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Old 04-28-2014, 08:16 PM   #1
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What size AC?

Have a 2007 Keystone Raptor 5th wheel. Didn't come with front AC, and in Florida I want to add one.
Don't want to get it too small, or too large.

Any ideas on a good size for the front, which is the main bedroom.

Thanks.
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Old 04-28-2014, 09:41 PM   #2
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Don't think there are but 2 common sizes--13500 and 15000 BTU. I would get the higher rated one, you can always run it on low, but the smaller one can only go so high.
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Old 04-28-2014, 11:01 PM   #3
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I would add get a heat pump model. Only around a 100 diff.
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Old 04-29-2014, 06:44 AM   #4
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In Florida you will need a second air. I put a 13500 in the front bedroom. You have 50amp service and should be prewired for the second air.
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Old 04-29-2014, 08:11 AM   #5
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Is your trailer pre wired?

Can you duct the new roof A/C in the front? If you can't duct it, I would only put in a 13.5K BTU. If you can duct it (bet not), go for the 15K BTU.
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Old 04-29-2014, 08:22 AM   #6
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Quote:
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I would add get a heat pump model. Only around a 100 diff.
Haven't heard about those.
Are they a split system? Or contained?
Or does it just add heat to the AC unit, like my truck camper AC?
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Old 04-29-2014, 08:26 AM   #7
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I do have a pre-wired front spot for it. As camper has 50A.
The main unit is ducted.
I thought there were more sizes to choose from, so the 15K sounds like it will work.
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Old 04-29-2014, 08:33 AM   #8
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The heat pump/AC unit looks identical to and is the same size as the AC only unit. I really liked my HP/AC units and I suggest the 15K BTU unit. You can't have too much AC when it really gets hot.

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Haven't heard about those.
Are they a split system? Or contained?
Or does it just add heat to the AC unit, like my truck camper AC?
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Old 04-29-2014, 08:43 AM   #9
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Hard to have too much A/C on an RV in the south. Either the 13,500 or 15,000 BTUH unit will work on your RV.

What I have found on ours is I have to use a small fan on the floor to pull air from the bedroom as it is a much smaller area and will cycle off and the A/C in the living area is not cycling off as much. The fan is set to blow across the bath area and into the living area.

As for the heat pump, you may want to have this installed for the mail unit and move the original unit to the bedroom.

Ken
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Old 04-29-2014, 09:06 AM   #10
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A heat pump unit reverses the flow of refrigerant. Instead of cold to the inside, the cold goes outside and the heat goes inside during HP mode.
Heat strips are 1500W heating elements.
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Old 04-29-2014, 03:02 PM   #11
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We have dual 15k heat pumps in ours and use no propane until temps get around 38. That alone will save you a lot of money.
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Old 04-29-2014, 03:07 PM   #12
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We have 2 heat pumps/ac units. The one in the bedroom is 15k and not ducted. When it is cold, we mainly use the heat pump in the bedroom. The ducted unit in the main living room is tied to the furnace and does not work in heat pump mode as well as the unducted bedroom one does. You never know when that bedroom heat pump will come in handy. Our furnace went out so the heat pump also did not work. We were able to stay warm with the bedroom heat pump and a space heater. By the way, the15k ac in the bedroom will freeze you out.
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Old 04-30-2014, 07:19 PM   #13
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Quote:
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Hard to have too much A/C on an RV in the south. Either the 13,500 or 15,000 BTUH unit will work on your RV.

What I have found on ours is I have to use a small fan on the floor to pull air from the bedroom as it is a much smaller area and will cycle off and the A/C in the living area is not cycling off as much. The fan is set to blow across the bath area and into the living area.

As for the heat pump, you may want to have this installed for the mail unit and move the original unit to the bedroom.

Ken
Main unit is ducted throughout. The AC thermostat is next to the stairs leading up to the bedroom. Wonder how that may affect the main AC. Will look into the idea of swapping the main unit. Guess I can get another thermostat too.
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Old 05-01-2014, 10:25 AM   #14
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Most people get the 13,5k unit because they are a lower profile than the 15k.
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