Document 9L9Y9JDR3nLYVNbMZdVgKGkKV

Air Conditioning Unit Heaters and Coolers The Unit Heater and Cooler Division D. J. Murray Mfg. Go. Wausau, Wisconsin Offices in Principal Cities MANUFACTURERS OF THE GRID UNIT (patented) AU-cast aluminum "fins" bonded to cast high-test iron core. No soldered, brazed, or expand ed joints -- no unions--no seams --fewest connec tions Possible. GRID UNIT HEATER DATA Model No. Dimensions Inches A B c D* Face Area Sq Ft Motor Hp Rpm Vol. at Fan Capacities 5 Lb Steam 60* Air Btu htnai Temp. Approx. Shipping Weight Pipe Size* Supply Return 1000 16% n% 9% 16 0.84 1200 l8>/2 13% 11% 17% 1.04 515 23% 17% 11% 20 1.65 1500 23% 17% 11% 20 1.67 1520 27% 17% 11% 20 2.2 520 28% 22% 11% 21% 2.9 2000 28% 22% 11% 21% 2.9 2025 33% 22>/, 11% 21% 3.6 525 35% 271% 13 28 4.5 1/20 1/20 1/10 1/10 1/10 1/6 1/6 1/6 1/2 1700 1700 1750 1750 1750 1150 1150 1150 1150 578 711 1290 1450 1700 2500 2500 2875 4200 29,400 46,000 59,600 77,500 104,000 102,300 148,000 177,000 166,400 107 100 i%" i%" 119 120 i%" !>/." 102 160 i%" !%" 109 210 i%" i'/." 113 "~250 -- i%" i%" 97 250 2" . i%" 114 320 2" i%" 115 370 2" i'/." 94 390 2" i%" 2504 35% 271% 13 28 4.5 1/4 1150 3200 210,000 118 420 2" !%" i'/."2500 35% 27% 13 28 4.5 1/2 1150 4200 225,000 108 440 2" iy."2530 37% 27% 13 28. 5.3 1/2 1150 4650 282,000 115 530 2n i%"530 39% 32% 13 29 6.5 1/2 1150 5300 260,500 105 600 PA" 3000 39% 32% 13 29 6.5 1/2 850 6350 341,000 109 690 PA" iy." 3000 39% 32% 13 29 6.5 : 1% 1150 8100 394,000 104 725 P/f iy." Vane* with type of motor. GRID UNIT HEATERS ARE NOT AFFECTED BY ELECTROLYTIC ACTION No leaks--no breakdowns. Low maintenance expense. More air changes per hour. Positive "directed" heat. Lower outlet temperatures. Larger air volume. Reduced fuel cost. Applicable to either low or high steam pressure lines. Send for Bulletin on Units not listed above. 904 D. J. Murray Mfg. Co. Air Conditioning Unit Heaters and Coolers GRID BLAST COILS race view side view No Electrolysis to cause corrosion* AU-cast aluminum heating sections. Only one type metal in contact with steam. Therefore, no electrolytic action is de veloped with its resultant corrosion to cause leaks and breakdowns. Grid Blast Coils are different. Cutaway section above shows why Grid Units are dif ferent-- and how manifold is con nected with steam chamber--a simple and efficient con nection. Guaran teed for pressure up to 250 lb steam pressure with high temperatures. Compact and oc cupies less space than other radia tion of equal capa city. No leaks--no breakdowns. Low maintenance ex pense. No tortuous air passages; hence, easy to clean at all times. Free area is much greater than other types of coils. Send for com plete data. GRID BLAST COILS DATA Model B2I5 B3I5 B4I5 B5I5 B6I5 B220 B320 B420 B520 B620 B225 B325 B425 B525 B625 B230 B330 B430 B530 B630 Face Area Sq Ft 1.15 \.72 2.30 2.88 3.45 1.50 2.25 3.00 3.76 4.52 1.86 2.80 3.72 4.66 5.58 2.22 332 4.43 5.54 6.65 No. of Sections Wide Two Three Four Five Six Two Three Four Five Six Two Three Four Five Six Two Three Four Five Six A 9% 14% 19% 24% 29% 9% 14% 19% 24% 29% 9% 14% 19% 24% 29% 9% 14% 19% 24% 29% Dimensions, Inches B ioy. 15% 20-% 25% 30% ioy. 15% 20% 25% 30% 101/, 15% 20% 25% 30% ioy. 15% 20% 25% 30% c 16% 16% 16% 16% 16% 21% 21% 21% 21% 21% 26% 26% 26% 26% 26% 31% 31% 31% 31% 31% D 20% 20% 20% 20% 201/2 25% 25% 25% 25% 25% 30% 301% 30% 30% 301% 35% 35% 35% '35% 35% E 26% 26% 26% 261% 26% 31% 31% 31% 31% 31% 361% 36-% 361/2 36% 36% 41% 41% 41% 41% 41% Weight Lb 127 184 , 236 . 288 346 181 223 293 358 424 194 / 267 343 443 512 207 294 390 478 566 . 905