Greenheck Fan - WD-400 Series

Below are all the different types of Greenheck Fan. Select the device of your choice, to download the manual

Contents

rS GREENHECK WD 400 SERIES Non Motorized Backdraft Damper Horizontal or Vertical Mount Intake Application and Design The WD 400 series are non motorized backdraft dampers which may be mounted either vertically for intake air or mounted horizontally to allow vertical airflow down and prevent reverse airflow The dampers are opened by air pressure differential and closed by springs Optional motor packs are not available Ratings See page 2 for specific limitations Pressure 2 0 in wg 498 Pa differential pressure Velocity 2500 fpm 13 m s Temperature 180 F 82 C Standard Construction Frame 18 ga 1 3mm galvanized steel Blades 0 025 in 0 64mm aluminum Axles 3 6 in 4 8mm dia zinc plated steel rod full length Beari ...