Document Yrq54zRaOMdd92vdxOrGzqXVy

Ventilators, Roof W. F. Hirschman Co., Inc. Main Office: BUFFALO, N. Y. Works: Le ROY, N. Y. New York, N. Y., 202 East 44th St. Boston, Mass.. 143 Federal St. MANUFACTURERS ROOF VENTILATORS AND ELECTRIC CONTROLS Principle of Operation of Wind-Electric Ventilator Full Automatic--When the wind is blowing sufficiently to remove the desired amount of air from the building being ventilated, the electric motor is still. Instantly, when the wind turbine moves below a previously-determined number-ofrevolutions, the electric motor starts automatically and carries the load. The entire apparatus is noiseless. Special Advantages--Besides the regular auto matic operation the motor may also be so connected as to give a maximum exhaust capacity (running full speed) by manual control. The Effico Wind-Electric Ventilator, Full Automatic--Recommended for those installations which require a definite minimum exhaust at all times or which may requite an unusually heavy exhaust at intermittent periods. This apparatus b adjustable to exhaust various quantities of air within tie limits of given sixes ami b regularly supplied at capacities of 5 miles per hour wind and 10 deg. temperature difference rating. The Wind-Electric will exhaust minimum volume regardless of temperature difference or mind velocity. Other capacity can be supplied and the ventilator b adjustable to any constant capacity after installation. Note.--Details of Wind Driven (only) Ventilator are Identical with Exception of Motor Unit. DIMENSIONS AND CAPACITIES OF EFFICO WIND-ELECTRIC Hirschman Electric AND WIND DRIVEN VENTILATORS Damper and Motor Nominal Ventilator | Size in Inches A- Actual Size of WE Venti. lator C-Height of Blades D-Diam. of Storm Band E-Height of Band Cowl Cowl Dimensions in Inches (See Diagram) Thickness of Metal Cubic feet of air ex hausted per minute at 0-5 miles per hour Controls Manual, Thermostat wind velocity Cage Oz. G.f. Copper al Temperature differ- or Humidistat Remote Control X between air ir build- The Hirschman CO cb a CQ jj CQ o a 2 ing a nd outs de air Electric Control--Will o-i(r 10-20" 20-30 operate any type of 12 18 14 20 8 21V, 32 24 22 14 16 19 26 10 28Zi 32 24 22 16 18 1/30 "damper, round, square, 440 850 515 950 560 1040 rectangular, or multi 24 25 38 14 40 35 24 20 16 18 1600 1780 1900 blade in either vertical 30 3i 40 14 50 36 37 44 16 60 42 43 50 22 68 37 24 20 18 20 40 22 18 18 24 1.6 46 22 18 20 24 2300 2690 2900 or horizontal position, 3400 4500 3810 5010 4100 5500 will also control motor, 48 49 56 24 76 46 22 18 20 24 v. 5900 6700 7400 louvers, etc., in any part 54 ' 60 72 55 62 24 86 60 66 24 98 72 80 30 114 46 22 18 24 24. j'/j 50 22 18 24 24 50 20 16 24 24 7300 8450 9500 9300 10600 11900 13500 14600 16000 of the building. This control is abso 64 84 92 40 130 50 20 16 24 32 18000 21000 23000 lutely positive and holds % 96 116 45 153 50 20 16 24 32 ' 22500 27000 29000 the subject rigid in de sired position and also R dimension--5 in. on all sixes. makes it possible to so co C dimension should be above coping. ordinate that fan motor cannot be operated when dampers are closed. "Effico** Wind-Driven Roof Ventilators The Effico Ventilator consists of a wind- driven head to which suction blades are permanently connected (on the underside) making an efficient exhaust fan. * Rotation Effico Rotary Ball Bearing Ventilator Installation, Wind Driven (only) of the head creates an exhaust suction in The Effico Wind Electric Also Has the Same A rtistic lAnet and Pleasing Appearance. Lowest in Height ofRotary Ventilators by Over 60 per cent Average. the throat of the ventilator. moving parts. There are no 944 W. F. Hirschman Co., Inc. Ventilators, Roof F Fan Ventilator--Non-Automatic For our Effico Ventilator see preceding page Recommendation of F Electric Ventilator --Is a high class ventilator where a high exhaust velocity is required at certain periodical times or resistance (static pressure) is encountered. Where our Effico Rotary Head, or the Effico Wind- Electric Automatic Ventilator, due to obstructed location or its moderate, even capacity is not required, then we recommend the Hirschman F Ventilator. . ___ _ _ ____ There are no outside louvers to freeze or blow shut and remember--with the Hirsch man F Ventilator you still have a good ventilator when the motor is not running. Isolated F Fan Ventilator--Has motor en closure shell which entirely isolates the electric F Electric Ventilator Non-Aulomatic (Patented) motor from the heat, fumes, greases, etc., CAPACITIES OF HIRSCHMAN P VENTILATOR which are being exhausted, yet fully ventilates the motor Size of Stack Inches Fan Speed R.P.M. Capacities--C.F.M. Static Horse- Pressure in Inches of Water Power or Less '/. %* 'h' tT Motor O Quiet X Silent with cool outdoor air. The isolated electric ventilator is recommended for heat con ditions up to 1000 F. Also a sure cure for bad chimney 12 1750 1/20 725 400 1150 1/50 250 S.D. S.D. o X draft. Fan section may be installed in breeching near 1750 'h 1500 900 S.D. 0 18 1100 1/6 1500 900 520 200 S.D. X 650 1/20 820 S.T.D. X the boiler. Units supplied up to M in. static pressure. Write for information on 24 1100 V, 1700 1 3000 2200 1600 1000 S.D. 4800 4200 3800 3000 S.D. 0 825 2600 1500 920 S.T.D. our Lornate electric venti lator. They look just like a chimney. 30 1080 'h 5000 4000 2700 S.D. 900 6700 5600 4100 3100 S. 0 36 1080 2 8500 7600 6600 5400 S.D. 680 5000 3500 S.T.D. X 42 680 I'/t 8000 6250 4800 3500 S.D. 1080 2<A 10700 9700 8650 7700 S.D. 0 465 1 7700 4800 2600 S.T.D. X 48 365 1 10000 7000 S.T.D. X Dampers--Chain, pneu matic self-closing or electri cally operating; close fitting damper supplied with all sizes if required. All arranged to de-energize fan motor when damper is in closed position. Effico Circular Louver Damper--Installed in neck 54 365 Wt 14000 7800 60 440 2 16000 12000 S.T.D. S.T.D. X o of ventilator. It is the only circular multiple louver dam per manufactured giving full AD capacities based strictly on A.3.H.V.E. Code. Prefix letters in motor column indicate kind of current for which the motors are available Alternating--S, single phase, two or three phase, 60 cycle T, single phase, two or three phase, 25 cycle D. direct current. The low apeeds are suitable for schools, theatres, auditoriums and other quiet running requirements. exhaust area when open. Regularly supplied in Hirsch man Electric Ventilators. May be operated by Hirsch man Electric damper con trol or any other regular means. Hirschman Steel Ventilator and Skylight Curbs for Decks of Concrete, Wood, Steel and Gypsum Their light weight reduces roof load by many tons on concrete buildings; serves as re-enforcing frame; reduces cost of roof and also the cost of the ventilators. Supplies a form for opening and a solid and nicely , finished opening. Supplies real anchor for ventilator or skylight, and a lock for holding roofing felt or flashing. Open ; ___ Effico Multiple Circular Louver Damper ' in Heck of Ventilator (Patented) 945