Document k6rGx0xZKnro0ZrjyqN2qgbpE

Air Conditioning Unit Heaters and Coolers John J. Nesbitt, Inc. Holmesburg, Philadelphia, Pa. 11 Park Place, New York City 205 W. Wacker Drive, Chicago, 111. Manu/octurers of THE NESBITT SYNCRETIZER Heating and Ventilating Unit, sold by John J. Nesbitt, Inc., and American Blower Corporation; NESBITT HEATING SURFACE with Dual Steam-distributing Tubes, NESBITT SERIES H HEATING SURFACE, and NESBITT SERIES W COOLING SURFACE, sold by leading manufacturers of fan-system apparatus; WEBSTER-NESBITT UNIT HEATERS (for details see page 957), distributed in the U.S.A. by Warren Webster & Company. . The Nesbitt Syncretizer--Series 400 The last word in heating and ventilating N units for schoolrooms, offices, etc., where the continuous introduction of outdoor air is desired. For engineering data, get Publi cation No. 225; for "The Story of Syncretized Air," Publication No. 231. Nesbitt Series B Thermovent For heating and ventilating auditoriums, gymnasiums, assembly halls, and similar gathering places. Publication No. 227. Nesbitt Series H Heating Surface ALL COPPER A lightweight, enduring, highly efficient blast-coil heating surface of tube-and-fin construction, made entirely of copper and copper alloy, designed for use with steam pressures up to 200 lb gauge. Large headers of seamless copper tubing with, collars extruded from the header body, providing large areas to which the condensing tubes are silver brazed. Seven types,each in eight fin widths and up to six teen filmed lengths--a total of 784 sizes from which to select. Sold by leading manufacturers of fan-system apparatus (list upon request). Send for Publication No. 232 for complete engineering data. Nesbitt Heating Surface with Dual Steam-distributing Tubes Copper tube-and-fin surface for lowpressure applications. Perfectly adapted to close, continuous automatic control with modulating steam valves. Steam-distri buting tubes within the condensing tubes carry the steam equally to the full section, assuring UNIFORM discharge tempera tures, even under a throttled steam supply; eliminating temperature stratification; pre venting tube freezing without preheaters; giving ideal system results. Cased or uncased units of many sizes and capacities. Sold (like all other Nesbitt Surface) by leading manufacturers.of fansystem apparatus (list upon request). For full particulars and engineering data, send for Publication No. 229-1. Nesbitt Series W Cooling Surface For all air-cooling applications -using chilled water. Continuous and cleanable tube types. Tube-and-fin construction. For full particulars and engineering data, send for Publication No. 233. 836 Air Conditioning ff Refrigeration Economics Co., Inc. Canton, Ohio RECOY PRODUCTS RECOY AIR CONDITIONING UNITS of the suspended type as shown, or vertical floor type, are made for all season purposes, also for summer cooling or winter heating and humidifying. Capacities range from one ton up to anv size required. Cooling and heating surface, and filter area are liberally pro portioned and blowers are of moderate speed, all to insure the highest efficiency and quiet, satisfactory performance. Bulletin "E . RECOY CONTINUOUS FIN BLAST COILS for cooling or heating are constructed of copper tubing with aluminum fins, or all steel hot dip galva nized after fabrica tion and are suitable for use with any cool ing or heating medi um. Bulletin "F". RECOY EVAPORATIVE CONDENSERS are cooling towers and condejisers combined into one efficient unit for use indoors or out. They reduce the water consumption 95 per cent and are used with no water at all in cold weather. Made in sizes from one to one hundred tons. Bulletin "F". RECOY DOWN DRAFT FIN COILS are used for all refrigerating purposes for tem peratures above 34 F. Coils defrost at every cutout period and are equipped with alu minum troughs that catch the water. No coil bunkers or pans required. Air circulation unimpeded and very rapid and humidities of 85 to 90 per cent are easily maintained. Coils are made of aluminum, copper, or steel hot dipped galvanized after fabrication. They require only about 12 in. of head room and may be hung up to the ceiling between meat rails, etc., thus conserving space and reducing the cost of cold storage rooms. Bulletin "F". RECOY REFRIGERATING FINNED COILS and unit coolers are made up on con tinuous copper, or aluminum tubing (no joints so no leaks), with aluminum fins, or all steel, hot dipped galvanized after fabrication. Fins are corrugated to hold moisture in the air stream during off cycle to re-evaporate and maintain high humidities. They are applica ble to both large and small work. Bulletin "F". 837