Horizontal Air Flow
Air is supplied into the work chamber through a fully adjustable boxed duct (louvered openings are factory preset) located on the side and along the length of the work chamber. After the heated air passes through the product and the work chamber, it is collected in a similar duct located on the opposite wall of the work chamber (see drawing). The air is then returned to the heat and recirculation plenum where it is reheated, and reintroduced into the work chamber. This type of airflow is usually ideal where there are multiple horizontal tiers of product and/or trays, loaded such that air cannot easily pass vertically through the product and/or trays.