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VXD Specification TYPICAL SPECIFICATIONS Model: VXD Description: Fan shall be a SlZlun aluminum and G90 Galvanized, roof or wall mounted,direct drive,upblast centrifugal exhaust ventilator.Fans up to and including models with a 24"nominal wheel and a 2 HP motor are suitable farwall mounting. Application: Centrifugal roof exhausters are engineered to discharge grease laden vapors,fumes and other contaminants vertically away from the building. i All models shall be ETL Listed and comply with UL705(electrical)Standards and CSA Std C22.2, No 113. Models 12 Certifications: thru 85 are ETL Listed and comply with UL762 Standards.Fan shall bear the AMCA certified ratings seal for sound and air Perbrmai ice. Construction: Housing The fan windband shaft be constru d of heavy gauge aluminum or G90 Galvanized and shall be spun on an automatic lathe to provide consistent dimensiens.Ho izontal and vertical intemai supports shall be used to securely fasten the windband to the discharge apron to provide rigidity for hinging and added strength to reduce shipping damage.The di schar added strength. ge apron shaft have a rolled bead for Base The base shall be constructed of galvanized steel for improved rigidity. Base corners shall be welded to provide strength and support for hinging and cleaning andto prevent leakage into the building. Wheel The fan wheel shall be centrifugal backward inclined and non-overloading.Wheels shall be balanced in two planes and done in accordance with AMGA standard 294-96,Balance Quality and Vlbra5on Levels for Fans.The wheel blades shall be aerodynamically designed to minimize turbulence,in1crease efficiency and reduce noise.The wheel blades shall be welded to the wheel inlet cone. In the eventthat balancing weights are)required they shall be riveted to the blades or wheel.The!wheel iniet shall overlap the fan base inlet for maximum performance and efficiency.The wheel shall be firmly attached to the motor shaft with two setscrews. Motor&Motor Compartment Standard 115 volt,open drip motors shall be permanently lubricated,rated for continuous duty and thermally protected.Motors shall be mounted outof the airstream and fu nished at the specified voltage,phase and enclosure.Motor mounting plate shall be constructed of heavy gauge galvanized steel.The otorcompartmentshall be cooled by outside air drawn through an extruded aluminum conduit tube.To seal the conduittube pass a and prevent noise silicone rubber grommets shad isolate the conduit tube from the fan housing. The motor compartment shall be of i two-piece construction with the cap having quick release clips to provide quick and easy access to the motor compartment Grease Spout A grease spoutmade of aluminum tibing shall be welded to the fan housing.The weld shall be factory tested to ensure itwill not leak. Nylon Washers To provide a tight seal ail fasteners i the fan housing shalt be backed with nylon washers. Product:Fan shall be model VXD as manufactured by Ventilation Direct_