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Temperature Control Minneapolis-Honeywell Regulator Company Automatic Control Systems for Heating, Ventilating, Air Conditioning BROWN INSTRUMENTS for Indicating, Recording, Controlling NATIONAL PNEUMATIC CONTROLS for Heating and Air Conditioning Factories: MINNEAPOLIS, MINN., PHILADELPHIA, PA., WABASH, IND., CHICAGO, ILL. Branch and Distributing Offices...........................*Stock carried Albany. N. Y. Allentown Atlanta* Baltimore Birmingham Boston* Bridgeport. Conn. Buffalo* Butte* Charlotte, N.C. Chicago* Cincinnati Cleveland* Columbus Dallas Dayton Denver* Des Moines Detroit* East Orange Eau Claire. Wis. El Paso, Texas Fargo, N.D. Hartford* Harrisburg, Pa. Haverhill, Mass. Houston Indianapolis* Jackson, Mich. . Kalamazoo Kansas City* Los Angeles* Louisville, Ky. Mason City, Iowa Milwaukee* Minneapolis-- St. Paul* New Orleans New York* Oklahoma City Omaha* Peoria Philadelphia* Pittsburgh* Portland* Providence* St. Louis* Salt Lake City* San Antonio* San Francisco* Scranton Seattle Sioux Falls, S.D Springfield, Mass. Syracuse* Toledo Tulsa* Wabash, Ind. Washington,D.C.* Wichita* Worcester, Mass. Youngstown In Canada: Montreal, Toronto,* Calgary, Vancouver, London, Winnipeg In Europe: Amsterdam, Holland;* London, England * Stockholm, Sweden* Minneapolis-Honeywell is. ready to assume the complete responsibility for the supply and installation of automatic controls and instruments specified for any building that y6ii design. M-H serivce is complete. Through our nationwide organization, we are pre pared to make complete installation, supervise installation, provide periodic service or supply control equipment. Minneapolis-Honeywell can offer unbiased advice on your control requirements--manufacture and install complete electric control systems, complete pneumatic control systems, or a combination of the two. Each Minneapolis-Honeywell office maintains a factory trained engineering personnel. Your Minneapolis-Honeywell engineer will be glad to furnish you with recommended control layouts and cost estimates. He is trained to recommend control results before installation of equipment and to produce control results after the installation has been completed. THE MODUTROL SYSTEM OF ELECTRIC CONTROL Duct Type Tempera The Modutrol Systenk designation is applied to" any combination ture Controller of Minneapolis-Honeywell Automatic Electric or Pneumatic Controls or Self-contained Automatic Valves used to govern the operation of air conditioning or heating systems other than the small domestic installations. A wide variety of both modulating and two position motors, controllers and valves are available thus making the Modu trol System extremely flexible as to the selection of control equipment to produce the desired results. Modulating Motorized Valve Complete electric control systems are available for those instal lations where precise, flexible and dependable results are required. Electric controls of the Modutrol System provide a dependable means of effecting modulation through the use of the "Series 90" control circuit. All electric motor power units used in this system are completely oil immersed in order to insure quiet operation and years of trouble-free service. 1122 Minneapolis-Honeywell Regulator Company Temperature Control THE GRADUTROL SYSTEM OF PNEUMATIC CONTROL Minneapolis-Honeywell offers a complete line of pneu matic controls. To such features as "Helmet Seal" Ther mostats and Metaphram construction of valve and damper motors has been added the accurate and infinite positioning of the Gradutrol Relay. For commercial air conditioning and space heating installations, the Gradutrol System offers a truly remarkable advance in pneumatic control. COMBINATION ELECTRIC AND PNEUMATIC SYSTEMS The outstanding advantages of both the electric Modu trol System and pneumatic Gradutrol System of control may be combined in a single installation. Thus maximum flexibility and low installation cost are obtained. Minne apolis-Honeywell can offer either an electric or pneumatic system, or a combination of the two. This is your guaran tee of an unprejudiced recommendation. Gradutrol Motor and Damper BROWN INSTRUMENTS The extent to which air conditioning equipment is being used in office buildings, theatres, stores, industrial buildings, etc., has opened up a wide demand for indicating and recording resistance thermometers because the temp eratures throughout these air conditioning . systems should be checked; periodically in order to obtain the best results at minimum operating cost. To obtain uniform conditions from modern equipment, it is necessary that the engineer in charge of operation have a visual picture of actual conditions. Brown Resistance thermometers are available for in dicating, recording, and controlling service and are applicable to all types of air Conditioning and space heating installations. Brown Portable Recorder In addition to Resistance Thermometers, The M-H Brown Instrument Division manufactures: Thermometers Hygrometers Pressure Gauges Vacuum Gauges Potentiometer Pyrometers Flow, Meters CO2 Meters Tachometers Liquid Level Gauges Protectoglo System RESPONSIBILITY FOR ENTIRE CONTROL SYSTEM Minneapolis-Honeywell Regulator Co. is equipped to assume the entire responsibility forany control installation, thereby eliminating the difficulties and misunderstandings which division of responsibility may create. Brown Recording Resistance Thermometer 1123