Guide Specs

SERIES 11 PLUG FAN SK-880-11 NOVEMBER, 1997

The Plug Fan shall be manufactured by Hartzell Fan, Inc.®, Series 11, ARRG. 9 or 4, Class I, II, or III. Wheels available are the backward curved (BC, 12" - 60") or the airfoil (BA, 18" - 60"). Rotation, as determined by the drive side of the plug fan, shall be clockwise or counter-clockwise. The fan shall be packaged, completely assembled and ready to install.

The fan structure shall be a heavy gauge commercial quality carbon steel suitable for temperatures up to 300° F., and with modifications up to 800° F. The wheels shall be continuously welded in compliance with AWS D1.1 standard. The wheels shall be commercial quality carbon steel with single thickness or double thickness airfoil blades and have non-overloading horsepower characteristics. The wheel shall be mounted to the fan shaft with a split taper bushing. An inlet cone shall be provided to ensure smooth airflow into the wheel. The shafts shall be ground and polished. The fan bearings shall be heavy duty, self-aligning ball or roller type (depending on fan sized, motor HP, and performance) and relubricable for continuous service. They shall have a minimum L10 life of 50,000 hours in horizontal position. The belts shall be an oil, heat, and static resistant type oversized for continuous duty.

The plug, when required, shall be filled with 4" of fiberglass insulation and shall have shaft seals to minimize passage of high temperature air to the ambient.

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. The fan performance shall be based on tests conducted in Hartzell's AMCA accredited laboratory and conducted in accordance with the latest revision of AMCA Standard 210 for air performance and AMCA Standard 300 for sound.