Document LKZVR2Yo3JjmjJ198zm7jbBpX

Air Conditioning Research Corporation 405 Lexington Avenue, New York City RESEARCH SYSTEM OF AIR CONDITIONING (Patented and Patents Pending) The Research Corporation System of Air Conditioning features a direct method of chemical dehumidification, and may be applied to either comfort control or industrial processing. It functions either with or without the use of refrigeration, depending upon operating conditions. In the working unit, or Calorider, a moisture-absorbing salt solution is sprayed over copper extended surface . coils through which cooling water cir culates. This salt solution is automatically kept at a definite concentration by heat supplied at relatively low temperatures (e.g., by waste steam). The system makes possible the independent and yet simultaneous control of tempera ture and humidity over a wide range, at extremely low operating cost. Advantages of Research Corporation System of Air Conditioning 1. Installation costs are moderate, opera ting costs are cut 50 to 80 per cent. 2. Cooling water at 70 deg gives condition ed air with dew-point as low as 22 deg. 3. Maintenance is simple, cheap and in frequent. No reciprocating machinery, no gas to leak. The only moving parts are fans, pumps and their motors. 4. Noise and vibration limited to that of main air supply blower. 5. Fully automatic control, all year 'round if desired; relative humidity may be held sfc 3 per cent at any point between 15 and 50 per cent. 6. Equipment available in sizes of 1000, 3000, 6000, 9000, 12000 and 18000 cfm. COEY MULTISTAGE COOLING TOWERS (Patented and Patents Pending) "Water Saved is Money Earned" ~ The Coey Multistage Cooling Tower is constructed of a copper-bearing steel shell and corrosion resisting supporting members, Red Gulf Cypress wood baffles, a non-overloading reverse blade centrifugal fan rotor, and the Coey Spray Eliminator of copper-bearing steel or aluminum. Table of Capacities and Sizes j M odd No. Nominal Water Flow Cpm Height.above beams* 1 Diam l Operating W gt Pounds* Mech. R e frig . Tons | | Steam je t 1! | Refrig. Tons | Steam Condensing at 27 in. Vac. 115 F L b per hour a X o o 2 10 or 10-A 20-R 35 or 35-R 50 or 50-R 85 or 85-R 110 or liO-R 150 or 150-R 100 2.0 225 5.0 375 7.5 550 10.0 850 15.0 1100 20.0 1400 25.0 y- 0" II'- 5' 14'- 2' 16'- 9* 18'- 8' 21'- 7' 22M0' 5'- O' 4500 35 15 1,125 8'- 5' 9000 75 35 2,500 II'- 3' 15500 125 60 4,290 13'- 3' 21500 165 90 6,200 15'- O' 30000 235 135 9.550 17'- 9' 43000 375 175 12,400 20*- O' 56000 465 230 15.700 Compact, light in weight, spray free and quiet in operation, it is desirable for installation anywhere, but is especially well-suited for roof and basement installations in congested districts. Controlled Cooling. Sprayless Operation. Minimum Noise Level. Architectural Harmony. Complete information on Research Corporation products gladly sent upon request. Other Equipment: Cottrell Electrical* Precipitation Systems--Multiclone Dust Collectors--Impax Separators--Cottrell Royster Deodorizers--Royster Stoves for High Temperature Heat Exchange. 880 Air Conditioning Servel, Inc. Electric Refrigeration and Air Conditioning Division Evansville, Indiana AIR CONDITIONING Servel specializes in the manufacture of refrigerating machines for the air conditioning industry. Eliminating side lines and accessories, Servel concentrates its engineering and manufacturing facilities on this one all-important element in every complete, system. Backed by 17. years of experience in building heavy-duty low-pressure refrigerating machines, Servel units offer every modern feature, plus a record of proven dependability. SERVEL'S NEW PRODUCTS FOR 1939 Servel offers a fully integrated line of machine units, designed as a "family." This line is the result of a research program inaugurated early in 1935. Since that time, dozens of new materials, design features, manufac turing processes and practical selling ad vantages have been developed. All units have been moulded to the modern tread. While special stress has been placed on quiet operation and compactness, there has been no sacrifice of high capacity and overall efficiency. Remote Machines--For conventional central fan systems or room coolers, Servel . offers over twenty models, ranging from Yi ton to 20 tons and including air-cooled, water-cooled and evaporative condenser types. Air-cooled models feature shrouded condensers with leaf-type "Streamair" fans. The larger water-cooled units have the economical counter-flow shell and tube condensers developed by Servel two-years ago. Machines for Self-Contained Units --For manufacturers or assemblers of selfcontained conditioners, Servel offers com pact assemblies of compressors, condensers and auxiliaries suited to this type of work from Yl. ton to 10 tons. Servel offers nine distinct compressors for use with units of Y ton to 20 tons capacity. All except the smallest are four or eight-cylinder compressors, insuring absolute balance and freedom from vibration. Manufacturers will find these compressors adaptable to almost any assembly program. Servel's engineers will be glad to supply technical data, specifications and other details to responsible firms. Typical Compressor EVAPORATIVE CONDENSERS For sections of the country where water rates are high, or where there is a shortage of water supply or sewage facilities, Servel offers five economical evaporative condensers. Ranging in size from 5 tons to 20 tons, these evaporative condensers are shipped complete, including coil, blower, pump, receiver, eliminator, by-pass connec tion, motors, drives and control. Each model is designed to handle full capacity, with condensing temperature within 25 F of entering ' wet-bulb. 881