Air Conditioning Condensate Drain

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Old 10-03-14, 08:32 AM
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Air Conditioning Condensate Drain

I have two air handlers in my attic, and they recently got clogged. Air conditioning company came and fixed it. They also recommended re-plumbing the drain lines. A/c techs pointed out that both air handlers are "tied in" to the same drain line, which goes to a bathroom sink where a water trap is.

The a/c techs recommended plumbing the new drain line straight to the vent stack so that if anything happens in the future, it can be easily diagnosable. However, I noticed this against the code as it says there must be an air gap or break for anything draining directly to a sewer(septic) vent stack.

A/c tech also said that p-trap is not necessary since the air handler is a "blow-through" type system. He said that the air handler blows air through the drain so there wouldn't be any sewage gases sucked into the a/c unit.

Should I replumb it to the vent stack or leave the a/c condensate drains where they are?

Thanks!
 
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Old 10-03-14, 08:35 AM
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Where they are doesn't sound like the most ideal setup but you can't tie them into the vent stack.
 
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Old 10-03-14, 08:41 AM
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I didn't think they should go to the vent stack. What would be the ideal way to plumb it? Same idea, but with separate drains for each unit?
 
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Old 10-03-14, 08:50 AM
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By not ideal I was referring to draining in the bathroom sink. Two drain lines would look even worse.
 
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Old 10-03-14, 09:05 AM
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So I should just leave the drains the way they are?

Where is the ideal drain location?
 
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