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Author Topic: Refrigerant HC-12a - replacement for R12  (Read 4442 times)

David #19063

  • Guest
Refrigerant HC-12a - replacement for R12
« on: September 04, 2005, 12:02:30 AM »
Hello all,

Has anyone used Refrigerant HC-12a - replacement for R12?

http://www.foxtoolsupply.com/HC-12a.htm

Please let me know.

David

Mike #19861

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #1 on: September 04, 2005, 09:27:23 AM »

 Personally, I would highly recommend this over R134a or even R12. I have been using it for years (differant brand names) and am more than happy with it.

 It is more efficient, is enviromentally safe, less expensive and requires no retrofitting in either R12 or R134a systems. And it requires no special licences to handle. It can even be combined with these other refrigerants, although they do not recommend it.

 Mike

Denise 20352

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #2 on: September 04, 2005, 03:22:24 PM »

  Are they serious about using only 35percent of what the system originally called for?  Should the pressures then be the same as they were for R12?  How about the sight glass?  With 35percent charge, should it be free of bubbles?

thanks

-denise

Don Boshara #594

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #3 on: September 04, 2005, 03:32:58 PM »
HC12a could also be an excellent source for heating your car considering its made up of 65percent propane and 35percent butane. If your system has a leak, dont start your car or smoke!

Mike #19861

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #4 on: September 07, 2005, 09:15:12 AM »

 I think it is more like 60-70percent of the original charge.

  Mike

Mike #19861

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #5 on: September 07, 2005, 09:19:46 AM »

 That is what it is made of. Actually isobutane, which has a slightly differant chemical makeup. But that is why it is called Hydrocarbon.

 Gas and oil is also hydrocarbon, as well as most all of the rubber and plastic in the car.

 As far as I know, there have been no reports of fires or explosions resulting from leaks. Red Tek 12a has a strong pine odour you can smell when it leaks, and they suggest you shut off the engine and extiguish any cigarettes when the odour is detected. A safe guard no doubt for the lawyers.

 Mike

Denise

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #6 on: September 07, 2005, 01:56:54 PM »

  If it is flammable, I wouldnt use it.  Since there is no firewall between the evaporator case and the cabin, a leak in the evaporator could cause flammable fluid to enter the passenger compartment.  I like to keep all of my flammable fluids on the other side of the firewall.  Just my opinion.

-denise

william hunter

  • Guest
Answer:
« Reply #7 on: September 07, 2005, 04:43:38 PM »
There are laws in most states against the use of propane and/or butane inside refrigeration systems.
You need to search the topic better, there are many death/injury reports over the last thirty years.

wm link

  • Guest
Try FREEZE 12 for a replacement for R12
« Reply #8 on: September 07, 2005, 06:22:00 PM »
Works great!

Denise

  • Guest
Re: Try FREEZE 12 for a replacement for R12
« Reply #9 on: September 07, 2005, 07:52:43 PM »

  Is it compatible with freon and oil so that you can top off with it, or do you have to drain and flush?

thanks

-denise

wm link

  • Guest
Re: Try FREEZE 12 for a replacement for R12
« Reply #10 on: September 07, 2005, 09:35:40 PM »
EPA requires that it NOT be mixed with R-12...otherwise its a drop in replacement for R-12 MOBILE (cars) systems, including oil(500-525 mineral oil)...you use about 5percent less freeze 12 than R-12.

william hunter

  • Guest
on topic thread link.
« Reply #11 on: September 08, 2005, 03:30:14 PM »

Don Boshara #594

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #12 on: September 10, 2005, 04:23:48 PM »
From  a 2001 EPA Q&A posting:

4. May hydrocarbon refrigerants be used to replace CFC-12, commonly referred to as "Freon® ," in cars?
No. It is illegal to use hydrocarbon refrigerants like HC-12a® and DURACOOL 12a® as substitutes for CFC-12 in automobile or truck air conditioning under any circumstances.

Mike #19861

  • Guest
Re: Refrigerant HC-12a - replacement for R12
« Reply #13 on: September 12, 2005, 07:20:12 AM »

 Just where is it illegal? Perfectly legal here in Canada and at least most of the US.

  Mike

 

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