which one to order before doing so. Return would be costly and damage prone I suspect.
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Old 08-18-2004, 12:52 PM   #20
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Quote:
Originally Posted by roadeo
... Return would be costly and damage prone I suspect.
Probably costly, but I hope not damage prone - I checked with InlandRV the other day about a new shroud for my Armstrong unit. Shipping was $115 and the handling, apparently due to it's size, was an additional $25.

I would hope a $25 container would be good for more than one use.

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