Downturn plenums enable an inline make up air unit to provide down discharge air.
The downturn plenum is also insulated to reduce condensation build up and noise.
Features and Benefits
G90 Galvanized steel
Use Downturn Plenums when inline modular units need to provide
down discharge air. For example, all down discharge direct fired
and electric heaters with DX cooling use the downturn plenum. All
down discharge indirect heaters use downturn plenums.