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Air System Equipment Fans and Blowers American Coolair Corporation Jacksonville, Florida Cooling and Ventilating Fan Systems For Homes, Offices, Stores, Factories, Etc. A Pioneer Manufacturer of Attic Fans for Home Cooling Charter Member--Propeller Fan Manufacturers Association COOLING BY AIR MOVEMENT Engineers and architects know well that people working or living within a building can be kept cool, healthfully and economically, by sufficient movement of fresh air. It is not so well known, perhaps, that such cooling requires four to eight times the volume of moving air needed for simple ventilation. Satisfactory cooling requires a com plete air change in working or living quarters at least once a minute. The American Coolair Corporation pioneered in the manufacture of attic fans for home cooling and during the past 12 years, Coolair engineers have been directly responsible for many of the develop ments in this field. In planning a Coolair installation, determine cubic content of space to be cooled or ventilated and select fan of ample capacity based on the table of Recommended Air Changes shown. Write for Coolair's FREE catalog containing detailed instal- lation suggestions for home and commercial jobs. ,,,,,,,,,, _ springs. ideal for attic, window ana wall installations in homes, Qflees, restaurants, 10,a' c' Coolair Type s. diameters 6 to 9 ft. capacities up to 160,000 cfm. Used in hotels, factories, auditoriums, etc. FEATURES OF COOLAIR FANS 1. New Built-In Springs--completely insulate moving parts from frame, eliminating vibration noise. Simplify window, wall and attic installations. 2. Light,. Com pact Fabricated Steel Frame--fits into many places where fans with bulky metal housings cannot be used. Easy to handle and install. 3. Reversible--when equipped with reversible motor, fan will blow in or exhaust at will. 4. Ball Bearings in Fan Hub-- Eliminate sleeve bearing chatter and end thrust knock. Permit operation in any position (specify ball bearing motor for vertical or angle discharge). Uses grease instead of oil, requiring attention only once a year (once each three years for residential service). 5. Eight' Large, Slowly-Moving Steel Blades--instead of four or lf5? usually found on cheaper fans. Up to 12 blades on Type S models. Low tip speeds for quiet performance, steady flow of air. 6. Efficient V-Belt Drive--and small motor for efficient operating speed. 7. Efficient Long Hour Service Motors--rubber mounted on adjustable support. Nation ally known make approved for this application. 8. Certified Air Ratings--in accordance with Standard Test Code of NA FM and ASHVE. 9. FiveYear Guarantee on Resi dence Fans (belts and motors 1 year). Coolair Type T, space-saving, efiicicnl twin unit widely used where headroom is limited. Shown with new built-in springs. U. S. Patent No. 2,108,788 900 American Coolair Corporation Air System Equipment Fans and Blowers Performance Data--Coolair Belt Drive Fans Fan Size 2-0 26' 234-0 32' 3-0 38' 334-0 44' 4-0 w 4*4-0 56' 5-0 62' Hp Fan rpm 3*L( KH M *4 M X *4 X X *4 1 134 34 X 1 54 t *4 04 2 X 1* 134 2 3 448 535 595 395 432 495 567 308 335 394 440 485 244 294 325 358 410 248 290 320 366 210 236 260 298 328 175 201 222 254 280 321 Cu Ft Air Per Min 4600 5500 6100 7500 8200 9400 10700 10000 10800 12800 14200 15700 12500 15000 16600 18300 21000 18200 21300 23500 26800 21800 24500 27000 30900 34000 24600 28200 31200 35700 39300 45100 B--Very Quiet (Homes, Theaters, Hospitals, etc). C--Quiet (Stores. Offices. Restaurants. Barber Fan Size Hp Approx. 1 Cu Ft Air Fan rpm | Per Min 6-S 72' 7-S 84' &S 96' 9-S 108' B1 C 04 C2 D3 D5 B2 C3 D5 D 734 B3 C5 D 734 D 10 B5 C 734 D 10 D 15 171 190 206 263 306 163 176 227 262 147 176 204 259 150 165 193 230 32000 35500 38500 49000 57500 49500 53500 72000 80000 66500 80000 93000 117000 98000 108000 128000 150000 2-OT 26' Twin 234-OT 32* Twin B C B C xM 450 514 ux 393 450 3-OT 38'Twin B C X 295 *4 337 3H-CT 44' Twin B C Vc 257 283 4-OT B 234 50'Twin C 134 270 9400 10700 15300 17500 19200 21800 26200 28800 34600 40000 Type Building Air Change in Minutes for Cooling Ventilating Shops, etc.). D--Industrial (Laundries. Factories. Canneries, Bakeries, Pressing Clubs, Garages, etc.) F--l Bakeries. Boiler Rooms. Canneries. Pressing Clubs. Laundries. Restaurants, Kitchens. Etc......................... *4-1 2-5 Barber Shops. Beauty Par lors. Billiard Rooms. Bowling Alleys. Garages. Factories, Restaurants. Stores. Etc..... *4-1*4 3-6 Auditoriums. Churches, Club Rooms. Schools, Theaters. Etc......................................... 4-8** Dimensions in Inches Fan Size 2-0 2340 3-0 334-0 4-0 434-0 5-0 6-S 7-S 8-S 9-S 30*4 36M 42>A 49 5534 61*4 6754 753* 8634 98% 111 34 6X 7% 7X 7% 9 .9*4 9*6 I5H 21*36 20 20 8** 9*36 936 OH 11*36 123* 123* 17)4 22*6 34 34 D Approx. 13 13 14 17 19 20 20 28 34 38 38 Fan Size 2-OT 2H-OT 3-OT 336-OT 4-OT A 30*4 36*4 42*4 49 55*4 B CD E Approx. 9*4 mm 7X 9H 7% 10)4 m _J!236 13 61*4 13 733* 14 85*4 17 98 19 110*4 Homes. Apartments. Hotels. Hospitals. Offices. Banks, Undertaking Establishments, Etc.......................................... *4-2 4-8 wnen uascu --* 150-200 cfm per person. Minimum on basis of seating capacity is 35 cfm per person. COOLAIR DIRECT DRIVE FANS Coolair Direct 'Drive Fan 16-24 in* Manufactured in four sizes from 16 to 24 in. in diameter. Positively quiet at 1200 rpm, not ex cessively noisy at 1800 rpm. Unique noise-reducing" de sign of blade is cov ered by U. S. Patent No. 1855660. 901 I