Plenum Fans

Model APD is a commercial grade plenum fan combining performance and reliability into a lighter duty, economical design. The compact direct drive eliminates the cost, maintenance and complexity of traditional belt drive, plenum fans. When combined with a variable frequency drive (VFD), the fan unit allows air volumes to adjust to changing building requirements such as increased pressure from dirty filters. APDs are an excellent option as a stand-alone single fan or in parallel fan array applications. The APD has a formed and bolted galvanized steel frame with a welded and coated steel seven-bladed, backward-curved wheel.

• 1,000 to 18,000 cfm per fan
• Up to 10 in. wg

APM plenum fans provide high efficiency while maintaining a compact size. This is an excellent selection for retrofit and replacement applications and in variable air volume systems. It uses a bolt together framework that is either galvanized or coated. The APM has the same high efficiency / low sound 12-blade wheel as the APH plenum, but at a cost effective price for light and medium duty applications. APM units are available in belt and direct drive with basic accessory options.

• 1,000 to 41,000 cfm per fan
• Up to 8 in. wg

APH plenum fans come in belt and direct drive versions with an extensive accessory offering. A 12-blade, airfoil aluminum wheel achieves a quiet and efficient operation. This design saves energy and improves the overall sound quality by reducing low-frequency tones that are difficult to attenuate. Industrial applications are ideal for the APH because of its welded construction, coated framework and multiple configurations.

• 1,000 to 209,000 cfm per fan
• Up to 12.5 in. wg