diy solar

diy solar

DC Air Conditioner (minisplit/rooftop/anything)

That dc airco one looks sketchy. There are a few on ebay that might come from the us, but probably not. Honestly, I think getting them from the source is the only way to go right now.

I like the mini split wall mount vs. the ceiling mount. I think we can them cheaper than the treeger on amazon, even with the expensive shipping from China.

I have a portable 10k btu in my camper right now it it's more than enough for what I'm trying to do. I'm guessing I would be okay with a 6k btu.

I have seen tons of these on the back of trucks. I'm surprised we aren't finding more.

Wholesale China Heavy Vehicle Accessories Split Wall Air Conditioner 24v For Truck - Buy Split Air Conditioner For Truck,Split Wall Air Conditioner For Engineering Machinery Excavator,24v Excavator Electric Parking Air Conditioning Product on Alibaba

Wholesale China Heavy Vehicle Accessories Split Wall Air Conditioner 24v For Truck - Buy Split Air Conditioner For Truck,Split Wall Air Conditioner For Engineering Machinery Excavator,24v Excavator Electric Parking Air Conditioning Product on Alibaba.com
www.alibaba.com www.alibaba.com

12v 24v Electric Dc Split Parking Air Conditioner For Truck Tractor Cab Universal - Buy 12v Truck Air Conditioner 24v Air Conditioner For Truck 10000btu Split Air Conditioner Product on Alibaba.com

12v 24v Electric Dc Split Parking Air Conditioner For Truck Tractor Cab Universal - Buy 12v Truck Air Conditioner 24v Air Conditioner For Truck 10000btu Split Air Conditioner Product on Alibaba.com
www.alibaba.com www.alibaba.com
 
bgflyguy said:
That dc airco one looks sketchy. There are a few on ebay that might come from the us, but probably not. Honestly, I think getting them from the source is the only way to go right now.

I like the mini split wall mount vs. the ceiling mount. I think we can them cheaper than the treeger on amazon, even with the expensive shipping from China.

I have a portable 10k btu in my camper right now it it's more than enough for what I'm trying to do. I'm guessing I would be okay with a 6k btu.

I have seen tons of these on the back of trucks. I'm surprised we aren't finding more.

Wholesale China Heavy Vehicle Accessories Split Wall Air Conditioner 24v For Truck - Buy Split Air Conditioner For Truck,Split Wall Air Conditioner For Engineering Machinery Excavator,24v Excavator Electric Parking Air Conditioning Product on Alibaba

Wholesale China Heavy Vehicle Accessories Split Wall Air Conditioner 24v For Truck - Buy Split Air Conditioner For Truck,Split Wall Air Conditioner For Engineering Machinery Excavator,24v Excavator Electric Parking Air Conditioning Product on Alibaba.com
www.alibaba.com www.alibaba.com

12v 24v Electric Dc Split Parking Air Conditioner For Truck Tractor Cab Universal - Buy 12v Truck Air Conditioner 24v Air Conditioner For Truck 10000btu Split Air Conditioner Product on Alibaba.com

12v 24v Electric Dc Split Parking Air Conditioner For Truck Tractor Cab Universal - Buy 12v Truck Air Conditioner 24v Air Conditioner For Truck 10000btu Split Air Conditioner Product on Alibaba.com
www.alibaba.com www.alibaba.com
Click to expand...
While in general I love mini split - I got an RV with Air ducts in the ceiling. With a wall mounted Split Unit half of the RV would not be cooled.....
The KingClima roof units are only 8 inches tall. My current RV roof A/C unit is 14 inches tall.

For my old Van build project - Oh yeah I would take the split unit in a heartbeat.

$280 + shipping?

24v Auto Accessories Wholesale Portable Car Electric Split-type Air Conditioner For Heavy Vehicle And Engineering Machinery - Buy Auto Accessories Wholesale Air Conditioner For Heavy Vehicle,Portable Electric Air Conditioner For Truck Touring Car,24v

24v Auto Accessories Wholesale Portable Car Electric Split-type Air Conditioner For Heavy Vehicle And Engineering Machinery - Buy Auto Accessories Wholesale Air Conditioner For Heavy Vehicle,Portable Electric Air Conditioner For Truck Touring Car,24v Air Conditioner For Truck Touring Car And...
www.alibaba.com www.alibaba.com

With a nice looking interior air handler.

