Welcome to our comprehensive guide on Rheem tankless water heater installation diagrams. Rheem Manufacturing is a renowned global leader in producing top-quality water heaters, including tankless water heaters. In this guide, we will provide you with all the necessary information to understand the installation diagram for Rheem tankless water heaters, ensuring a successful installation.
Key Takeaways:
- Understanding the mounting process is crucial for a secure installation. Use the provided mounting bracket and secure the water heater onto a sturdy surface.
- Proper venting is essential for the efficient operation of your Rheem tankless water heater. Use the recommended vent pipe material and follow the installation guidelines.
- Ensure correct electrical connections by using a standard 120VAC, 3-prong grounded outlet. Multiple water heaters may be installed on the same circuit if needed.
- Water line installation requires using the appropriate materials and sealing threaded connections. Follow the instructions to ensure optimal performance.
- If using a remote control, mount it on the unit's cabinet or a suitable wall location according to the provided instructions.
Understanding the Mounting of the Water Heater
Properly mounting a Rheem tankless water heater is crucial for a successful installation. To ensure stability and safety, the unit should be securely mounted onto a sturdy surface, such as a stud or framing behind the drywall. Rheem provides an easy-to-use mounting bracket that should be installed on the wall using the provided screws.
Once the bracket is in place, the water heater can be lifted and aligned with the hooks on the mounting bracket. It is important to ensure that the unit is level and secure by using additional fasteners as necessary. This step is essential to prevent any movement or instability of the water heater during operation.
For a visual representation of the mounting process, refer to the Rheem tankless water heater installation diagram below:
Step Description 1 Identify the mounting location and ensure proper clearances. 2 Install the mounting bracket on the designated wall using the provided screws. 3 Lift the water heater and align it with the hooks on the mounting bracket. 4 Secure the water heater to the mounting bracket using additional fasteners. 5 Double-check the levelness and stability of the water heater.
By following these mounting instructions and referring to the installation diagram, you can ensure a secure and stable installation of your Rheem tankless water heater.
Installing the Vent Pipe
Ensuring proper installation of the vent pipe is crucial for the safe and efficient operation of your Rheem tankless water heater. The vent system is designed to exhaust the combustion fumes and bring in fresh air for combustion. It is important to use the correct vent pipe material and follow the manufacturer's guidelines.
The venting for Rheem tankless water heaters is typically done using solid core, Schedule 40 PVC pipe. This type of pipe is durable and resistant to corrosion. It is essential to use the appropriate size and length of pipe specified by the manufacturer. The exhaust and air intake vents must be run to the outside of your home or building.
When installing the vent pipe, it is recommended to measure, cut, and dry fit the pipe before gluing the fittings together. This will ensure proper alignment and a secure connection. The venting should be supported using plumbing strap or pipe support clamps, especially for longer runs. It is important to follow the local building codes and regulations regarding venting requirements.
Table: Vent Pipe Installation Guidelines
Guidelines Requirements Pipe Material Solid core, Schedule 40 PVC Pipe Size Follow manufacturer's specifications Pipe Length Follow manufacturer's specifications Venting Location Outside of the building Venting Support Plumbing strap or pipe support clamps Local Regulations Follow building codes and regulations
By following the manufacturer's instructions and guidelines, you can ensure a proper and safe installation of the vent pipe for your Rheem tankless water heater. It is always recommended to consult the installation instructions and seek professional assistance if needed.
https://www.youtube.com/watch?v=n9YKot_SVjo
Connecting Electrical Components
In the installation of a Rheem tankless water heater, connecting the electrical components is a crucial step to ensure proper functioning. It is important to follow the manufacturer's guidelines and adhere to local electrical codes for a safe and efficient installation.
The Rheem tankless water heater requires a standard 120VAC, 3-prong grounded outlet for electrical connection. It is essential to provide a dedicated circuit for the water heater without using any ground adapters. Additionally, the water heater should not be connected to a GFCI or AFCI circuit, as it may cause unnecessary tripping.
The electrical requirements for the water heater are minimal, as it only draws a maximum of 3 amps of current. If required by local codes, the water heater can also be hard-wired. Multiple water heaters can be installed on the same circuit if needed, but it is important to ensure that the circuit can handle the combined electrical load.
To ensure a safe and reliable electrical connection, it is recommended to hire a licensed electrician or consult with a professional installer. They will have the expertise to properly connect the electrical components and ensure compliance with all applicable codes and regulations.
