Good Sam Club Open Roads Forum: Ductless AC instead of roof mounted AC
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 > Ductless AC instead of roof mounted AC

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lastword

North Carolina

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Posted: 08/15/19 03:46am Link  |  Quote  |  Print  |  Notify Moderator

Mini split Update
Installed 4/17/2019 so 4 months later its still running and working great. We have taken 4 camping trips 45min, 50min, 1h20min, 2hr30min drive from the house each 4 day duration. I was worried that road vibrations would cause R410a leaks, but none to date.
I have kept it plugged in and running at home since 4/17 set on 82f unless I go in to work on the interior basically as a dehumidifier and to gain a little confidence on reliability.
I did have a problem with a leak at initial installation and had to charge it after finding and re-tightening the leaking flare connection. The high pressure line at the air handling part was leaking. I could not find a torque value for tightening the connections which could be helpful in avoiding this type of leak. I used a bar of soap with a few drips of water and a paint brush to find the leak.

The unit uses .75A with just the blower running and 5.42A while cooling. The unit has no problem holding the camper at 66F while 96F outside. I am quite impressed with its ability to cool. I will report back this winter when I am able to test the heating part of the unit. There are no electric heat strips installed.

Overall I am quite happy with the performance of the Mini split

jplante4

Cape Cod

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Posted: 08/15/19 05:24am Link  |  Quote  |  Print  |  Notify Moderator

Could you put up a couple of pics of the installation?


Jerry & Jeanne
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wiskeyVI

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Posted: 08/15/19 06:14pm Link  |  Quote  |  Print  |  Notify Moderator

I've seen folks use mini splits I "tiny homes" and converted cargo trailers with good results


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Planning

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Posted: 08/15/19 07:41pm Link  |  Quote  |  Print  |  Notify Moderator

lastword wrote:

Mini split Update

Overall I am quite happy with the performance of the Mini split


Would love to see a photographic overview of the installation.


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ajriding

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Posted: 08/16/19 07:57am Link  |  Quote  |  Print  |  Notify Moderator

Photos photos photos otherwise this does not make as much sense.

Glad it all worked. I did a lot of research on alternatives to the roof unit.

For the amount you spent on this device, why did you not just put on a roof AC and be done with it? A roof unit is built for the road and you are experimenting as if a house unit will hold up over the years of driving…
Ebay finds are maybe $600-800 or a used one around 400. Hint, I have a used Penguin that is perfect in every way except wont run off a 2200 gen.

CavemanCharlie

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Posted: 08/17/19 08:13pm Link  |  Quote  |  Print  |  Notify Moderator

Thank you for the update.

seaeagle2

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Posted: 08/18/19 09:10pm Link  |  Quote  |  Print  |  Notify Moderator

The torque values should be in the installation manual. Those flare fittings are the weak point at this time. There is a whole industry trying to produce an easy to use, reliable tool that will consistently produce a non leaking flare. If it was leaking, and you just tightened it down, it's probably going to leak again at some point.....


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mobeewan

Hampton, Va

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Posted: 08/18/19 11:21pm Link  |  Quote  |  Print  |  Notify Moderator

As far as leaking flared joints, 45 degree conical copper washers have been used for years to seal between leaking 45 degree fittings. Several years ago an a/c auto shop installed 2 in the a/c lines in a vehicle I owned to stop leaks at the 45 degree joints. I and the next owner who is a friend never had another a/c leak.

* This post was edited 08/18/19 11:31pm by mobeewan *

Gulfcoast

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Posted: 08/19/19 06:43pm Link  |  Quote  |  Print  |  Notify Moderator

I've used the copper washers mentioned above, and never a leak again in over 20-years.

S Davis

Western WA

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Posted: 08/19/19 06:54pm Link  |  Quote  |  Print  |  Notify Moderator

Be careful messing around with the fittings while the unit is running, R410a systems can have operating pressures above 450psi.

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