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Open Roads Forum  >  Truck Campers

 > Coleman Polar Cub 7700 BTU sufficient

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Windwalker55

Missouri

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Posted: 02/05/07 03:09pm Link  |  Print  |  Notify Moderator

I am going to buy an air conditioner. Have found a Coleman Polar Cub 7700 BTU on PPL at reasonable price. Wonder though if 7700 BTU would be sufficient for 100 degree and 98% humidity here in Missouri.

Any of you with experience with this size unit in your camper in stiffling hot weather?

Thanks,
Larry

I can get a 13,500 AC for about the same price. Will my Honda 2000 run the 13,500 BTU unit?


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BradW

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Posted: 02/05/07 03:13pm Link  |  Print  |  Notify Moderator

In direct sunlight or in the shade. What indoor temp do you want to maintane? How often will you be opening the door?

Brad


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dmartin@newarts.com

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Posted: 02/05/07 03:34pm Link  |  Print  |  Notify Moderator

Larry:
I am going to buy an air conditioner. Have found a Coleman Polar Cub 7700 BTU on PPL at reasonable price. Wonder though if 7700 BTU would be sufficient for 100 degree and 98% humidity here in Missouri.


It'll probably be sufficient in all but the most demanding circumstances; think asphalt parking lot, July, 105F outside.

I can get a 13,500 AC for about the same price. Will my Honda 2000 run the 13,500 BTU unit?

I know a 1750 watt inverter will start a Coleman 11,000 BTU/hr PS (power Saver) unit. You might consider that as an alternatve. I am pleased by how relatively quiet the unit is too.


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s&scamper

california

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Posted: 02/05/07 04:00pm Link  |  Print  |  Notify Moderator

Be aware at ppl that you will also need to pay big $ for a flat bed freight truck to hual the unit to your loacation. Check with them about that!
Also check the model number of the polar cub, most likely it will be the 'D' series, but that may not be the case. Then check the rvcomfort.com web site and get the amps and running watts for your selected model. (see technical information data sheets)lower watts and amps - better.

The eu2000 should start a 9201 polor cub 'd'
8.5 amp at 1000 running watts
as well as a 8633 mach p.s. series 'd' Power Saver listed at 9.9 amp low fan and 1147 watts

my 2000 starts the 8633 at sea level, as far as how high in elevation before it won't, I'll let you know in about 2 months after I take it up to 6000'

At one point we were going to get the polar cu at camping world because it was
uder $600 installed, That's was about the same as freightting it in etc.

Beddows

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Posted: 02/05/07 04:02pm Link  |  Print  |  Notify Moderator

The 9200 BTU model is enough for mine even in 100 plus and my camper is not winterized. If yours is, then 7700 should do it. A Honda will barely run a 13,500. I tried it. It worked at sea level, but not at 2000 ft.

s&scamper

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Posted: 02/05/07 04:28pm Link  |  Print  |  Notify Moderator

beddows, was the 13,500 a 8633 power saver model?
because other 13,500 units are much higher watts and amp draws and most likely won't work well if at all.

Aquanut

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Posted: 02/05/07 05:00pm Link  |  Print  |  Notify Moderator

s&scamper wrote:

beddows, was the 13,500 a 8633 power saver model?
because other 13,500 units are much higher watts and amp draws and most likely won't work well if at all.

Mine is and the EU2000 ran it. I've only tried it at sea level. It was in eco mode also. I'm looking at changing mine out to a Polar Cub though. I don't know which model to get.

Beddows

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Posted: 02/05/07 05:15pm Link  |  Print  |  Notify Moderator

I don't know the model. It was in another RV. We tried it out of curiosity.

s&scamper

california

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Posted: 02/05/07 08:26pm Link  |  Print  |  Notify Moderator

Thanks for the info, Beddows

Another thing that will help the EU2000 run an a/c at higher elevation or with a larger amp draw, is to eliminate other amp draw appliances while trying to start and/or run the a/c.
This is done by allowing all EU2000 2000 watts from the generator to go directly to the a/c and bypass items like the converter, lights and refrigerator.

On a Lance Camper (and possible others), if to turn off (toggle off) the main breaker fuse for the converter, then all the generator power goes only to the a/c circuit. Of course, if one does this to stay cool, then you are running your lights and fridge directly from your 12 volt battery that is not being charged. After a while, you will need to turn off the a/c and refresh the battery before you run it down too much. check you schematic for the exact breaker switch to toggle.

Windwalker55

Missouri

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Posted: 02/05/07 09:58pm Link  |  Print  |  Notify Moderator

BradW wrote:

In direct sunlight or in the shade. What indoor temp do you want to maintane? How often will you be opening the door?

Brad


Camper should be in the shade most of the time. We like to keep temp at about 75 degrees. Door is opened infrequently.

Thanks Brad.

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