1. Product Overview
The Riello FD01 Photoelectric Cell is a critical component designed for use in Riello oil burners. Its primary function is to detect the presence of a flame, ensuring safe and efficient operation of the heating system. This cell acts as a sensor, signaling the control unit about the combustion status. It is an essential spare part for maintaining the functionality of compatible Riello burner models.
Figure 1.1: Riello FD01 Photoelectric Cell. This image displays the main component with its attached wiring and connector, ready for installation.
2. Compatibility
The Riello FD01 Photoelectric Cell is compatible with a range of Riello burner models. Please verify your burner model number against the list below to ensure proper fit and function. This component is specifically designed to work in conjunction with the MO550 BWG or MO550 MWG control units.
Compatible Burner Models:
- BGK1-370T1 (only 3737066)
- BGK2-374T1 (only 3737456)
- BGK3-375T1
- RG0.R-367T1
- RG0.1R-368T1
- RG0.1-369T1
- RG0.2R-358T1
- RG1
- 1RK-362T1
- RK1RKD-366T1
- RG2-377T1
- RG2D-380T1
- RG3-393T1
- RG3D-394T1
- RG4D-397T1
- RG4S-396T1
- RG5D-398T1
Note: Compatibility is only ensured when used in conjunction with the MO550 BWG or MO550 MWG control unit.
3. Setup and Installation
Installation of the Riello FD01 Photoelectric Cell involves working with electrical and fuel systems. For safety and proper function, installation and replacement procedures must be performed by a qualified and certified technician. Incorrect installation can lead to equipment damage, fire, or personal injury.
3.1 Replacement Procedure (General Guidelines)
- Safety First: Ensure the burner and heating system are completely powered off and disconnected from the main electricity supply. Close any fuel supply valves.
- Access: Carefully open the burner housing to access the existing photoelectric cell.
- Disconnection: Disconnect the wiring from the old photoelectric cell and carefully remove it from its mounting. Note the orientation and connection points.
- Installation: Insert the new Riello FD01 Photoelectric Cell into the designated slot, ensuring it is securely seated. Connect the wiring according to the burner's electrical diagram.
- Reassembly & Testing: Close the burner housing. Restore power and fuel supply. Perform a functional test of the burner to ensure the new cell is operating correctly and detecting the flame.
Figure 3.1: Riello FD01 Photoelectric Cell, side view. This image provides a clearer view of the sensor's body and the integrated mounting features.
3.2 Specific Replacement Note for 3007492
If the existing photo resistance with part number 3007492 is found to be defective, it is recommended that the entire control unit be replaced. In such cases, the conversion kit 20146982 (which includes the MO550 BWG control unit and the FD01 photo resistance) is advised for a complete and compatible solution.
4. Operating Instructions
The Riello FD01 Photoelectric Cell operates automatically as part of the burner's control system. It continuously monitors the flame during burner operation. There are no direct user operating controls for this component. Its function is entirely passive, providing feedback to the burner's control unit.
5. Maintenance
The Riello FD01 Photoelectric Cell generally requires minimal maintenance. However, as part of routine burner servicing, a qualified technician should inspect the cell for any signs of damage or excessive soot accumulation on its sensing surface. A clean sensing surface is crucial for accurate flame detection.
- Annual Inspection: Include the photoelectric cell in the annual inspection and maintenance schedule for your oil burner.
- Cleaning: If accessible and deemed necessary by a technician, the sensing element may be gently cleaned to remove any dust or soot that could obstruct flame detection.
- Replacement: Replace the cell if it shows signs of wear, damage, or if it is identified as the cause of burner malfunction during troubleshooting.
Figure 5.1: Riello FD01 Photoelectric Cell, connector view. This image highlights the electrical connector, which is crucial for proper wiring during installation.
6. Troubleshooting
If your oil burner is experiencing issues related to flame detection or failure to ignite, the photoelectric cell may be a contributing factor. Always consult a qualified technician for diagnosis and repair.
6.1 Common Issues and Solutions
- Burner Fails to Ignite: This could indicate a faulty photoelectric cell not detecting a flame, or a dirty cell obstructing the sensor.
- Burner Locks Out: If the burner attempts to ignite but then locks out, the photoelectric cell might not be registering a stable flame.
- Specific Issue: Defective Photo Resistance 3007492: As noted in the product description, if the photo resistance with part number 3007492 is defective, it is recommended to replace the entire control unit. The conversion kit 20146982 (MO550 BWG + FD01 photo resistance) is suggested for this scenario. This indicates a deeper issue than just the cell itself, requiring a system-level replacement.
Important: Do not attempt to repair the photoelectric cell or control unit yourself. Contact a professional heating technician for all diagnostic and repair work.
7. Specifications
| Brand | Riello |
| Model | FD01 |
| Part Number (ASIN) | B07H32C3P6 |
| Function | Flame detection for oil burners |
| Compatibility Note | Requires MO550 BWG or MO550 MWG control unit for full compatibility with listed burner models. |
| Manufacturer | Riello |
For detailed technical drawings or specific electrical parameters, please refer to the official Riello documentation for your specific burner model or contact Riello customer support.
8. Warranty and Support
Information regarding the warranty for the Riello FD01 Photoelectric Cell is not provided within this instruction manual. For warranty details, technical support, or to locate authorized service centers, please contact your original point of purchase or visit the official Riello website. Always provide your product model and serial number when seeking support.
