Ac Condensate Drain Line Diagram

Typically those 3 4 pipes are plumbed into a bathroom sink s drain that is on average 1 1 4 or 1 1 2 in diameter.

Ac condensate drain line diagram. Plumbing code citation for installation of air conditioning condensate drain piping. Condensate switches imc 307 2 3 states that all hvac equipment that produces condensate must have either a secondary drain line or a condensate overflow switch a secondary drain pan with a secondary drain line or condensate switch or some combination of these installations should be used to prevent overflow if the primary drain line blocks. Check for lint or crud blocking the opening to the condensate drain line inside the unit. That white line is the condensate drain headed from the wall mounted unit not shown to outdoors.

The secondary line is considered a backup line so that if the primary line gets clogged the condensate water will then go through the secondary line. Carson dunlop associates sketches left illustrate both acceptable and not recommended locations for the discharge of an air conditioner or heat pump condensate drain line discharge. One is the primary condensate line that is generally connected to a location like a tail piece of a bathroom sink drain piece. The secondary line usually a pvc pipe will often end.

General one primary function of the air conditioning system is to dehumidify the air by removing water as it passes through the air handler. At split system air conditioners heat pumps. Uniform mechanical code section 310 0 310 1 condensate disposal.