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riderman
10-01-2011, 11:47 PM
I have to replace a blown compressor on a Carrier 38 AK007 unit next week. After the flush and installing both liquid line\suction filters, is there a acid nutralizer that is needed or required to be added with the refrigerant? I dont have any, never heard of it, and didnt plan on using any. Someone asked me this question today and now has me wondering.

basshound71
10-02-2011, 12:11 AM
wouldnt hurt. Acid a Way is what I use

riderman
10-02-2011, 12:26 AM
wouldnt hurt. Acid a Way is what I use

Thank you for the quick responce. I just researched AaW. What is the negative of using these product's? I dont use leak sealers' etc. Most are witches brew additions that mask a real problem, IMHO. This product, I'm not so sure about the negative connotations. I'm thinking, with such a small amount of this product, what can it hurt? When I go back and pull the suction line filter after a couple of day's I sometimes flush the system again if the acid detector indicates a small amount of acid still in the system. If this saves a 3rd pulldown, it would be awsome.

basshound71
10-02-2011, 12:33 AM
All it is is oil with a neutrilizing agent. Works well, been using it for years

jpsmith1cm
10-02-2011, 07:40 AM
Speaking from a checmical standpoint, when you "neutralize" an acid, you do so by adding a base or alkyline chemical to it.

A few things about this.

1> There must be a correct amount of alkyline added to neutralize the acid. If not, the system remains acidic OR it can go to an alkyline if you add too much.

2> Once the Acid/base reaction is done, the chemical byproducts of that reaction are WATER and metal salt.

Do you really want that crap in your system?


Didn't think so.

trouble time
10-02-2011, 07:56 AM
I have never had a problem after using Acid-a-way. I have gone back and checked with a test strip, no acid present. I use it whenever I change a compressor or component in a system where I suspect acid.

bunny
10-02-2011, 10:25 AM
Acid Away used to state in their application instructions that the product was to be used as a supplement to the proven method of removing acid (use of a liquid and suction filter-drier). I could not find this verbiage anywhere in the current literature.

They state that they have tested the product with a wide variety of compressors. I doubt there are any compressors who have approved it's use.

As JP stated, AAw produces byproducts that remain in the system. Whether these byproducts can be traced to be the cause of further system problems....hard to say.

I'm kind of a purist in my belief that only refrigerant and oil belong in the system.

Hardwater
10-02-2011, 11:12 AM
Speaking from a checmical standpoint, when you "neutralize" an acid, you do so by adding a base or alkyline chemical to it.

A few things about this.

1> There must be a correct amount of alkyline added to neutralize the acid. If not, the system remains acidic OR it can go to an alkyline if you add too much.

2> Once the Acid/base reaction is done, the chemical byproducts of that reaction are WATER and metal salt.

Do you really want that crap in your system?


Didn't think so.

I totally agree with this statement!! new compressor new clean oil and a flush of the system can always be done before installing the new compressor.

second opinion
10-03-2011, 09:16 AM
Speaking from a checmical standpoint, when you "neutralize" an acid, you do so by adding a base or alkyline chemical to it.

A few things about this.

1> There must be a correct amount of alkyline added to neutralize the acid. If not, the system remains acidic OR it can go to an alkyline if you add too much.

2> Once the Acid/base reaction is done, the chemical byproducts of that reaction are WATER and metal salt.

Do you really want that crap in your system?


Didn't think so.

response

mikep
10-03-2011, 10:32 AM
There has never been a need to do anything more than replace the liquid line drier and add a suction line drier for a burnout, period. No flushing chemicals, no additives. Every compressor manufacturer has written this into their change out procedures. I use to have the pdf from Copeland that states that they have never seen a system that has not been thoroughly cleaned by this method. Maybe someone here can post this.

mikep
10-03-2011, 10:38 AM
Here it is:

riderman
10-03-2011, 08:47 PM
Thanks guy's for the info. My only question is, why not flush the system after a burn out? I've never replaced a burnt compresor without flushing the system. But, hey, That's how I learn. From people who have been there and done that like the people here. If it saves time and money and is correct, I'm all for it.

jimj
10-03-2011, 10:52 PM
They state that they have tested the product with a wide variety of compressors. I doubt there are any compressors who have approved it's use.

system.

