1592953353000 1312632483000 term-46442 1616541403978 1312632539000 1616290302583 adlib fitz-online adlib-term-46442 aa8f63f6-9712-3015-a24a-535a365460d0 2 1 scope note Closed chambers used to distribute or collect warmed or cooled air in forced air heating or cooling systems. MEANS reference term-46441 adlib-term-46441 7407c986-6d6c-362a-814c-a830597f8619 plenum chamber V.PJ.AFU.ALO.AFU.ALO.ARI.BZY 1 code V.PJ.AFU.ALO.AFU.ALO.ARI.BZY 1 plenum chambers reference term-46447 adlib-term-46447 483f7450-551c-35b6-bce0-29e7c8505e11 <ventilation system components> plenum chambers term