Hm wonder if you can undermount the condenser, in the pictures they got them vertical on the wall or horizontal on the roof. I could just install two - one in the back with Condenser on the rear of the RV and one in the front with Condenser underneath - just remove one of the storage compartments and replace the door with grill.
Two zone A/C :p
 
I think DCAirco is mainly in a niche market for mining equipment and other commercial industries. It does appear they aren't interested in the retail DIY customer. I don't blame them, look at some of the issues you see in these forums with various posters having problems getting systems running or troubleshooting them.
 


Expensive:

IQ – No-Idle AC Unit for Trucks (Unit Only) – Cool-it

cool-it.ca cool-it.ca

Cheap:

These are all starting to look the same.

Wall Split Parking Air Conditioner 12v 24v Electric Dc Universal Truck Sleeper Air Conditioner - Buy Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Sleeper Air Conditioner Product on Alibaba.com

Wall Split Parking Air Conditioner 12v 24v Electric Dc Universal Truck Sleeper Air Conditioner - Buy Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Sleeper Air Conditioner Product on Alibaba.com
www.alibaba.com www.alibaba.com

I bet the yellow one is the fastest though.

Mini Wall Split Parking Air Conditioner 12v 24v Electric Battery Powered Box Type Slpper Air Conditioner For Truck Excavator - Buy Mini Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Excavator Sleeper Air Conditioner Product on Alibaba.

Mini Wall Split Parking Air Conditioner 12v 24v Electric Battery Powered Box Type Slpper Air Conditioner For Truck Excavator - Buy Mini Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Excavator Sleeper Air Conditioner Product on Alibaba.com
www.alibaba.com www.alibaba.com
 
bgflyguy said:


Expensive:

IQ – No-Idle AC Unit for Trucks (Unit Only) – Cool-it

cool-it.ca cool-it.ca

Cheap:

These are all starting to look the same.

Wall Split Parking Air Conditioner 12v 24v Electric Dc Universal Truck Sleeper Air Conditioner - Buy Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Sleeper Air Conditioner Product on Alibaba.com

Wall Split Parking Air Conditioner 12v 24v Electric Dc Universal Truck Sleeper Air Conditioner - Buy Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Sleeper Air Conditioner Product on Alibaba.com
www.alibaba.com www.alibaba.com

I bet the yellow one is the fastest though.

Mini Wall Split Parking Air Conditioner 12v 24v Electric Battery Powered Box Type Slpper Air Conditioner For Truck Excavator - Buy Mini Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Excavator Sleeper Air Conditioner Product on Alibaba.

Mini Wall Split Parking Air Conditioner 12v 24v Electric Battery Powered Box Type Slpper Air Conditioner For Truck Excavator - Buy Mini Wall Split Parking Air Conditioner 12v 24v Electric Dc truck Excavator Sleeper Air Conditioner Product on Alibaba.com
www.alibaba.com www.alibaba.com
Click to expand...
There is probably a large factory now cranking out those things and multiple sellers are putting their spin on it. It's not like that a DC Air conditioner is anything fancy or high tech. The technology has been there for years. Ever since Toyota put a DC Compressor in their Prius a decade ago or so.
 
Prius uses high voltage for compressor power, big difference between 400V and 12V.

Basically, it seems they are adding an electric brushless motor to the end of an automotive scroll compressor. I'm wondering if the compressor is hermetically sealed.
 
Zwy said:
Prius uses high voltage for compressor power, big difference between 400V and 12V.

Basically, it seems they are adding an electric brushless motor to the end of an automotive scroll compressor. I'm wondering if the compressor is hermetically sealed.
Click to expand...
12V 24V feeds the control board (inverter) board - from there it goes 3 wire into the compressor.

you don't know what they are running between the controller and the compressor. Could be really anything, it will be more then 12V could be 200V for all we know.

