Return Air Filter For Roof Top

Never run the unit without the return air filter in place.

Return air filter for roof top. The small expense of replacing your air conditioner filters often and using the appropriate air filter grill helps reduce your energy costs and protects your larger investment in your ac unit. As an inexpensive and effective alternative to sealing ducts the code specifically allows air return by connecting rooms by permanent openings. This will plug the unit evaporator coil with dirt and may substantially weaken the performance of the unit over time. Just before the filter we have a damper on the return air stream.

13 75w x 25 75h 4 6 out of 5 stars 127 35 99 35. Roof top economizer hoods utilize these metal mesh pre filters as economizer screens to protect equipment. The primary function of the economizer filter is to remove large airborne contaminants and coolant mist from the air stream. Our return air filter grills feature a wide border for easier installation and have a hinged facade for easier opening.

Much better to catch it there than have it gunk up the return air ducts. I just wouldn t use really good filters. They sure catch a lot of hair and debris. 12 x 24 steel return air filter grille for 1 filter removable face door hvac duct cover flat stamped face white outer dimensions.

20 x 10 steel return air filter grille for 1 filter fixed hinged ceiling recommended hvac duct cover flat stamped face white outer dimensions. Not all heat wheel rtu s will have this feature some only use 100 fresh air intake and extract. For example hallways can be part of the return air path. I recommend filters at the return air vents especially if they are at floor level or the client has pets.

Building cavities used to convey return air located over a crawlspace or next to an unconditioned space would be required to be tested. This allows us to recirculate some of the return air into the fresh air and the quantity is varied using the dampers. Common outdoor applications include outside and make up air intake units and return air units or rtu.