1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Ferroli BLUEHELIX THETA 24 C condensing boiler. Please read these instructions carefully before installation and use, and keep them for future reference. This appliance must be installed and serviced by qualified personnel in accordance with local regulations and standards.
2. Consignes de sécurité
- Installation professionnelle : Installation, first start-up, and maintenance must be carried out by qualified and authorized personnel only.
- Alimentation en gaz : Ensure the gas supply type matches the boiler's configuration. Do not attempt to modify the gas type without proper authorization and technical expertise.
- Ventilation: Assurez une ventilation adéquate conformément à la réglementation locale relative aux appareils à gaz.
- Pression de l'eau : Maintain correct system water pressure as specified in the technical data.
- Connexion électrique : Connect the boiler to a properly grounded electrical supply.
- Matériaux inflammables : Ne stockez pas de matériaux inflammables à proximité de la chaudière.
- Enfants et personnes non autorisées : Tenir les enfants et les personnes non autorisées éloignés de l'appareil.
3. Produit terminéview
The Ferroli BLUEHELIX THETA 24 C is a wall-mounted condensing boiler designed for both central heating and instant domestic hot water production. It features advanced technology for high efficiency and adaptability.
Caractéristiques principales :
- Stainless Steel Primary Exchanger: Monocircuit design without junctions or welds, ensuring high efficiency even with older installations.
- MC2 (Multi Combustion Control): Patented gas-adaptive technology for optimal combustion and adaptability to varying gas network conditions (e.g., pressure fluctuations).
- M.G.R. (Methane, LPG, Propane Air Ready): Configurable for Methane, LPG, or Propane Air without additional conversion kits.
- Instant Domestic Hot Water: Dedicated plate heat exchanger for immediate hot water supply.
- Interface utilisateur : Equipped with a display and multifunction keys for easy parameter adjustment and setting.
- By-pass: Integrated bypass as standard.
- Entretien facile : Casing removable in 3 parts for quick and simple servicing.
- ErP Ready: Low consumption modulating heating circulator (Class A).
- Digital Flame Control: Includes three re-ignition attempts in case of flame detection failure (for methane models).
- F.P.S. (Flue Protection System): Optional accessory (041106X0 - exhaust gas valve kit) allows connection to collective pressurized flue systems.
- Installation extérieure : Suitable for partially protected outdoor installation down to -5 °C as standard, and down to -15 °C with the optional anti-freeze resistance kit.
Dimensions et connexions :
The following diagram illustrates the boiler's dimensions and connection points. All measurements are in millimeters.

Description de l'image : Technical drawing showing the Ferroli BLUEHELIX THETA 24 C boiler from front, side, top, and bottom views with key dimensions. The front view shows the control panel. The top view (VISTA SUPERIORE) indicates a width of 420mm and depth of 250mm. The bottom view (VISTA INFERIORE) details various connection points labeled 7 through 11, and A6, with specific spacing measurements. The overall height is 700mm, width 420mm, and depth 250mm.
- Dimensions hors tout : Height: 700 mm, Width: 420 mm, Depth: 250 mm.
- Bottom Connections (VISTA INFERIORE): Numbered connections for various circuits, including gas, heating flow/return, and domestic hot water. Specific spacing is provided for installation planning.
4. Configuration et installation
Installation must be performed by a certified professional. Ensure all local codes and regulations are followed.
Étapes d'installation (Résumé) :
- Montage: Securely mount the boiler to a suitable wall using the provided mounting bracket, ensuring it is level and stable.
- Système de conduit de fumée : Connect the flue system according to manufacturer instructions and local regulations. Ensure proper sealing.
- Connexions hydrauliques : Connect the heating flow and return pipes, domestic hot water inlet and outlet, and condensate drain. Refer to the 'VISTA INFERIORE' diagram for connection points.
- Raccordement au gaz : Connect the gas supply line to the boiler's gas inlet. Perform a leak test.
- Connexion électrique : Connect the boiler to the main electrical supply. Ensure proper grounding.
- Remplissage du système : Remplissez le système de chauffage d'eau et purgez-le de tout l'air. Vérifiez l'absence de fuites.
