Condensate Drain Pipe Slope

My a c units drain into a pvc pipe that is tied in to the house s plumbing.

Condensate drain pipe slope.

The drain point must ensure that the condensate can reach the steam trap. This type of problem can cause condensate to pool at unwanted locations even if piping is set at a slight inclination so it is important to both. Drain pipe slope calculator. Pipe hangers is set too far apart the piping can deflect under its own weight.

Using corrosion resistant material and sized no smaller than the drain connection on the appliance. How to use the calculator. Types sizes slope of condensate drain piping. Set piping at a slope of no less than 1 in 100.

307 1 condensate drain piping must be corrosion resistant for condensate from fuel burning appliances. If piping support e g. The standard slope is anywhere from inch to 3 inches per foot. A pipe that doesn t slope enough won t drain.

The following diagram lays out the different terms that are used in the calculator. This slope will ensure that gravity as well as the flow of steam will assist in moving the condensate towards drain points where the condensate may be safely and effectively removed see figure 10 3 1. I traced the pipe through the attice and both units go into the large pvc pipe that goes down the wall and up out of the roof to the vent stack. This drain pipe slope calculator will calculate the slope and total drop fall of a drainage pipe over a specified length of pipe.

He was ignoring the plumbing code 1 8 per foot slope for condensate drain lines and apparently he didn t recognize the potential costs in rot insect damage or mold if we simply let the condensate drain clog due to an improper slope and dust that will enter the line followed by leaks into the building wall up at the air handler. Set piping support at appropriate intervals and. Pipes must slope slightly downhill to drain properly. An accurate calculation is essential for properly functioning plumbing.

Nowhere to put vacuum to suck out clog. Slope the drain shall have a slope of not less than 1 8 inch per foot and shall be approved corrosion resistant pipe not less in size than 3 4 of an inch for air cooling coils and not less than the drain outlet size for evaporative coolers or other equipment. The installation of condensate piping shall be as follows.