Table of Contents
Where does condensate drain line go?
You’ll find a white PVC or copper pipe located near your outdoor unit—this is where the drain line ends. Near your indoor unit, you’ll find a vertical PVC pipe with a cap on it, which acts as the access point for the condensate drain.
What is a condensate drain on a furnace?
What Is A Condensate Drain? Moisture in the air condenses on the evaporator coil then drains by gravity or is pumped out of the air conditioner through a small PVC pipe called the condensate drain. A little clog in your condensate drain can create a huge problem!
How does condensate drain work?
How a condensate drain pan works is by collecting this water as it drips from your air conditioner’s evaporator coils. The condensate pan is attached below the evaporator coils. It must be correctly fitted to catch moisture without leaks. Moisture flows to the condensate drain line and out of your home.
How deep is a condensate trap?
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 a condensate drain 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.
Does a furnace need a condensate drain?
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 does a 90 furnace condensate?
The purpose of the second heat exchanger is to get more heat from the exhaust before it is vented. As a result, high-efficiency furnaces require condensate drains because their exhaust gases cool enough to allow the moisture in them to condense from steam into water droplets.
How do you unclog a condensate drain line?
How to Unclog Your AC Condensate Drain Line
- Turn off your air conditioner.
- Remove the cap from the pipe.
- Check to see if there is any debris stuck in the drain.
- Remove any visible debris and retest for proper drainage.
- Pour in Vinegar.
- Replace the drain cap.
- Remove the drain cap.
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.
Does every P-trap need a vent?
P-traps need vents 1 – They give the sewer gases a place to vent, so they do not build pressure inside your sewer lines. 2 – They prevent siphoning of the water out of the trap. A great example of siphoning is a toilet.