A.O. Smith AOSRE50400 User Manual

Residential Electric Water Heaters

MEETS ENERGY-EFFICIENCY REQUIREMENTS FOR MOST ELECTRIC UTILITY REBATE PROGRAMS

“Environmentally-Friendly” Non-CFC foam insulation, external heat traps and other energy-saving features yield higher energy factors, which meet California Title 24 requirments as well as qualify for most utility rebate programs.

DYNACLEAN™ DIFFUSER DIP TUBE

Helps reduce lime and sediment buildup, while maximizing hot water output. Made from long-lasting PEX cross-linked polymer.

PERMAGLAS® GLASS COATING

Protects steel tank from corrosion.

COREGARD™ ANODE ROD

Aluminum anode with stainless steel core protects tank against corrosion longer than ordinary steel anodes.

CSA/ASME CERTIFIED SIDE-MOUNTED T&P RELIEF VALVE

Side-mounted T&P relief valve is standard; top-mounted T&P relief valve is available on select models.

DURABLE TAMPER-RESISTANT BRASS DRAIN VALVE

LONG-LASTING LOW-WATT DENSITY COPPER LOWER HEATING ELEMENT

Upper element is high-watt density copper.

CODE COMPLIANCE

Meets Minimum Energy Standards effective January 20, 2004, according to the current edition of the Nation Appliance Energy Conservation Act (NAECA) of 1992. Also meets the standby loss requirements of the U.S. Department of Energy and Current Edition of

ASHRAE/IESNA 90.1, ICC Codes and HUD Standards.

CERTIFIED TO UL 174 FOR HOUSEHOLD ELECTRIC WATER HEATERS

6-YEAR LIMITED TANK AND PARTS WARRANTY

For complete information consult written warranty or A. O. Smith.

UPGRADE TANK WARRANTY TO 10 YEARS

See model number details on page 2.

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AOSRE50200

Residential Electric Water Heaters

DIMENSIONS IN INCHES

A B C

APPROX.

SHIPPING

WEIGHT

MODEL

NUMBER

FIRST HOUR

RATING

GALLONS

ENERGY FACTOR

GAL. CAP.

ELEMENT WATTAGE

240 VAC

STANDARD MAXIMUM

RECOVERY

90ºF RISE

GALLON

PER HOUR

VALUE

TALL MODELS

ECRT-40 54 .93 40 4500 6000 21 20 60 19 53-1/2 114

ECRT-52*

ECRT-66

ECRT-80*

60 .93 50 4500 6000 21 20 56-1/2 21-1/2 47-1/2 126

76 .92 66 4500 6000 21 20 61 23 53 165

87 .93 80 4500 6000 21 20 61-1/2 25 52 191

SHORT MODEL

ECRS-50

Recovery capacity based on actual performance tests. For 10-year tank warranty, change “E” to “P” in model number (PCRT-40). * Models not available with top T&P Relief Valve.

62 .93 50 4500 6000 21 20 49 23 40-1/2 127

CONNECTION

HOT

ANODE ROD

COLD CONNECTION

(LBS)

For Technical Information and Automated Fax Service, call 800-527-1953. A.O. Smith Corporation reserves the right to make produ ct changes or improvements without prior notice.

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AOSRE50200