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DEL GAL. @ 100° F RISE 199 RECOVERY GPH@ DEGREE RISE 40° F 100° F 140° F 366 147 105 80W-199SD-XA 190,000 BTUH 240 461 184 132 80W-250SD-XA 235,000 BTUH 284 570 228 163 100W-250SD-XA 235,000 BTUH 297 570 228 163 80W-399SD-XA 375,000 BTUH 420 909 364 260 80W-450SD-XA 425,000 BTUH 468 1030 412 294 80W-505SD-XA 475,000 BTUH 517 1152 461 329 To order Natural Gas use an "NA" suffix. To order LP use an "XA" suffix. *80% Thermal Efficient +Low NOx Burner Available Model 66W-399 Not Available in LP Model 75HN is not approved for 180 F. No spark ignition or damper or NSF construction. These models meet or exceed the Thermal Efficiency and Standby Loss Requirements of ASHRAE 90.1b current standard. 115V A.C. Required T&P Valve, Brass Drain Valve, Dielectric Fittings, Magnesium Anode Rods: Factory Installed Pressures (all): Working Pressure, 150 psi; Tested Pressure, 300 psi Warning: Installation should be in accordance with all national and/or local codes. In the absence of local codes, refer to NFPA 54 or ANSI Z21.10.1. Caution: The recommended maximum hot water termperature setting for normal residential use is 120°F. Bock recommends a tempering valve or anti-scald valve be installed and used according to the manufacturer's directions to prevent scalding. 110 South Dickinson Street, Madison, Wisconsin 53703 Toll Free 800.794.2491 • Phone 608.257.2225• Fax 608.257.5304 80019 Rev 6/08...