How do I run my AC condensate drain line outside?

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Where do I route my AC condensate drain line?





The drain line access pipe is located near your indoor unit, which may be in your attic, crawl space, or garage, typically installed on top of the gas furnace in your home.

How do you plumb an AC drain line?

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Quote from Youtube video: So the degree will announce what a quarter every three feet. So a quarter inch every three feet on that. So exactly how it supposed to be run for your primary draining lines okay.

Is your AC drain line outside suppose to drip?

The condensate line should drain to the outdoors and during humid weather you should see plenty of water dripping from it. If it’s not dripping, it’s not draining! If there is standing water in the drain pan, your condensate drain is clogged! #3 Dripping from anywhere else is a problem.

Can you run condensate drain outside?

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. Open the plug on top to access the drain lines.

Does AC drain line need AP trap?





First, the coil that your primary drain line is running off of needs to be at a downward angle to allow the water from the coil to drip into the drain line. Every drain line also needs to have what is called a “P-Trap”.

How far from house should AC drain line?

The most experienced inspectors recommend that the a/c condensate be routed no less than 12 inches from the foundation wall to avoid long term implications.

Can you run a condensate pipe into a vent pipe?

The reason we don’t connect condensate discharge piping *directly* or hard-piped to a sewer or storm drain (nor directly into a plumbing system vent pipe) is risk of explosive or unsanitary sewer gases being drawn into the building’s HVAC system.

How should a condensate pipe be installed?

Where an installer is fitting a new or replacement boiler, the condensate discharge pipe should be connected to an internal “gravity discharge point” such as an internal soil stack (preferred method), internal kitchen or bathroom waste pipe such as sink, basin, bath or shower waste.

Why is my AC dripping so much water outside?



Poor airflow due to a dirty air filter or low refrigerant levels preventing heat absorption are common causes. When ice buildup on the coils melts, this could lead to an excess of water runoff to be flushed out through the condensate drain line, forming what appears to be an AC leak outside.

How much should AC drip outside?

When the summer season is in full swing and humidity is high, it’s normal for your air conditioner to drain anywhere between 5 and 20 gallons of water each day.

How do you extend a condensate drain line?

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Quote from Youtube video: And what you can do is just get a piece of PVC pipe. And run it over here thread it out wherever your water.

Does AC drain need a vent?



no vent. per se, is required on the condensate line itself, unlike sanitary drains, which must be vented to prevent siphonage at the traps and possible collaspe of the sewer pipe due to possible negative pressures created when no vent is present.

Can you drain AC condensate into sewer?

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Why is there a trap on AC drain?

WHAT ARE P-TRAPS? – Condensate drains typically have traps, which are designed to keep air from moving in or out of the air handler without preventing condensate drainage. The absence of a properly working p-trap could push unfiltered air into your home and cause an overflow of the condensate drain.

Can a condensate trap be too big?

If the trap outlet is too tall (Figure 1C), negative pressure will prevent drainage, causing the condensate to back up into the system resulting in property and equipment damage.

How deep should a condensate drain trap be?



If a unit were to be operating at minus 6 inches WC maximum negative plenum pressure then the trap height, per the guidelines shown in Figure 1a, requires 7 + 3½ + 1½ + 1 inches of height from under the floor or about 13 inches below the floor level.

Should the AC drain line be capped?

If the coil is on the negative side it will need a trap and needs to be capped. If you don’t cap the trap on the coil side. The primary line on the pan will suck air not allowing the water to drain while the system is running.