rheem tankless water heater manual

Installation Requirements and Recommendations

Proper installation ensures safety and efficiency. Hire a licensed contractor, choose a suitable location, and follow venting guidelines to meet local codes and manufacturer specifications.

2.1 Licensed Contractor Installation

Installation of your Rheem tankless water heater must be performed by a licensed, state-qualified contractor trained in Rheem-specific systems. This ensures compliance with local codes, safety standards, and optimal performance. A licensed professional will handle complex tasks like venting, gas line connections, and electrical hookups. Proper installation prevents hazards and maintains warranty validity. Always verify a contractor’s credentials before proceeding with the installation to guarantee a safe and efficient setup.

• Ensure the contractor is licensed and experienced with tankless systems.
• Follow all local building codes and regulations.
• Proper venting and gas line installation are critical for safety.

2.2 Suitable Location for Installation

Selecting the right location for your Rheem tankless water heater is crucial for safety and efficiency. Install it in a well-ventilated, protected area away from flammable materials. Ensure the location is accessible for maintenance and not prone to freezing temperatures. Avoid installing near living spaces or areas with high humidity. Proper location ensures reliable performance and adherence to safety standards. Always follow local building codes and manufacturer guidelines for optimal placement.

• Choose a location with adequate ventilation.
• Ensure protection from freezing temperatures.
• Keep away from flammable materials and living spaces.

2.3 Venting Safety and Guidelines

Proper venting is essential for safe operation of your Rheem tankless water heater. Always use approved venting materials and configurations to prevent carbon monoxide buildup. Ensure vents are installed outdoors, away from windows and doors, and follow local building codes. Never use unapproved materials or configurations, as this can lead to safety hazards. Regularly inspect vents for damage or blockages and ensure they are free from obstructions. Proper venting ensures efficient performance and maintains safety standards.

• Use only approved venting materials and configurations.
• Install vents outdoors, away from windows and doors.
• Inspect vents regularly for damage or blockages.

Safety Precautions and Warnings

Always follow safety guidelines to ensure safe operation of your Rheem tankless water heater. Read all warnings carefully and avoid touching electrical components with wet hands.

• Never attempt repairs without turning off the power and gas supply.
• Keep the area around the heater clear of flammable materials.
• Ensure proper ventilation to avoid carbon monoxide buildup.

3.1 General Safety Information

Ensure safe operation by following all guidelines in this manual. Rheem tankless water heaters are designed for efficiency and safety when installed and maintained correctly.

• Always hire a licensed contractor for installation to prevent hazards.
• Properly vent the system to avoid carbon monoxide risks.
• Regularly inspect the unit and gas lines for leaks or damage.
• Keep the area around the heater clear of flammable materials.
• Never modify the heater or its components without authorization.

Adhering to these precautions ensures reliable performance and safety for years to come.

3.2 What to Do If You Smell Gas

If you detect a gas odor, take immediate action to ensure safety. Turn off the manual shut-off valve on the Rheem tankless water heater and do not operate any electrical devices nearby.

• Open windows for ventilation but do not use phones or electrical switches inside the building.
• Do not attempt to light any appliances or ignite the gas yourself.
• Contact a licensed contractor or gas supplier to inspect and repair any leaks or issues.

Addressing gas leaks promptly is crucial for preventing potential hazards and ensuring system safety.

3.3 Emergency Shutdown Procedures

In case of an emergency, follow these steps to safely shut down your Rheem tankless water heater. First, locate and turn off the manual shut-off valve to stop gas supply immediately.

• Switch off the electrical power to the unit at the circuit breaker.
• Do not operate any electrical devices or phones near the area.
• Open windows for ventilation if safe to do so.
• Contact a licensed contractor or gas supplier to inspect and resolve the issue.

Always prioritize safety and avoid restarting the unit until it has been professionally cleared.

Operating the Rheem Tankless Water Heater

Turn on the power and ensure the display shows proper indicators. Check water flow and temperature settings for optimal performance. Monitor operation in different modes.

4.1 Initial Setup and Preparation

Before operating, ensure the Rheem tankless water heater is properly installed by a licensed contractor. Check that all connections are secure and leak-free. Turn on the power and verify the display shows proper indicators. Familiarize yourself with the control panel and settings. Ensure the unit is preheated and protected from freezing if necessary. Read the manual thoroughly for specific instructions tailored to your model. Proper initial setup ensures efficient, safe, and reliable operation of your Rheem tankless water heater.

