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Water Conditioning Ferro-Nil Corporation 500 Fifth Avenue New York City WATER CONDITIONING FOR AIR CONDITIONING Photograph reprinted with permission of National Broadcasting Company All water used for washing air picks up corrosive matter from the air. The corrosive matter may be oxygen, carbon dioxide, sulphur tri-oxide or sulphur di-oxide. In air conditioning systems where water is recirculated, the amount of acidic material contained in the water may reach very high levels. This acid water will corrode metallic surfaces with which it comes in contact. In severe cases equipment has been known to fail after three months operation due to corrosive action of water used. Ferro-Nil Service by maintaining water in a non-corrosive condition, prevents corrosion. Corrosion1 causes high rates of depreciation. Ferro-Nil Service by maintaining metallic surfaces free from rust and scale affords optimum heat transferefficiencies at all times. We number among our clients, nationally known corporations such as:-- Rockefeller Center National Broadcasting Company Columbia Broadcasting Company Runkel Chocolate Company Metropolitan Life Insurance Company U. S. Government SUBSTANTIAL DOLLAR SAVINGS GUARANTEED - Let us submit estimate of cost of Ferro-Nil Service for your air conditioning equipment. The illustration depicts a typical installation used on dehumidifier by the National Broadcasting Company. Note simplicity of design with consequent simplicity of in stallation and operation. See discussion of Corrosion Chapter 34. 946 Index to Modern Equipment American Society of Heating and Ventilating Engineers Guide, 1935 AIR CLEANING EQUIPMENT American Air Filter Co., Inc., 768-769 York Ice Machinery Corp., 746 AUTOMATIC COAL BURNERS Young Radiator Co., 827 (See Coal Burners, Automatic) American Blower Corp., 726-727 AIR ELIMINATORS American Radiator Co., 780-783 Anderson Manufacturing Co., Bayley Blower Co., 809 934 AUTOMATIC SHUTTERS (See Shutters. Automatic) Betz Unit Air Cooler Co.. 728 C. A. Dunham Co., 890-891 AUTOMOBILE HEATER FANS Canadian Sirocco Co., Ltd., 726727 Gilbert & Barker Manufacturing Co., 762-763 Torrington Manufacturing Co.. The. 814-815 Carrier Engineering Corp., 729 Hoffman Specialty Co., Inc., Coppus Engineering Corp., 770 894-899 BENDS, Pipe Dail Steel Products Co., 754-755 Electric Air Heater Co., 823 Mueller Steam Specialty Co., Inc., 906 Baker Ice Machine Co., Inc., 747 Crane Co., 784-785 General Electric Co., 760-761, 866-867 Niagara Blower Co., 738-739 G & O Manufacturing Co., The. 822 Independent Air Filter Co., 771 AIR FILTERS (See Air Cleaning Grinnell Co., Inc., 830-832, 893 Kelvinator Corp., 734-737 Equipment) L. J. Mueller Furnace Co., 756- BENDS, Return (See Pipe, Return 757 AIR HEATING SYSTEMS (See Bends) Niagara Blower Co., 738-739 Heating Systems, Air) Owens-Illinois Glass Co., 772 BLOCKS, Asbestos Research Corp., 741 W. R. Ripley Co., 773 Sarco Co., Inc., 904-905 VV. W. Sly Manufacturing Co., The, 806 Somers Air Filter Sales Co., 774 Staynew Filter Corp., 775 B. F. Sturtevant Co., 818 AIR MEASURING AND RE CORDING