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Tool Talk Discussion Forum

Duracool refrigerants

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Bill Paschal

08-08-2003 11:42:18




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Does anyone have any experience with Duracool 12a as replacement airconditioner gas? Pros or cons.




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fred kobs

08-09-2003 03:16:19




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 Re: Duracool refrigerants in reply to Bill Paschal, 08-08-2003 11:42:18  
Hi, Bill. Duracool works very well as a drop-in replacement, but the fact that it's made from butane?? makes me think of flames blowing out the ducts in an accident. I have used it w/no problems in the stationary stuff and a couple of personal use tractors. I hate to convert to 134A on most vehicles due to the lack of condensor efficiency. Dodge has to be the worst at putting just enough condensor out front for R12 let alone try to run 134A thru them. Fred

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Jon H

08-08-2003 13:47:54




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 Re: Duracool refrigerants in reply to Bill Paschal, 08-08-2003 11:42:18  
This is a flamible hydrocarbon refrigerant, usually a mixture of propane and butane. I refuse to use them because of the fire danger and the fact that they are not legal for mobil ac use in aprox 15 states,mine included. Also few if any AC builders or rebuilders will warrenty parts if you use a hydrocarbon refrigerant,nor will most ac shops service equipment with this refrigerant.
Here is a link to the epa site with info on them.

http://www.epa.gov/ozone/snap/refrigerants/hc-12a.html#qdura

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Richard

08-09-2003 06:25:13




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 Re: Re: Duracool refrigerants in reply to Jon H, 08-08-2003 13:47:54  
We wouldn't want flammable freon! It might compete with the 30 gallons of gasoline under the seat and all the plastic and rubber in the vehicle.

Actually, I'd don't have any experience with it, but I would like to see opinions on other R-12 replacements. I know there is a lot of them out there nice and cheap and are suppose to be direct replacements and also allow mixing. Could be an interesting conversation.

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Jon H

08-09-2003 08:19:57




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 Re: Re: Re: Duracool refrigerants in reply to Richard, 08-09-2003 06:25:13  
Yes,the hydrocarbon refrigerant guys like to talk about the fact that the car has a tank full of gasoline with a chance of a fuel leak and fire under the hood. The difference is that an under hood fire has no direct path into the passenger compartment,while a leaking ac evaporator has a direct path into the passenger compartment. In fact air from the evaporator area is force fed to the passenger compartment by the blower motor and with its open brush type blower motor is a perfect ignition sorce for a hydrocarbon refrigerant,this is what turns me off to using them. according to the epa,any mixing of refrigerants is illegal and can cause corrosion,seal and hose damage + extreme high pressures if you have the wrong mix.
The non hydrocarbon replacements are usually a blend of several gases( usually as much as 70% 134a and another like 142b to get close to r12 pressures) The problem is that if the system leaks a little,the lighter gas in a blend will leak first and get the mixture all out of wack, this eliminates being able to just top up a low system.
I do all my own ac work and follow several good ac sites where you can get advice from experts who do ac work for a living. None have much good to say about the refrigerant blends. 134a is the approved replacement for R12,and has done well in the 20+ conversions I have done,atleast in my northern climate. The conversion is simple and cheap with the non blend gas avalible almost anywhere for cheap. Being a single gas,134a is simple to top up and no need to have seperate tools and reclaimer equipment for an oddball blend.
Try these AC sites for good info on conversions and alternative refriferants Link

Link href="http://www.aircondition.com/wwwboard/">Link

http://www.hdair.com/index.html

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Richard

08-10-2003 03:47:28




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 Re: Re: Re: Re: Duracool refrigerants in reply to Jon H, 08-09-2003 08:19:57  
Good Point! Air. Freon. And a blower motor. Man that sounds brutal with flaming AC Vents. I think I'll pass on it as well.



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Bill Paschal

08-08-2003 18:32:30




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 Re: Re: Duracool refrigerants in reply to Jon H, 08-08-2003 13:47:54  
Thanks for the info. I thought it sounded to good to be true.



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Roger

08-10-2003 19:55:29




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 Re: Re: Re: Duracool refrigerants in reply to Bill Paschal, 08-08-2003 18:32:30  
I put 3 cans of Duracool in my 87 Mustang. It works very well, is cheap, and has a higher ignition temperature than 134a.



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