Gas Furnace Condensate Drain Line

This will kill any algae mold or mildew that has formed in the pipe.

Gas furnace condensate drain line.

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. Condensation from air conditioning coils contains bacteria that can form slime and clog the condensate pan drain tube. The condensate line is one of the most important components of your hvac system. Your condensate line also known as a condensate drain line or condensate drain does several jobs but none are more critical to the functionality of your appliance than draining excess moisture outside of your home.

The condensate trap is absolutely mandatory for a high efficiency gas furnace. When you see water puddling around the furnace with the a c running you have a clogged condensate drain tube. Since the drain taps into the exhaust system leaving it open to the air would allow for a potential exhaust flue gas leak in the living space which is a big no no. Additionally the inducer motor would suck air through the drain if it weren t trapped which could.

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. Just pour a cup of bleach in the drain line s access opening near the indoor air conditioning unit. Clear condensate line clogs. Route it to the floor drain and secure it with tubing straps.

Furnace condensate typically ranges between 3 0 and 5 0 but it can get stronger.