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Refrigerant question for you Phase Boys

post #1 of 18
Thread Starter 
Alright, my family owns an auto shop, and I know we were forced to switch to R-134a because R-12 was "harmful to the environment and ozone". I know you really can't order R-12 anymore, so what do you all use? I know R-12 was realllly good. Also, what are you all paying for a tank of refrigerant?

Thanks!
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MONOLITH
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post #2 of 18
i think R22 is much better than R12.
For high pressures gases you can use R404A or R507
with the EPA of course.
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post #3 of 18
Duracool 12a is better than either R-12 or R-134, is compatible with both systems, and is safe for the environment.
They also make a R-22 and R-502 replacement as well.

http://www.duracool.com/Duracool/refrigerants.html
    
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post #4 of 18
Guys,

Before you start substituting refrigerants, be SURE that the oil in the compressor is compatible with the refrigerant you are changing to. You could end up with a scrambled compressor.
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post #5 of 18
Thread Starter 
Quote:
Originally Posted by hvacgaspiping View Post
Guys,

Before you start substituting refrigerants, be SURE that the oil in the compressor is compatible with the refrigerant you are changing to. You could end up with a scrambled compressor.
HAH! That is so true! We had people going straight from R-12 to 134a in their cars without changing the system.

Where do you all buy refrigerant?
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post #6 of 18
Don't you need a license to buy refrigerant? I
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post #7 of 18
Quote:
Originally Posted by DuckieHo View Post
Don't you need a license to buy refrigerant? I
Candlejack?

You only need licenses for a couple of refrigerants... things such as propane doesn't need a license.
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post #8 of 18
I don't believe so, seeing as you can buy small cans of 134a at the Wal-Mart.
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post #9 of 18
You can get R-134A and even some leftover cans of R-12 at some places, but any other CFCs or HCFCs you must have a CFC card. This is available only to people who have refrigeration licenses or unlimited contractor licenses. Needless to say, ALL of the above require examinations.
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post #10 of 18
Yep, I got my universal cert. The Navy was good for something
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