INSTRUMENTS American Blower Corp., 726-727 Bristol Co., The. 837 Builders Iron Foundry, 864 . Canadian Sirocco Co., Ltd., 726- 727 Carrier Engineering Corp., 729 Eagle-Picher Lead Co., The, 851 Johns-Manville, 854-855 BLOWER WHEELS (See Wheels. Blower) BLOWERS, Fan (See Fans, Sup ply and Exhaust) AIR COMPRESSORS (See Com pressors, Air) Julien P. Friez & Sons., Inc., 924 Leeds & Northrup Co., 840 Parks-Cramer Co., 740 Taylor Instrument Cos., 842-843 BLOWERS, Forced Draft American Blower Corp., 726-727 Bayley Blower Co., 809 Bristol Co., The, 837 AIR COOLING AND DEHUMIDIFYING APPARATUS AIR MOISTENING APPAR ATUS (See Humidifiers) Aerofin Corp., 819-821 Buckeye Blower Co., 828-829 Buffalo Forge Co., 810 Canadian Sirocco Co.. Ltd.. 726- 727 American Blower Corp., 726-727 AIR PURIFYING APPARATUS American Mbistening Co., 725 Betz Unit Air Cooler Co., 728 American Radiator Co., 780-783 . Betz Unit Air Cooler Co., 728 Buffalo Forge Co., 810 Canadian Sirocco Co., Ltd.. 726727 Carbondale Machine Corp., 748 AIR RECEIVERS (See Receivers, Air) AIR VALVES (See Valves, Air) Carrier Engineering Corp., 729 Clarage Fan Co., 730 AIR VELOCITY METERS (See Dail Steel Products Co., 754-755 Meters, Air Velocity) Fedders Manufacturing Co., Inc., 824 AIR WASHERS Frick Co., Inc., 749 Frigidaire Corp., 732-733 General Electric Co., 760-761, 866-867 Grinnell Co., Inc., 830-832, 893 Ilg Electric Ventilating Co.,'813 McQuay, Inc., 731 1 Minneapolis-Honeywell Regu lator Co., 916-923 Modine Manufacturing Co., 825 Niagara Blower Co., 738-739 Norge Corp., 803 Research Corp., 741 Savage Arms Corp., 742 Scott-Newcomb, Inc., 764-765 B. F. Sturtevant Co.. 818 Thermal Units Manufacturing Co., 743 American Blower Corp., 726-727 American Radiator Co., 780-783 Bayley Blower Co., 809 Betz Unit Air Cooler Co., 728 Buffalo Forge Co., 810 Canadian Sirocco Co., Ltd., 726- 727 Carrier Engineering Corp., 729 Clarage Fan Co., 730 Dail Steel Products Co., 754-755 Meyer Furnace Co., The, 758 L. J. Mueller Furnace Co., 756-757 Niagara Blower Co., 738-739 Parks-Cramer Co., 740 Savage Arms Corp., 742 B. F. Sturtevant Co., 818 Westinghouse Electric & Manu facturing Co., 744-745, 868 L- J- Wing Manufacturing Co., 816-817 Wittenmeier Machinery Co., 753 AMMONIA COILS (See Coils. Ammonia) ASBESTOS PRODUCTS (See In sulation) Champion Blower & Forge Co.. 811 Clarage Fan Co.. 730 Coppus Engineering Corp., 770 DeBothezat Corp., 812 Ingersoll-Rand Co., 750-751 John J. Nesbitt, Inc., 828-829 B. F. Sturtevant Co., 818 Thermal Units Manufacturing Co., 743 Trane Co., The, 907 L. J. Wing Manufacturing Co., 816-817 BLOWERS, Heating and Venti lating American Blower Corp., 726-727 Bayley Blower Co., 809 Buffalo Forge Co., 810 Canadian Sirocco Co., Ltd.. 726727 Champion Blower & Forge Co.. 811 Clarage Fan Co., 730 DeBothezat Corp., 812 C. A. Dunham Co., 890-891 Gar Wood Industries, Inc., 759 Ilg Electric Ventilating Co.. 813 L. J. Mueller Furnace Co., 756757 Niagara Blower Co., 738-739 B. F. Sturtevant Co., 818 Thermal Units Manufacturing Co.. 743 L. J. Wing Manufacturing Co., 816-817 Numerals following Manufacturers' Names refer to pages in the Catalog Data Section 947