However some drop ceiling designs create a.
Return air plenum ceiling.
Maintaining a low pressure drop return air path from conditioned spaces to the air handler can be a challenge using architectural plenums when spaces are divided by figure 1 figure 2typical pressures.
Of thumb for sizing various return air transfer assem blies are shown in table 1.
Item 523684 model rab17rab17.
Hamilton 20 5 in x 17 5 in x 28 in return air box assembly duct plenum.
This is most common in commercial buildings schools hospitals or libraries.
Watch as a pro quickly assembles the return air plenum and shows you how to do the same.
A return air plenum is the ducting that is attached to a furnace for that return air to flow through and is used as a central manifold for other return air ducting.
The assembly is constructed of 26 gauge sheet metal and the knock down design makes it easy to handle and assemble in the field.
22 5 x 15 75 4 6 out of 5 stars 67 46 99 46.
The term plenum could be a large section of ductwork or the upper space above a ceiling.
20 x 14 steel return air filter grille for 1 filter fixed hinged ceiling recommended hvac duct cover flat stamped face white outer dimensions.
Your order will also include alpine s exclusive free instructional video on dvd.
The space providing air is called a supply plenum and the space providing air return is referred to as a return plenum.
Any large space designated for any type of air flow or routing of systems can be called a plenum.
A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems by providing pathways for either heated conditioned or return airflows usually at greater than atmospheric pressure.
Dropped ceilings or suspended ceilings are often installed so that the space between them and the floor above or the roof deck can be used as a return air plenum.