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Old 01-31-2016, 03:25 PM   #101
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Split Air Conditioner install

At one time early in my trailer build I was thinking about one of these split setups, but when I started looking at the dimensions of the internal and external components the idea kind of lost its appeal for me.

It seems to me, (my opinion), that these split systems are a lot of trouble for little or no gain when used in a trailer.

The stock type rooftop units are quite efficient because they don't really encroach in the living space, and frankly I think they are more attractive inside and out. Sometimes reinventing the wheel makes sense, sometimes not so much. Just my frank observations.


Brevi tempore!
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Old 07-25-2016, 12:28 PM   #102
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Not quite the look I'm going for but very ingenious and food for thought
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Old 07-25-2016, 12:41 PM   #103
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That looks like it hooks to a rat rod.
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Old 07-25-2016, 12:51 PM   #104
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Value judgement

Quote:
Originally Posted by J. Morgan View Post
At one time early in my trailer build I was thinking about one of these split setups, but when I started looking at the dimensions of the internal and external components the idea kind of lost its appeal for me.

It seems to me, (my opinion), that these split systems are a lot of trouble for little or no gain when used in a trailer.

The stock type rooftop units are quite efficient because they don't really encroach in the living space, and frankly I think they are more attractive inside and out. Sometimes reinventing the wheel makes sense, sometimes not so much. Just my frank observations.


Brevi tempore!
"Little or no gain" is subjective I guess.
My gains:
1. Preserve aerodynamic shape of the trailer.
2. Minimize trailer height.
3. Dramatically reduce power consumption.
4. Dramatically reduce noise.
5. Moderate cost savings.
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Old 07-25-2016, 01:32 PM   #105
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No doubt, what I presented as my opinion is subjective.

Best Regards,

J. Morgan.


Gradiens super tenui glacie.
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Old 07-25-2016, 08:50 PM   #106
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Quote:
Originally Posted by J. Morgan View Post
At one time early in my trailer build I was thinking about one of these split setups, but when I started looking at the dimensions of the internal and external components the idea kind of lost its appeal for me.

It seems to me, (my opinion), that these split systems are a lot of trouble for little or no gain when used in a trailer.

The stock type rooftop units are quite efficient because they don't really encroach in the living space, and frankly I think they are more attractive inside and out. Sometimes reinventing the wheel makes sense, sometimes not so much. Just my frank observations.


Brevi tempore!
Thinking about this, if the trailer is from a period when they had roof top AC then it makes some sense to stick with it unless the other benefits outweighed the cost and work to you. Me; I'd do it in a heart beat but totally get it if others don't see the same benefits I do.

In my opinion, if a trailer is '63 or earlier adding a heavy box on the roof just seems wrong and although beauty may be in the eye of the beholder I think the list of beholders who think a roof top AC is more attractive than a fully concealed split system would be very, very short.
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Old 08-05-2016, 01:50 AM   #107
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The low profile units are hardly obtrusive. And the airflow characteristics plus retention of storage argue in its favor. Not to mention trailer weight balance.

An Aistream is an "engineered" product. A split system is the less efficient choice in at least three categories.

Form follows function.
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Old 08-05-2016, 06:29 AM   #108
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Whilst I'm glad that everyone likes different things, I like Airstreams and I like them Airstream shaped with zero boxes added to the roof.
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Old 02-06-2018, 02:11 PM   #109
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Hey,
I’ve still got some popcorn...
What happened?
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Old 02-06-2018, 07:14 PM   #110
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From my side, progress is slow and complicated by yet another long distance relocation. Rest assured my Sovereign's roof is still air conditioner free and will still get an internal AC or at least a split :-)
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Old 02-06-2018, 07:45 PM   #111
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I suppose one option is to go with basement style AC units. Had one in my first RV which was a Class C Champion Telstar. It worked but was loud and took up lots of storage space both inside and outside.

