Help me understand HRV drains
Can someone help me understand the design principle of the condensation drain on an HRV? My Zehnder unit has one drain, which I’m assuming is typical. A quick examination shows this drain is in the outgoing stream, so condensation in the outgoing stream will go down the drain. What is supposed to happen to condensation in the incoming stream? When it’s hotter and more humid outside, it seems like there is the potential for condensation here too, so what am I missing?
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