Atmos A 25 Burner

Product detailed description

The Atmos A 25 is a pellet burner designed for integration into boiler systems using belt conveyors. It is commonly used in residential and commercial heating systems where fuel efficiency and precise control are required. Installers typically work with this unit in combination with specific boiler models and matching conveying systems. The burner operates on high-quality white wood pellets and supports automatic ignition and combustion control via electronic regulation. The system ensures high efficiency and low emissions when operated correctly.

Its design suits applications where consistent heat output is necessary, such as in large residential buildings, small industrial facilities or agricultural buildings. The burner is compatible with a range of boiler models and requires careful installation to ensure correct integration with the boiler and conveying system. The electronic control unit also manages the flue gas extraction fan, circulation pump and optionally a solar system.

Technical parameters

Installation and connection

Installation involves connecting the burner to the boiler chamber and conveyor system. The conveyor must be of type DA and between 1.5 and 4 m in length. The burner must be positioned to allow free access for maintenance and cleaning. The electrical connections include power supply for the heating coil, control signals for the conveyor and sensors. It is important to ensure that all electrical connections are secured and that the control unit is properly grounded.

Common installation errors include incorrect conveyor alignment, which can lead to uneven fuel delivery, or failure to secure the electrical connections, which may cause operational failures. The burner must be mounted horizontally and levelled to prevent fuel blockage. After installation, a test run should be conducted to confirm proper ignition and combustion.

Compatibility and accessories

The Atmos A 25 is compatible with a range of boiler models, including D 14 P, C18 S upr, DC18 S upr, D 21 P, C25 ST upr, DC25 S upr, D 25 P, C32 ST upr, DC30 SX upr, D 20 P, AC25 ST upr and DC32 S upr. It is designed for use with the DA conveyor system and should be ordered separately. Additional components such as pneumatic cleaning systems may be required for use with lower quality pellets.

Installers should also consider the need for a buffer tank and appropriate sensors (TV and TS) for optimal control. The system integrates with solar panels via the control unit, allowing for hybrid operation. A detailed check of all system components is recommended before commissioning.

Technical background for designers

The Atmos A 25 operates by feeding pellets into the combustion chamber via a conveyor. A heating coil ignites the fuel automatically, ensuring rapid start-up and efficient combustion. The burner is constructed from durable materials suitable for high-temperature environments. The combustion process is controlled by an electronic unit that adjusts the fuel feed and air supply based on sensor inputs from the buffer tank.

The efficiency of the system depends on the quality of the pellets, the correct setting of the control unit and the overall system design. The absence of a continuous glowing bed in the combustion chamber allows for more flexible operation and higher efficiency compared to some alternative designs.

Service and operation

Maintenance involves regular removal of ash, which should be performed every 7 to 30 days depending on the fuel quality and operating load. The frequency of ash removal is influenced by the calorific value and composition of the pellets. Cleanliness of the combustion chamber and conveyor is essential for maintaining efficiency and preventing blockages.

Key checkpoints during routine inspection include the condition of the heating coil, the alignment of the conveyor and the integrity of the electrical connections. The control unit should be checked for error messages and any signs of wear or malfunction. The system should be tested periodically to ensure that all functions operate as intended.

Frequently asked questions

Can the Atmos A 25 be used with dark pellets?
No, the burner is specifically designed for high-quality white pellets and may not perform optimally with darker, lower-grade pellets.

Is a pneumatic cleaning system required for the Atmos A 25?
It is not required for normal operation with high-quality pellets, but is recommended for use with lower-grade pellets to maintain cleanliness and efficiency.

How often should the ash be removed from the Atmos A 25?
Ash removal should be performed every 7 to 30 days, depending on the quality of the pellets and the operating load of the system.

Can the Atmos A 25 be integrated with a solar system?
Yes, the electronic control unit supports integration with a solar system, allowing for hybrid operation and improved energy efficiency.