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Old 07-17-2013, 06:51 PM   #1
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Flaky debris at bottom of evaporator coil?


What is the debris at the bottom of this evaporator coil probably from?
Could it be pieces from the heat exchanger?

Thanks!
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Old 07-17-2013, 07:38 PM   #2
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Looks like it to me. Appears by the nature of the corrosion around the Copper, that it is pretty old, maybe 10 years or more.

There should be a plate on there with the manufacturer info. Otherwise, any manuals from the previous owner, for it, or any info on the outdoor unit, that would possibly disclose when this inverted A-Coil was installed (ie mfg model# or Serial#).

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Old 07-17-2013, 09:20 PM   #3
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normal corrosion of the galvanized metal the coil body is made of. nothing 2 worry about.
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Old 07-18-2013, 01:51 PM   #4
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Thanks for the replies.

Gregzoll, this unit is 9 years old. What would cause premature corrosion of the coils? How can one prevent further corrosion? Are there any compounds that you can apply to them for protection?

Yuri, are you saying that the debris might be from the fins instead of the heat exchanger?
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Old 07-18-2013, 01:54 PM   #5
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Also, this unit had a clogged drain line. I don't know if it was from sludge or some of this debris.
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Old 07-18-2013, 02:48 PM   #6
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Quote:
Originally Posted by 2tortoiseshells
Also, this unit had a clogged drain line. I don't know if it was from sludge or some of this debris.
Clogged drain lines are easy to fix. As for that corrosion, you are showing a fine example of what happens with two dissimular metals.

Why they did the invervte A-coil, or V-coil, this is not per chance an upflow or sideflow furnace, is it? Can you post a picture of the whole furnace unit.
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Old 07-18-2013, 03:17 PM   #7
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The furnace is an upflow Payne #PG9MAA060120. The air conditioner is Bryant #561CJ060-H.

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