You would be WRONG, Trane recommends it!:grin2:

tb5000
12-04-2011, 02:43 PM
I have observed multiple system with clogged filter-dryer from Acidaway. Several with multiple dryers clogging.

jimj
12-04-2011, 02:57 PM
I have observed multiple system with clogged filter-dryer from Acidaway. Several with multiple dryers clogging.

And how could you tell that?:whistle:

AC5096
12-04-2011, 03:35 PM
What's the word on this product?

http://www.youtube.com/watch?v=_ITkAnHZOjw

tb5000
12-04-2011, 04:53 PM
Qwikshot is not an acid neutrallizer. It is advertized to work by asorbing acid. The acid neutrallizers do produce water as a byproduct. The systems I saw had Acidaway added with comprerssor replacement. I have used suction driers for 30 years and have only seen a couple that clogged when cleaning up system after burnout. The systems I am referring to as having clogged driers, I know had acidaway added along with suction and liquid driers. The driers were replaced an additional 3 times.

AC5096
12-04-2011, 05:41 PM
Qwikshot is not an acid neutrallizer. It is advertized to work by asorbing acid. The acid neutrallizers do produce water as a byproduct. The systems I saw had Acidaway added with comprerssor replacement. I have used suction driers for 30 years and have only seen a couple that clogged when cleaning up system after burnout. The systems I am referring to as having clogged driers, I know had acidaway added along with suction and liquid driers. The driers were replaced an additional 3 times.

I know that. I've used it twice after burnouts. Once in a Fujitsu mini split, and a warranty Rheem HP comp. replacement.

The counter guy @ Johnstone recommended it.

referkid
12-20-2011, 12:02 AM
Ive used acid away on every burn out job haventhad a call back since on any.

tb5000
12-21-2011, 02:13 PM
See the following link for information about acid neutralizers from a bench chemist. http://refrigtech.com/Knowledge_Center/knowledge_acid.html

beau2cunningham
12-21-2011, 06:49 PM
Better yet if your unsure, being since you have a 38aks machine with semi hermetic recip,pump out and replace oil and while your at it install angle valve you'd be surprised what fresh oil alone in those compressors, will make them hum along for along time most guys never include regular oil changes and reed valve inspections good extra money for p.m.'s

jimj
12-21-2011, 07:13 PM
See the following link for information about acid neutralizers from a bench chemist. http://refrigtech.com/Knowledge_Center/knowledge_acid.html

Acid Away is the ONLY additive that Trane allows, it recommends it in a burnout!

mikep
12-21-2011, 07:24 PM
See the following link for information about acid neutralizers from a bench chemist. http://refrigtech.com/Knowledge_Center/knowledge_acid.html

The voice of sanity..."Find and fix the problem" don't chase it down with someones brew.

billygoat22
12-21-2011, 11:35 PM
I test for acid when finding a bad comp- then put in the dryers, suction f/d and acid away.

Some of the lit I've read said most of the acid is in the compressor anyway.

Another article on contaminated systems recommended removing txvs or other small passage parts and clean, reinstall. If its that bad, buy a new system.

Haven't had any issues yet, either. If acid away produces water, the f/d can catch it, unless they make an acid neutralizing f/d. Otherwise, where's the acid going to go?

tb5000
12-22-2011, 10:56 AM
The acid is absorbed in the suction drier and the acid neutralizer only clogs the drier. Also is the Trane factory recommending using the acid away.

targetman
12-22-2011, 05:19 PM
There is no substition for filter driers. Says Sporlan.
No such thing as a Mechanic in a can. Says the Oldman.
Acid a way is a joke.