Air Conditioner, plastic fitting question.
Senior User
Joined: Aug 2014
Posts: 269
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From: Florida
Jose A., After researching your question about HOF-1234yf compatibility with R134a it looks like that's not an option. Another thing you won't like is that HOF-1234yf is slightly less efficient than R134a. (That capacity drop will be overcome with design changes on new vehicles and you'll never know the difference.) Europe has already embraced HOF-134yf and outlawed R134a which is no surprise because we are no longer the world's leader in so many areas because of the climate change deniers. "HOF-1234yf has a global warming number rating of 4, which to the layman doesn't mean much, unless you compare it to R-134a's global warming number of 1200." That's the reason for the switch. You'll see changes to all the commonly used refrigerants in years to come in favor of these environmentally friendly compounds. HOF-1234yf is mildly flammable - not like gasoline but compared to R134a. You'll need certification before you'll be able to buy it and special equipment will be required to evacuate and recharge systems designed for its use. It requires POE oil and is not compatible with the PAG oil used in R134a systems. Its much more expensive to make than R134a. Try searching the Internet for "HOF-1234yf compatibility" for more on this topic.
Posting Guru
Joined: Jul 2004
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From: Mitchell, SD
I would not want HOF-1234yf in my car, it is very flammable, does not work as well as R134a let alone R12.
I say bring back R-12, it is the most efficient cooling chemical, and we have been not been using it for 20 years, yet the ozone hole has not been reduced?!?!?!? It was a lie, a BIG lie, but the gov and big business will not admit it because there is big bucks in trademarks and limited availability of products, plus the new regulations on being able to work on your own vehicle.
I say bring back R-12, it is the most efficient cooling chemical, and we have been not been using it for 20 years, yet the ozone hole has not been reduced?!?!?!? It was a lie, a BIG lie, but the gov and big business will not admit it because there is big bucks in trademarks and limited availability of products, plus the new regulations on being able to work on your own vehicle.
Lead Driver
Joined: Sep 2003
Posts: 7,013
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From: SoCal
Actually, direct observations show that the ozone hole is repairing itself, slowly, as a result of reduction of use of R12/R22:
Earth?s ozone layer is recovering - The Washington Post
Earth?s ozone layer is recovering - The Washington Post
Senior User
Joined: Aug 2014
Posts: 269
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From: Florida
Actually, direct observations show that the ozone hole is repairing itself, slowly, as a result of reduction of use of R12/R22:
Earth?s ozone layer is recovering - The Washington Post
Earth?s ozone layer is recovering - The Washington Post
Mountain Pass
Joined: Mar 2002
Posts: 227
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From: St Louis, MO
I've repaired a lot of things in my day but I never figured out how to fix stupid.
CO2 Global Warming Potential (GWP) = 1
HFO-1234yf GWP = 4
R-134a GWP = 1430
R-12 GWP = 10,900
The empirical evidence is in and those most knowledgeable in the science of global warming have proven the relationship between these chemicals and the harm they do. We are shepherds of this planet and we should be doing everything we can to minimized our presence and preserve it for posterity.
CO2 Global Warming Potential (GWP) = 1
HFO-1234yf GWP = 4
R-134a GWP = 1430
R-12 GWP = 10,900
The empirical evidence is in and those most knowledgeable in the science of global warming have proven the relationship between these chemicals and the harm they do. We are shepherds of this planet and we should be doing everything we can to minimized our presence and preserve it for posterity.
Lead Driver
Joined: Sep 2003
Posts: 7,013
Likes: 205
From: SoCal
As mentioned before, R134A has 1200 times the heat trapping capacity of CO2, so it's going to really warm up the atmosphere when it escapes cooling systems the way R12/R22 did.
Blame it on Dupont, who first developed the CFC refrigerants in the first place, which, while revolutionizing the refrigeration process, unleashed a chemical that was slowly eating away at the natural UV protection around the earth. Then they developed the HCFC (R134A) refrigerants that was less damaging to the O3 layer, but now traps heat in the atmosphere at remarkable rates to slowly cook us.
Blame it on Dupont, who first developed the CFC refrigerants in the first place, which, while revolutionizing the refrigeration process, unleashed a chemical that was slowly eating away at the natural UV protection around the earth. Then they developed the HCFC (R134A) refrigerants that was less damaging to the O3 layer, but now traps heat in the atmosphere at remarkable rates to slowly cook us.
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