1622805000068.png
 
I'll jump in OT, since the thread is.alive.
Some pointers to mobile a/c that can run off my gen, honda 2000/1700 surge.
Cargo trailer build .
600 watt inverter runs my fridge.
I'll light the gen for a/c, if required.
May hafta go ducted portable, but I despise them
 
eXodus said:
12V 24V feeds the control board (inverter) board - from there it goes 3 wire into the compressor.

you don't know what they are running between the controller and the compressor. Could be really anything, it will be more then 12V could be 200V for all we know.
Click to expand...
The info in this article is from MACS which is the Mobile Air Conditioning Society. MACS is the go to source for any information concerning mobile air Conditioning systems and provides instruction to the industry. https://aviondemand.com/insider/mastering-hybrid-hvac-systems-pt-1/

Early models used a belt driven compressor, that is not relevant. Skip to the part:

2004 – 2009 Generation II Prius – High Voltage AC A/C​


201V AC 3 phase power
 
Deye, a Chinese company is building 48 volt DC Mini Split Air Conditioners. They also build the Sol Ark and Sunsynk inverters and seem to be a reputable company based on all of the positive posts on this site and others. Their You Tube channel is growing.

My intended use is in a well insulated 7' x 14' "V" nose cargo trailer with basic living quarters for two humans and a cat.

I have no affiliation with Deye, but I own 5 of their 8kW inverters rebranded under the name Amensolar. They are not installed yet so I have no real world information.

 
bgflyguy said:
I'm trying to put together a list of what is a available for DC air conditioners. I think there are a few more options in the trucking industry, that we might be missing. I would love to get feedback on any of these options. I know there was a thread where someone popped in to say they were installing a chinese AC, but i never saw any results. I'm not going to document every model from each manufacturer, and if there is a specific model that stands out above the rest please let us know.

There are couple of well documented expensive options:

CruisenComfort HD-12L 8K BTU/h - https://www.cruisencomfortusa.com/
Click to expand...
The 24V 7K is very interesting. I could run that on battery power alone for 20 hours.
 
So there are 4. basic mounting options:

1. On the roof - all in one Unit.
2. Split - with vertical Condenser Unit - only possible at the back of the RV
3. Split - with horizontal Condenser - undermount (compartments or free space on the frame)
4. Split - with horizontal Condenser - Roof Mount

I'm torn between 1 and 3 :p The easy of installation of a Roof Unit - would be nice.
Yet I'd like the noise reduction of a split and potential efficiency gain.

Further I like to get stuff off my roof to fit more solar panels.
I don't like mounting stuff on the back of the RV - there is my bedroom and strapping a compressor to that wall - yeah no deal.
 
eXodus said:
So there are 4. basic mounting options:

1. On the roof - all in one Unit.
2. Split - with vertical Condenser Unit - only possible at the back of the RV
Click to expand...

It could be mounted on the front.....

I'm thinking of how I haul the ebikes on back plus add a condensing unit on the back wall. 1/2 of my back wall as taken up by the installation of the compartment housing my Growatt. I want the ability to pull my boat behind with all this back there. :cool:

eXodus said:
3. Split - with horizontal Condenser - undermount (compartments or free space on the frame)
Click to expand...

From past experience with undermount condensers, the road debris and other items take a toll on the units. The fans usually fail from water intrusion. If you were to drive in the winter with an area of salt, it really is hard on the unit.

If one is to only drive highways and not in winter, you would add some life to it.

eXodus said:
4. Split - with horizontal Condenser - Roof Mount
Click to expand...

Actually starting to look better provided it fits under my tilting panel assembly. If using the ac, the panels would be tilted up anyway.

eXodus said:
I'm torn between 1 and 3 :p The easy of installation of a Roof Unit - would be nice.
Yet I'd like the noise reduction of a split and potential efficiency gain.

Further I like to get stuff off my roof to fit more solar panels.
Click to expand...

