How many feet should a condensate line have a support in place of the drain line is more than 20 feet?
How many feet should a condensate line have a support in place of the drain line is more than 20 feet?
When a drain line is PVC, the IMC dictates that it should be supported every 4′ when horizontal (while maintaining proper pitch) and every 10′ vertically. IMC 307.2.
Does a condensate drain need an air gap?
Condensate drains from air conditioner coils, condensing furnaces, and heat-recovery ventilators should not drain directly into a DWV pipe. An indirect drain using an air gap should be installed.
Can condensate drain to ground?
Both air conditioning condensate and refrigeration condensate are on the list of allowable discharges, provided that such water is distilled pure water taken from the atmosphere. However, any cleaning water or washwater can not be discharged to the ground, but must be captured for disposal in the sanitary sewer system.
Where should I run my condensate drain line?
Keep the Drain Lines Clear Locate the condensate drain access point outside your home or near the indoor air handler enclosure. You should see a small vertical vent extension as part of the piping. The vent is located above the point where the line exits your air handler.
What is the minimum slope allowed for 2 condensate waste lines?
1/8 inch per foot
1. 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.
Why do condensate drains have traps?
If fan is located upstream of coil, fan will pull water up drain line counter to water flowing down drain. A P-trap is needed to block air and allow condensate to drain properly.
Can condensate drain to sanitary?
Condensate from all cooling coils or evaporators shall be conveyed from the drain pan outlet to an approved place of disposal. Different municipalities may require condensate be disposed of to the sanitary sewer, while others may require disposal to building exterior or storm drainage piping.
How far should condensate line be from house?
The most popular areas we terminate condensate drain lines to is the side of the house and usually about six inches from the ground. And this can be in a planted area that is large enough to accept the amount of drainage, and soak down into the earth.
Can you put a condensate pipe into rainwater?
It is possible to terminate a condensate pipe into a rain water down pipe that terminates into the foul waste system. As with all externally-run condensate pipes, it is recommended to keep the external run to minimum and the pipe diameter to 32mm when exiting the property.
What is the standard slope of a condensate drain pipe?
Horizontal runs of condensate drain piping slope at least 1/8″ per foot in the direction of discharge. There is also a requirement for “uniform slope” and “uniform alignment”
Is condensate trap necessary for wall mounted drain pipe?
Condensate trap and raising of the drain pipe are not required for the wall-mounted type. For all drain pipes, make sure to have at least 1/100 or 1% gradient for smooth flow of water. For such a gradient, the drain pipe slope can be easily noticed with naked eyes.
How thick should a condensate pipe be?
Air conditioner condensate drain pipes must have at least 1/100 or 1% gradient. Most of the time, 3/8″ thick closed-cell insulations are sufficient but you may opt for 1/2″ thickness if the drain pipe is exposed to temperatures above 30°C.
What size trap discharge line do I need for my condensate?
1. Correctly sized trap discharge lines which slope in the direction of flow and are open-ended or vented at a receiver, will be non-flooded and allow flash steam to pass unhindered above the condensate (Figure 14.3.3). A minimum slope of 1 in 70 (150 mm drop every 10 m) is recommended.
