A.O. Smith ENT-30+, ENT-40+, ENT-50+, ENT-55+, ENSB-30 User Manual

COMMERCIAL-GRADE

RESIDENTIAL ELECTRIC WATER HEATERS

PROLINE® STANDARD

COMMERCIAL-GRADE RESIDENTIAL

ENHANCED HEATING ELEMENTS

•Dual 4500 watt elements for fast recovery and reliable operation.*

•Incoloy stainless steel lower element lasts longer than a standard copper element.

DYNACLEAN™ DIFFUSER DIP TUBE

•Helps reduce lime and sediment buildup and maximizes hot water output. Made from long-lasting PEX cross-linked polymer (diffuser design is not used on lowboy models.)

HIGH ENERGY FACTORS

•Eco-friendly non-CFC foam insulation, heat traps and other features combine to yield a higher Energy Factor that maximizes savings on operating costs.

COREGARD™ ANODE ROD

•Our anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection far longer than standard anode rods.

BLUE DIAMOND® GLASS COATING

•Provides superior corrosion resistance compared to industry standard glass lining.

ENHANCED-FLOW BRASS DRAIN VALVE

•Our residential water heaters have a solid brass, tamper resistant, enhanced-flow, ball type, drain valve.

•Uses a standard female hose fitting that allows for fast and easy draining during maintenance.

•Designed for easy operation, this valve includes an integral screwdriver slot that features a ¼ turn (open/close) radius, which not only permits full straightthrough water flow but also a quick and positive shut off.

CODE COMPLIANCE

•Meets UBC and ICC National Codes and listed with CEC.

•Complies with the Federal Energy Conservation Standards effective April 16, 2015, in accordance with the Energy Policy and Conservation Act (EPCA), as amended.

APPROVED FOR MANUFACTURED HOUSING

•All residential electric water heaters are compliant with HUD Standards for mobile homes/manufactured housing.

CERTIFIED TO UL 174 FOR HOUSEHOLD ELECTRIC WATER HEATERS

CSA CERTIFIED AND ASME RATED T&P RELIEF VALVE

DESIGN-LISTED BY UNDERWRITERS LABORATORIES

•Certified at 300 psi test pressure and 150 psi working pressure.

•Listed according to UL 174 standards governing storage tank-type electric water heaters.

6-YEAR LIMITED TANK AND PARTS WARRANTY

•For complete information, consult written warranty or go to hotwater.com.

*Model ENL-20 has a single element.

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