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Does a furnace condensate drain need a trap?

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Does a furnace condensate drain need a 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.

Does AC drain need AP trap?

A P-Trap serves a very important purpose on an A/C unit. See, when moist air hits something cold, the water condenses out of the air and collects on the cold surface. Air Conditioning units pull A LOT of water out of the air. That is why in the summer, your car drips water.

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.

Does condensate line need a vent?

It’s not required to vent this trap like you would plumbing fixture waste line traps … since there shouldn’t be the risk of sewer gas backing up through the lines, and there generally isn’t enough flow/pressure to suck the condensate trap dry.

What is a condensate trap for?

A properly functioning (and properly designed) condensate trap provides for discharge of water from the cooling coil drain pan, while the water seal (the water level maintained in the trap) prevents the flow of ambient air into or out of the air handler.

How do I connect condensate pipe to waste pipe?

  1. Step 1 – Turn the Boiler Off. Firstly, you will want to turn the boiler off.
  2. Step 2 – Locate the Waste Pipe You Want to Tap Into. Next up, you will want to locate the waste pipe that you want to tap into.
  3. Step 3 – Cut into Waste Pipe.
  4. Step 4 – Attach Condensate Pipe Clamp.
  5. Step 5 – Attach Condensate Pipe to Clamp.

Does a condensate trap need a vent?

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.

Can you drain condensate 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.