Do I need a condensate trap?



All condensate drains go into a trap. The condensate trap is absolutely mandatory for a high-efficiency gas furnace. 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.

Why is a condensate trap necessary?

The manufacturer of AC components require a trap on the primary condensate line to keep air in the air handler and to prevent the intrusion of insects. A trap will provide convenience and is necessary on the drain to provide a liquid seal to enable proper drainage.

Does boiler condensate need a trap?

The boiler should never be operated without the condensate trap in place, as it prevents noxious combustion gases from travelling down the condensate pipe.

Does the secondary condensate drain need a trap?





Traps don’t work on secondary drains….they need a supply of water or they will evaporate and provide an air leak. Just have a secondary drain switch put on it and wired to cut off the unit when the primary gets plugged.

How much water comes out of a condensate pipe?

A typical hour-long operation of your boiler may produce around 2 or 3 litres of the condensate water waste. This waste generally gets released in 300ml increments, and is often the reason you might hear water travelling through your pipes during intervals.

Where can I drain my condensate line?

To drain and clean your condensate line, first locate the air conditioning system’s drip pan. The drip pan should be located underneath the air conditioner or HVAC unit’s air handling unit. Air handling units are generally found in attics, crawl spaces, basements or utility closets.

Where should a condensate trap be installed?

The Condensation Trap should be assembled in the correct orientation at the bottom of any vertical pipe run installed in any unheated area, such as a cold loft space.

Where should boiler condensate pipe drain to?





Where should a boiler condensate pipe go? The HHIC states that: ‘When 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, internal kitchen or bathroom waste pipe such as sink, basin, bath or shower waste.

Can boiler condensate go into sink waste pipe?

Yes, a condensate pipe can be routed into a waste pipe. This is best done after the trap on the waste pipe in case of blockages.

Why use P trap for condensate drain?

The primary purpose of the P-trap in a plumbing system is to form an isolation seal between that system and the sanitary sewer, thereby preventing sewer gases and other contaminants from entering the building. For this application, the operating conditions are such that the P-trap provides an effective seal.

Does an air conditioner drain need a trap?

There are some simple ways you can tell if the drain line in your house is being run and draining correctly. First, the coil that your primary drain line is running off of needs to be at a downward angle allowing the water from the coil to drip into the drain line. Every drain line also needs a “P-Trap”.

How deep should the 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.



Can you drain condensate into vent pipe?

Condensate drains shall not directly connect to any plumbing drain, waste or vent pipe. Con- densate drains shall not discharge into a plumbing fixture other than a floor sink, floor drain, trench drain, mop sink, hub drain, standpipe, util- ity sink or laundry sink.

Can condensate drain to ground?

That’s why we call it a gravity drain because as long as we have the necessary 1/8 inch of downward slope for every 12 inches of carry, gravity will do all the work and pull the condensate waste to the ground all by itself.

What is the small pipe on the side of house dripping water?

Why a Condensate Trap is Needed on an Air Conditioner! Up …

What is the purpose of a condensate trap on a boiler?

The job of a condensate trap is to safely collect and release the condensation produced by the boiler, preventing any vapours created during the combustion process from escaping with it. These components vary in design depending on the model of boiler you have, but they are all fairly simple.

How does a condensate trap work?


Quote from video: And even higher than this hole right here. So that's because this air is getting sucked in through this pipe right here if the trap is dry or if you don't have a condensate trap how the system works



Why use P-trap for condensate drain?

The primary purpose of the P-trap in a plumbing system is to form an isolation seal between that system and the sanitary sewer, thereby preventing sewer gases and other contaminants from entering the building. For this application, the operating conditions are such that the P-trap provides an effective seal.

What is a condensate running trap?

The trap is a depressed U-shape portion at the condensate pipe. It is purposely shaped to perform its functions. Due to its shape, the water automatically creates an air seal to prevent sewer gases from entering through the outlet pipe while at the same time stopping the vapors from escaping through the inlet pipe.

How deep should the 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.

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.