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05-29-2007, 03:02 PM
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#1
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3 Rivet Member
1974 25' Tradewind
Muscle Shoals
, Alabama
Join Date: Apr 2007
Posts: 145
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Air conditioning wiring
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05-29-2007, 03:41 PM
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#2
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Patriotic
1973 23' Safari
North of Boston
, Massachusetts
Join Date: May 2002
Posts: 4,546
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It should have the wiring installed from the factory.
check the circuit breaker panel; on mine, there are 2 20-amp circuits. One is for the air conditioner. the other is for "everything else". (all other 110volt a/c appliances and outlets).
If you can get a service manual (reprints are available), it'll tell you exactly where to find the other end of that wire, as measured back from the first main bow. (first "rib" of the trailer shell's frame...where the front "endcap" meets the roof of the trailer).
Or, you can just drop the ceiling panel and find it that way...it'll be tucked in somewhere just forward of the aft roof vent.
There is also a condesate drain tube in there, as well. It'll be found on the street side, tucked into the ceiling, and it runs down inside the wall just forward of the wheel well. This connects to air conditioners that have a drain pan (not all of them do) and drains the water onto the ground, instead of letting it drip onto the roof and down the side of the trailer.
__________________
Air:291
Wbcci: 3752
'73 Safari 23'
'00 Dodge Ram 1500 4x4 QC
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05-29-2007, 05:23 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 chuman70
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Please post the trailer serial number.
I will then post the exact location of the wiring in the ceiling.
All Airstream trailers built from 1964 on up, have the AC wiring in the roof.
The key is the exact location which depends on the year and length.
You will still need to add two horizontal stiffners between the two "main bows," so that the weight of the AC will not cave the roof in.
No need to pull any panels.
Andy
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05-30-2007, 07:43 AM
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#4
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3 Rivet Member
1974 25' Tradewind
Muscle Shoals
, Alabama
Join Date: Apr 2007
Posts: 145
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What a great resource this forum is! I'm new to 'streaming but can't wait to get this thing ready to go camping. Everyone had told me how much trouble it would be to connect A/C if there was no wiring, but I feel a little better about it now. The Serial number is L25T4J1913. Any help you could offer would be GREATLY appreciated!!
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05-30-2007, 10:33 AM
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#5
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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 chuman70
What a great resource this forum is! I'm new to 'streaming but can't wait to get this thing ready to go camping. Everyone had told me how much trouble it would be to connect A/C if there was no wiring, but I feel a little better about it now. The Serial number is L25T4J1913. Any help you could offer would be GREATLY appreciated!!
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All dimensions are from "station zero," which is the very first main bow. The first main bow is at the forward edge of the awning rail.
The AC wiring is located, on your 74 25 foot twin bed Airstream, between 98 and 101 inches, rearward of station zero.
Cut a small hole in the center of the roof at that dimension. A 3 to 4 inch hole is adequate. "DO NOT" cut the hole with a saw. Instead, use tin snips, so you eliminate the risk of cutting the wire.
You can reach in that hole with a clothes hanger to grab the wire. There should be about 2 feet of wire that will extend thru the hole.
The other (business end) of the wire is located within the circuit breaker panel. Or, if not, then remove the breaker panel as the wire could be immediately behind the breaker panel within the wall.
Please remember, that you "must" beef up the roof by adding horizontal supports between the 2 main bows. Those supports should be fastened to the main bows to eliminate any movement.
Suggest you consider a Carrier low profile 15,000 BTU AC. For the money, it's the best on the market especially when you consider the "air shower" and the "oscillating louvers."
Andy
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05-30-2007, 03:12 PM
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#6
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Rivet Master
Commercial Member
Vintage Kin Owner
Naples
, Florida
Join Date: Dec 2005
Posts: 7,508
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Quote:
Originally Posted by Inland RV Center, In
All dimensions are from "station zero," which is the very first main bow. The first main bow is at the forward edge of the awning rail.
The AC wiring is located, on your 74 25 foot twin bed Airstream, between 98 and 101 inches, rearward of station zero.
Cut a small hole in the center of the roof at that dimension. A 3 to 4 inch hole is adequate. "DO NOT" cut the hole with a saw. Instead, use tin snips, so you eliminate the risk of cutting the wire.
