Document KGoKM0nvpo41gzM59bjE84k6r

u. s. FAT. OFF. Air Conditioning Unit'Heatsrs and Coolers J. Murray Manufacturing Co. Wausau, Wisconsin Offices in Principal Cities MANUFACTURERS OF GRID UNIT HEATERS AND GRID BLAST COILS Designed and tested to operate withsteam or hot water systems--for steam pres sures from 2 lbs to 250 lbs. 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. Overall dimensions forinstallation of Cast Iron GRID Unit Heater CI (CAST IRON) SERIES GRID UNIT HEATER DATA Model No. Cl-1000 CI-1200 CI-1500 CI-1520 Cl-2000 CI-2025 Cl-2600 CI-2S04 CI-3630 CI-3000 CI4000 Capacities Dimensions Motor 5 PSl Steam Vol. 60F Air Pipe Size A B C D E Fan HP RPM CFM Btu/. Hr Final Temp. Supply Return F m 1W wT 91 IsT 7/25 1550 572 29,080 106 u n Hi ifii 12} 12} 18} 1/15 1550 788 45,450 112 n. U 17} 15} 11} 15 23} 1/8 1750 1500 76,500 107 u 1} 17} is) 11} 21 28} 1/8 1750 1700 101.500 114 i} 1} 22} 20* 11} 21* 28} 1/6 1160 2600 143,000 22} 20* 11} 25} 35} 1/6 1150 2875 173,640 27} 25} 13 25} 35} 1/2 1160 4350 224,000 110 115 107 2 2 2 H u 1} 27} 25} 13 251 35} 1/4 1150 3300 206,000 117 2 U u27} 25} 13 31 40}' 1/2 1150 4650 275,800 114 2 u32| 31 13 31 40* 1/2 850 6300 332,000 108 21 321 31 13 31 40} 1} 1160 8000 380.000 103 2} il Sup port Rod Dia. X X x X x M X X X X X Approx. Ship. Weight Lbs. 150 210 280 390 490 520 700 660 900 1020 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. 1144 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 through offices of John J. Nesbitt. Inc. NESBITT CONVECTORS, sold by plumbing and heating wholesalers; WEBSTER-NESBITT UNIT HEATERS (See page 1407), distributed in U. S. A. by Warren Webster & Company. NESBITT SYNCRETIZER--Series 500 Semi-recessed Model 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; Direcled-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. 261-Section A. Nesbitt Series B Thermovent For heating and ventilating auditori ums, gymnasiums, assembly halls, and similar gathering places. Publication No. 227-2 NESBITT SURFACE and dehumidifying 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-beat 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 totubes. 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. S'. . 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 semirecessed. Model UW for hanging on wall. Send for Pub-: lication 262. 1145