Guide Specs

SERIES 58E FIBERGLASS BELT DRIVE HOODED ROOF VENTILATOR, EXHAUST SK-880-58E NOVEMBER, 1997

The Fiberglass Belt Drive Hooded Roof Ventilator, Exhaust shall be manufactured by Hartzell Fan, Inc.®, Series 58E. Standard sizes are 12" through 60". The hood shall be complete with mounting panel, shipped separately sizes 24" to 60". The fan shall be pre-mounted to the curb base up to and including the 48". The 54" and 60" curb bases shall be shipped separately. The 12" to 18" shall be completely assembled, packaged and ready to install.

The resin used on the Series 58E is Ashland Hetron 693 which is a polyester resin with 3% antimony oxide added to achieve a Class I flame spread rate below 25 per ASTM E84 tunnel test standard and NFPA Code 91. The propeller shall be an aluminum insert molded into the hub for secure attachment to the shaft. The 54" to 60" shall be composed of either 4 or 6 blades securely clamped in a 2-piece hub. The hub shall be assembled with Type 304 stainless bolts and mounted on the fan shaft with tapered bushing. Propellers shall be given two coats of resin before final assembly. Fiberglass fan housings and components may be used in temperatures up to 200° F.

Fan housings, curb bases, and hoods shall be constructed of solid fiberglass including the flanges which have drilled mounting holes. Motor mountings shall be steel plate coated with resin and mounted on the drum exterior with glass mat, cloth and resin. All surfaces of the housing shall have one coat of heavy resin applied. Construction shall conform to ASTM Standard D4167 for fiber reinforced plastic fans and blowers. The encapsulated assembly base, zinc plated steel riser bolts and epoxy coated motor base provide support for the motor, out of the air stream. Motors shall be open end protected. All other hardware shall be Type 304 stainless steel.

Fan shafts shall be ground and polished Type 304 stainless steel. Bearings shall be located in a drive compartment sealed to prevent corrosive element entry which shall include a shaft seal and slinger. Bearings shall be heavy duty, self-aligning. Bearings shall have extended lube tubes and be relubricable for continuous service. Variable pitch sheaves shall be standard on fans up through 10 HP and belts shall be heat, oil, and static resistant and sized for continuous service. Fans shall be designed for mounting in vertical position.

The fan assembly shall be dynamically balanced at the Hartzell factory prior to shipping. Fans shall be balanced in accordance with AMCA Standard 204-96, fan application category BV-3 (comparable to Grade G6.3). Fans shall be manufactured in accordance with Hartzell's standard quality assurance procedures. Fan performance shall be based on tests conducted in Hartzell's AMCA certified test laboratory in accordance with AMCA Standard 210 for air performance and AMCA Standard 300 for sound.