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Old 08-16-2012, 01:46 PM   #1
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1999 28' Excella
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Replacing Air Conditioners

I need to replace my 13500 BTU Air Conditioner/Heat Pump on my 28 foot 99 Excella and, after doing some research, very close to deciding on the Dometic Penguin Lo Profile 15000 BTU AC/HP system. Has anyone had any experience with this system and will there be a problem with increasing the BTU's? Also looking for a good source. I plan to install myself.
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Old 08-16-2012, 01:52 PM   #2
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You won't have any problems with too much current. I just put in a Dometic Briskair 15,000 BTU. What is wrong with the old unit.

Perry
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Old 08-17-2012, 11:18 AM   #3
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tntom - Out of Doors Mart replaced our 13.5 with a 15 a few weeks ago, on a unit just about like yours, same year. We *love* the new, quiet Penguin. She really cools and no additional strain on the system so far as we can see. Go For It.
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Old 08-17-2012, 11:46 AM   #4
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My 2012 28' Intl came with the 15,000 BTU model. I can tell you from personal experience that even in the intense heat this summer it kept the interior more than comfortable. It's also quiet and I had no trouble sleeping with it cycling on and off.
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Old 08-17-2012, 01:55 PM   #5
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I just installed the Penguin II 15,000 BTU. I did, but now wish I did more research on the differences between the 13.5 and 15. Dometic is ambiguous in whether they have a 15K BTU. They list it as 15K in places but not in others. Below is from their own doc. (which by the way you cannot find on their site). The specs for the HC (aka 15K BTU) are the same or lower than the 13.5. Maybe someone can explain what makes it 15 vs 13.5? I do not have a picture of the label from the bottom of the AC, but it to list 13.5. (forgive me for not having the exact verbage from the label)

My point is, is the 15K really worth the price over a 13.5K?

http://www.hill-family.us/serrano/Ma...tionManual.pdf
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Old 08-17-2012, 03:46 PM   #6
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No one told me about Dometic making different size roof airs when our old Colemans were replaced in 05. We have the 13.5 BTUs, I like the low profile, but they WANT for cooling after it get's into the ninties. If I'd known a 15 btu was available at that time, I'd been on it like a cheap suit.
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Old 08-17-2012, 05:04 PM   #7
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Their specs are wrong for the Penquin. The other models that are 15K have a higher amp rating for the bigger units but the Penquin is showing less amps. See page 7

http://www.dometic.com/FileOrganizer...AC_catalog.pdf

Perry
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Old 08-17-2012, 05:40 PM   #8
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I have an 11 25' with 13.5 Dometic. I have wished several times that I had gotten a 15k when I was ordering the unit. On the 90 degree plus days in open sun, the 13.5 can't get it done. I let the dealer talk me out of ordering the 15 because I was told the 13.5 is sized for the 25' and the 15k will cause it to cycle on and off too frequently. On the hot days it never comes close to cycling. Go with the 15.
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Old 08-17-2012, 05:49 PM   #9
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Do it. You'll never regret it. We had ours done some years ago and what a difference!
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Old 08-17-2012, 05:51 PM   #10
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We have both roof airs going as I type, it's in the mid nineties here, after a half hour, we're down to the eighties and getting cooler inside. Yes, the gennie is powering both of them.
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Old 08-17-2012, 09:54 PM   #11
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Quote:
Originally Posted by perryg114 View Post
Their specs are wrong for the Penquin. The other models that are 15K have a higher amp rating for the bigger units but the Penquin is showing less amps. See page 7

http://www.dometic.com/FileOrganizer...AC_catalog.pdf

Perry
The doc I linked is from Dometic and is for the model number of the Penguin II I bought. What I got with the air handler did not match my AC. This is kind of my point about just what is Dometic selling? The doc does not match the catalog.

I should add that we stayed in the trailer with it well above 100 degrees and the AC performed well in cooling the trailer. It is loud. It does shake the trailer when the compressor kicks in.
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Old 08-19-2012, 08:31 PM   #12
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Thanks to everyone for your inputs. After a summer like 2012, guess it should be a no brainer about the 15,000 BTU. Your inputs verify the larger unit. Now to sort out the exact Dometic model: Duo Therm, Brisk Air or Penguin -- all heat pumps but specs not clear on Penguin. Hopefully I can talk to someone that can clarify. If anyone knows a good supplier please let me know. Camping World may order what I need for pickup. Thanks again.
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Old 08-19-2012, 09:09 PM   #13
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A few weeks ago I had the 11,000 btu penguin AC on my Safari 25 replaced with a 15,000 btu penguin heat pump. I had it done at Jackson Center. The heat pump is the same one going in the new AS. The thermostat is the digital thermostat also used on the new AS. You can set the heat pump to auto and it will switch from AC to heat to furnace as necessary to maintain the thermostat set point. The install took more time than a straight AC swap because of the complexity of the conversion from a manual AC to the more complex thermostat. The refrigerator had to be removed in order to get to the wiring for the thermostat. The wiring for hooking the heat pump and furnace to the new thermostat was actually already in place from when the trailer was built. Labor hours were 6.5. There would have been much less labor hours if the install had been a swap to another manual AC unit.

The new heat pump, so far, does a very good job of cooling my Safari 25. The 11,000 btu unit just could not cool down the trailer during this hot summer. The air coming out of the old unit was 20 degrees F lower than the ambient temperature of the trailer. I guess there just was not enough cool air volume to handle all of that heat coming through the walls.

The fan on the heat pump blows more air on low fan than the old unit did on high fan. You can set the thermostat to cycle the fan off with the compressor or let the fan run constant. Frequent cycling of the unit has not been a problem that I have experienced. It is great to be able to cool the trailer down fairly quickly when you pull in to camp after a long day on the road.

It will be a plus in the winter to be able to heat without the use of propane until the outside temp gets fairly low.
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Old 08-23-2012, 07:56 PM   #14
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All your posts have made me continue to dig deeper in the replacement of my 13.5K rooftop Heat Pump with a 15K. Especially the part about the Penguin drawing less current than other 15K units. Tonight that spec table is not coming up but I think I remember the Penguin not being listed as a 15K but called high powered (or something simular). Today I talked with Dometic support and they confirmed it not to be 15K but a 13.5K unit that has been tweaked and upgraded to be more efficient. More than 13.5K output but not 15. It probably is a more efficient unit providing more cooling but I am now leaning toward the Brisk Air heat pump (459186) that is truly rated 15K. It is not considered a low profile but I can live with another one and one half inch. I am going to wait another week or so before ordering just in case something else surfaces. If not I will go with the Brisk Air unit.
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