Electrical System Requirements

NOTICE:All wiring must conform to local codes or the latest edition of National Electrical Code ANSI/NFPA 70.

!WARNING: Any wiring outside of the house should be rated for the appropriate weather conditions.

If the system is being used as a pre-heater to an existing water heater, the electrical review and installation may not be required.

A 240 Volt electrical breaker with appropriate amp rating is required to activate the Backup Heating Element located near or as part of the main circuit breaker/fuse panel.

The manufacturer’s warranty does not cover any damage or defect caused by installation, attachment or use of any type of energy saving or other unapproved devices (other than those authorized by the manufacturer) into, onto or in conjunction with the water heater. The use of unauthorized energy saving devices may shorten the life of the water heater and may endanger life and property.

The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such

unauthorized devices.

Check the availability of a 240-volt, and an appropriately sized electrical breaker. A separate branch circuit with copper conductors, overcurrent protective device and suitable disconnecting means must be provided by a qualified electrician. If the breaker is not available, mark a location for a separate breaker.

When replacing an existing electric water heater see the chart on page 14.

The voltage requirements and wattage load for the water heater are specified on the rating plate on the front of the water heater.

The branch circuit wiring should include either:

•Metallic conduit or metallic sheathed cable approved for use as a grounding conductor and installed with fittings approved for the purpose.

•Non-metallic sheathed cable, metallic conduit or metallic sheathed cable not approved for use as a ground conductor shall include a separate conductor for grounding. It should be attached to the ground terminals of the water heater and the electrical distribution box.

Electrical Schematic

Weatherproofed

Roof-Mounted 2-Pole,

20-Amp Rated Switch Disconnected

Hot Return to

House

Weatherproofed

Roof-Mounted 2-Pole,

20-Amp Rated Switch

Disconnected

Roof Line

Cold Supply to Water

Heater

Circuit Breaker

Old Water Heater

Electrical Junction Box

240 Volt, 20 AMP Supply Breaker Using No. Main Supply Panel 12 Wire(Copper) MinimumSee the table on

page 14 for additional information.

Auxiliary Thermostatically Controlled Electric Back-Up 220/240 Volt/2.4 kW

Tank-Mounted

Thermostat 220/240

Volt D.P.S.T.

240 Volt, With Ground Supply Using 12 Ga.Wire (Copper) Minimum Depending on Amp draw. - See the table on page 14 for additional information.

RS47-21BP, RS80-42BP specifications

The Rheem RS47-21BP and RS80-42BP are innovative water heater solutions designed to meet the diverse needs of modern households. These models incorporate advanced technologies to enhance efficiency, performance, and user convenience.

The Rheem RS47-21BP is a 47-gallon heat pump water heater that provides a strong balance between performance and energy savings. One of its standout features is its impressive energy efficiency rating. This model utilizes heat pump technology harnessing ambient heat from the air to heat water, drastically reducing energy consumption compared to traditional electric water heaters. This results in lower utility bills and a smaller carbon footprint, making it an environmentally conscious choice.

On the other hand, the RS80-42BP is a larger 80-gallon heat pump water heater suitable for families with higher hot water demands. It offers a similar energy-efficient operation as the RS47-21BP but with an increased capacity. This model is perfect for households that require a reliable supply of hot water for multiple simultaneous uses, such as showers, dishwashing, and laundry. The unit's size is designed to cater efficiently to larger families or higher demand scenarios, making it an ideal choice for busy homes.

Both models are equipped with advanced smart technology, allowing the user to monitor and control the water heater remotely through a smartphone application. This feature provides real-time data on water usage and energy consumption, empowering users to manage their hot water needs proactively. Furthermore, the intuitive interface makes it easy to adjust settings, helping households maximize efficiency.

Additionally, Rheem has incorporated protective features in both models, including an intelligent self-diagnostic system that assists in troubleshooting. The LED display offers clear indications of operational status, making maintenance straightforward. Both units come with durable construction, designed to resist corrosion and prolong their lifespan.

Overall, the Rheem RS47-21BP and RS80-42BP represent the forefront of water heating technology, combining efficiency, smart technology integration, and ample capacity. These water heaters are not only reliable but also contribute significantly to energy savings, catering to both small and large household needs effectively.