Supply Air Grille Sizing Chart

You may order a horizontal grille blades run in the long direction or a vertical grille blades run in the short direction.

Supply air grille sizing chart.

Known cfm calculate fpm based on known cfm. Return a return draws air into a return duct system with negative pressure compared to the space usually via a fixed grille but. This is critical if the grille is on the wall. First let s define some terms.

Use the calculator below to quickly and easily determine the grille airflow. First calculate the percent of outside air compared to system airflow by dividing the outside air cfm by the total supply airflow. Supply grille sizing chart yoskin. Air flow calculator linear bar grilles.

Supply grille sizing chart yoskin. Supply air grille sizing chart. Grille length inches grille height inches please fill in either cfm cubic feet per minute value or fpm feet per minute value. Proper sizing and orientation of grilles registers and diffusers may seem like such a simple thing but it s an area where confusion and mistakes are commonly made.

Should the system have an outside air intake you must reduce the amount of required return air into each return grille and duct to provide for the outside air entering the return side of the fan. Grilles diffusers and a c accessories grilles diffusers and a c accessories ering piping and ductwork systems energy. Duct system sizes and airflow quick chart created date.