Which way should condensation pipe flow for Trane XV90

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Old 10-03-17, 04:07 PM
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Which way should condensation pipe flow for Trane XV90

Did a remodel job and had to sever the 2" condensation exhaust pipe. Should the pipe be angled down from the furnace or back into it. Currently inside, it rises up a couple feet and then 90's across 6' and out of the house. Where it comes out of the house is where I need to be sure I have it sloped correctly since nothing inside has changed.
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Old 10-07-17, 07:02 PM
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it should slope towards the furnace, the condensate drains into the furnace and out the drain.

if you do it the other way you can get condensate freezing and blocking the exhaust. dripping on ground too, freezing and that's a hazard.
 
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