No P Trap On Ac Drain

A p trap is nothing more than a properly shaped piece of pipe no moving parts just the proper shape so gravity does the work for us.

No p trap on ac drain.

The line between the ac coil and the pump is pretty much like any other so yes it needs a p trap and vent as shown. There is a major difference between using p traps on sanitary applications and condensate removal from an ac unit and that is. Installing a flush out tee in the drain line is beneficial for maintaining your p trap as covered in our section on mold and algae. The ac equipment is set on the slab floor or curb and it is the mechanical contractor s job to install a p trap.

Having your p trap and unit inspected and cleaned properly with a solution and technique administered by professionals is key to keeping your unit running smoothly. But the line after the pump is usually a rubber hose and it does not need a p trap in the same way that a gravity fed line does. Because dry air holds less heat energy humidity. Properly designed and maintained trapped systems can provide successful condensate drainage.

Problems with a central air conditioner s condensate drain. Water lots of it. Some coil manufacturers specify no trap on a positive pressure application which it appears yours is. See below for an image of a sink p trap which works the same way.

Drains on a negative pressure location must have a trap or the water will not drain. Air conditioning units are shipped from the factory to the job site without a condensate drain trap. If your equipment is in a conditioned space the air escaping from the vent won t be a great loss. Central air conditioners produce something other than cool comfort.

See water won t flow up hill so the 180 degree turn in the drain causes water to get trapped in the bottom of. Sometimes the installation instructions will call for an inverted u or p trap but no t vent. This video is part of the heating and cooling series of training videos made to a. However within the industry there is no definition of what constitutes proper or acceptable design.