CP25KGSP Set for ATMOS A 25 Burner

Product detailed description

Pellet boilers equipped with ATMOS A 25 and A 45 burners require regular maintenance to ensure efficient operation, particularly when using pellets with higher impurity content such as bark or dust. In such installations, the accumulation of clinkers and ash in the combustion chamber can reduce efficiency and increase service intervals. The CP25KGSP set provides an automated solution for cleaning the combustion chamber at regular intervals or after each burn cycle. This system is commonly used in residential and commercial heating systems where pellet boilers are integrated with central heating circuits and flue gas extraction systems.

For installers and service technicians, the CP25KGSP set is a retrofit solution for existing pellet burners. The pneumatic cleaning mechanism ensures rapid and reliable removal of combustion byproducts without manual intervention, reducing downtime and maintenance requirements.

Technical parameters

Nominal Diameter	DN 28
Weight	35.926 kg
Code	H0544
Brand	Atmos

The nominal diameter of 28 mm (DN 28) is critical for ensuring compatibility with the burner’s existing air ducting and pneumatic components. This dimension determines the flow capacity of the cleaning air and must align with the burner’s design to maintain optimal performance. The set is specifically engineered for ATMOS A 25 and A 45 burners, and its parameters are essential for correct sizing and system integration.

Installation and connection

The installation of the CP25KGSP set involves connecting the 1 m pneumatic hose with DN 28 internal diameter and 3/4 inch thread to the burner’s air supply system. The control valve must be wired to the burner’s electronics via the designated terminal VV(15). It is important to verify the compatibility of the control module AD02 with the boiler’s exhaust fan and the AD04 module with the burner’s electronics. Common installation errors include incorrect threading of the hose fittings and misalignment of the cleaning channel with the combustion chamber. The cleaning channel must be securely fastened with the locking nut and washer to prevent air leaks during operation.

Compatibility and accessories

The CP25KGSP set is compatible with ATMOS A 25 and A 45 burners. It is also suitable for boilers with exhaust fans, including models DC18SP, DC25SP, DC30SPX, DC32SP, C18SP, and C25SP (from production number 343500 onwards). Additional components required for full functionality include the AD02 and AD04 modules. A 1500 W compressor with a 6.0 L air tank is included in the extended set. For installations where cleaning should not occur during nighttime hours, a special timer must be purchased separately; standard timers are not compatible with the system’s control logic.

Technical background for designers

The CP25KGSP set operates by directing compressed air through a dedicated channel into the combustion chamber to dislodge clinkers and ash. The system uses a control valve activated by the burner’s electronics, ensuring cleaning occurs at the appropriate intervals. The materials used in the set, including the hose and fittings, are selected for durability and resistance to high temperatures. The integration of the AD02 and AD04 modules allows for precise control of the exhaust fan and compressor, enhancing the system’s efficiency. The effectiveness of the cleaning process is influenced by the air pressure supplied by the compressor and the alignment of the cleaning channel with the combustion chamber.

Service and operation

Regular inspection of the pneumatic hose and fittings is necessary to ensure there are no leaks or blockages. The cleaning channel should be checked for wear or damage that could affect performance. The control valve and modules must be tested periodically to confirm they respond correctly to the burner’s signals. No specific service intervals are provided in the brief; however, maintenance should be carried out as part of routine system checks. The system should be deactivated during servicing to prevent accidental activation.

Frequently asked questions

Can the CP25KGSP set be used with ATMOS A 85 burners?
No, the ATMOS A 85 is supplied with pneumatic cleaning as standard and does not require this retrofit set.

Is the 1500 W compressor included in the standard set?
No, the compressor is part of the extended set and must be ordered separately if required.

Can standard switching hours be used to control cleaning intervals?
No, the system requires a special timer that is compatible with the control logic of the burner.

Can the set be installed on older models of ATMOS A 25 burners?
Yes, but it is recommended to verify the production number and ensure the burner is equipped with a servomotor and compatible electronics.