The six-bladed propeller with high efficiency design produces more CFM/WATT at lower RPM. These fans are constructed of heavy gauge, die formed galvanized steel and have deep spun orifice. Tubular bearing and motor supports are welded to the frame for a strong unitized construction. Square wall housing Angle Flow Design FAN PERFORMANCE-SERIES GCS FEATURES AND ACCESSORIES •Galvanized construction •Quiet operation at low RPM •Dust, dirt and moisture proof bearings •High efficiency, heavy duty, totally enclosed motors have a low operating cost; available in single phase or three phase •All aluminum gravity or motor operated dampers •Permanently lubricated fan shaft ball bearings •Optional automatic belt tightner - eliminates belt tension problems and one maintenance operation, not available on 1 1/2 & 2 HP fans •Two speed motors optional •Wall box completely assembled ready for installation and wiring • PVC coated guards DIMENSIONAL DATA SQUARE WALL HOUSING ANGLE WALL HOUSING SPECIAL ADDITIONAL FEATURES OF ANGLE FLOW •Angle flow shutter guard is mounted to shutter which eliminates another maintenance procedure •Choose fan performance at .05 due to increased air flow efficiency • Lowers heating cost with shutters on inside of fan (air entering and saves up to 4000 BTU per hour) DIMENSIONAL DATA GREENHOUSE ENVIRONMENTAL CONTROL SYSTEMS “Designed for the Professional"