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Old 08-20-2018, 03:58 PM   #1
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HW296 AC under powered

Just got back from our first trip in our new (to us) 2015 HW 296. Evening worked great except the AC. While it “worked” it couldn’t cool the trailer enough to be comfortable. And the real concern is what it was only in the mid 80’s. Ok yes. I don’t need a bunch of post telling me mid 80’s with your window zipped makes for great camping. We did have to do that. That’s not the point. The point is it couldn’t even cool it in the 80’s. There is no chance it will ever work. The air blows ice cold. But cycles on and off. There was a much older Colman tent trailer next to us with their factory ac on as well. It was like a meet locker in theirs. So I know tent trailers an definitely get cool. Anyone else have a similar experience with their Rockwood with AC? I lm not positive but I believe it’s only 8,500 BTU? Any mods to improve it? Or am I just stuck and have to order a new 15,000 BTU AC?
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Old 08-20-2018, 04:15 PM   #2
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If if is blowing cold air it is working, the fact that it is cycling on and off is an indication of one of (or both) two things.


1. The cold air is blowing on the thermostat and cooling it and that area causing it to thinks the desired temp has been reached. If this is the case if possible deflect the cold air away from the thermostat or add a small fan to disperse the air better.


2. The AC was started in a very warm humid RV and the coils are icing up and causing it to cycle to thaw the ice. If this is the case, check the filter and the return air flow to insure the maximum air flow to help prevent the coils from freezing. You can also drop the interior temp slowly so as to remove humidity at a slower rate.
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Old 08-20-2018, 04:18 PM   #3
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If it's 102 outside, our trailer will be 89 with the ac on. Trying to blow cold air into a hot box just isn't the best definition of efficient.
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Old 08-20-2018, 04:35 PM   #4
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Quote:
Originally Posted by Itwrx View Post
Just got back from our first trip in our new (to us) 2015 HW 296. Evening worked great except the AC. While it “worked” it couldn’t cool the trailer enough to be comfortable. And the real concern is what it was only in the mid 80’s. Ok yes. I don’t need a bunch of post telling me mid 80’s with your window zipped makes for great camping. We did have to do that. That’s not the point. The point is it couldn’t even cool it in the 80’s. There is no chance it will ever work. The air blows ice cold. But cycles on and off. There was a much older Colman tent trailer next to us with their factory ac on as well. It was like a meet locker in theirs. So I know tent trailers an definitely get cool. Anyone else have a similar experience with their Rockwood with AC? I lm not positive but I believe it’s only 8,500 BTU? Any mods to improve it? Or am I just stuck and have to order a new 15,000 BTU AC?
Are you using Popup Gizmos and Reflectix?
If not, they will help tremendously.
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Old 08-20-2018, 04:39 PM   #5
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Are you using Popup Gizmos and Reflectix?
If not, they will help tremendously.


This. Works wonders.
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Old 08-20-2018, 11:43 PM   #6
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A lot of times an air conditioner is working perfectly well and the reason for its perceived poor performance is due to latent heat. The ice-cold air at the outlet is sensible heat, or the lack of it that is felt to include evaporation of moisture from the hand in the air flow from the duct that removes more energy making the air flow feel cold on skin. Latent heat is the heat that is not sensed or felt and comes mostly in the form of high humidity. The moisture that is condensing from the air is reducing the ability of the air conditioner to lower sensible temperatures. The warm moist air is loaded with heat energy that flows into the air conditioner evaporator leaving less cooling ability from the air coming out the duct.

In my opinion and experience, an 8,000 BTU air conditioner is too small for but the smallest of well insulated hard sided truck campers. Poor insulation combined with high humidity, an 8,000 BTU us AC is going to make mostly noise and little more.
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Old 08-20-2018, 11:44 PM   #7
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This. Works wonders.
I have reflex up but no gizmos. However the Coleman pup had neither and like I said it felt like the inside of a meat locker. I did notice that it’s (Coleman) ac looked like every other as on any motor home/ travel trailer. Can anyone confirm the HW296 is only 8,500 BTU’s?
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Old 08-21-2018, 12:07 AM   #8
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Originally Posted by Itwrx View Post
I have reflex up but no gizmos. However the Coleman pup had neither and like I said it felt like the inside of a meat locker. I did notice that it’s (Coleman) ac looked like every other as on any motor home/ travel trailer. Can anyone confirm the HW296 is only 8,500 BTU’s?
Standard is a 13.5k a/c.
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Old 08-21-2018, 10:28 AM   #9
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our 2010 HW277 had the stadard 13.5K a/c. it did just fine (and we never got around to getting the gizmos or reflectix for it.).
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Old 08-21-2018, 02:37 PM   #10
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our 2010 HW277 had the stadard 13.5K a/c. it did just fine (and we never got around to getting the gizmos or reflectix for it.).
Gals, you live in Maryland while the OP lives in the desert Southwest.
I'm sure they deal with much higher temperatures.
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