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Manafacture: A.O. Smith File size: 222.36 kb File name: ad247b81-767d-4d40-8dc7-9a0a4aac0126.pdf Language of manual:

™ CATEGORY IV LISTED • Requires AL29-4C gas tight rust resistant venting material PROFESSIONAL START-UP SERVICE FURNISHED • Assures optimum performance for each installation MEETS ASHRAE/IESNA 90.1-1999 5 YEAR HEAT EXCHANGER WARRANTY • For complete information, consult written warranty or contact A. O. Smith OTHER VF™BOILER FEATURES: • ASME 160# W.P. • ASME PRESSURE RELIEF VALVE 125# • FACTORY MOUNTED FLOW SWITCH • MEETS CSD-1 CODE-–FACTORY STANDARD • BRASS DRAIN VALVE • LOW GAS PRESSURE SWITCH • DIGITAL INLET/OUTLET TEMPERATURE READ OUT • MANUAL RESET HI-LIMIT • ALL BRONZE FACTORY MOUNTED PUMP VF™ BOILER APPROVED OPTIONS: . SEQUENCING PANEL . ALARM BELL . SIDEWALL VENT KITS . VERTICAL AND HORIZONTAL DIRECT VENT KITS . SKID-MOUNTED SYSTEMS . DRY CONTACTS FOR ANY BOILER FAILURE . LOW WATER CUTOFF . LP GAS . CUPRO-NICKEL HEAT EXCHANGER TUBES UP TO 88% EFFICIENT, HOT WATER SUPPLY BOILER WITH MODULATING FIRE 4:1 TURNDOWN VERSATILE MULTI-VENTING CONFIGURATIONS DIRECT-VENTING SIDEWALL VENTING CONVENTIONAL VENTING Please consult latest edition of the Installation Manual for detailed venting information and maximum/minimum venting distances. (78) 1,371 2,056 2,741 Model No. VW-500 VW-750 VW-1000 Input Rating Btu/hr 500,000 750,000 1,000,000 Water Flow GPH LPH GPH LPH GPH LPH RECOVERY CAPACITIES Temperature Rise - °F (°C) 40 60 80 90 100 120 (22) (33) (44) (90) (56) (67) 1,268 845 634 563 507 423 4,797 3,198 2,399 2,132 1,919 1,599 1,901 1,268 951 845 761 634 7,196 4,797 3,598 3,198 2,878 2,399 2,535 1,690 1,268 1,127 1,014 845 9,595 6,397 4,797 4,264 3,838 3,198 NOTE: Maximum gas supply pressure: 11. W.C. natural gas, 13.8. propane Minimum gas supply pressure: 4. W.C. natural gas, 8. propane Electrical Power: 120 Volts, 60 Hertz, 30 Amps. Page 2 of 4 ACGSS02307 VW MODELS - FLOW, HEAD LOSS AND TEMPERATURE RISE 20F° (11°C) ^T 30F° (17°C) ^T 40F° (22°C) ^T Maximum Flow Rate Minimum Flow Rate Model GPM LPH ^P FT ^ PM GPM LPH ^P FT ^ PM GPM LPH ^P FT ^ PM GPM LPH ^P FT ^ PM ^ T°F ^ Pm GPM LPH ^P FT ^ PM ^ T°F ^ Pm VW-500 42 159 1.8 0.5 28 106 1.3 0.4 21 79 1 0.3 100 379 3.8 1.2 8 4 21 79 1 0.3 40 22 VW-750 63 238 2.9 0.9 42 159 2.1 0.6 32 121 1.8 0.5 110 416 4.3 1.3 12 7 32 121 1.8 0.5 40 22 VW-1000 85 322 3.9 1.2 56 212 2.8 0.9 42 159 2.3 0.7 120 454 4.9 1.5 14 8 42 159 2.3 0.4 40 22 NOTE: Head loss shown is through boiler only and allows for no additional piping Dimensions and Shipping Weights Model # A B C D Approx. Shipping Weight (Lbs.) VW-500 56 22 36 45 450 VW-750 62 28 42 51 575 VW-1000 71 34 48 59 750 Please note this product specification sheet is intended to assist with product selection. For the most current product installation and design instructions, please see the latest edition of the Instruction Manual available at or call your local A. O. Smith Sales Representative for assistance. Page 3 of 4 ACGSS02307 ™ UP TO 88% EFFICIENT, HOT WATER SUPPLY BOILER WITH MODULATING FIRE 4:1 TURNDOWN SUGGESTED SPECIFICATION The gas-fired hot...

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