Table: Electrical Connection Requirements
Electrical Component Requirement Voltage 120VAC Outlet Type 3-prong grounded Maximum Current Draw 3 amps Ground Adapters Not recommended GFCI/AFCI Circuit Not to be used
Proper electrical connection is crucial for the safe and efficient operation of a Rheem tankless water heater. By following the manufacturer's guidelines and consulting with a professional, you can ensure a reliable installation that meets all electrical requirements and codes.
Installing Water Lines
Proper installation of water lines is crucial for the optimal performance of a Rheem tankless water heater. The hot and cold water connections are ¾” NPT male connections, and it is recommended to use service valves for easy future servicing. The piping should be ¾”-diameter copper or other code-approved material. Do not use galvanized pipe or fittings with the water heater. Seal the threaded connections with approved Teflon® tape and tighten the fittings without overtightening. A pressure-only relief valve rated at 150 PSI is required, and it should be piped to a drain or to the outside per local code requirements. For detailed instructions, refer to the "Water Supply" section of the installation instructions.
In addition to the proper piping materials, it’s important to consider the layout and placement of the water lines. The water heater should be centrally located in relation to the fixtures it will serve, minimizing the distance and reducing the time it takes for hot water to reach its destination. This can help improve energy efficiency and reduce water waste. Take care to plan and execute the water line installation with precision, ensuring that there are no leaks or issues that may cause disruptions in the system.
Water Line Installation Guidelines Do's Don'ts Use approved Teflon® tape for threaded connections Ensure proper alignment and tightness of all fittings Use galvanized pipe or fittings Install service valves for easy future servicing Seal threaded connections securely Overtighten fittings, as it may damage the water heater Pipe the pressure relief valve to a drain or to the outside Use ¾”-diameter copper or code-approved piping Use undersized or non-approved piping materials
Proper Water Line Sizing
When it comes to sizing the water lines for a Rheem tankless water heater, it is important to consider the flow rate and pressure requirements of the unit. Consult the manufacturer's specifications to determine the recommended pipe diameter based on the water heater's maximum flow rate and the overall demand of the system. Using undersized pipes can limit the performance of the water heater and result in insufficient hot water supply.
It is also crucial to factor in the length of the pipe runs and the number and type of fixtures that will be connected to the water heater. Longer pipe runs and multiple fixtures require larger pipe sizes to maintain sufficient water pressure and flow rate. Consulting a professional plumber or following local plumbing codes can help ensure that the water lines are properly sized for optimal performance.
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Mounting the Remote Control
If you choose to use a remote control with your Rheem tankless water heater, it can be easily mounted on the unit's cabinet or on a more accessible wall location. The remote will have a magnet on the back for easy mounting to the unit cabinet. If mounting on a wall, select a suitable location and secure the remote wall plate using the provided screws. Connect the remote wire to the back of the control and route it either out the bottom "knockout" or into the wall. Fasten the remote to the mounting plate using the small screw. Consult the "Remote Control Installation" section of the installation instructions for more details.
Remote Control Mounting Steps:
- Choose the desired location on the unit's cabinet or wall for mounting the remote control.
- If mounting on the unit cabinet, ensure that the surface is clean and dry. Place the remote control against the cabinet, aligning the magnet on the back of the remote with the corresponding area on the cabinet.
- If mounting on a wall, use the provided screws to secure the remote wall plate to the desired location.
- Connect the remote wire to the back of the control, ensuring a secure connection.
- Route the remote wire either out the bottom "knockout" or into the wall, depending on your preference and the wiring setup.
- Attach the remote to the mounting plate using the small screw provided.
Following these steps will ensure a secure and convenient mounting of the remote control for your Rheem tankless water heater.
Connecting Gas Lines
When installing a Rheem tankless water heater, connecting the gas lines correctly is essential for safe and efficient operation. Follow these steps to ensure a proper gas line connection.
Step 1: Gas Supply Connection
The gas supply connection for a Rheem tankless water heater is a male NPT fitting, and it is important to use the appropriate pipe size. The minimum pipe size should be ½" or larger to ensure sufficient gas flow. Flexible connectors may be used if their BTU capacity rating exceeds the maximum input rating of the water heater. To prevent gas leaks, seal the threaded connections with an approved pipe thread sealant and tighten the fittings without overtightening.
Step 2: Gas Shut-Off Valve
Install a gas shut-off valve directly on the gas fitting located on the bottom of the water heater. This valve allows you to isolate the water heater from the main gas supply for maintenance or emergency purposes. It is recommended to have a union near the water heater and a drip leg between the main gas supply valve and the water heater. The gas shut-off valve should be easily accessible and clearly labeled.
