Condensate Drain Pipe Slope

This drain pipe slope calculator will calculate the slope and total drop fall of a drainage pipe over a specified length of pipe.

Condensate drain pipe slope. Using corrosion resistant material and sized no smaller than the drain connection on the appliance. 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. The following diagram lays out the different terms that are used in the calculator. 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.

Types sizes slope of condensate drain piping. A pipe that slopes too much drains water but not solids. Drain pipe slope calculator. The installation of condensate piping shall be as follows.

Imc 307 2 2 tells us that an a c condensate drain inside diameter should not be smaller than 3 4 and should not be smaller than the drain pan outlet diameter. Pipes must slope slightly downhill to drain properly. My a c units drain into a pvc pipe that is tied in to the house s plumbing. If piping support e g.

Pipe hangers is set too far apart the piping can deflect under its own weight. A pipe that doesn t slope enough won t drain. How to use the calculator. 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.

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. 3 4 is sufficient for up to 20 tons according to the imc unless the drain outlet size is larger than 3 4. The drain point must ensure that the condensate can reach the steam trap. Nowhere to put vacuum to suck out clog.

An accurate calculation is essential for properly functioning plumbing. 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. Set piping at a slope of no less than 1 in 100.