Build a tilting rack over the top of the unit.
eXodus said:
I don't like mounting stuff on the back of the RV - there is my bedroom and strapping a compressor to that wall - yeah no deal.
Click to expand...
I sleep opposite end, I just don't have room unless bike rack goes up front in front receiver hitch.
 
4. Split - with horizontal Condenser - Roof Mount
Click to expand...

Actually starting to look better provided it fits under my tilting panel assembly. If using the ac, the panels would be tilted up anyway.

Mr. Zwy or anybody else reading, have you located a split with a horizontal condenser on the roof????

That is what I need and want.

If you know of any options PLEASE share them.

Thank you ALL
 
Zwy said:
From past experience with undermount condensers, the road debris and other items take a toll on the units. The fans usually fail from water intrusion. If you were to drive in the winter with an area of salt, it really is hard on the unit.

If one is to only drive highways and not in winter, you would add some life to it.


Actually starting to look better provided it fits under my tilting panel assembly. If using the ac, the panels would be tilted up anyway.



Build a tilting rack over the top of the unit.

I sleep opposite end, I just don't have room unless bike rack goes up front in front receiver hitch.
Click to expand...
The DC units are actually pretty flat compared with regular A/Cs Only like 8 inches tall. Yet they also vent hot air out through the top. not a good idea covering them with solar.
Otherwise - with the efficiency gained - I might not need the additional space.

1. rule about off grid solar - don't use solar - safe energy first.

For undermount - I was thinking inside one of the luggage compartments - Those things width doors and seals.
Replace the door with some water repelling grate. Or automate and use some power louvers.

I live in Florida and deal with a lot of water all the time - but no salt.
 
eXodus said:
The DC units are actually pretty flat compared with regular A/Cs Only like 8 inches tall. Yet they also vent hot air out through the top. not a good idea covering them with solar.
Click to expand...

Tilting panels, ac running, panels are tilted. Or panels on drawer slides, use an electric actuator to push the panels outwards. There are ways, just be creative. I have 2 panels mounted to tilt on each side of my roof air, if the DC unit fits under, I'm golden.

eXodus said:
Otherwise - with the efficiency gained - I might not need the additional space.

1. rule about off grid solar - don't use solar - safe energy first.

For undermount - I was thinking inside one of the luggage compartments - Those things width doors and seals.
Replace the door with some water repelling grate. Or automate and use some power louvers.

I live in Florida and deal with a lot of water all the time - but no salt.
Click to expand...

I think you would be better served on the back wall or roof.
 
apcorob said:
Actually starting to look better provided it fits under my tilting panel assembly. If using the ac, the panels would be tilted up anyway.

Mr. Zwy or anybody else reading, have you located a split with a horizontal condenser on the roof????

That is what I need and want.

If you know of any options PLEASE share them.

Thank you ALL
Click to expand...
I've been following this thread with interest for several reasons. One, I'm interested in installing one on my RV. Two, I currently work in the mobile HVAC field as a specialist and this might be a business opportunity for me. By purchasing a unit and installing it, I can then determine what I would want to provide to customers.

I have some other things to work on right now but could see some testing taking place in the future.
 
I've got a 24v system which I step down to 12v for the 12v appliances. Who knows of some 24v appliances that they can recommend? I most need an AC unit; drove 4200 miles so far and the sun is intense. Nights are hot regardless of shade. Looking for a portable unit for inside my camper van. Thanks in advance.
 
Last edited:
guidecca said:
I've got a 24v system which I step down to 12v for the 12v appliances. Who knows of some 24v appliances that they can recommend? I most need an AC unit; drove 4200 miles so far and the sun is intense. Nights are hot regardless of shade. Looking for a portable unit for inside my camper van. Thanks in advance.
Click to expand...
I'm installing an LG Mega 115v series 12K BTU mini split in my travel trailer this weekend. It will run off my Victron inverter. You can buy cheaper mini splits on Amazon. I didn't find any DC (12, 24, or 48 volt) air conditioners that were cost effective. I can add two more batteries and more solar to my roof PLUS the 115v mini-split for the same or less than trying to use one of the DC air conditioners.

