Document ppX59wbOJgromyooGvmQ9K3qX

U. 8. PAT. OFF. Air Conditioning Unit Heaters and Coolers Murray Manufacturing Co. Wausau, Wisconsin Offices in Principal Cities MANUFACTURERS OF THE GRID UNIT AND GRID BLAST COILS Designed and tested to operate with steam or hot water systems--for steam pres sures from 2 lbs to 250 lb3. Engineered along the same lines as the standard GRID Unit which had aluminum heating sections and has been on the market since 1929. One piece construction "fin" heating sections of high test cast iron--no sol dered, brazed, welded or expanded con. nections. Patented. Ooerall dimensions for i installation of Cast Iron GRID Unit Heater CI (CAST IRON) SERIES GRID UNIT HEATER DATA Model No. A Dimensions BCD Capacities Motor 5 PSI Steam Vol. 60*F Air Pipe SUe Sup Approx. port Ship. E Fan CFM HP RPM Btu/ Hr Final Temp. Supply Return F Rod Weight Dia. Lbs. I3T T ~n "isT 1/25 1550 572 29,080 14} >3} 12* >2* 18* 1/15 1550 798 45,450 17* 1*1 11* 10 23* 1/8 1750 1500 76,500 CI-1520 17* 15* H* 21 281 1/8 1750 1700 101,500 CI-2000 22* 20A 11* 21ft 28* 1/6 1150 2600 143,000 22* 20ft II* 25} 35* 1/6 1150 2875 173. 106 112 107 114 110 115 1* 1* 1* 11 2 2 1* 'X uX 1* X 1* X na HX 150 210 280 390 490 520 ?7* 25* 13 25* 35} 1/2 1150 4350 224,000 107 2 l* X 700. ?7* 25* 13 25* 35* 1/4 1150 3300 206,000 117 2 U X 660 27* 25* 13 31 40* 1/2 1150 4650 276,800 114 2 u X 900 CI-S000 32| 31 13 31 40* 1/2 850 6300 332.000 108 CI-3000 321 31 13 31 <0J 1* 1150 8000 380.000 103 21 21 u 11 X 1020 H 1070 NO ELECTROLYSIS TO CAUSE CORROSION Low maintenance expense. More air changes per hour. Positive "directed" heat. No leaks--no breakdowns. Lower outlet temperature. Larger air volume. . No soldered, brazed or expanded joints. Open design that keeps units clean. Send for complete catalog Information Send for Information on Blast coils and radiation. 1116 Air Conditioning Unit Heaters and Coolers John J. Nesbitt, Inc. Philadelphia 36, Pa. Manufacturers of THE NESBITT SYNCRETIZER Heating and Ventilating Unit, and THE NESBITT PACKAGE, schoolroom ensemble consisting of the Syncretizer, Convector and storage units, 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; NESBITT CONVECTORS, sold by plumbing and heating wholesalers; WEBSTER-NESBITT UNIT HEATERS (Seepage 1375). distributed in U. S. A. by Warren Webster & Company. NESBITT SYNCRETIZER--Series 500 Semi-recessed ModC __ For heating and ventilating school rooms, offices, etc. where the continuous introduction of outdoor air is desired. Incorporates exclusive Nesbitt features: Comfort Control provides maximum com fort; Air Volume Stabilizer prevents ex cessive quantities of outdoor air from entering the unit, saves fuel; Uniform Air Discharge Temperatures assured by use of Nesbitt Dual Steam-Distributing Tubes inside the Syncretizer radiator; Directed-Flow Adjustable Outlet permits the direction of the discharge air to be varied to suit individual classroom re quirement. For engineering data. Pub. 261. For data on The Nesbitt Package, school-room ensemble consisting of the Syncretizer, Convector, and storage units. Pub. 258 Nesbitt Series B Thermovent For heating and ventilating auditori ums, gymnasiums, assembly halls, and similar gathering places. Publication No. 227-2 NESBITT SURFACE and dehunudifymg with cold water, or air heating with hot water. Copper tubes and plate-type aluminum fins Wide range of sizes in three types; Type WD sections have exclusive drainability feature and the surface pitched in the casing. Positive drainage insured pro tecting against winter freeze-ups. Pub. 246. Type WB sections for booster-heat ing or air-cooling applications with rela tively small air volumes and drainability feature unnecessary. Type WC sections employ standard Nesbitt Series W Sur face cores, pitched in the casing. De signed for use where tubes require peri odic cleaning. Cast iron headers with removable cover plates allow access to tubes. Single or double serpentine cir cuits in a range of sizes. Pub. 255 SERIES H. General blast coil surface for heating, ventilating, air conditioning and drying in both high- and low-pres sure steam systems. Copper tubes and aluminum fins. Seven surface types, full range of sizes. See publication 248. SERIES D. Heating surface with Steam-Distributing Tubes, ideal for pre heating outdoor air. Freeze-proof plus. Uniform discharge temperatures; precise controllability with modulating valves. Copper tubes and headers, aluminum fins. Available in Type DS having a single steam supply, and Type DD hav ing a steam supply at both ends of the section. Publication 247. NESBITT CONVECTORS SERIES W. Continuous tube or cleanable tube water surface for air-cooling Designed for steam or hot water heat ing of residences, apartments. Available in 21 stock sizes.. Model U for floor mounting, free standing or semi- recessed. Model UW for hanging on wall. Send for Pub lications 252 and 252-A. 1117 S