Ac Condensate Drain Line Diagram

The secondary line usually a pvc pipe will often end.

Ac condensate drain line diagram.

In new homes city codes require drain lines from the air conditioner s condensate line which are often located in the attic to tie in or be plumbed to the home s plumbing system. Collected in a drain pan below the cooling coil as illustrated in figure 1 the water must be removed to prevent damage and contamination to the air handler system and building draining water from a condensate drain pan is not a simple process. At split system air conditioners heat pumps. 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.

Uniform mechanical code section 310 0 310 1 condensate disposal. The photo showing flexible air conditioner condensate piping is explained. That white line is the condensate drain headed from the wall mounted unit not shown to outdoors. 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.

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. General one primary function of the air conditioning system is to dehumidify the air by removing water as it passes through the air handler. Check for lint or crud blocking the opening to the condensate drain line inside the unit.