Document 6wEaZ0EvkdnzvxoqaOjzoL5Rd

Air System Equipment RMivSSfftt. Hirschman-Pohle Co., Inc. Since 1908 200 Lent Ave. . . . LeRoy, N. Y. Sales Representatives in Principal Cities Manufacturers of all types of Power and Gravity Roof Ventilators Minimum Overall Height (So Desirable for Modern One-Story School Buildings) Roof opening "A" Cowl height "C" wJO* 12* 15* 18* 20* 5H' 6* 7* 8* 24* 30* 36* 11* 12* 14* The Hirschman Type "CAF" Electric ventilator shown has been designed in response to the demand for the ABSOLUTE MINIMUM IN OVERALL HEIGHT ABOVE THE ROOF LINE, and as standard construction uses our INSULATED DOUBLE SHELL STEEL CURB of any of the several types for any kind of roof deck. Fan and motor assembly available for a wide range of capacities at the lower static pres sures. The companion Type "CA" gravity or pressure relief ventilator (not shown) uses the same general construction minus the fan and motor. Either type subject to numerous modifications to meet the needs of any building project. Left: Type LAC This model features the damper housing as an integral part of the ventilator where the damper is accessible for clean ing. It shows the electric damper mounted in the motor chamber where it is also readily accessible because of the hinged cowl. Our Type "LAC" STATICK Power ventilator designed for efficient exhaust at either low or high static pressure, using non-overloading backward curved blade centrifugal fan, avauable in many sizes for almost any required capacity within reason. Note the damper housing above the top of the curb providing ready access to whatever type of damper is used. The Type "LC" STATICK Power ventilator (not shown! uses a similar construction minus the damper housing. As this page goes to press new test data covering the Type "LAC" STATICK Power ventilator has been submitted to AMCA for approved use of the Certified. Rating label as permitted to its members. See Sweet's Architectural, Engineering, or Industrial Construction Files. Complete data on any or all types gladly furnished on request. 240 Air System Equipment Muckle Manufacturing Co. 666 Belford Road Owatonna, Minn. Sales Engineering Representatives in Principal Cities MUCKLE VENTS--are excellent for moisture laden applications or corrosive conditions. Motor is located out of the air stream, and housing is hot dipped galvanized after fabrication for lasting protection. Capacities 254 to 10280 cfm. Units very efficient at low static pres sures. Constructed from heavy gage steel, electrically welded. MUCKLE LO-SIL--designed for low sil houette appearance. Largest unit only 25}$ in. high. Capacities from 225 to 17,600 cfm. Automatic back draft damp ers built in on all models. Vibration separators are provided to eliminate vibration and hum. Totally enclosed, ball bearing motors are directly con nected to propeller. MUCKLE BC VENT--Centrifugal back ward curved wheel is fine for operation where static pressures are encountered. Non-overloading, dynamically balanced wheel, directly connected to totally en closed motor. No maintenance of belts, pulleys, or bearings. Motor is out of air stream for protection. Capacities from 280 to 7650 cfm. Heavy gage construc tion. MUCKLE BELTED VENT--offers over 100 different capacities for any specific requirement. High exhaust capacity uti lizes low fan tip speed to make unit very quiet in operation. Low in height, com pact and symmetrical design, blends well with modem architecture. Heavy duty, ball bearing motors and non-overloading baekwardly curved wheels used on all units.' MANUFACTURERS of POWER ROOF VENTILATORS FOR OVER 15 YEARS COMPLETE DATA FURNISHED UPON REQUEST. 241