Rheem HP40RU, HP50RU Operating the water heater, Safety Controls, Water Temperature Setting

Models: HP50RH HP50RU 92-103234-02 HP40RU AP15121-1

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Safety Precautions

Operating the water heater.

CAUTION: Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE!! To dissipate such gas and to reduce risk of injury, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system. If hydrogen is present, there will be an unusual sound such as air escaping through the pipe as the water begins to flow. Do not smoke or use an open flame near the faucet at the time it is open.

Do turn off power to water heater if it has been subjected to over heating, fire, flood, physical damage.

Do Not turn on water heater unless it is filled with water.

Do Not turn on water heater if cold water supply shut-off valve is closed.

If there is any difficulty in understanding or following the Operating Instructions or the Care and Cleaning section, it is recommended that a qualified person or serviceman perform the work.

WARNING: If the water heater has been subjected to flood, fire, or physical damage, turn off power and water to the water heater.

Do not operate the water heater again until it has been thoroughly checked by qualified service personnel.

Safety Controls

The water heater is equipped with a temperature limiting control (ECO) that is located above the upper heating element in contact with the tank surface. If for any reason the water temperature becomes excessively high, the temperature limiting control (ECO) breaks the power circuit to the heating element. Once the control opens, it must be reset manually.

CAUTION: The cause of the high temperature condition must be investigated by qualified service technician and corrective action must be taken before placing the water heater in service again.

To reset the temperature limiting control: (Refer to Illustration on page 21):

Turn off the power to the water heater.

Remove the plastic housing.

Remove the jacket access top panel and insulation.

Press the red RESET button.

Replace the insulation and jacket access panel before turning on the power to the water heater.

!DANGER: There is a hot water scald potential if the thermostat is set too high. Households with small children, disabled, or elderly persons may require a 120°F or lower thermostat setting to prevent contact with

HOT water.

Water Temperature Setting

The temperature of the water in the water heater can be regulated by pushing the up or down arrow on the keypad located behind the access panel.

Safety and energy conservation are factors to be considered when selecting the water temperature setting of the water heater. The lower the temperature setting, the greater the savings in energy and operating costs.

To comply with safety regulations the temperature is factory set at 122°F or less where local codes require. This is the recommended starting point.

Water temperatures above 125°F can

cause severe burns or death from scalding. Be sure to read and follow the warnings outlined in this manual and on the label on the water heater. This label is located on the water heater near the electronic control access panel.

Mixing valves for reducing point of use water temperature by mixing hot and cold water in branch water lines are available. Contact a licensed plumber or the local plumbing authority for further information.

The chart on the next page may be used as a guide in determining the proper water temperature for your home.

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Rheem HP40RU, HP50RU, HP50RH, AP15121-1, 92-103234-02 Operating the water heater, Safety Controls, Water Temperature Setting

HP50RH, HP50RU, 92-103234-02, HP40RU, AP15121-1 specifications

The Rheem AP15121-1, HP40RU, 92-103234-02, HP50RU, and HP50RH are central components in Rheem's commitment to providing high-quality water heating solutions. These models represent some of the company’s efficient and technologically advanced offerings designed to meet diverse residential and commercial water heating needs.

One of the standout features of these models is their high energy efficiency, which is critical for reducing operational costs and environmental impact. Many of these units are equipped with advanced energy-saving technologies that comply with stringent energy regulations, ensuring they operate effectively while minimizing energy consumption. For instance, some models have been certified with Energy Star ratings, which guarantees they meet high-energy efficiency standards.

The Rheem HP40RU and HP50RU units are particularly noted for their robust performance, offering capacities of 40 and 50 gallons, respectively. This makes them suitable for households with varying hot water demands, from small families to larger households. The design of these tanks allows for efficient heat retention, which means less energy is required to maintain the desired water temperature.

Additionally, the Rheem AP15121-1 offers technology that integrates smart features, such as Wi-Fi connectivity, enabling users to monitor and manage water heating systems through mobile applications. This feature enhances convenience and provides insights into usage patterns, allowing for better energy management.

In terms of safety and durability, these Rheem models are designed with advanced safety mechanisms, including automatic shut-off features and high-quality materials to prevent leaks and corrosion, prolonging the unit's lifespan. The 92-103234-02 model incorporates a professional-grade design focused on long-term reliability, which is essential for commercial environments.

Another significant characteristic of these models is their user-friendly interfaces and straightforward installation processes, which can minimize installation times and simplify maintenance. Many units come with comprehensive warranties, reflecting Rheem's confidence in their products and providing peace of mind for consumers.

Overall, the Rheem AP15121-1, HP40RU, 92-103234-02, HP50RU, and HP50RH bring a blend of efficiency, reliability, and innovative technology, making them ideal choices for anyone in the market for a durable and effective water heating solution. Whether for residential or commercial needs, these models uphold Rheem's esteemed reputation in the water heating industry.