Nowadays cruising with dash air and 2 roof units that are sleek and super efficient. Good luck with your experiments.
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Old 04-03-2018, 11:31 AM   #112
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This might provide a little inspiration. I'm working on a split unit. I took a 1.25 ton AC unit and split it. The pics shows the beginning of the air handler for evaporator unit. The covers are removed and I haven't yet designed the part where it connects to the ducts. I'm currently working on the squirrel cage/blower motor section. It will bolt onto the back of the air handler above where the AC lines come out.
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Old 04-03-2018, 11:46 AM   #113
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I haven't done much work on the condenser side yet but I do have the outlet for the hot air done. The condenser and compressor will go under the sink and pull fresh air from under the trailer and vent out street side.
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Old 04-18-2018, 10:13 PM   #114
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Dometic CoolCat

Has anyone explored or installed the Dometic Heatpump/AC?

https://www.dometic.com/en-us/us/pro...ol-cat-_-20788
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Old 10-09-2019, 09:09 AM   #115
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Not really for me but this is the first portable mini split I've seen.

https://www.forestair.ca/en/fiche-produit-mini

Might be great for small vintage trailers who are looking for occasional use.
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Old 10-09-2019, 09:25 PM   #116
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Split Air Conditioner install

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Originally Posted by truckasaurus View Post
Not really for me but this is the first portable mini split I've seen.



https://www.forestair.ca/en/fiche-produit-mini



Might be great for small vintage trailers who are looking for occasional use.


Thanks for posting this. I wasn’t aware of this portable unit. It looks like this unit cools only. I believe a regular mini split heat pump would be much better in a trailer. The seer for this unit is very low at 8.8 (see photo). Click image for larger version

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ID:	353924Typical mini split seers are about 18, so twice as efficient. Also there are 120v models up to 12,000 btu/hr, 50% more cooling than this portable mini split unit. I will (hopefully) soon be installing one in our sons Airstream in Texas.

The 5,000 btu window unit for my 66 Tradewind that is portable (and rides over 90% of the time in the bottom of my closet) has a seer of 12.2, significantly more efficient than this mini split portable unit.

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Old 10-09-2019, 11:01 PM   #117
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Split Air Conditioner install

I am planning on installing a 12,000 btu/hr 120 volt mini split heat pump in our sons 78 Caravanner and also in our 95 34’. I am considering a Pioneer unit. Here is some information. What do you think. Any other units that we should consider?

The efficiency is incredible! It looks like only 558 watts for 12,000 btu/hr. My 5,000 btu/hr window unit draws 410 watts for comparison.

Thanks, DanClick image for larger version

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Old 10-10-2019, 08:53 AM   #118
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Hey Dan, If you can spare a couple of hours you too can read the thread I found yesterday! http://www.escapeforum.org/forums/f8...ofit-8249.html I had to sign up to see the pictures.

I think it's a great read and the long story short is that the unit and install seem to work great plus there is also a size identical 12k unit available. Unless someones math is wildly off it seems that I can expect to even run it in eco mode overnight just off lithium battery which I think would be the holy grail of boon docking AC.

The author recommended the Fujitsu 12RL2 for my application and I found a back up version that I also like from LG. I'm a long way from being ready for AC on my project but wanted to have the AC variety specified out so I don't mess up on my floorpan design.

I think getting the exterior unit vinyl wrapped in chrome (think rappers' Lamborghini) may be either my best idea or worst, we'll see, but when you get to your instal please post an update.
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Old 10-10-2019, 12:57 PM   #119
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The seer is only 16 for the Fujitsu. I like the Pioneer at 21.5. The ultra efficient LG units all seem to require 240 volts. I will stick with the Pioneer unless I find something better. I will read the thread this evening. Thanks.

I already am running my 5,000 btu/hr window unit off my 2 lithium batteries. My SOC never got below 35% the last time I used it for an overnight stay on the road. Here is a photo of my batteries and 2,000 watt inverter.

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