Document LK3JwQMdaxm7je3860VVQJL8w

Air Conditioning Unit Heaters and Coolers D. J. Murray Manufacturing Go. Wausau, Wisconsin T. M. REGO. S^PAT. OFF. - 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 pressures 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. 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 (See page 1229), distributed in U. S. A. by Warren Webster & Company. One piece construction "fin" heating sections of high test cast iron--no soldered, brazed, welded or expanded connections. Patented. Cl (CAST IRON) SERIES GRID UNIT HEATER DATA Model No. A Dimensions B CD E Motor HP RPM Vol.. Fan CFM Capacities 5 PS1 Steam 60" F Air Btu / Hr Final Temp. F Pipe Size Supply Return Support Rod Dia. Approx. Snip. Weight Lbs. CI-1000 n% 10% 12% 1(% 171% 1/25 1550 572 29.080 106 i% i% % Cl-1200 14% 13% 12% 1356 21% 1/15 1550 798 45.450 112 i% i% % 150 210 CI-1500 171% ,153% 11% 16 23% % 1750 1500 76.500 107 i% i% % 280 CI-1520 171/2 15% 11% 21 28% % 1750 1700 ICI.500 114 i% i% % 390 CI-2000 22% 20& 11% 21% 28% 1/6 1150 2600 143.000 110 2 i% % 490 CI-2025 22% 20% 11% 25% 35% 1/6 1150 2875 173.640 115 2 i% % 520 CI-2500 CI-2504 27% 25% 13 271% 25% 13 25% 35% % 25% 35% % 1150 4350 224.000 1150 3300 206.000 107 117 2 2- i% % i% % 700 660 CI-2530 271% 25% 13 31 40% % 1150 4650 275.800 114 2 i% % 900 CI-3000 32% 31 13 31 40% % B50 6300 332.000 108 2% i% % 1020 CI-3000 32% 31 13 31 40% >% 1150 8000 380,000 103 21/2 i% % 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. 996 NESBITT SYNCRETIZER--Series 400 For heating and ventilating school rooms, offices, etc., where the continuous introduction of outdoor air is desired. For engineering data, get Publication 225-2; for "The Story of Syncretized Air," Publi cation 231-2. For data on The Nesbitt Package, schoolroom ensemble consisting of the Syncretizer, Convector, and storage units, get Publication 249. Nesbitt Series B Thermovent For heating and ventilating auditoriums, gymnasiums, assembly halls, and similar gathering places. Publication No. 227-2. NESBITT COOLING SURFACE Series W Surface For air cooling and cooling and dehumidifying (with cold water) or air heating (with hot water). Construct ed of copper tubes and plate-type alu minum fins. Avail able in either con tinuous or cleanable tube type, in single sections having one to eight row's of tubes deep, in three fin spacings, in eleven fin widths, Uncased Surface Showing Drain Header and up to sixteen finned tube lengths. Sturdy galvanized casings. For engineer ing data send for Publication 246. NESBITT HEATING SURFACES Series D Surface With Dual Steam-distributing Tubes Copper tube and aluminum fin surface for low-pressure applications. Adapted to close, continuous automatic control with modulating steam valves. Steam-dis tributing tubes within condensing tubes carry the steam equally to the full section assuring uniform discharge temperatures even under throttled steam supply; eli minating temperature stratification; pre venting tube freezing without preheaters. Series D Surface is available in two types, Type DS and Type DD. Steam is supplied from one end of the surface in Type DS, which is recommended for lengths up to six feet. Steam is supplied from both ends of Type DD, which is recommended for lengths over six feet. Cased or uncased units of many sizes and capacities. For engineering data, send for Publication No. 247-1.' Nesbitt Series H Heating Surface A lightweight, enduring, highly efficient blast-coil heating surface designed for steam pressures up to 200 lb. gauge. Send for Publication 248. NESBITT CONVECTORS D e sig n e d for steam or hot water heating of resi dences, apartments, offices, etc. Send for Publication 252. Available in 20 stock sizes. 997