Heat Pump Condensate Drain Trap

This drain pipe deposits the excess condensed water outside on the ground.

Heat pump condensate drain trap.

However the negative pressure or vacuum of my system requires that you cap off the stand pipe so that air cannot flow into the drain pan housing disrupting the gravity flow of the water. Traps don t need priming in a drain line but it would make sense to be sure that the pan slopes to the drain that the drain opening is not so covered with water that no air can enter the drain along with water or it may drain poorly as will any plumbing drain and also double check that your backup overflow drain or condensate pan switch is working lest you flood the building. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. While most manufacturers don t specify this on this gravity ductless drains it is something to look out for.

This is fine if your system pushes air into the a coil. Typical drain configuration utilizes a tee with a stand pipe so the drain is open above the trap. Because most a c condensate drain clogs occur right at the trap this is the quickest easiest lowest cost method to clean and clear an a c or heat pump condensate drain clog. The imc states that condensate drains should be trapped according to manufactures specs however wording was added in imc 307 2 4 1 that states that ductless systems must either have a check valve or a trap in the condensate line.

A c or heat pump condensate drains can become clogged leading to condensate leaks spillage or even bacterial hazards in a building.