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Old 03-18-2009, 11:34 AM   #1
JC
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AC Unit in 1988 Saturn T1550

New to the trailering world and just bought an old 1988 Saturn T1550 in great shape. I need to now what size Duo-Therm ACs were factory installed in this model and where I can obtain a manual.

Also need to determine the correct size generator required to run the AC unit.

Many thanks.
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Old 03-20-2009, 01:19 PM   #2
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Scroll down on this page for a guide to matching a genny to your A/C.

http://www.adventurerv.net/dometic-d...tu-p-1119.html

You're going to have to find out exactly which model you're dealing with before deciding on your generator. I think you're going to have to look around on the unit itself to firmly identify your model # so you know what your unit's BTU output is. I'd imagine it'd be the lower output units with a 15' trailer, but don't want to speculate on what they might have installed specifically in 88'. Hope that helps.

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Lode
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Old 03-20-2009, 01:45 PM   #3
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Air COnditioner

JC,

I don't know where you live but we live and NH and have a unit almost identical to yours and don't have air conditioning.

We have been in Florida, now 40 miles inland from Bradenton, where the temperatures have been in the high 80's for the past week or so and have not felt the need for an air conditioner.

The amazing thing is that the jalousie windows keep it realy cool. We do have fans in our vents but usually only turn them on when cooking to move moisture. In addition we have a very quiet three speed fan that we occasionally turn on.

We absolutely never need the fans in New Hampshire.

Though we wish the windows were thermo pane for condensenation windows we have come to the conclusion that Jalousies are the best window for an RV. One they can be virually 100% opened compared to 50% for most other windows, they can stay open in the rain, though we never worry about it, bad guys can't get in the windows.

Safe and exciting travels to you,

Norm and Ginny Milliard
1982 Sunline 15.5 SB
2004 Honda CRV
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Old 03-20-2009, 02:20 PM   #4
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If you drop the rectangular plastic grid on the ceiling that holds the AC's filter, you can see quite a bit of the interior of the unit. You may have to also remove the plastic frame from the ceiling and maybe remove an access plate or two, but I found a sticker in mine that has model number, etc. It was partly covered by an access plate so it appears very easy to find and expose.

I didn't pull it apart to see if the BTU rating is on it, but I would expect that yours would be fairly small. Most likely 13.5K or 15K. In either case, the current draw to run them is about the same.

Those of us that have the 2KW Honda or Yamaha generators will tell you that 2KW is not enough to start the typical AC unit in a TT. (It's the surge to get the AC running that is the problem, not the wattage necessary to keep it going.) Yamaha now sells a 2.4 KW unit that is supposed to be able to get an RV AC unit running without going into overload and shutting down.

If I were to do it over again, I'd sure look into a slightly larger generator. The choices at the moment are the Yamaha 2.4 KW for around $1,200 or the Honda 3KW for $1,995.

I won't recommend any other generators except Honda and Yamaha due to the noise factor. They are the quietest generators available at 59 db at max. load. At 1/4 load they are rated between 49 and 53 db. All the other gennies I looked at were between 65 and 69 db and they didn't spec whether that was 1/4 load or max load. I suspect they are vague about their ratings because they become too loud at max load. Very few things can be more irritating in camp than an loud generator.
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Old 03-20-2009, 07:02 PM   #5
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Thanks for Helping

Appreciate all the suggestions and they provide a framework for a good solution. Live in Upstate NY and plan on camping in the State Parks. Also have a condo in Myrtle Beach and plan on leisure trips south in the trailer. Many thanks folks.
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