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Z;� � Dura-Power <br /> � � i OD o �RO❑ L��7 OO COMMERCIAL ELECTRIC WATER HEATERS <br /> Designed for use as a recovery heater having its own DEN & DEL MODELS <br /> storage tank. Available in upright standard models <br /> (DEM and lowboy models(DEL). <br /> Meets or exceeds the requirements of ASHRAE 90.1-1999 <br /> FEATURES <br /> Standard for energy efficiencies. <br /> GLASS-LINED TANK-Thirteen sizes; 6 thru 119 gallon <br /> �----" <br /> capacity. Tank interior is coated with glass specially See page C 029.0 for service wiring and fuse selection. <br /> developed by A. O. Smith Ceramic Research for water <br /> heater use. Tanks rated 150 psi working pressure;tested <br /> at 300 psi. Foam insulation provides maximum energy <br /> savings by minimizing radiant standby heat loss. <br /> ELEMENTS-Zinc plated copper sheaths for longer life. <br /> Medium watt density; means lower surface temperature Ae <br /> to minimize scale build-up and more surface to heat water. r' MOM <br /> Ga <br /> Element sizes from 1.5 to 6 KW. Maximum input 12 KW <br /> (see chart on back). +, 1•L.1 W <br /> STANDARD VOLTAGES-120,277 single phase and 208, <br /> 240 and 480V unbalanced three-phase delta; easily <br /> converted to single-phase at terminal block(except 208V <br /> with 6000 watt elements). Single element heater, single- =Y. <br /> phase only. <br /> TERMINAL BLOCK- Factory installed. Just bring the <br /> service to heater and connect to block. Terminal blocky <br /> not supplied on 120V&277 volt models. <br /> CONTROLS-Temperature control (adjustable through a <br /> range of 1100to 170°Fon single element and 1200to 180°F <br /> on dual element)and manual reset high temperature cutoff <br /> per element(dual element models). Factory wired for non- <br /> simultaneous operation;easily converted to simultaneous <br /> element operation(three phase models only). <br /> OPTIONAL a <br /> GOLDENROD ELEMENTS-All DEN &DEL models are <br /> available with the Goldenrod 24K gold plated elements <br /> (patent pending).Goldenrod elements provide long life and <br /> 6 times the scaling resistance of standard incoloy elements. <br /> Goldenrod elements carry a three year warranty against DEL MODELS DEN MODELS <br /> failure due to lime scale build-up. <br /> ELEMENT AVAILABILITY CHART LIMITED WARRANTY OUTLINE <br /> Input 120V 208V 240V 277V 480V If the tank should leak any time during the first three <br /> 1,500 YES YES YES YES — years,under the terms of the warranty,A.O.Smith <br /> 2,000 YES YES YES YES YES will furnish a replacement heater;installation,labor, <br /> handling and local delivery extra. THIS OUTLINE IS <br /> 2,500 YES YES YES YES YES NOT A WARRANTY. For complete information, <br /> 3,000 YES YES YES YES YES consult the written warranty or A. O. Smith Water <br /> r3,500 — — YES — — Products Company. <br /> 4,000 — YES YES YES YES <br /> 4,500 — YES YES YES YES <br /> 5,000 — YES' YES' YES` YES• OTHER STANDARD FEATURES <br /> 5,500 — — YES' — — • Factory installed T&P AGA/ASME relief valve <br /> 6,000 — YES- YES YES YES -Simplified circuitry,color coded for ease of service <br /> NOTE:DEL-6 not available in above 2.5 KW. •Anode rod for maximum corrosion protection <br /> DEL-6 not available in 480V. • Cabinet has bonderized undercoat with baked enamel finish <br /> Not available in DEL-10,DEL-15 and DEN-30. •Top inlet and outlet openings • Drain valve <br /> "A6 non-simultaneous circuit only. • UL approved field conversion program. <br /> June 20078 AC ESS00307 <br />