You can reach in that hole with a clothes hanger to grab the wire. There should be about 2 feet of wire that will extend thru the hole.
The other (business end) of the wire is located within the circuit breaker panel. Or, if not, then remove the breaker panel as the wire could be immediately behind the breaker panel within the wall.
Please remember, that you "must" beef up the roof by adding horizontal supports between the 2 main bows. Those supports should be fastened to the main bows to eliminate any movement.
Suggest you consider a Carrier low profile 15,000 BTU AC. For the money, it's the best on the market especially when you consider the "air shower" and the "oscillating louvers."
Andy
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Andy,
Are you installing the Carrier Low Profile units directly to the roof, or do you use the Dometic plastic drip pan?
Thanks!
__________________
lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
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05-30-2007, 03:17 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 lewster
Andy,
Are you installing the Carrier Low Profile units directly to the roof, or do you use the Dometic plastic drip pan?
Thanks!
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You cannot use the Dometic pan with the Carrier.
Secondly, the Carrier does not need a drip pan.
The Carrier is mounted directly to the roof, with a gasket in between.
Andy
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05-30-2007, 03:33 PM
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#8
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3 Rivet Member
1974 25' Tradewind
Muscle Shoals
, Alabama
Join Date: Apr 2007
Posts: 145
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Does this install in place of one of the ceiling vents or will a hole have to be cut? Do you have a diagram of the rib structure I can look at? I'm just a little bit lost about where to look for the wire.
Thanks!!!
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05-30-2007, 03:34 PM
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#9
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3 Rivet Member
1974 25' Tradewind
Muscle Shoals
, Alabama
Join Date: Apr 2007
Posts: 145
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One other thing, you mentioned horizontal suuports. How do you install them and where can I get them?
Thanks again!!
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05-30-2007, 03:45 PM
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#10
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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 chuman70
One other thing, you mentioned horizontal suuports. How do you install them and where can I get them?
Thanks again!!
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You "never" install an AC in a ceiling vent in any Airstream.
That is "not" where the wire is at.
Horizontal stringers are made from aluminum sheeting. You can use a "Z" channel or a "C" channel.
Anyone can make them.
Some people use lumber. That "IS NOT" a good idea. How do you rivet aluminum to wood?
Andy
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05-30-2007, 04:01 PM
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#11
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3 Rivet Member
1974 25' Tradewind
Muscle Shoals
, Alabama
Join Date: Apr 2007
Posts: 145
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Thanks for the info!!
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05-30-2007, 05:57 PM
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#12
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Rivet Master
1967 26' Overlander
Huntsville
, Alabama
Join Date: Dec 2003
Posts: 3,018
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Newbies: Listen up
Quote:
Originally Posted by Inland RV Center, In
All dimensions are from "station zero," which is the very first main bow. The first main bow is at the forward edge of the awning rail.
The AC wiring is located, on your 74 25 foot twin bed Airstream, ...
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I am constantly impressed with the experience Andy has chosen to share on this forum. I doubt there is another Airstream professional who knows this type of detail.
I have certainly never seen one share it so freely.
Kudos to Andy.
Tom
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06-01-2007, 11:53 PM
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#13
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3 Rivet Member
1974 25' Tradewind
Muscle Shoals
, Alabama
Join Date: Apr 2007
Posts: 145
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TomW,
I noticed you live over in Normal. Do you know of anyone you would trust in the Florence/Decatur/Huntsville area to install a roof A/C in my 74 Tradewind?
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06-02-2007, 03:09 AM
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#14
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Rivet Master
1967 26' Overlander
Huntsville
, Alabama
Join Date: Dec 2003
Posts: 3,018
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chuman70,
Sorry, but I have no experience with any of the RV service departments in the area you listed. I did a have really good local man install a new compressor in my Armstrong A/C, but he was not in the RV service business.
Tom
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06-02-2007, 07:33 AM
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#15
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3 Rivet Member
1974 25' Tradewind
Muscle Shoals
, Alabama
Join Date: Apr 2007
Posts: 145
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OK. Thanks anyway.
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