1. Produttu Finituview
The Riello MG569 BWZG is a sophisticated control unit designed for reliable and efficient operation of Riello gas burners. This unit manages the ignition, flame supervision, and safety functions of the burner, ensuring optimal performance and adherence to safety standards. It is a direct replacement for several older models, offering enhanced functionality and compatibility.
1.1 Cumpatibilità
This control unit is compatible with the following Riello burner series:
- BS1-911T1, BS1D-915T1
- BS2-912T1, BS2D-916T1
- BS3-913T1, BS3D-917T1
- BS4-914T1, BS4D-918T1
It also replaces previous control unit models including 3002949, 3002967, 569SE, 568SE, 566SE rev3, 566SE rev2, 566SE rev1, and 525SE/G.

Figura 1: Top view of the Riello MG569 BWZG Control Unit, illustrating the various terminal connections for power, ignition, and burner components.
2. Setup è Installazione
Installation of the Riello MG569 BWZG control unit requires specialized knowledge of electrical systems and burner operation. It is strongly recommended that installation be performed by a qualified and certified technician to ensure safety and proper functionality.
2.1 Precauzioni di sicurezza
- Disconnect Power: Always ensure the main power supply to the burner system is disconnected before beginning any installation or maintenance work.
- Verificate a cumpatibilità: Confirm that the MG569 BWZG unit is the correct replacement or component for your specific Riello burner model.
- Follow Wiring Diagrams: Refer to the specific wiring diagrams provided with your burner system and the control unit for accurate connections. Incorrect wiring can lead to damage or hazardous conditions.
- Cundizioni Ambientali: Install the unit in a dry, protected environment, away from excessive heat, moisture, or corrosive substances.
2.2 Passi d'installazione (generali)
- Eliminate a vechja unità: Carefully disconnect and remove the existing control unit, noting all wiring connections.
- Muntà una nova unità: Securely mount the Riello MG569 BWZG control unit in the designated position.
- Cunnette u cablaggio: Connect all electrical wires according to the burner's wiring diagram. This typically includes connections for power supply (L1, N), ignition transformer, flame sensor, motor, and fuel valve. Ensure all connections are tight and secure.
- Messa a terra: Verify that the unit and burner system are properly grounded to prevent electrical hazards.
- Cuntrolli iniziali: Before restoring power, double-check all connections for correctness and security.
- Ripristina l'energia: Carefully restore power to the burner system.
- Operazione di prova: Initiate a test firing sequence to ensure the burner ignites and operates correctly, and that all safety features are functioning.

Figura 2: Un altru view of the Riello MG569 BWZG Control Unit, highlighting the terminal block for electrical connections and mounting screw locations.
3. Operating Instructions
The Riello MG569 BWZG control unit operates automatically once installed and powered. Its primary function is to manage the burner's ignition sequence, flame supervision, and shutdown procedures in case of malfunction.
3.1 Normal Operation Sequence
- Abbrivu: Upon receiving a call for heat, the control unit initiates a pre-purge cycle to clear the combustion chamber.
- accensione: After pre-purge, the ignition transformer is activated, creating a spark, and the fuel valve opens to allow fuel into the combustion chamber.
- Flame Detection: The flame sensor (e.g., photocell or ionization probe) detects the presence of a flame. If a flame is established within the safety time, the ignition spark is cut off, and the burner continues to operate.
- Corsa: The burner operates under the supervision of the control unit, which continuously monitors the flame.
- Chjodi: When the call for heat ends, the fuel valve closes, and the burner shuts down. A post-purge cycle may follow.
3.2 Indicatori luminosi
The control unit may feature indicator lights (LEDs) to signal its operational status or fault conditions. Consult your burner's specific documentation for a detailed explanation of these indicators. Typically, a steady green light indicates normal operation, while a flashing or red light signifies a fault.
4. Mantenimentu
Regular maintenance is crucial for the longevity and safe operation of your burner system and its control unit. All maintenance should be performed by a qualified service technician.
4.1 Schedule di mantenimentu cunsigliatu
- Ispezione annuale: Have a qualified technician inspect the entire burner system, including the control unit, flame sensor, ignition electrodes, and fuel lines, at least once a year.
- Pulizia: Ensure the control unit and its connections are free from dust, dirt, and moisture. Do not use abrasive cleaners or solvents.
- Cuntrolli di cunnessione: Periodically, a technician should verify that all electrical connections to the control unit are secure and free from corrosion.
Nota: The control unit itself is a sealed component and is not user-serviceable. Any internal issues require replacement of the unit.
5. Risoluzione di prublemi
This section provides general guidance for common issues. For detailed diagnostics, consult a qualified technician.
| Prublemu | Causa Possibile | Azzione |
|---|---|---|
| Burner does not start / No ignition |
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| Burner ignites but immediately shuts down (flame failure) |
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| Control unit shows a fault code/light |
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6. Specifiche tecniche

Figura 3: Side view of the Riello MG569 BWZG Control Unit, displaying the product label with key technical specifications.
| Feature | Detail |
|---|---|
| Numero di mudellu | MG569 BWZG |
| U fabricatore | Riellu |
| Voltage | 210-230V ~ 50/60Hz |
| Fuse | T4A 250V~ |
| Ignition Voltage | 18 kVpk |
| currente | 11 m d'arme |
| UPC | 748810822879 |
| Cumpatibilità | Riello BS1, BS2, BS3D, BS4D series burners |
| Rimpiazza i mudelli | 3002949, 3002967, 569SE, 568SE, 566SE rev3, 566SE rev2, 566SE rev1, 525SE/G |
7. Garanzia infurmazione
Specific warranty terms for the Riello MG569 BWZG control unit are typically provided by the seller or manufacturer at the time of purchase. Please retain your proof of purchase for warranty claims.
Information regarding the availability of spare parts is currently unavailable. For any spare part inquiries, please contact your supplier or an authorized Riello service center.
8. Assistenza Clienti
For technical assistance, service, or further information regarding the Riello MG569 BWZG control unit, please contact:
- Your authorized Riello dealer or installer.
- An authorized Riello service center.
- The manufacturer directly via their official websitu o canali di cuntattu.
When contacting support, please have your product model number (MG569 BWZG) and any relevant purchase details ready.





