Heat Pump Hvac Condensate Drain Line Design

This drain deserves an f.

Heat pump hvac condensate drain line design.

The piping from the cooling coil to the condensate pump reservoir should be installed with minimum 1 8 inch slope to enable gravity flow. As indoor air circulates through the evaporator coil dust dirt and other airborne particles can be trapped by moisture. With no overflow safety switch no clean out and no vent one is just asking for several thousand dollars of damage due to condensate water backing up and overflowing the cooling coil drain pan flooding out this interior furnace closet. It connects directly to the hvac unit and leads outdoors often through an exterior wall.

If the condensate drain line is clogged you will need to use a wet dry vacuum or a special pump to unclog the line. Questions why it s not advisable to pump condensate into a sewer drain mar 16 2014 anonymous said. No trap clean out no vent. Enter the condensate line which essentially functions as a drain line.

Just pour a cup of bleach in the drain line s access opening near the indoor air conditioning unit. Over time it can become trapped in your condensate drain line causing blockage. 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. Build up of this debris can be carried off as condensate drains from the coil.

Little giant condensate pump. Its job is to efficiently funnel condensation away from your hvac unit. This is commonly seen in residential and commercial sites where no floor drains were provisioned to drain condensate. Signs the ac drain line is clogged.

Uniform mechanical code section 310 0 310 1 condensate disposal. Why would a condensate pump line into a drain be a problem when the pump has a check valve which allows no back leakage of gas or water and if the drain ever clogged it would back up either way anyhow. Condensate lines are typically made of plastic commonly pvc or sometimes metal although plastic is prefered. This will kill any algae mold or mildew that has formed in the pipe.

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. If you spot any of the tell tale signs of a condensate line or drip pan clog the average homeowner is more than capable of clearing simple clogs if confident. Clear condensate line clogs. The growth can clog the drip pan or even rinse into the condensate drain lines causing a clog in the piping.