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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