If my rooftop A/C hadn't died two weeks ago I might be inclined to roll the dice and try one of the cheapie units from Alibaba but I just couldn't work up the nerve to risk it, let alone the time it would take to get here.

Do you have an inverter in your set up? If so, maybe you could consider traditional residential mini-splits that run of alternating current.
 
Please report back when you are up and running

Would like to hear electrical consumption reports and specs on the rest of your system
 
Zwy said:
One, I'm interested in installing one on my RV. Two, I currently work in the mobile HVAC field as a specialist and this might be a business opportunity for me. By purchasing a unit and installing it, I can then determine what I would want to provide to customers.
Click to expand...
maybe this qualifies as a horizontal mini-split.... I am also thinking of this: E-Clima6000 Sleeper Cab AC
 
I've been watching videos of what Tesla might do if it enters the HVAC market. It seems like it might be increased efficiency plus integration, which is what they did with their cars (the octovalve). One opportunity for integration in my RV might be using the expelled heat from the AC to heat water for the hot water tap. It's a shame to throw all that heat away and then use propane to get hot water. And couldn't that same heat cool my refrigerator? I'm using ammonia heated by electricity or propane currently. It seems to me there is a lot of opportunity to make the whole setup more efficient.

And their heat pump in the Model Y works in low temps, too (apparently -4 F).
 
K8MEJ said:
I didn't find any DC (12, 24, or 48 volt) air conditioners that were cost effective. I can add two more batteries and more solar to my roof PLUS the 115v mini-split for the same or less than trying to use one of the DC air conditioners.
Click to expand...
I think this is the main issue: Cost.

Those 24V truck A/Cs you can get in China / Asia / Australia for like 300-400. While on the US side they run you $900. (probably shipping and tariffs)
A DC Split system shouldn't be costing more then a Window A/C, they are small, compact, cheaply build. No patents, nothing..

aangel said:
One opportunity for integration in my RV might be using the expelled heat from the AC to heat water for the hot water tap. It's a shame to throw all that heat away and then use propane to get hot water. And couldn't that same heat cool my refrigerator? I'm using ammonia heated by electricity or propane currently. It seems to me there is a lot of opportunity to make the whole setup more efficient.
Click to expand...
There is soooo much untapped integration potential in an RV.
The warm exhaust of your fridge could be used for the Waterheater :p Excess solar energy could be used in the Heater
The coolant of your engine could be used for waterheater. The waterheater could be used for radiant floor heating etc.

When you got a self driving RV - you already got a large A/C in your dashboard - why not use all those parts? Just switch the compressor to electric. why have another one on the roof?
I think Tesla is going the right direction. But as long as RVs are not built on a electric platform we will not see a lot of this. Would love to have electric Sprinter or GM Brightdrop based RV.
 
I finally looked over all of the offerings from KingClima, and the CoolPro 3000 looks prefect for my needs. Just waiting to hear back from Danny Wu with the cost and more info. Pretty decent specs it looks like though.

CoolPro3000 Truck Cab Air Conditioner - KingClima

CoolPro3000 truck cab air conditioner is battery power ac that independent the truck engine to working for cooling solutions with 3000W cooling capacity and 12V or 24V voltage.
www.climaac.com
 
You must log in or register to reply here.

Similar threads

K
air conditioner disconnect for solar DC disconnect?
Replies
19
Views
1K
Hedges
Hedges
D
Chinese 48V DC mini-split air conditioning - any thoughts?
2
Replies
26
Views
4K
Groscout
Groscout
D
Off grid solar air conditioning system for my parents studio
Replies
11
Views
1K
electrostasis
E
jameshowison
Shore power for DC Air conditioner (or other constant DC loads)?
Replies
10
Views
1K
jameshowison
jameshowison
B
Solar Powered 12volt Air Conditioner | Dometic RTX 2000 |
Replies
23
Views
14K
robstrom
R

diy solar

diy solar
Back
Top