Rheem RTEX-36 Wiring Diagram: Complete Guide to Installation

The Rheem RTEX-36 is an electric tankless water heater designed to provide hot water on demand for large families, commercial applications, and other high demand situations. This unit is equipped with advanced features and technology to ensure the delivery of hot water whenever and wherever you need it.

One of the most important aspects of installing the Rheem RTEX-36 is ensuring that the wiring is done correctly. In this article, we will provide a complete guide to the Rheem RTEX-36 wiring diagram, including step-by-step instructions and helpful tips to make the process as smooth as possible.

Understanding the Rheem RTEX-36 Wiring Diagram

Before we dive into the details of the wiring diagram, let’s take a moment to understand the components of the Rheem RTEX-36. This tankless water heater is made up of several key parts, including:

Component Description
Flow Sensor Detects the water flow and signals the heating elements to turn on.
Heating Elements Heats the water as it flows through the unit.
Temperature Sensor Detects the temperature of the water and signals the control board to adjust the heating elements accordingly.
Control Board Regulates the flow of electricity to the heating elements and monitors the temperature and flow sensors.

Now that we have a basic understanding of the components, let’s take a look at the Rheem RTEX-36 wiring diagram.

The Rheem RTEX-36 Wiring Diagram: Step-by-Step Instructions

Before beginning any electrical work, it is important to turn off the power supply to the unit. This can be done at the breaker panel or by unplugging the unit if it is already installed.

Step One: Connect the Incoming Power Wires

The first step in the wiring process is to connect the incoming power wires to the unit. This will typically be a red wire and a black wire, although some units may have additional wires for grounding or neutral.

Strip the ends of the wires and connect them to the corresponding terminals on the unit. The red wire should be connected to the red terminal and the black wire should be connected to the black terminal.

It is important to ensure that the wires are securely attached and that there are no loose connections. Use wire nuts or other appropriate connectors to make the connection.

Step Two: Connect the Grounding Wire

The next step is to connect the grounding wire to the unit. This wire is typically green or bare copper and is essential for safety reasons.

Connect the grounding wire to the appropriate terminal on the unit, which is typically labeled as “ground” or “GND”.

Step Three: Connect the Load Wires

The load wires are the wires that supply power to the heating elements. They will typically be connected to the unit using a set of terminals labeled as “L1” and “L2”.

Strip the ends of the wires and connect them to the appropriate terminals on the unit. The L1 wire should be connected to the L1 terminal and the L2 wire should be connected to the L2 terminal.

Step Four: Connect the Flow Sensor Wires

The flow sensor is a critical component of the Rheem RTEX-36 and is responsible for detecting the water flow and signaling the heating elements to turn on. The flow sensor is typically connected to the unit using a set of wires that are color-coded for easy identification.

Connect the wires from the flow sensor to the appropriate terminals on the unit, which are typically labeled as “FLOW IN” and “FLOW OUT”. The wires should be connected to the terminals that correspond to the colors of the wires.

Step Five: Connect the Temperature Sensor Wires

The temperature sensor is another critical component of the Rheem RTEX-36 and is responsible for detecting the temperature of the water and signaling the control board to adjust the heating elements accordingly. The temperature sensor is typically connected to the unit using a set of wires that are color-coded for easy identification.

Connect the wires from the temperature sensor to the appropriate terminals on the unit, which are typically labeled as “TEMP IN” and “TEMP OUT”. The wires should be connected to the terminals that correspond to the colors of the wires.

Step Six: Connect the Control Board Wires

The control board is responsible for regulating the flow of electricity to the heating elements and monitoring the temperature and flow sensors. It is typically connected to the unit using a set of wires that are color-coded for easy identification.

Connect the wires from the control board to the appropriate terminals on the unit, which are typically labeled as “CONTROL IN” and “CONTROL OUT”. The wires should be connected to the terminals that correspond to the colors of the wires.

FAQ: Rheem RTEX-36 Wiring Diagram

1. What is the purpose of the flow sensor?

The flow sensor is responsible for detecting the water flow and signaling the heating elements to turn on. Without the flow sensor, the unit would not be able to detect when hot water is needed and would not be able to supply it on demand.

2. How does the temperature sensor work?

The temperature sensor detects the temperature of the water as it flows through the unit and signals the control board to adjust the heating elements accordingly. This ensures that the water is always at the desired temperature and helps to prevent scalding or other temperature-related issues.

3. What should I do if I encounter wiring problems during installation?

If you encounter any wiring problems during installation, it is important to stop work immediately and seek the assistance of a qualified electrician. Attempting to fix the problem yourself could result in injury or damage to the unit.

4. Can I install the Rheem RTEX-36 myself?

While it is possible to install the Rheem RTEX-36 yourself, it is recommended that you seek the assistance of a qualified electrician to ensure that the wiring is done correctly and safely.

5. How long does the installation process typically take?

The installation process for the Rheem RTEX-36 typically takes several hours, depending on the complexity of the wiring and the experience of the installer. It is important to allow plenty of time for the installation and to carefully follow the instructions provided by Rheem.

Conclusion

The Rheem RTEX-36 is an advanced electric tankless water heater designed to provide hot water on demand for large families and commercial applications. While the installation process can be complex, understanding the wiring diagram and following the instructions carefully can help to ensure that the installation is done correctly and safely. If you have any questions or concerns about the Rheem RTEX-36 wiring diagram or installation process, be sure to consult with a qualified electrician or contact Rheem customer support for assistance.