Series: Pro Training – Ductless Drain Safety Installation

Pro Training Blog Series

The United States market has come a long way on embracing ductless HVAC units. From 20 years ago when you would occasionally see a unit installed on a sunroom to present day when this technology is regularly used to combat discomfort in bonus rooms, additions, garages, and even whole home applications. Along the way code has had to change in order to adapt to the more widely used ductless technology. One of these areas of adaption is in the protection of a wall mounted indoor unit from condensation overflow. Unlike traditional installations where auxiliary drain pans are widely used, the standard wall mounted indoor unit only has the internal drain pan. This design leaves open the possibility of wall and/or flooring damage should the drain line become obstructed.

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