Condensate comes from evaporator coil.
Ac drain line trap.
This presents a problem for the condensation drain since the air conditioner is at a negative pressure relative to the outside air.
This video i explain why ac systems need drain traps when evap coil is on the negative side of system meaning before blower motor.
The secondary drain line needs to be pointing downward toward the drain pan but other than that it is properly installed.
Anytime your drain goes up and down more than once you have a double trap unless you place an air vent between the two traps that vents above the drain inlet.
A p trap is needed to block air and allow condensate to drain properly.
If fan is located before the coil in the system the fan will push small amount of air and water down condensate drain.
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A central air system routes condensation through a u shaped trap located in the drain line just outside the air handler.
I have a forced air furnace air handler in my basement with a standard a c unit condenser out side a c coil in the main supply truck about a couple inches over the furnace air handler.
This one tells why a p trap is necessary on the air conditioner evaporator.
Double traps are no good.
View may 26 2016.
The condensate line comes out of the main trunk and runs to the floor just above the drain near the furnace.
Do i need an airgap or will the.
It sounds like this should be run before the p trap in the bathroom drain correct.
It s similar to the trap under your kitchen or bathroom sink.
If fan is located upstream of coil fan will pull water up drain line counter to water flowing down drain.
Been looking at some posts around here and notice a lot of mention of p traps for a c condensate lines.
I will also run a p trap in the condensate line before it gets to the drain.
A p trap is a pipe that is shaped to allow condensed water to properly drain off the hvac nancho.
Or lack of a p trap and air vent in the drain line which prevent water backup.
I want to reroute my ac condensate line to the drain in an adjacent bathroom.
This video is part of the heating and cooling series of training videos made to a.
Ok here is some detail.