Guide Specs

SERIES 15IG G-DUTY DIRECT DRIVE HOODED ROOF VENTILATOR, INTAKE SK-880-15IG FEBRUARY, 2002

The Direct Drive Hooded Roof Ventilator, Intake, shall be manufactured by Hartzell Fan, Inc., Series 15I. Standard sizes are 18" through 48".

The hooded roof ventilator shall be a rugged, industrial design, consisting of a galvannealed steel base, galvannealed steel hood and a steel orifice panel and motor mount. The hood shall be designed to provide easy access to the fan and motor (one piece hood for sizes 18Ó to 36Ó and two piece hood for sizes 42Ó to 48Ó). The base shall be designed such that dampers can be easily installed without further modifications to the unit. The units shall have lifting lugs provided as standard equipment.

The fan portion of the unit shall consist of a steel orifice panel with a cast aluminum, airfoil type propeller. The propeller shall be mounted directly to a totally enclosed air over, foot mounted, "T" frame motor. The propeller shall be secured to the shaft by a split taper bushing or a clamp block.

The design shall provide for complete protection from the elements for supply airflow. The fan assembly shall be placed in the upper section of the ventilator base with the propeller on the downward side. The motor shall be located above the fan assembly and enclosed by the hood. The motor base shall be steel and shall be supported by tubular steel supports to provide rugged construction. The unit shall be a compact, low profile ventilator.

The galvannealed steel base shall be a minimum of 14 gauge material, and the hood shall be a minimum 18 gauge galvannealed steel.

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