- Gas Type Configuration: Configure the boiler for the specific gas type (Methane, LPG, or Propane Air) using the user interface, if not already set by the installer.
5. Mode d'emploi
The boiler's user interface consists of a display and multifunction keys for controlling its operation.
Fonctionnement de base :
- Marche/Arrêt : Utilisez l'interrupteur principal pour allumer ou éteindre la chaudière.
- Réglage de la température de chauffage : Use the designated keys on the control panel to increase or decrease the central heating water temperature.
- Domestic Hot Water Temperature Adjustment: Adjust the desired domestic hot water temperature using the relevant controls.
- Modes de fonctionnement : Select between heating only, hot water only, or combined heating and hot water modes as needed.
- Sliding Temperature Operation: If an optional outdoor probe is installed, the boiler can operate in a sliding temperature mode, automatically adjusting the heating water temperature based on external conditions for optimized efficiency.
Refer to the detailed user interface section in the full manual for specific button functions and display indicators.
6. Entretien
Regular maintenance is crucial for the safe, efficient, and long-lasting operation of your Ferroli BLUEHELIX THETA 24 C boiler. All maintenance should be performed by qualified service personnel.
Entretien recommandé :
- Inspection annuelle: Have the boiler inspected and serviced annually by a qualified technician. This includes checking combustion efficiency, gas tightness, water pressure, and cleaning components.
- Casing Removal: The boiler's casing is designed to be easily removed in three parts, facilitating quick access for maintenance and cleaning.
- Water Pressure Check: Periodically check the system water pressure on the boiler's display. If it falls below the recommended level, repressurize the system according to the instructions.
- Protection antigel : If the boiler is installed in an area prone to freezing temperatures, ensure the optional anti-freeze resistance kit is installed and functioning, or take other appropriate measures to prevent freezing.
7. Dépannage
If you encounter issues with your boiler, refer to the following common troubleshooting points. For complex problems, contact a qualified service technician.
- No Heating/Hot Water:
- Vérifiez si la chaudière est sous tension.
- Verify the system water pressure.
- Vérifiez que le thermostat est correctement réglé et qu'il demande du chauffage.
- Vérifiez les codes d'erreur à l'écran.
- Codes d'erreur : If an error code appears on the display, consult the full user manual for its meaning and recommended action. Some errors may require a technician.
- Digital Flame Control: The boiler features digital flame control with three re-ignition attempts. If the flame fails to establish after these attempts, the boiler will lock out. This often indicates a gas supply issue or a fault with the ignition system.
- F.P.S. (Flue Protection System): If the optional F.P.S. accessory is installed and an issue with the flue system is detected, the boiler may shut down for safety.
Important: Do not attempt to repair internal components yourself. Always contact a qualified technician for repairs.
8. Spécifications
Technical specifications for the Ferroli BLUEHELIX THETA 24 C boiler:
| Spécification | Valeur |
|---|---|
| Marque | Ferroli |
| Modèle | BLUEHELIX THETA 24 C |
| Référence constructeur | 0TPY2AWA |
| Type de produit | Condensing Wall-Mounted Boiler |
| Poids | 51 kg |
| Dimensions (H x L x P) | 700 x 420 x 250 mm |
| Style | Industriel |
| Forme | Rectangulaire |
| Gas Adaptability | Methane, LPG, Propane Air (M.G.R.) |
| Classe d'efficacité énergétique | ErP Ready (Class A circulator) |
| Installation extérieure | Down to -5 °C (standard), -15 °C (with optional anti-freeze kit) |
| ASIN | B0CKXWPWFP |
9. Garantie et assistance
For warranty information, please refer to the documentation provided with your purchase or contact your authorized Ferroli dealer. Keep your proof of purchase for warranty claims.
Assistance clientèle :
For technical assistance, spare parts, or service requests, please contact your local authorized Ferroli service center or the retailer from whom you purchased the product. Ensure you have the boiler's model number (BLUEHELIX THETA 24 C) and manufacturer reference (0TPY2AWA) available when contacting support.





