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12 volt rooftop air conditioner for van11/21/2023 It is obviously not as simple as just reducing the voltage to the compressor as is done to slow down fans typically but that is the simple way to explain it. We have had variable speed blowers for as long as I can remember and we now have the ability to do the same thing with compressors. As you get closer to your set temp, the unit will automatically ramp itself back. When a lot of cooling is needed, you want the most cooling out of the system so the compressor is running at full speed. Inverter technology on the Mabru high efficiency systems works on a similar principal as the blowers on the units. (Warning: Nerdy Technical Jargon Below! However, if you geek out on amps, BTUs and decibels please do proceed… Note: since 2022, the temperature units are shown Farenheit How Are These Units So Much More Efficient Than The Competition? Please see the manual (link below) for details. The unit can also be installed into a “standard” 14″ x 14″ roof opening.This requires some basic disassembly and reassembly. Regardless of how you route the wires through your roof, we recommend making trying to make this connection accessible for any future maintenance or repairs. You can use these “splice kits” to connect the wires if you do remove the grey connectors. If you use the solar entry gland that you’ll need to remove the grey connectors on the wiring harness that comes out of the unit itself and the extra length of harness that is included in the box because the entry gland is designed to have an opening (gland) for both the DC positive (red wire) and DC negative (black wire) to pass through rather than one, much larger connection. We recommend using something like this solar entry gland for running the wires through the roof to the location where you’ll connect them to the unit’s 12 volt DC supply from your electrical system. You’ll also need a roof penetration for the wiring that is adjacent to the rooftop unit itself. The unit ships with a roof cutting template ( example photo). Roof hole/cut out size: 14.62″ long x 20.125″ wide, plus 4x drilled holes for the mounting bolts. Optional outer trim panel (with integrated LED lights): 36.9″ wide x 21.5″ long. Interior unit with vents and controls: 18.1″ wide x 11.4″ long x 2.8″ tall Rooftop unit: 33.8 ” long x 38.2″ wide x 6.5″ tall Net weight in box is approximately 76 lbs. Weight: AC unit itself without brackets/packaging, etc. Our tests with a phone sound meter show anywhere between 45 and 55 dBa with the phone at waist height in one hand and the other hand touching the unit. We'll be continually adding to this reference over time and expanding it with as much "real world" testing as we can! Not sure which unit is best for your rig? Check out our comparison spreadsheet to see many of the most important data points across the various units at a glance. We highly recommend using lithium deep cycle batteries with this unit. There are, of course, many others but these threads can get very long and these are “relatively” short. As we update this product page in September of 2023, there have been hundreds of happy customers and you can check out some of the following forum posts where people are discussing the Mabru unit. īoth of the owners of Vanlife Outfitters have the Mabru AC on their personal vans. So, while Mabru is relatively new to the RV/van market, they are well known and respected in the marine world and have been in business for 38 years providing products for high end private yachts and military vessels. This design provides substantial improvements in energy efficiency, quieter operation and longer longevity than traditional compressors. If you take a look at our comparison spreadsheet, you’ll see that the Mabru uses about the same amount of power as the Dometic 2000 RTX while producing nearly twice the cooling capacity! The reason is that Alain Mabru has leveraged his decades of marine cooling experience to engineer an innovative “inverter” system for the compressor. Mabru RV air conditioners are extremely energy efficient – even when compared to other 12 volt rooftop units. In contrast, this Mabru unit runs directly from your 12 volt DC battery bank. In some cases you can run a standard unit from an inverter but inverters often struggle “starting” the compressor. Normally this is provided by shore power or a generator. Most rooftop air conditioners require 120 volt AC power to operate. It installs onto your van’s roof just like traditional RV air conditioners but is vastly more energy efficient. Check out this energy efficient 12-volt air conditioner that is perfect for a camper van.
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