Gas and Oil Home Heating Furnaces - adding freon
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Ronicky
06-19-02, 05:20 AM
How do i add freon without getting air in the lines. I have the gauges and would like to know how to do it properly. thank you
lynn comstock
06-19-02, 09:45 AM
Your lack of knowledge about HOW to add Freon suggests that you may not know the legal requirement. You cannot buy the freon or install it legally without an EPA licence.
yahoo2003
06-21-02, 10:41 AM
You can get an EPA Type I certificate for $30~$50 by mail-in or online test, then you will be legal to buy and recover Freon.
You will also learn a lot from the self-study materials.
Re-charge requires purge a small amount of Freon into air so you do need an EPA cert.
--- DIYer
You will also learn a lot from the self-study materials.
Re-charge requires purge a small amount of Freon into air so you do need an EPA cert.
--- DIYer
Jason R
06-21-02, 12:48 PM
I'm assuming that y'all know that the only thing that Freon is is r-12.
That is the only refrigerant that dupont calls Freon.
Are you talking about an automotive a/c unit here? I don’t think there is anything else a/c-wise that uses r-12.
In any case, you'll have to at least be EPA 609 certified to buy r-12 (easily done if you have about 20 bucks and the ability to take an open book test).
I believe you can buy r-22 with no certification if you are talking about a central or window unit.
Generally it's not detrimental to inject a small hose full of air into an a/c system. If you really want to be that perfect about it they do sell hoses with check valves in them so the refrigerant doesn't come out of them when you release them.
You could pull a vacuum on one of those hoses and put refrigerant in it before you hook it up to the system.
Or you could just let a little refrigerant gas fill it up by holding the hose upright (as if you are going to fill it with water). Loosen the valve a little on the can and it'll fill the hose with refrigerant gas, which will remain settled in the hose until you "pour” it out. Make the connection quick and you'll pretty much have the air out of the hose.
That is the only refrigerant that dupont calls Freon.
Are you talking about an automotive a/c unit here? I don’t think there is anything else a/c-wise that uses r-12.
In any case, you'll have to at least be EPA 609 certified to buy r-12 (easily done if you have about 20 bucks and the ability to take an open book test).
I believe you can buy r-22 with no certification if you are talking about a central or window unit.
Generally it's not detrimental to inject a small hose full of air into an a/c system. If you really want to be that perfect about it they do sell hoses with check valves in them so the refrigerant doesn't come out of them when you release them.
You could pull a vacuum on one of those hoses and put refrigerant in it before you hook it up to the system.
Or you could just let a little refrigerant gas fill it up by holding the hose upright (as if you are going to fill it with water). Loosen the valve a little on the can and it'll fill the hose with refrigerant gas, which will remain settled in the hose until you "pour” it out. Make the connection quick and you'll pretty much have the air out of the hose.
jonathanisaac
06-21-02, 10:25 PM
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