Special Features:

Standard construction: dimensions in metrics=l 640.08mm h 419.1mm d 469.9mm: spun aluminum housing; backward inclined centrifugal aluminum wheel; birdscreen; backdraft dampener; aluminum pre-punched curb cap with welded corners; oversized electrical conduit; pre-wired jucntion bo (single speed motors up to 5hp); regreasable cast pillow black ball bearings; neoprene vibration isolators; corosion resistant fasteners; ft(fatrap) option; high wind option; hs (heat & smoke0 option-ul smoke control (bd) 500 for 4 hours and 100 for 1 hour; intrnal wiring: 3r-nema 3r(weather proof)

Properties:

A nonpositive displacement mechanical device having a centrifugal fan impeller inclosed within a housing. It is designed to move air or gas over a wide range of volumes and pressures. The air or gas is drawn in axially and discharged radially or drawn in radially and discharged axially by centrifugal force through an outlet in the housing.