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Old 08-05-2012, 03:16 PM
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drying out the drier? AC question

well this definitely not hotrodding, .....

Can I dry out an ac drier by baking it at low temp in an oven.

I remember baking chemical reagents to remove the h2o in chemistry class.
We could remove nearly all traces of water this way.



Brian

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Old 08-05-2012, 07:29 PM
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The term " moisture " is overused in the AC world.
The dessicant in the system wont have actual H2O in it, at least not excess amounts like you are imagining.
If the system was left open for a long time( a few days - more) then there will be a lot of moisture in the system and will need a good deep vacuum.
If the reciever dryer is 3 years old or more, and your making a repair , it should be replaced.
the dessicant in the system is there to stop corrosive acids from developing over time as the freon circulates throu the torrent of operating conditions it must endure.Excessive heat-cold, dissimilar metals in the system,etc...all factors that create acids that harm the system.
If you think a reciever dryer is contaminated in some way, just replace it.
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Old 08-05-2012, 07:41 PM
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Also at the bottom of the dryer/accumulator is a screen. It's job it to trap any large chunks of whatever (maybe your old compressor). Baking a dryer would not be a good idea. Every dissonant bag I've ever seen is made of a petroleum based fabric. Extreme baking temps might harden or possibly shrink that bag. Go buy a new dryer.
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Old 08-05-2012, 07:48 PM
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Time to replace.
Thanks for the input.

Brian
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