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Old 06-28-2014, 09:44 AM   #1
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Central Air Drier Replacement


Hello!

I've looked everywhere and need a simple answer. I don't want to be in violation of the EPA 608 Cert so I need some help.

I want to replace my AC drier as a preventative measure. It's connected with flare connections so I can easily change it.

If I change this, will any freon be released? My understanding is that it's a high pressure discharge from the Compressor so it I should be good to change it without evac or recharge.

Please advise.

Thanks in advance!

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Old 06-28-2014, 10:13 AM   #2
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Central Air Drier Replacement


Nobody changes them for preventative measure so it is a waste of time and $$ IMO. The only time we change them is if the compressor burns out. You would have to pump all the Freon back into the outdoor unit and then replace it and then pull a vacuum on that piece of line with a vacuum pump and then release the Freon. Not a DIY project IMO. Not sure if the EPA allows you to do that work as a tiny amount of Freon may get released if you don't suck all the Freon back into the outdoor unit properly. Once you start messing with the service valves it is very common for leaks to occur.

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Last edited by yuri; 06-28-2014 at 10:19 AM.
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Old 06-28-2014, 02:30 PM   #3
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Central Air Drier Replacement


Home warranty states must be changed every 3 years or as needed. So I need to evacuate the compressor to change out the drier is what I'm understanding. If that's the case, I'm not certified to handle refrigerant yet. Going for license in August.

I service the electrical components so I figured I should learn the rest, too. (Electrician)
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Old 06-28-2014, 02:33 PM   #4
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That's a bunch of bullsheet IMO. The system is sealed and there is NO way anything can get in. I would go with a different Home Warranty company. First I ever heard of this ( as needed? the only time it is needed is after a compressor replacement/burnout). Post the name. I am sure the other techs may want to know and may have advice.

Did you have a burnout or replacement?

Even when that happens we flush the system and change the drier and unless it is a expensive commercial unit nobody goes back to change driers that I know of.
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Old 06-28-2014, 03:53 PM   #5
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Central Air Drier Replacement


Home warranty company should then show you proof that changing it every 3 years does any good.

The more often a system is opened, the more risk of a contaminate getting in and doing harm.

Lots of 15 plus year old liquid line filter driers in that are not restricting and still doing their job of keeping the system clean and dry. Why? Because no one opened those systems up needlessly.
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Old 06-28-2014, 04:48 PM   #6
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HSA home warranty. Sounds like it might be a way of making money.

In any case, if it were opened it would need a full evac and refill because the line would be exposed, correct? (Sorry, I like to know as much as possible about things to avoid being screwed at some point in my life.)
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Old 06-28-2014, 04:52 PM   #7
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The system would have to be pumped back to itself, or recovered. Then after the drier was changed. The system would need to be vacuumed down, and then the charge released/ put back into the system.
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Old 06-28-2014, 05:31 PM   #8
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Change every 3 years or AS NEEDED. You answered your own question in your post. It's not needed if the system was not opened. forgetaboutit.
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Old 06-28-2014, 06:14 PM   #9
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It is not needed PERIOD. The procedure to do it is way beyond most DIYers ability. Very good chance you will have a Freon leak after that as the service valves that you would have to open and close to pump it back into the outdoor unit DO NOT like to be turned after sitting a long time. You may create a leak there and create a huge problem for yourself. If it ain't broke don't go fixin it. Switch companies.
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Old 06-28-2014, 07:15 PM   #10
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we have done work for hsa....alot of furnace and a/c work...never was replacing a drier on a/c system requested.....only when we opened a system for service...
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Old 06-29-2014, 07:45 AM   #11
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Quote:
Originally Posted by COLDIRON View Post
Change every 3 years or AS NEEDED. You answered your own question in your post. It's not needed if the system was not opened. forgetaboutit.
He said " Change every 3 years or as needed." Otherwise the home warrenty is not valid.
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Old 06-29-2014, 07:52 AM   #12
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That's exactly my point. As needed means if it was never opened it never needed changing and the warranty is still good.
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Old 06-29-2014, 08:49 AM   #13
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Probably some loop hole for them to deny you a claim if you had a compressor replaced and then it failed again. Not sure how they work. If they replace then entire condensor and the compressor fails they may say the filter was not changed. Greasy business that Home warranty biz.

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