4.2 Understanding Modes of Operation

Your Rheem tankless water heater offers multiple operation modes to suit your needs. The default mode provides continuous hot water, while the energy-saving mode reduces standby heat loss. High-demand mode boosts output for simultaneous usage. Recirculation mode ensures instant hot water at fixtures. Familiarize yourself with these settings to optimize energy efficiency and performance. Refer to the control panel or manual for specific instructions on switching modes and customizing settings for your household demands.

4.3 Controls and Displays

The Rheem tankless water heater features an intuitive control panel with a digital display. This display shows the outlet temperature, error codes, and current operating mode. Use the buttons to adjust settings, select modes, or lock temperatures for safety. LED indicators provide status updates, such as active heating or system alerts. Familiarize yourself with these controls to monitor and adjust your water heater efficiently. Refer to the manual for detailed explanations of error codes and troubleshooting steps to ensure optimal performance.

Maintenance and Care

Regular maintenance ensures optimal performance and longevity. Flush the system annually, descale based on water hardness, and inspect components. Refer to the manual for detailed procedures.

5.1 Flushing and Descaling Instructions

Regular flushing and descaling are essential to maintain your Rheem tankless water heater’s efficiency. Use a Rheem-approved flush kit (e.g., RTG20124) to remove mineral buildup. Flush annually or more frequently in hard water areas. Ensure the power and gas are turned off before starting. Follow the manual’s step-by-step guide for a proper flush. Descaling may be needed if limescale accumulates, affecting performance. Always use recommended descaling solutions to avoid damage. Proper maintenance ensures optimal flow and prevents corrosion.

5.2 Regular Maintenance Tasks

Perform routine checks on your Rheem tankless water heater to ensure optimal performance. Inspect the air intake and venting systems for blockages. Check filters and clean them as needed. Verify that all connections are secure and leak-free. Ensure the temperature and pressure relief valve is functioning correctly. Schedule annual professional inspections to address potential issues early. Regular maintenance helps prevent corrosion, maintains efficiency, and extends the lifespan of your unit. Always follow the manufacturer’s guidelines for specific tasks and recommendations.

Troubleshooting Common Issues

Identify common problems like error codes, low water flow, or inconsistent temperatures. Check for blockages, gas leaks, or faulty sensors. Refer to the manual for solutions and reset instructions.

6.1 Identifying Common Problems

Common issues with Rheem tankless water heaters include error codes, low water flow, or inconsistent temperatures. Check for blockages in water lines or vents, and ensure proper gas supply. Faulty sensors or condensation issues may trigger error codes. Verify if the unit is properly sized for your household’s needs. If you smell gas, shut off the supply immediately and contact a licensed professional. Refer to the troubleshooting section in the manual for specific error code solutions and reset procedures.

6.2 Error Codes and Solutions

Rheem tankless water heaters display error codes to indicate specific issues. Code 11 often relates to gas valve problems, while code 12 may signal a burner issue. Codes 13 or 14 could indicate overheating or poor ventilation. Code 29 might point to a faulty flow sensor. For code 31, check the water filter for blockages. Always refer to the manual for detailed solutions. Resetting the unit or cleaning filters often resolves issues. If problems persist, contact a licensed technician for professional assistance to ensure safety and proper functionality.

Product Registration and Support

Register your Rheem tankless water heater via the QR code provided for warranty benefits and support. Contact customer service for troubleshooting or technical assistance.

7.1 How to Register Your Rheem Tankless Water Heater

To register your Rheem tankless water heater, locate the QR code provided in the manual or on the product. Scan the QR code to access the registration page.

Fill in the required details, including your contact information and product serial number. Submit the form to complete the registration process and ensure warranty activation.

Registration ensures you receive timely support, updates, and warranty benefits. Keep your registration confirmation for future reference.

7.2 Contacting Customer Support

For assistance with your Rheem tankless water heater, contact customer support via phone, email, or through the official Rheem website. Visit the support section for contact details.

Have your serial number and installation details ready when reaching out. This ensures prompt and effective resolution of any inquiries or issues you may have.