[AT] R134a

[Cecil Bearden]

I have recharged a lot of r-12 systems with Red Tek 12A.  They have 
changed it somewhat to another name, but another brand is Freeze-12.  
works good in r-12 systems better than R134A.  It has propane and n-iso 
butane in it.  Pure propane will also work, but the possibility of fire 
limits its use to stationary refrigeration systems.   Once I bought some 
replacement refrigerant that was supposed to be the same thing as Red 
Tek and spent $300 on parts and 3 days to make a van blow cold air.   
Got rid of the new stuff and went back to R134a and it worked fine.  Had 
a leak later and filled it with Red-Tek and it would frost the 
windshield.  Feds imposed a floor tax of $25/lb on R-12.  If you have a 
jug of it, Uncle Sam wants his floor tax..... I wish I had bought a 
pallet load of R-12 back when it was $20.lb
Cecil

On 1/12/2019 5:12 PM, Steve Offiler wrote:
> R134a is crap?  Really?  My ‘97 F250 had an R134a system that would still make icicles in the cab when I sold it 19 years later.  Zero work ever done on that system.  2003 Focus, system worked fine when sold in 2014.  Zero work on it.   Wife’s ‘01 Honda CR-V, 210,000 miles, ditto. Blew cold air until the day we sold it, never worked on.
>
> Now, i would not be surprised to learn that the conversions from R12 were somehow lacking, if that’s what you mean.
>
> SO
>
> Sent from my iPhone
>
>> On Jan 12, 2019, at 2:46 PM, <bloomis at charter.net> <bloomis at charter.net> wrote:
>>
>> In the early 90s. Part of the reason I left the commercial refrigeration
>> trade. The transition from fluorocarbons to all the alphabet soup of
>> refrigerants today was a real pain. Went to Ammonia refrigeration. Much
>> easier. I still have a 30# of R-12. Well I guess it's a 29.5 since I
>> recharged my daughter's Saab long ago. 134a is crap. Contractors made a lot
>> of money replacing compressors. Auto A/C worked way worse. But autos were
>> the chief culprit of refrigerant into the atmosphere. Not the ice machine
>> with 1000lb charges, but the how ever many hundred million leaky autos.
>> Bradford
>>
>> -----Original Message-----
>> From: AT <at-bounces at lists.antique-tractor.com> On Behalf Of James Peck
>> Sent: Saturday, January 12, 2019 11:08 AM
>> To: 'at at lists.antique-tractor.com' <at at lists.antique-tractor.com>
>> Subject: [AT] R134a
>>
>> Is R134a the refrigerant currently used in the air conditioning of ag
>> equipment. When was R12 fhased out.
>>
>> https://www.natex.org/site/391/Careers-Learning/The-NATE-Magazine
>>
>> https://harryferguson.blogspot.com
>>
>>
>>
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