VEVOR RV Tankless Water Heater Instruction Manual

1. Introduction

Thank you for choosing the VEVOR RV Tankless Water Heater. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your new water heater. Designed for RV use, this unit delivers instant hot water with 55000 BTU heating power, ensuring comfort and convenience on the go. Please read this manual thoroughly before installation and use, and keep it for future reference.

Figure 1: VEVOR RV Tankless Water Heater with remote controller.

2. Safety Information

Always adhere to the following safety guidelines to prevent injury, property damage, or improper operation.

• Installation Environment: Do not use this product in an enclosed space or tent. Ensure proper ventilation and a clear path for exhaust fumes.
• Flammable Materials: Do not use or store flammable or explosive materials near this product.
• Aerosols: Do not spray aerosols near the device while it is in operation.
• Professional Installation: The installation of this product and all its components must comply with national standards and local regulations. It is highly recommended that installation be performed by a qualified professional.
• Gas Type: This product is designed to use propane gas only. Ensure the standard gas pressure is 2.8 kPa.
• Water Connections: Ensure all water connections are properly sealed to prevent leaks. The inlet and outlet threads are 1/2" NPT. Do not exceed 80 Nm torque when tightening water connections.
• Gas Connections: Ensure all gas connections are properly sealed to prevent gas leakage. The inlet thread specification is 1/2" NPT. An adapter (1/2" NPN to 5/8" UNF) is used to connect the pressure reducing valve to the machine. Apply thread sealant to prevent leakage. The torque for adapter connections should not exceed 40 Nm. Always check for gas leaks using a soapy water solution after connecting.
• Electrical Connections: Connect the red wire to the positive (+) terminal and the black wire to the negative (-) terminal of the 12V DC power supply. Ensure secure connections.
• Exhaust Port: Be aware of high temperature hazards at the exhaust port during and after operation. Do not touch the exhaust port.

3. Setup & Installation

3.1. Preparation

Before beginning installation, ensure you have all necessary tools and components. These typically include a water heater, gas connector, sealant (butyl tape recommended, not silicone), wrenches, pliers, and a screwdriver.

3.2. Select Installation Location

Choose an appropriate location to install the water heater, typically on the wall or floor inside the RV. Ensure the location allows for proper ventilation and a clear path for exhaust fumes. The unit's door size is 15x15 inches, and the rear chamber size is 12.6x12.6x14 inches.

Figure 2: RV water heater dimensions and connection points.

3.3. Install Front Door Panel

Install the front door panel by rotating its handle to the right to open the cover. Align the inner lining to cover the holes of the water heater and fix it with screws.

3.4. Water Pipe Connection

Connect the shower pipe to the water outlet in the upper right corner of the unit. Connect the water inlet pipe to the water inlet in the lower left corner. Both inlet and outlet threads are 1/2" NPT. Apply thread sealant tape and tighten securely. The torque must not be greater than 80 Nm. After connection, check for any water leakage.

3.5. Gas Pipe Connection

Connect the gas pipe to the gas inlet. This product uses propane gas. The inlet thread specification is 1/2" NPT. An adapter (1/2" NPN to 5/8" UNF) is used to connect the pressure reducing valve to the machine. Apply thread sealant to prevent leakage. The torque for these connections should not exceed 40 Nm. After connecting, apply a soapy water solution to all gas connections to check for air leakage (bubbles indicate a leak).

3.6. Electrical Connection

Connect the controller. There are two blue power wires in the accessories; the polarity of these wires is irrelevant, and they can be connected to either blue wire. Connect the red and black wires of the water heater power cord to the 12V DC power supply. The red wire is positive (+), and the black wire is negative (-).

3.7. Mounting the Unit

Slide the device completely through the cutout in the RV wall until the forward flange contacts the RV sidewall. Secure the flange to the sidewall with fasteners. The entire backside of the forward convex and around all holes should be sealed with a sufficient amount of water sealing material, preferably 1-inch wide butyl tape (not included). Do not use adhesives like silicone for water sealing.

4. Operating Instructions

The VEVOR RV Tankless Water Heater is designed for user-friendly operation with its LED smart display and touch controls.

4.1. Initial Startup and Testing

After completing all installation steps, conduct thorough testing and debugging to ensure the water heater works properly and is free from leaks. Verify all connections (water, gas, electrical) are secure and leak-free before proceeding.

4.2. Power On/Off

Press the power button on the remote controller to turn the unit on or off. The LED display will illuminate when the unit is active.

4.3. Temperature Adjustment

Use the touch controls on the LED smart display to adjust the water temperature. The unit features segmented combustion technology, which adjusts water temperature based on seasonal changes, ensuring comfortable hot water year-round while being energy-efficient. The temperature range is typically 95-123°F.

Figure 3: LED Smart Display and Touch Controls.

4.4. Rapid Instant Heating

The 55000 BTU high power ensures rapid hot water delivery for showering, dishwashing, and other needs. The minimum starting flow rate is 2.8 L/min.

Figure 4: Efficient Instant Heating Mechanism.

5. Maintenance

Regular maintenance ensures the longevity and efficient operation of your VEVOR RV Tankless Water Heater.

• Regular Cleaning: Periodically clean the exterior of the unit with a soft, damp cloth. Avoid abrasive cleaners.
• Check for Leaks: Regularly inspect all water and gas connections for any signs of leakage. Address any leaks immediately.
• Ventilation: Ensure the exhaust vent is clear of obstructions to allow for efficient heat dissipation. The unit is equipped with a high-performance fan for this purpose.
• Winterization: If the RV will be stored in freezing temperatures, properly winterize the water heater to prevent damage from frozen water. Consult an RV service professional if unsure.
• Professional Inspection: It is recommended to have the unit inspected by a qualified technician annually to ensure all components are functioning correctly and safely.

Figure 5: High-Performance Fan for Heat Dissipation.

6. Troubleshooting

This section provides solutions to common issues you might encounter. For problems not listed here, or if solutions do not resolve the issue, contact VEVOR customer support.

7. Specifications

Figure 6: Detailed Product Parameters.

8. Warranty & Support

VEVOR products come with a standard warranty. For detailed warranty information, including terms, conditions, and duration, please refer to the warranty card included with your product or visit the official VEVOR website.

If you encounter any issues or have questions regarding your VEVOR RV Tankless Water Heater, please contact VEVOR customer support. Have your model number (TM-RV03-2B) and purchase information ready when contacting support for faster assistance.

VEVOR Official Website: www.vevor.com