Condensate Drain Trap!
Condensate Drain Trap!
(OP)
Ok....we recently installed an air handling unit (14,000 cfm, approx 6.5" total static, 3.5" at the trap, draw through unit).
The issue is the unit is squeezed in a basement, and couldnt be provided with a baserail. as such, we only have a 4" housekeeping pad. Obviously this wont allow for the proper trap height - depending who you ask it should be either 4.5" or 6.5". Anyway, is there such a thing as a condensate pump for a large air handling unit?? I've seen them for fan coils, but dont know if they exist for large AHUs. Any ideas?
The issue is the unit is squeezed in a basement, and couldnt be provided with a baserail. as such, we only have a 4" housekeeping pad. Obviously this wont allow for the proper trap height - depending who you ask it should be either 4.5" or 6.5". Anyway, is there such a thing as a condensate pump for a large air handling unit?? I've seen them for fan coils, but dont know if they exist for large AHUs. Any ideas?





RE: Condensate Drain Trap!
RE: Condensate Drain Trap!
RE: Condensate Drain Trap!
quark kind of touches on my real opinion, though. I'm not sure it's really that important. Condensate drains typically drain with an air gap to a floor drain, and are not directly connected to pipe. That removes some of the necessity for a trap (no sewer gas). It is actually more important to have the vent. It is also a good practice to place a stainless steel drain pan around the unit with its own drain to condensate as well. Backups happen regardless (probably more often with the trap!), and a drain pan creates a berm that offers additional insurance against condensate floods.
You can always fabricate whatever trap dimensions you want, or even roll the elbows to give the same effect within your available clearances. Depending on the length of run to your floor drain, you may not need one at all.
RE: Condensate Drain Trap!
The device looked like snorkle with the cage and ball.
The demonstration showed it draining against a sump against ~5" of static w/about 2" of drop. The sump also had a 4" standard drain that was sucked out by the pressure.
The reason I'm spending so much time describing it is that I can't remember the name and I was hoping this would jog my memory... anyone else see it at the show?
You could probably search the AHR presentors database. I'll probably check as well.
RE: Condensate Drain Trap!
http://www.drainplus.com/
RE: Condensate Drain Trap!
RE: Condensate Drain Trap!
RE: Condensate Drain Trap!
If you are still looking for a condensate removal pump, Little Giant makes some nice low profile units.
http://
RE: Condensate Drain Trap!
Then the line runs parallel to the unit out of the building.
These pumps might be our only answer. My question with the pumps is do they have a large enough pumping capacity to remove condensate from a 14,000 cfm AHU? I always thought the Little Giants were more of a FCU type of pump.
RE: Condensate Drain Trap!
I'm not saying it will work in your situation, but it looks like it might.
RE: Condensate Drain Trap!
If they dont have this thing for higher static applications, they should start designing now!
RE: Condensate Drain Trap!