Window A/C - not cooling


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Old 04-09-07, 08:43 AM
R
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Window A/C - not cooling

I know it is too much to get into but maybe someone can direct me to instructions somewhere.

I have a few window A/C units and right now I have one that is not cooling. The compressor is ok. I need to check/add freon probably to the unit but I do not know how to do this... I have seen other people do it but want to try and learn how I can. I know I need some qauges and bottle of freon but thats about it.

I looked at HomeDepot and Lowe's for a book on instructions but none there.
Can someone point to a site that would give me the how to's and do not's on adding freon to an window unit?

Thanks!
Ron
 
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Old 04-09-07, 08:45 AM
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Wink

You have to be EPA to work on or with the freon in the AC units. Some one can turn you in and it will cost you a $10,000 fine
 
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Old 04-09-07, 09:01 AM
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I guess the same thing applies to adding to your truck too.
Would be a rather expensive A/C unit huh?

OK, thanks for the info... not much choice but to pay the $$$ and get
someone to fix it for me. Thought maybe a could save a few $$ and learn something along the way.

Appreciate the info ...

Ron
 
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Old 04-09-07, 09:37 AM
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Ed I thought it was $100,000 now! and a reward of $10,000.
 
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Old 04-09-07, 09:53 AM
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Smile

Don't get any ideas, now.....
 
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Old 04-09-07, 02:39 PM
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No on your truck it should have R 134. That you can work with. But thats not the freon in the AC window unit.
 
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Old 04-11-07, 09:02 AM
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ronpepper if you really want to do this yourself go sign up at your local state college and take a few months of Airconditioning and Refrigeration (many have night courses) you can get the EPA refrigerant handling license and the knowledge you need to work on your own stuff. Note: make sure you have put aside boogoodles of bucks cause the proper equipment to do the work correctly is very expensive.
 
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Old 04-18-07, 12:46 PM
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Well, I bit the bullet and called a service man to come take a look at the A/C...... Might take a look to see if one of the trade schools offer a course in A/C repair. Probably should have done that a few years back. Would have been worth it by now and probably paid for itself...

Thanks for all the responses!
 
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Old 04-25-07, 07:08 PM
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Just finished up my first year of HVAC/R, wish I had done it years ago. Took my EPA test (universal) last night. You will need to pierce the high and low side lines, capture the refrigerant, sweat in some schrader valves, pressurize the system with nitrogen (don't forget the regulator) at low side max rated pressure, If you were low on refrigerant you have a leak to repair, put about 2PSI of nitrogen on the system while doing any brazing. Then pull a vacuum on the system with 500 microns and if pressure doesnt rise after 5 minutes then you should have a clean dry system.
Find the specs on what type refrigerant and how many ounces. You will need a scale to measure out the freon, and someone to supply you with refrigerant. Make sure evaporater and condensor are clean and check your subcooling and superheat on the system.
As stated in previous post equipment is going to be expensive. You also need an EPA license to work on small appliances regardless of what type of refrigerant is in the system. MVAC (Mobile) systems are another type of certification. Go back to school, you'll be glad you did.
 
 

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