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Old 03-20-2019, 06:20 PM   #1
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Default Does anyone have some experience with new 12 Volt DC AC

As a couple of different manufactures are now installing 12 Volt DC AC I was wonder how well do they work? Can you run them longer on the new Lithium Powered Class B units?

Thanks

Kevin
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Old 03-20-2019, 10:20 PM   #2
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What are you talking about. I think you are referring to an inverter. but you don't say that, if that is the case I recommend a true sine unit over a modified sine. It makes a difference when running a motor like a even a drill.
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Old 03-20-2019, 10:43 PM   #3
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What are you talking about. I think you are referring to an inverter. but you don't say that, if that is the case I recommend a true sine unit over a modified sine. It makes a difference when running a motor like a even a drill.
He is asking about 12v DC Air Conditioning systems ...
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Old 03-20-2019, 10:53 PM   #4
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The user is asking about native 12 volt DC air conditioners, not a 120 volt AC air conditioner running on an inverter.

One unit from Dometic, the Cuddy II, pulls 29 Amps during full cooling.But that unit is only 3500BTU.

Lets hear from others who may have experience with DC air conditioners which by the way are much more popular in the boat industry.
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Old 03-21-2019, 12:40 AM   #5
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One unit from Dometic, the Cuddy II, pulls 29 Amps during full cooling.But that unit is only 3500BTU.

Lets hear from others who may have experience with DC air conditioners which by the way are much more popular in the boat industry.
That unit is water cooled so only for boats.

What is the question? We lived with an Autoclima UGO for 1.5 years. Decent to lower humidity but a little underpowered. We have tested the split unit from Autoclima, which is far superior. We have also tested and installed unit is from Kingtec and Cruise N Comfort.
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Old 03-21-2019, 02:24 AM   #6
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I had a 12 volt "cruise-n-comfort" in my Sprinter that I sold.
The outside condenser unit had a automotive type fan that ran on high constantly.
It didn't seem to cool at a true 8000 BTUs
It only consumed something like 40 amps at 12volts which is under 500w.
In my new campervan I installed at Colman mach 8 cub 115VAC rooftop air conditioner.
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Old 03-21-2019, 02:34 AM   #7
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I had a 12 volt "cruise-n-comfort" in my Sprinter that I sold.
The outside condenser unit had a automotive type fan that ran on high constantly.
It didn't seem to cool at a true 8000 BTUs
It only consumed something like 40 amps at 12volts which is under 500w.
In my new campervan I installed at Colman mach 8 cub 115VAC rooftop air conditioner.
Which model did you have? That has not been our experience. I will say each DC A/C that we have tested has not performed to specs. Even so we still prefer either the Cruise N Comfort for split or the Kingtec for rooftop. Would not install a typical RV A/C ever again.
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Old 03-21-2019, 02:42 AM   #8
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Which model did you have? That has not been our experience. I will say each DC A/C that we have tested has not performed to specs. Even so we still prefer either the Cruise N Comfort for split or the Kingtec for rooftop. Would not install a typical RV A/C ever again.
I had the VES12L. It is a split unit. The placement of the evaporator unit wasn't optimal. It was in the rear and it pointed to the center. I wanted to have a typical unit on this van. To be fair I had a passenger van without insulated curtains soo it would heat fast in the sun. I probably should have had a 20K btu air conditioner.
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Old 03-22-2019, 04:17 PM   #9
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Coachmen and Advanced RV are both using 12 volt DC AC in they're rigs. I was looking for some feed back on how well they worked.
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Old 03-22-2019, 04:31 PM   #10
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Which model did you have? That has not been our experience. I will say each DC A/C that we have tested has not performed to specs. Even so we still prefer either the Cruise N Comfort for split or the Kingtec for rooftop. Would not install a typical RV A/C ever again.
How much quieter are they? Cooling is important but maintaining my hearing is even more important to me.
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