AC Hacking a 9,000 Btu Mini Split in trailer or RV

[OverTheTopCargoTrailer]

Does anyone have any experience using a 9,000 to 12,000 btu mini split in RV or trailer ?

Was looking to see if someone had done it.....and has some longer term results ?

These units have up to SEER 27 and supply both heating and cooling

Thanks OTTCT

[lrrowe]

I thought I saw some pictures and words somewhere with this being used. I will look around for it. May not have been in TNTTT.
This will determine if I am crazy or not.

[lrrowe]

Here is a you tube story on one. I think this is the one I remember.
http://youtu.be/IHDT5ZEpKkw

Here is a link to my google search with other items listed.
https://www.google.com/?gws_rd=ssl#q=sp ... in+campers

Hope this helps a little.

[lrrowe]

On page 3 of this Forum there are inputs from the installer in the video. Also, there are discussions by others on split units in this forum.

http://www.fiberglassrv.com/forums/f56/ ... 009-3.html

[OverTheTopCargoTrailer]

Was looking to see if someone had done it.....and has some longer term results ?

Because all these guys only talk about how it won't work because the travel movement causes
the copper pipes to get hard - break and or leak.....around the compressor ?
sort of like the foam sprayed into trailer walls - MYTH of - not working 500 times, however its not based on real experience.

The you tube guy video has his kids screaming in the video non stop & no on the road usage results...
he is also using a cheapo $399 unit with no heating & NO INVERTER !!
posted June 2013 - no follow up however ?

[lrrowe]

Did you check the one forum, page three, I listed above your post. That same guy commented on his there.

[OverTheTopCargoTrailer]

Yea - he does not say to much in the comments....BUT he did say he drives with it on ?
since it only works on shore power per him - not sure where he gets the power from while driving ?

[lrrowe]

Picky, picky. That is just a formality.

[OverTheTopCargoTrailer]

Mr Picky Picky

What say yee

7 x 18 trailer , mini split SEER 20 - 9,000 Btu heating & cooling, 675 watts running max

5 hour run time - interior temp 76 , exterior temp 84

What is the calculated power usage ?

[lrrowe]

[OverTheTopCargoTrailer]

Math hint

Standard 13,000 Btu roof top RV AC. Unit uses 1,300 watts at full power
So 1,300 watts x 5 hours = 6,500 watts at full power or 6.5 kw

Question therefore :

7 x 18 trailer , mini split SEER 20 - 9,000 Btu heating & cooling, 675 watts running max
5 hour run time - interior temp 76 , exterior temp 84

What is the calculated power usage ?


:thinking

[OverTheTopCargoTrailer]

I'm still a little confused, I don't get it at all ?

You all think nothing & will drop $900 on a new roof AC with 13,000 btu - SEER 10 maybe, cooling only , sucking 1,300 watts & needing a big LOUD BELCHING - 4k genset to crank it up sucking mega gas
You can't even sleep running the genset unless your deaf ?

Throw in a few extra bucks more to get a mini - SEER 20 for heating & cooling
Uses 50% less power, gen set is 50% smaller, use 50% gas or diesel , super silent running mini
I don't see the downside to the mini split ?


WHAT THE HELL AM I MISSING

[jstrubberg]

Better yet, run a window unit and a cube heater, keep 2/3'rds of your money and half the power requirement.

No one here needs 9k BTU's of cooling. No one.

[MtnDon]

What is the calculated power usage ?

How can you calculate theoretical power use w/o knowing the heat gain/loss through the walls/roof/floor/windows, or the actual run time ? The assumpyion being that the split mini will not run constantly once the interior has cooled,

The split mini will use less power than a conventional A/C because it is more efficient. If you have some real life data for a conventional system, then it should be relatively easy to compare SEER numbers to come up with an approximation that should be good enough for guesstimating.

[OverTheTopCargoTrailer]

Hi MtnDon

Check your PM

Thanks for following