Gas Furnace Condensate Drain Line

The growth can clog the drip pan or even rinse into the condensate drain lines causing a clog in the piping.

Gas furnace condensate drain line.

If the condensate drain line is clogged you will need to use a wet dry vacuum or a special pump to unclog the line. Condensation from air conditioning coils contains bacteria that can form slime and clog the condensate pan drain tube. In a youtube interview with hvac trainer bruce marshall of emerson swan mike bernasconi says he has measured condensate as low as 1 8 or 2 0 in part because of the effect of chemicals added to the fuel gas by utilities see. When you see water puddling around the furnace with the a c running you have a clogged condensate drain tube.

Route it to the floor drain and secure it with tubing straps. The condensate trap is absolutely mandatory for a high efficiency gas furnace. Additionally the inducer motor would suck air through the drain if it weren t trapped which could. This will kill any algae mold or mildew that has formed in the pipe.

Clear condensate line clogs. Furnace condensate typically ranges between 3 0 and 5 0 but it can get stronger. Just pour a cup of bleach in the drain line s access opening near the indoor air conditioning unit. 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.

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.