100% RV Solar Mobile AC on the road - freezing at 59 degree

         Well folks can you really handle this 59 degrees freezing AC inside your RV - keep on dreaming, things only get this good with OverTheTopCargoTrailer. To boot it's all 100% FREE SOLAR AC - Heating & cooling. The air coming out of the unit is around 55 deg F - pretty cold. The outside unit will sit inside and quietly vent the heat out through the trailer side - fresh air or cool air will be sucked in from under the trailer or from the other side. The system will be mostly hidden & silent !!! The bottom 2 pictures are some folks who wanna show off their systems - but here we like things hidden. One is installed on the rear truck camper hitch & one on the front of an air Stream. Maybe this is where my crazy ideas come from.

Now cooled with 100% Solar Air Conditioning

A reader question : why did I use a certain type of mini split AC ?


     There are 3 basic types of mini splits, the basic ac cooling version only - runs full power on or off only, example 9,000 Btu on or Zero Btu when off. Type 2 has a heat pump - this allows the flow to be reversed and it now cools and heats both, basically it works between 32 deg up to 100 deg F. Type 3 is the INVERTER - this allows the compressor to run variable speed saving even more power. Example 9,000 Btu unit runs as low as 3,000 to 9,000 Btu range - depending on what it needs to maintain the temperature. LAST there is SEER rating, min required by law is 13 - the max of the most efficient units is SEER 27. I look at this number like MPG sort of. One more thing is low ambient operation - the best units heat down to minus -10F and will cool up to +131F ,  some also run on 120 volts and some on 240 volts, this gives you quite a selection of options - there are actually a few more, but lets keep it simple. ACTUALLY - the big secrete is to be honest, the mini split heats even better then it cools - which is funny as most folks see these as AC only.

Here it is 59 degrees F inside the trailer

The AC is installed above my bed, exactly where i want it

I'm getting great test data, much better then expected

Below is the temp install location, i'm testing that the AC works fine

before cutting large holes into the trailer sides

and or the trailer floor

Here is a fella who like to show off his AC

Mini split installed on a Air Stream trailer, 

worth $1,000 to you and $50 at the scrap yard to copper thief

"No Thanks" to the exterior install for me

This is install inside a bus bay with rear vents

Inside the bus bay, about like my set up

I left Dave a message to see how his unit is holding up

hopefully I will hear from him

http://davestruckcamper.blogspot.com/

       Since the AC will be enclosed and sucking air from the trailer sides and floor I thought it would be best to install additional mechanical ventilation - it just can't hurt as far as I'm concerned. I'm using a 8 amp auto radiator reversible fan rated to move about 900 CFM and it's very quiet. The fan is also installed with 2 fuses, one switch and is on a 10 amp pwm variable speed controller. Since the pwm controller gets quite hot it's installed below a fan to keep it nice and cool. The bottom picture is the exterior 12" cover - I may upgrade this to a 12 x 16" in the future. So far everything works great and is super quiet. I just need some quiet interior fans to help move the air around the trailer a little.

Closer to final location

8 amp auto radiator reversible fan rated to move about 900 CFM

I have now put this fan on a thermostat where it comes on at 92 F

vs running 5 hours straight when the AC is on.

Now the fan runs 75% less , only when needed

Outside fan view

10 amp pwm variable speed controller

being cooled by cabinet fan

Like magic - its all hidden & silent inside

Now cooled with 100% Solar Air Conditioning