A.O. Smith HPTU-50N User Manual

Residential Electric Water Heater

VOLTEX® HYBRID ELECTRIC HEAT PUMP WATER HEATER

The Voltex Hybrid Electric heat pump water heater from A. O. Smith is the most cost effective energy-efﬁcient option available for consumers who want to save money on their utility bills. Voltex can reduce water heating costs up to 71% and provide payback in 2-3 years. With annual savings of $437 or more, there is no better way to go green than Voltex.

HOW DO THEY WORK?

Absorb ambient heat from the surrounding air to heat water using a compressor and “Environmentally-Friendly” R134a refrigerant

• Self-contained heat pump unit is integrated into the top of the tank

• Multiple operating modes to maximize efﬁciency and performance

QUALIFIES FOR MANY STATE AND LOCAL UTILITY REBATES CHECK WWW.DSIREUSA.ORG

INCREASED ENERGY EFFICIENCY

• Improved efﬁciency designed in, to ensure available hot water at the lowest possible cost. Up to a 3.24 Energy Factor (EF) Rating conserves energy and meets ENERGY STAR® qualiﬁcations

CHOICE OF OPERATING MODES

• Select from Efﬁciency, Hybrid, or Electric modes to match heating requirements to environmental conditions.

• Hybrid mode automatically adjusts between compressor and element, depending upon heat requirements.

• Vacation mode reduces operating costs and provides freeze protection during extended absence

BACKUP ELECTRIC ELEMENTS

• Long-lasting backup heating elements help heat water according to environmental conditions, demand, and the chosen operating mode

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

• 66 and 80 gallon models have dual anodes for added protection.

DRY FIRE PROTECTION

• Control system checks to ensure the tank is full of water during start up to prevent dry ﬁring the heating elements

ELECTRONIC USER INTERFACE

• User-friendly electronic interface allows easy control of temperature setting, operating mode, and communicates diagnostics

• Easy to read temperature display (see back) shows temperature in °F or °C

• Advanced diagnostics convey error messages for service purposes. The last four error messages are saved in the control system memory.

OTHER FEATURES

• Ideal for basements or garage installations; the compressor transfers heat to the water while dehumidifying and cooling the ambient air

• Washable air ﬁlter is easily removed for routine cleaning

OPTIONAL AIR DUCT ADAPTER KIT

• Permits installation in conﬁned spaces

TEN YEAR LIMITED WARRANTY

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

www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

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Residential Electric Water Heater

Model

Number

HPTU-50N 50 3.61 3.24 0.93 44.4 70 57.3 63 22 40-5/8 3-3/4 40-1/2 196 10

HPTU-66N 66 3.44 3.17 0.92 62.5 80 78.6 61 27 38 4 38 289 10

HPTU-80N 80 3.27 3.06 0.92 76.3 95 90.1 69 27 46 4 46 307 10

Requires 30 amp breaker. Top T&P option not available.

Gallon

Capacity

Energy Factor by Mode 1st Hour Rating (Gal) By Mode Dimensions in Inches Approx.

Efﬁciency Hybrid Electric Efﬁciency Hybrid Electric A B C D E

Shipping

Weight (lbs)

ELECTRONIC USER INTERFACE

• User friendly, easy to read display.

• LEDs clearly indicate the current operating mode.

• Easily select operating mode:

• Efﬁciency

• Hybrid

• Electric

• Vacation

• Display communicates current status, mode and set point, and displays error messages when applicable.

EFFICIENCY MODE

• Utilizes the heat pump for all water heating.

• Automatically reverts to heating element if ambient air or water temperatures are outside optimal operating range for heat pump.

HYBRID MODE

• Utilizes the heat pump or heating element, depending on demand.

ELECTRIC MODE

• Standard electric water heater operation.

VACATION MODE

• One touch operation maintains tank temperature of 60°F (15.6°C) during vacation or extended absence to reduce operating costs and provide freeze protection.

• Programmable up to 99 days.

OTHER FEATURES:

• Sacriﬁcial anode to protect against tank corrosion.

• Environmentally-friendly non-CFC foam insulation.

• Durable, enhanced-ﬂow brass drain valve.

• CSA certiﬁed and ASME rated temperature & pressure relief valve.

OPERATING REQUIREMENTS:

• Requires provision for condensate draining; if a suitable drain is not available, a condensate pump is required.

• 208/240 VAC 60Hz single phase 30 amp power supply.

Warranty

Term

For Technical Information, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

www.hotwater.com | 800-527-1953 Toll-Free USA

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