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American Water Heater HPE10260H045DV, HPE10280H045DV manual Terms, Definitions and Formulas

Models: RESIDENTIAL HYBRID ELECTRIC HEAT PUMP WATER HEATER HPE10260H045DV HPE10280H045DV

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Terms, Definitions and Formulas

First Hour Rating (FHR) is a volume of hot water delivered by a water heater during a 1-hour, Department Of Energy mandate test procedure. The FHR is given in gallons or liters.

Energy Factor (EF) is an indicator of the combined thermal efficiency and standby efficiency of a water heater. The higher the Energy Factor, the more efficient the water heater will be.

Recovery rate is the amount of water, expressed in gallons per hour (GPH),heated to a given temperature rise. Residential water heaters are typically rated at approximately 90°F temperature rise. IE: A standard electric water heater with one 4.5 kW (kilowatt) electric heating element can produce 20 GPH at an approximate 90°F rise.

Temperature rise is the increase in the temperature from its coldest “inlet” water temperature to the desired hot “outlet” setting.

Standby efficiency relates to the ability of the product to retain the stored heat (Btu) while the heating source is not on. Insulation and other services are used to increase this efficiency.

Water (for all practical purposes) cannot be compressed.

Water expands when it is heated. The volume and pressure of water increases when it is heated in a closed system. IE: Water heated from 90°F to 140°F in a 40 gallon water heater will expand by approximately one- half gallon.

Minerals and gases will separate from water as temperature increases.

Amperage (Amps) (1 phase) = Watts divided by Volts (Ohm’s Law)

KW Required = (GPH X 8.25 X Temp. Rise X 1.0) divided by (3413)

Ohms = Volts divided by Amperes (Ohm’s Law)

One killowatt is equal to 1000 watts

One kilowatt is equal to 3,413 BTU

Recovery Rate =(KW X 3413) divided by (Temp. Rise X 8.25)

Rise (°F) = (KW X 3413) divided by (GPH X 8.25)

Supply electrical fusing and wiring or breakers should be sized at least 125% of expected heater amperage, per NEC and local codes.

Water weighs 8.25 pounds per gallon at 120°F

%of Hot water = (Mixed temp. - Cold) divided by (Hot temp. - Cold). This formula gives the number of gallons drawn from the water heater for each gallon delivered at a shower head or faucet. If the shower head flow rate (gallons per minute) is known, the draw efficiency and gallon capacity of the water heater may be used to calculate the length of the showering period in minutes.

Watt Density = the density of the wattage output of the element compared to the surface area of the element (i.e. “High Watt Density Element” will have the most wattage per square inch of element surface.

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American Water Heater HPE10260H045DV, HPE10280H045DV manual Terms, Definitions and Formulas
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RESIDENTIAL HYBRID ELECTRIC HEAT PUMP WATER HEATER, HPE10260H045DV, HPE10280H045DV specifications

The American Water Heater HPE10280H045DV and HPE10260H045DV are pioneering residential hybrid electric heat pump water heaters designed to deliver energy-efficient performance while meeting the hot water demands of modern households. These innovative units fuse traditional electric heating with advanced heat pump technology, allowing for significant reductions in energy consumption compared to conventional electric water heaters.

One of the primary features of these hybrid models is their outstanding energy efficiency ratings. Both units typically achieve an impressive Energy Factor (EF) that reflects their ability to convert electricity into hot water. By utilizing ambient air to heat water, these heat pump water heaters pull in heat from the surrounding environment and transfer it to the water, thus consuming less electricity. This technology not only reduces energy bills but also decreases the overall carbon footprint of the home.

The HPE10280H045DV and HPE10260H045DV boast a sleek, compact design that allows for flexible installation options, making them suitable for various locations within a home. Their user-friendly digital interface provides homeowners with intuitive controls to manage temperature settings and monitor performance. These models are equipped with smart technology that includes an intuitive display for adjusting modes and settings. They feature selectable operating modes, including electric, heat pump, and hybrid, allowing users to choose the most efficient heating method based on current needs.

In terms of capacity, the HPE10280H045DV offers a substantial 80-gallon tank, while the HPE10260H045DV provides a 60-gallon capacity, ensuring that households of different sizes can enjoy ample hot water for showers, laundry, and dishwashing simultaneously. Both models are designed with durability in mind, featuring robust components and corrosion-resistant tanks that promise longevity and maintenance-free operations.

Another significant aspect of these hybrid water heaters is their whisper-quiet operation, which makes them ideal for installation in living spaces or areas close to bedrooms. The noise level is minimized by the efficient insulation and placement of the compressor, ensuring that the serenity of the home is maintained.

In summary, the American Water Heater HPE10280H045DV and HPE10260H045DV represent a leap forward in the water heating industry, combining innovative heat pump technology with user-friendly features, energy efficiency, and ample capacity, making them an excellent choice for environmentally conscious homeowners looking for reliable hot water solutions.