Drain line?

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Old 07-02-20, 11:42 AM
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Drain line?

On each mini split wall unit, is there a drain line that needs to go to a bathroom or waste drainage or does it go back to the main unit outside via the copper lines?
 
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Old 07-02-20, 01:19 PM
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It can go anywhere that the drainage doesn't do any damage. In some areas, it is not allowed to go into the sanitary sewer system.
 
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Old 07-02-20, 01:55 PM
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Is it just a small pipe or needs to be 1"+?
But each outlet/head has condensate or is it only the main unit/pump?
 
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Old 07-02-20, 02:04 PM
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Each indoor unit has its own condensate drain.
 
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Old 07-02-20, 02:05 PM
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Each head will need a drain. The manual should tell you the size.
 
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Old 07-02-20, 02:32 PM
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Are you allowed to run small condensate drain tubing in walls, say 15ft to under a sink cabinet?
are there any access blockage issues to consider?
 
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Old 07-03-20, 05:36 AM
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I suggest you check with your local code officials as to where you may or may not run & terminate condensate drains. These types of things often vary widely from area to area.
 
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Old 07-03-20, 06:06 AM
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Most condensate drains just follow the copper lines outside and drain to the ground outside.
In cold areas, the hose from the head unit drains into a 3/4" or 1" pvc pipe with an air-gap at top. This allows the pipe to drain out so it doesn't freeze over the winter.
 
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