Document gaNYDmnda8ewgnDM1Gov6xY33

Air Conditioning Direet-Fired Heaters Arthur A. Olson & Company Canfield, Ohio Manufacturers of Direct Fired Heaters A completely automatic direct-fired'unit heater. Olson heaters operate on gas, oil, dual gas-oil or coal. These units may be hung, suspended horizontally or inverted. All heaters can be adapted to filtering, humidifying and air conditioning Use of standard accessories and easy access to bearings and other vital parts simplify main tenance. Also special adaptions for make-up air, drying, high-temperature and process work. 1. Standard 10 Gage Boiler Tube Heat Transfer Surfaced 2. Stainless Steel or Refractory Combus tion Chamber. 3. Heavy Duty Fans and Shaft. 4. Inlet Screens or Frame for Filter Box. 5. Adjustable, Deflecting Outlets. 6. Separate Induced Draft Fan. 7. Bearings Outside Heater at End of Shaft. Four Pass Gas Travel-Counter Current. Engineering Data--Gas, Oil, or Dual Gas-Oil Heaters. Heater Model Number U-300 U-400 U-600 U-600 U-750 IT-1000 U-1250 U-1500 U-1750 U-2000 BTU/HR Output Capacity 300,000 400,000 500.000 600,000 750,000 1,000,000 1,250,000 1,500,000 1,750,000 2,000,000 CFM Blowing Fans 3,500 4,500 5,500 7,000 8,500 11,000 14,000 17,000 20,000 22,000 A 3'- \m 3'- 1* 3'- l" 3'- 1* 3'- 8* 3'- 8* 4'- 4' 4 - 4' 4 M0* 4M0* General Dimensions B 2M1* 3'- 7* 4'- 3' 4M1* 5'- 3' 5M1* 7'- 0* 8'- 0' 8'- 0* 9'- 0* C 7M0* 7M0* 7'- 3* V- 3* 8'- 9* r8-'- 9* 9* 9'- 9* 10'- 9* 10'- 9* Cl r-i* I'-l* l'-3* r-i* im* i#-*' l'-5* l'-S* lr'--66** D r- 6* rr--67** r- 7* r- 8* r1-Mii1** 2'- 0* 2'- 1* r-1* No. of Blow ing Fans 1 1 2 2 2 2 2 2 2 2 Motor HPs Blow ing Fans 1 IK 2 3 3 5 7H 10 15 15 Stack Dia. 8* 8* 8* 8* 8* 10* 10* 12* 12* 12* No. of Nos ale Out lets 2 3 3 4 4 4 4 5 5 5 Write for complete data on stoker fired units and large central systems.. 1150 Air Conditioning Uni* Better, Automatic Gas Equipment Company Brushton and Thomas St., Pittsburgh 21, Pa. Manufacturers of Pittsburgh Gas Unit Heaters and Duct Furnaces Cast Iron Heating Elements Cast iron is considered to be the best material to withstand the corrosive effects of the products from combustion of gases. For this reason, both the heat exchanger and combustion cham ber in a Pittsburgh Gas Unit Heater are made of cast iron. Furthermore, they are cast in one piece and the ex tended heating surface fins on the heat exchanger are cast integral. Pittsburgh Gas Unit Heaters have been designed to consume exactly the right amount of air to support complete combustion but without permitting an excess of air to lower heating efficiency. This is accomplished by means of a built in draft hood which absorbs all excessive chimney action and thereby conserves heat. The heater does not depend upon forced draft from the fan for either the primary or secondary air supply. For this reason there is no possibility of variation in the air supply to the burners resulting from changes in fan speed or louver adjustment. By the use of adjustable horizontal louvers, warm air can be directed to any desired level. Safety Features A tested and proved safety pilot is used on these heaters to automatically turn off the gas if the pilot light goes out or if it burns too low to insure posi tive ignition. The draft diverter is absolute protection against any possible down drafts through _ the chimney. Write for folder containing complete details, including installation measure ments.^ Approved by American Gas Associa tion and Underwriters' Laboratories. Cutramay view of heater, showing the easti' iron heat exchanger tn place. Heat exchanger end combustion chamber.% SIZES AND CAPACITIES (also made in five sizes in Blower Type Units)'- Unit No. 215 C 175 C 160 C 140 C HOC 85 C Input B.T.U. Per Hour 215j000 175.W0 160,000 140,oar 110,000 85,000 Output--AGA B.T.U. Per Hour 172,000 140,000 128,000 112,000 88,000 68,000 Sq. Ft. EJ>.R. 744 605 553 484 ' 381 294 Air Del. C.F.M. 3500 2900 2600 2320 1820 1350 Motor H.P. 1 i A1*0 9*0 Speed R.P.M. 1140 1140 860 860 860 1000 AA ^yrox"^J 525 ? 475 7 450. a 400 M 350 - i 300 * 1151