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104 Air Conditioning cami system* NIAGARA BLOWER COMPANY Service and Development in Air Engineering for Over 40 Years Factory and General Offices: Buffalo/ N.Y.-- Executive Offices, New York, N. Y. AIR ENGINEERING Balletia describes NIx*ra eqnipmeor for beerremorel by (he sir method, cooling liqoida sad esses, coadestiai rapors; heU end moisture control by complete fuocrioo sirconditioning; rspor equilibrium by direct liquid contact. BULLETIN No. 13$ AIR CONDITIONING Bulletins describe methods of obtaining precise control oftem perature and moisture to help you make your product in any climate at any season. Illus trated with diagrams and photographs- BULLETIN No. 122 BULLETIN No. 140 COOLING AND FREEZING Balletia describes Nisgsra "No-Frost" Method; production of lowair temperature* for industrial use*, sacb as testioc or pro cessing at extreme subaero temperatures or for control ofaircootstore in atmospheres be low tbe freezing point of water. BULLETIN No. 93 NO-FROST" METHOD Bulletin describes Niagara "No-Frost" Method of refrigera tion fot food freezing, frozen food warehous ing, fresh food precooliog sod storage, giving completely au tomatic operationwith no shut-down for de frosting. BULLETIN No. LOS AERO HEAT EXCHANGERS Bulletins describe evaporative cooling apparatus that keeps control oftemperature within two degrees by modulating tbe flow of sir. Saves 95 % of cool ing water. Provides heat when needed. BULLETIN No. 120 BULLETIN No. U2 AERO AFTER COOLERS Describes equipment forcooling compressed air or gases, holding temperatures below ambient atmospheric temperature to praveot condensation of mois ture. Includes applica tion to air liquefaction BULLETIN No. 130 AIR CONDITIONERS Bulletin describes Niagara coil surface sir conditioners for use with any refrigerant, offering any selection of air conditioning functions. Models available to match any load requirement. BULLETIN No. 133 FAN COOLERS Balletia* describe Niagara Fan Coolers, dry coilandbrinespray types for use with brine, ammonia or freon refrigerants. BULLETIN No. 110 BULLETIN No. 138 AERO VAPOR CONDENSERS Providing high vac uum, independent of a large supply of cod ing water. Solves che problems of water sup ply and disposaL Folly automatic. Saves pow er. Saves steam. BULLETIN No. 139B. DRYING AND DEHUMIDIFYING Bulletin 140 describes tbe use of a liquid absorbent for drying sir, for drying materials at low tempera tures, for packing and scoring metsoue sensitive materials and for process ing.Photograph* illustrate application*, diagram shows operation*. Quirts show air volume and dehumidifying capacities. BULLETIN No. W0 NIGH PRESSURE STEAM HEATING Bulletin describes method completely utilizing botb tbe sen sible and latent beat of bigb pressure steam. Trustworthy, longlived equipment fot beating or process. BULLETIN No. 109 AEROPASS CONDENSERS Bulletins describe evaporative refrigerant condensers providing protection against scaling of cubes, cootrolltng of compressor bead pressures, saving condeasei water. BULLETIN No. Ill BULLETIN No. 123 BULLETIN No. 131 REFRIGERANT CONDENSERS Bulletin describes evaporative conden sers for ammonia and freon refrigerants of fering high condensing capacity at a low cost per ton in power cost and upkeep as well as tow installation cost. BULLETIN No. U7 BULLETIN No. 142 LIQUID COOLERS Cooling for chilled water or solutions, with elimination of freeze-op damage, with rapid chilling of Urge fluid volume and dose temperature contxoL BULLETIN No. 104 MOTOR BLOWERS Bulletin describes blowers in two series up to }V auric pres sure. Available in one, two and three fan as semblies. Applicable to ventilating, drying, air conditioning. BULLETIN No. 89 For complete information, copies of Bulletins, Engineering Data, address NIAGARA BLOWER COMPANY* 405 Lexington Ave., New York 17, N. Y. Niagara District Engineers are located In principal cities. Air Conditioning . SSSJigX, im. 105 PITTSBURGH LECTRODRYER DIVISION P. O. BOX 1766 McGRAW-EDISON COMPANY PITTSBURGH 30, PA. This specially designed LECTRODRYER protects equipmeat in storage by maintaining a relative humidity of 3S percent or lower Air-conditioning (CH-type) LECTRODRYERS are used for automatic lowering of relative humidities in many types of industrial applications INDEPENDENTLY CONTROLLED DEHUMIDIFICATION FOR INDUSTRIAL APPLICATIONS AND AIR CONDITIONING Air-conditioning (GH-type) Lectrodryers provide an efficient, economical means of dehumidification in industrial areas in which the material in process or in storage requires a relatively dry atmosphere. Lectro dryers are used for this purpose in pharmaceutical houses, food processing plants, metal storage areas, and many types of packaging plants. The uninterrupted production, higher quality and safer storage made pos able by the introduction of dry air in such applications often save the user many times the cost of the Lectro-. dryer. In addition, operating costs are negligible. The dehumidification process is continuous and com pletely automatic. It is completely independent of any air-conditioning apparatus that might serve the same general area. If cooling is desired along with dehumidification--either for comfort air conditioning or in con junction with an industrial application--an after-cooler is mounted directly on the Lectrodryer. Wide Range of Sizes and Capacities Relative humidities of 35 percent or lower are obtained with standard CH-type Lectrodryers. Capacities range from 350 cfm to as high as 15,000 cfm. Moisture is re moved from the air by means of a solid adsorbent-- y activated alumina--with automatic reactivation being accomplished by gas, steam or electricity. Lectrodryers require almost no maintenance. The only moving parts are the motor and blowers, and the valve drive mechanism. Units are shipped completely as sembled, ready for easy installation. All are manu factured to rigid standards that have made Lectro dryer one of the world's foremost manufacturers of adsorbent dryers. Write for full details.