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What is the proper way to run a condensate drain with a trap Does it need a vent?
Wiki User
∙ 13y ago
The condensate drain on the a-coil should have a trap and the trap should be vented for proper operation . The vent should rise above the top edge of the drain pan in the unit. Their should be a capped clean out before the vent.
Wiki User
∙ 13y ago
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Why do you need to have esp to calculate the u trap size for condensate drain in ahu?
Because the weight of the water in the trap must be greater than the esp or the trap will be ineffective,and the trap size dictates how much water it can hold thus determining the weight.
Do you need a trap on a bathtub?
YES, you do need a trap. Usually the bathtub drain is on the same sewer line as the nearby toilet.The smell from the toilet's discharge will sneak up through the bathtub's drain line without a trap ... not pleasant!.
What is the difference of a gully trap drain from a floor drain?
The difference between a gully trap drain and a floor drain is placement. A floor drain is in a floor, a gully trap drain goes on an external wall.
How can you tell if you have a trap in a drain line?
If you have a floor drain, there is a trap on the bottom of that. The main line shouldn't have a trap in it. There does not need to be one on the main because each fixture should have one and that's just another place for a clog to form.
Does a dishwasher need a p-trap?
Normally you will install a dishwasher drain pipe above your kitchen sink drain, so you are using the sinks P-Trap. When installed in this fashion, no you don't require a seperate. If you want to install your drain elsewhere, than yes you need a trap otherwise you will have sewer gases backing up through your dishwasher and into your kitfchen
Why is central air unit sucking the water from the a- coil down and dripping on the motor It shorted out your breakers and you replaced them The water drain is clear What is causing this hard vacuum?
The condensate drain on the a-coil should have a trap and the trap should be vented for proper operation .
Dose a positive pressure drain need a trap?
A trap on a positive drain is used to avoid the 'contaminated' air in a HVAC system from traveling through the condensate line and entering into areas where it is unwanted. The trap becomes necessary when one condensate line is used for multiple units, especially if it is tied to other negative pressure drain traps. The negative pressure drain traps may not drain properly if they have to overcome the positive non- trapped pressure of another unit. It allows the condensate to drain more evenly, as well. Without a trap, the positive pressure from the unit can blow air through the drain with the water and cause 'spitting.' A trap on a positive pressure system may not always be necessary, but it is good practice to trap every drain and trap it properly. There are guidelines for both positive and negative pressure traps. Always follow the manufacturers recommendations.
Why do you need to have esp to calculate the u trap size for condensate drain in ahu?
Because the weight of the water in the trap must be greater than the esp or the trap will be ineffective,and the trap size dictates how much water it can hold thus determining the weight.
Do you need a trap on a bathtub?
YES, you do need a trap. Usually the bathtub drain is on the same sewer line as the nearby toilet.The smell from the toilet's discharge will sneak up through the bathtub's drain line without a trap ... not pleasant!.
What is the difference of a gully trap drain from a floor drain?
The difference between a gully trap drain and a floor drain is placement. A floor drain is in a floor, a gully trap drain goes on an external wall.
Can you joint a PVC trap to a metal drain pipe?
Yes, if they are the proper size to mate, or match up. yes
How can you tell if you have a trap in a drain line?
If you have a floor drain, there is a trap on the bottom of that. The main line shouldn't have a trap in it. There does not need to be one on the main because each fixture should have one and that's just another place for a clog to form.
Does a dishwasher need a p-trap?
Normally you will install a dishwasher drain pipe above your kitchen sink drain, so you are using the sinks P-Trap. When installed in this fashion, no you don't require a seperate. If you want to install your drain elsewhere, than yes you need a trap otherwise you will have sewer gases backing up through your dishwasher and into your kitfchen
Can you use the existing shower drain for a pedestal sink and do you need a trap for the sink since there is already a trap in the floor?
No and yes. Amendment (not from a professional plumber!): If you were simply running the sink drain into the shower drain and if there was not a reduction in pipe size, I would think you would be able to do that. I think the reason you need a trap for the sink has to do with code that requires a trap be no more than 24" from the basin to the trap arm. That being said, the pedestal sink in my house does not have a trap until after it drains below the floor.
If the vent is below the drain is this an s trap if the drain turns up before the fixture with space between trap?
An S trap would go through the floor. A P trap goes through the wall. As long as the drain is below the bottom of the sink, it should drain. Distance between the bottom of the sink, the trap and the drain does not matter, it just changes how much water stay in the drain. Normally it is just in the trap, but it can be above the trap if circumstances cause the trap to be lower than usual.
Why do you need to flush a floor drain periodically?
Floor drain trap can dry out leaving no seal, allowing sewer gases to escape.
Does a new floor drain in a residential concrete basement floor in a former dirt crawl space need a vent?
A 3" or greater sized floor drain with p-trap doesn't need a vent providing,the fixture drain or(the pipe leading horisontally to the p-trap)is, as or longer,than 18".A p-trap lesser than 3" must be vented.