Step 3: Checking for Leaks
After connecting the gas lines, it is crucial to check for any gas leaks. Mix a soapy water solution and apply it to all the gas connections and fittings. If you see any bubbles forming, it indicates a gas leak. In the case of a gas leak, turn off the gas supply immediately and consult a professional for further assistance.
https://www.youtube.com/watch?v=Qzyyn1Y_9kY
Step Description 1 Connect the gas supply using a male NPT fitting. 2 Install a gas shut-off valve on the gas fitting of the water heater. 3 Check for gas leaks by applying a soapy water solution to all connections.
Understanding the Vent Termination
The vent termination for a Rheem tankless water heater is an essential component of the installation. It ensures the safe and proper exhaust of combustion gases and intake of fresh air. Understanding the vent termination is crucial for achieving optimal performance and adhering to safety standards.
Vent Termination Location
When selecting the location for the vent termination, several factors must be considered. The vent should be positioned in a place that allows for proper clearances and is away from windows, doors, or any other openings. It is recommended to maintain a minimum distance of 12 inches between the exhaust vent and any window or door. This prevents exhaust gases from re-entering the living space, ensuring the safety of occupants.
Vent Termination Installation
The installation process for the vent termination involves cutting appropriate holes through the wall for the exhaust and air intake vents. These holes should be properly positioned and sealed to prevent any air leakage. It is crucial to follow the manufacturer's instructions and local building codes when installing the vent termination.
Component Requirement Exhaust Vent Minimum distance of 12" from windows or doors Air Intake Vent Positioned away from exhaust vent Sealing Properly seal around the vent termination to prevent air leakage
Alternative Venting Options
Rheem offers alternative vent kits to provide a clean and finished appearance. These kits include components that can enhance the aesthetic appeal of the vent termination while maintaining proper functionality. If desired, these alternative venting options can be explored for a more visually pleasing installation.
Understanding the vent termination of a Rheem tankless water heater is crucial for a successful installation. By following the guidelines provided by the manufacturer and local building codes, you can ensure the safe and efficient operation of your tankless water heater.
Powering On and Testing
After completing the installation steps, it is time to power on and test your Rheem tankless water heater. Follow these simple instructions to ensure a successful start-up:
- Make sure that the water, gas, and electricity are turned on. It is important to have all the necessary utilities connected and available for the water heater to operate properly.
- Give the water heater approximately 90 seconds to complete its start-up system checks. During this time, the unit will perform various self-tests and ensure that all components are functioning correctly.
- Next, press the power button on the remote control to activate the water heater. The power button is usually located on the front panel or display of the remote control unit.
- Once the water heater is powered on, you can adjust the temperature to your desired setting. Use the up arrow key on the remote control to increase the temperature, and the down arrow key to decrease it. The water heater will begin to heat the water and maintain a steady temperature.
- Wait for approximately 30 seconds, and the water temperature should be within a couple of degrees of the thermostat setting. This indicates that the water heater is functioning correctly and providing hot water.
It is important to note that if you experience any issues or have concerns about the operation of your Rheem tankless water heater, consult the troubleshooting section of the installation instructions. There, you will find helpful tips and solutions to common problems. Additionally, if the problem persists, contact a professional installer or Rheem customer support for further assistance.
Recommended Temperature Setting:
For safety and energy efficiency reasons, it is recommended to set your Rheem tankless water heater to a temperature of 120°F (49°C). This temperature provides hot water for most household activities while minimizing the risk of scalding and reducing energy consumption.
Testing the Water Temperature:
If you want to test the water temperature directly from a fixture, follow these steps:
- Turn on a hot water faucet in your home and let the water flow for a few seconds.
- Fill a cup or container with the hot water and use a thermometer to measure the temperature. Be cautious to avoid burns when handling hot water.
- Compare the measured temperature with the temperature setting on your Rheem tankless water heater. They should be within a couple of degrees of each other if the water heater is functioning correctly.
By following these instructions, you can ensure that your Rheem tankless water heater is properly powered on and tested, providing you with reliable and efficient hot water whenever you need it.
Hot Water Faucet FlowDesired Water TemperatureApproximate Output TemperatureLow105°F (40°C)100-110°F (38-43°C)Medium115°F (46°C)110-120°F (43-49°C)High125°F (52°C)120-130°F (49-54°C)
Draining the Water Heater
In situations where a building is without electricity, water, or gas, it is necessary to drain the water heater to prevent freezing in winter conditions. This step is important to protect your Rheem tankless water heater and prolong its lifespan. Here's a step-by-step guide to draining your water heater:
- Shut off the gas supply, water supply, and power to the water heater.
