Air Handler P Trap Design

As already mentioned a trap must seal against air leakage all year.

Air handler p trap design.

The same thing applies to our air conditioner but in our case the purpose of the p trap is to prevent outside air from being drawn through the a c unit. In this case yes the vent should be after the trap not before. This one tells why a p trap is necessary on the air conditioner evaporator. The pull of the water to the drain has to exceed the sucking of the supply fan negative pressure rule of thumb add 2 5 to the static pressure before the fan return and internal to the unit and that s the long end closer to the drain of the unit.

Hvac p trap design maintenance. I want to build a p. Because the coil is under positive pressure when the system is running air would rush right out of the condensate lines. If it were before the trap it would render the trap useless if not capped.

P trap design is this right. General one primary function of the air conditioning system is to dehumidify the air by removing water as it passes through the air handler. P trap design do you know the proper way to size a p trap on an hvac unit. The p trap traps condensate water so that air cannot pass through.

Air conditioning and cooling systems help with p trap design and small leak lennox cb 29m hey everyone my condensation line is plugging up about every 6 12 months or so. Collected in a drain pan below the cooling coil as illustrated in figure 1 the water must be removed to prevent damage and contamination to the air handler. I think the link above is showing an air handler in which case the blower is after the coil subjecting the drain line to a negative pressure. The p trap helps prevent this.

How the p trap design works a p trap gets its name because it combines two 90 degree joints with a horizontal overflow pipe and gives the entire unit the shape of the letter p. The standard design for a p trap as shown in figure 2 does not fully take into consideration the evaporation of water from the trap over time.