Document r6DpM2gzBxKXyn9MJLywXV9kq

Healers, Unit 2441-45 CHARLOTTE STREET KANSAS CITY,MO. An E. K. Campbell Company The Thermidaire Heating Element is manufactured with a special process of fusing copper, enabling the entire unit to be built with it, thus eliminating internal expansion and con traction strains, and giving freedom from trouble. The joints have great strength. Numerous tests to 1200 lbs. hydrostatic pressure have shown no weaknesses. Production since early 1929 for higher steam pressures has developed no troubles or leaks. Type PF units are manufactured with all rolled-copper heating elements guaranteed for 100 lbs. steam working pressure. For the Type CF units and higher steam pressures in the Type PF units a special all copper construction is used, which is guaranteed for 200 lbs. steam . working pressure. Type PF The following ratings are at 60 entering tem perature and 5 lbs. steam pressure at the heater: TYPE PF Unit No. 4 5 8 10 14 15 20 24 25 30 40 50 R. P. M. 1750 1150 850 1150 1150 850 1150 1150 8S0 1150 850 1150 C. F. M. 400 500 800 1000 1450 1500 2000 2450 2500 3000 4000 5000 ' B.T.U. 33,100 43,500 72,000 84,000 117.800 134,800 168,000 181,800 210,000 224.000 336,000 372,000 TYPE CF Unit No. 162 183 184 302 303 R. P. M. 1750 1750 1750 1150 1150 C. F. M. 3,000 4,500 6,000 8,000 12,000 Complete data furnished on request. B. T. U. 225,600 350,400 475,200 533,760 801,600 668 Heaters, Unit The Unit Heater and Cooler Co. Wausau, Wisconsin Offices in Principal Cities MANUFACTURERS OF THE GRID UNIT Sturdy--Permanent THE GRID UNIT (A Product of the D. J. Murray Mfg. Co.) Heating Element is composite casting of close grained grey iron and aluminum alloy. Steam chamber is gray iron capable of withstanding highest pressures ordina rily used on heating systems, while the alloy fins are of light weight and cast integral with the iron center. Fewjoints; none brazedj welded or soldered. The Manifold is a grey iron casting with lugs for attaching. supporting rods, thus taking all strains off connections between manifolds and heating elements. The Casing or Cabinet is made of pressed sheet steel, securely attached to manifold. Will.not rattle. . Cooling arid Refrigerating. The Grid Unit is adapted for the circulation of cold water, sodium or calcium brine,^by direct connections to refrigerant - pipe lines. Direct Expansion ammonia may be used with safety.:. The Grid Unit is attractive, compact, light in weight, strong, safe and efficient. Heating element affords unrestricted flow of air and permits a large volume at a moderate temperature. The Grid Unit is constructed for con stant use with minimum attention. Able to handle a large volume of air and give it a relatively small temperature rise. Ex tremely high temperature in air leaving the heater is avoided. Circulates large volume of air and distributes it evenly to all parts of the building. Performance and construction-guaran teed. The Grid Unit may be suspended from a pipe line, or from rods to truss or rafters. Both methods may be used at the same time. Typical Installation of Grid Unit Heater GRID DATA O' Z Dimensions o 2 AB c D ^Delivers More Warm Air to Floor and Working Zone" Face Area Motor V Sq. Ft. Hp. R.p.m. Capacities 5 lb. Pres. 60 deg. 5 mlB.t.o. Sq. Ft. Rad. i Velocity I C.f.m. Net Weig Shipping Weights | Pipe Sizes Sup. Outlet 15 22 18 11% 20 ,.36 { 1/10 1750 1/20 1150 20 27 '/, 11% 21% 2.78 | 1/6 1/10 1150 850 1700 1200 3000 2400 1100 76080 770 53280 1100 136000 880 .108800 }317 222 * 200 250 ,% % 566 450 J 200 250 350 2 1 25 32 281/2 11% 28 434 { % % 1150 4700 1100 217300 850 3700 880 173950 906- J 300 725 500 500 2 1 30 38 33% 13% 29 6.25 { i% % 1150 8200 850 6600 1300 382500 1050 306000 1600 1280 } 450 700 800 2% i% 669