- Connect a hose to the drain valve on the hot water side of the heater.
- Open the drain valve to allow the water to drain. Ensure the other end of the hose is positioned in a suitable draining area.
By draining the water heater, you remove any remaining water from the system, reducing the risk of it freezing and causing damage. Remember to follow the manufacturer's instructions and local regulations when draining your Rheem tankless water heater.
To further assist you with the draining process, refer to the table below for a visual representation of the steps involved:
Draining the Water Heater 1. Shut off the gas supply, water supply, and power to the water heater. 2. Connect a hose to the drain valve on the hot water side of the heater. 3. Open the drain valve to allow the water to drain. Ensure the other end of the hose is positioned in a suitable draining area.
Following these steps will help you drain your Rheem tankless water heater effectively, ensuring it remains in good working condition and protected during periods of extreme cold weather.
Conclusion
Installing a Rheem tankless water heater requires careful attention to the installation diagram and following the provided instructions. Proper mounting, venting, electrical connections, water and gas line installation, and testing are essential for the optimal performance and longevity of the water heater.
By following the steps outlined in this guide and referring to the installation instructions, you can successfully install a Rheem tankless water heater in your home or commercial space. The installation diagram serves as a valuable resource to ensure that each step is executed correctly.
For any further assistance or troubleshooting, consult the Use and Care Manual or reach out to a professional installer or Rheem customer support. They'll be able to guide you through the installation process and address any concerns you may have. Remember, a properly installed Rheem tankless water heater will provide you with efficient and reliable hot water for years to come.
FAQ
How should I mount the Rheem tankless water heater?
The water heater should be securely mounted onto a sturdy surface, such as a stud or framing behind the drywall, using the provided mounting bracket. Refer to the "Water Heater Installation" section of the installation instructions for more details.
What type of vent pipe should I use for the Rheem tankless water heater?
The vent system is designed for use with solid core, Schedule 40 PVC pipe. It is important to use the correct vent pipe material and follow the proper installation procedures. Refer to the "Venting" section of the installation instructions for specific requirements.
What electrical connection is required for the Rheem tankless water heater?
The water heater requires a standard 120VAC, 3-prong grounded outlet. Do not use ground adapters or connect the water heater to a GFCI or AFCI circuit. Multiple water heaters can be installed on the same circuit if needed. Refer to the "Electrical Wiring" section of the installation instructions for more details.
How should I install the water lines for the Rheem tankless water heater?
The hot and cold water connections are ¾” NPT male connections, and it is recommended to use service valves for easy servicing. The piping should be ¾”-diameter copper or other code-approved material. Do not use galvanized pipe or fittings with the water heater. Refer to the "Water Supply" section of the installation instructions for detailed instructions.
How do I mount the remote control for the Rheem tankless water heater?
The remote control can be mounted on the unit's cabinet or on a wall. It has a magnet on the back for easy mounting to the unit cabinet. If mounting on a wall, secure the remote wall plate using the provided screws and connect the remote wire to the back of the control. Refer to the "Remote Control Installation" section of the installation instructions for more details.
What type of gas supply connection is required for the Rheem tankless water heater?
The gas supply connection is a male NPT fitting, and the minimum pipe size must be ½" or larger. Flexible connectors may be used, but their BTU capacity rating must exceed the maximum input rating of the water heater. Refer to the "Gas Supply" section of the installation instructions for specific requirements.
How should I position the vent termination for the Rheem tankless water heater?
The location of the vent termination should be carefully selected, considering clearances and distance from windows or doors. Properly position and seal the exhaust and air intake vents through the wall. Refer to the "Venting" section of the installation instructions for more details.
How do I power on and test the Rheem tankless water heater?
Ensure that the water, gas, and electricity are turned on. Press the power button on the remote control and adjust the unit to the desired temperature. The water heater will begin to turn on, and the water temperature should reach the desired setting after about 30 seconds. Refer to the installation instructions for troubleshooting steps or further details.
How do I drain the Rheem tankless water heater?
To drain the water heater, shut off the gas, water, and power. Connect a hose to the drain valve on the hot water side and open the valve to allow the water to drain. This step is important in preventing freezing during extreme cold temperatures. Refer to the installation instructions for more details.
