ATMOS DC 32 SP
Code: DC32SPProduct detailed description
The Atmos DC32SP is a three-chamber hybrid boiler designed for use in residential and commercial heating systems where a combination of wood and pellet fuel is required. It is suitable for installations where a single boiler must handle both manual wood burning and fully automatic pellet combustion. The boiler integrates two separate combustion systems into one unit, reducing the need for multiple boilers and chimney systems. It is commonly used in heating systems with storage tanks, radiant floor heating, or central heating circuits. The modular design allows for flexible integration into existing or new systems, with a focus on high efficiency and low emissions.
Installers and technicians working with this boiler should consider the system layout, chimney requirements, and fuel storage. The boiler is designed for use with a single chimney and includes a flue gas outlet. It is important to ensure that the chimney draft meets the specified 24 Pa requirement. The boiler’s three-chamber design allows for independent operation of the wood and pellet combustion systems, ensuring stable performance and minimal interference between the two fuel types.
Technical parameters
| Boiler weight | 596 kg |
|---|---|
| Maximum wood length | 530 mm |
| Water content in boiler | 160 L |
| Fuel hopper capacity | 140 dm³ |
| Fuel – pellets | High-quality wood pellets with diameter 6 – 8 mm |
| Required chimney draft | 24 Pa |
| Energy efficiency class | A+ |
| Combustion class | 5 |
| Boiler power for wood | 35 kW, efficiency 88.9% |
| Boiler power for pellets | 6 – 20 kW, efficiency 91.2% |
| Code | DC32SP |
| Brand | Atmos |
Installation and connection
Installation of the Atmos DC32SP requires careful planning to ensure proper integration into the heating system. The boiler must be mounted on a stable, non-combustible base with sufficient clearance for maintenance and air circulation. The flue gas outlet connects to a single chimney, and the required draft of 24 Pa must be verified during commissioning. The boiler is supplied without a pellet burner, which must be ordered separately or reused from a previous installation. The burner is connected via a dedicated electrical and control interface, and the boiler includes automatic air intake control via a servo motor for both fuel types.
Common installation mistakes include incorrect chimney sizing, failure to verify draft, and improper positioning of the boiler in relation to fuel storage. The boiler’s maximum wood length of 530 mm must be considered when planning fuel storage and handling. Installers should also ensure that the boiler is connected to a storage tank with at least two temperature sensors (TV and TS) for optimal burner control. The boiler’s water jacket separates the combustion chambers, reducing thermal interference and ensuring stable operation.
Compatibility and accessories
The Atmos DC32SP is compatible with a range of pellet burners, including the A25 model with servo motor. The screw conveyor DA is available in different lengths to suit the layout of the fuel storage system. A pellet storage tank must also be ordered separately, with the size depending on the required operating time between refills. The boiler is designed for use with storage tanks and includes temperature sensors for automatic burner start after wood combustion. It is also compatible with control systems that support plug-and-play installation, reducing the need for additional programming or configuration.
Installers should ensure that all components are ordered together to avoid compatibility issues. The boiler’s modular design allows for future expansion or replacement of components without major system modifications. The boiler is not compatible with other fuel types, such as coal or oil, and must be used with the specified wood and pellet fuels. The hopper is designed for high-quality wood pellets with a diameter of 6–8 mm, and the wood fuel must have a moisture content of 12–20% and a diameter of 70–150 mm.
Technical background for designers
The Atmos DC32SP operates on a three-chamber principle, with the top two chambers dedicated to wood combustion and the bottom chamber for the pellet burner. The wood combustion chambers use a gasification process to maximize efficiency and reduce emissions. The pellet burner is mounted in the lower chamber and is separated by a water jacket to prevent thermal interference. The boiler’s ceramic lining in the pellet chamber ensures stable combustion and reduces wear from ash and soot.
The boiler’s design allows for independent operation of the two fuel systems, with each chamber optimized for its respective fuel type. The automatic air intake control via a servo motor ensures optimal combustion conditions for both wood and pellets. The boiler is equipped with a flue gas temperature sensor (AGF2) and a boiler temperature sensor (KTF20) for automatic control of the pellet burner. The system also includes two temperature sensors (TV and TS) for monitoring the storage tank and adjusting the burner output accordingly.
The boiler’s high thermal efficiency is achieved through the use of a large water content (160 L) and a well-insulated casing. The modular design allows for easy maintenance and replacement of components, such as the pellet burner or sensors. The boiler is suitable for integration into systems with storage tanks, where the thermal inertia of the water helps maintain stable output during load fluctuations. The boiler’s energy efficiency class A+ and combustion class 5 make it suitable for installations with strict environmental regulations.
Service and operation
Regular maintenance is essential for the long-term performance of the Atmos DC32SP. The boiler should be inspected for ash buildup in the combustion chambers and flue gas outlet. The pellet hopper and conveyor should be cleaned regularly to prevent blockages. The boiler’s sensors and control system should be checked for proper operation, and any faults should be addressed immediately. The boiler is designed for automatic operation, with the pellet burner starting automatically after wood combustion is complete.
Installers should ensure that the chimney draft is maintained at 24 Pa during operation. The boiler’s water jacket should be checked for leaks or corrosion, and the insulation should be inspected for damage. The boiler’s weight of 596 kg must be considered when planning the installation location and support structure. The boiler is not designed for frequent switching between fuel types, and the combustion systems should be operated separately to avoid unnecessary wear.
Frequently asked questions
Can the Atmos DC32SP be used with a storage tank?
Yes, the boiler is designed for use with storage tanks and includes temperature sensors (TV and TS) for automatic burner control based on tank temperature.
Is the pellet burner included with the boiler?
No, the boiler is supplied without a pellet burner. The A25 model with servo motor is recommended for automatic operation.
What is the maximum wood length that can be used?
The boiler accepts wood with a maximum length of 530 mm and a diameter of 70–150 mm, with a moisture content of 12–20%.
Can the boiler be used with other fuel types?
No, the boiler is designed exclusively for wood and high-quality wood pellets with a diameter of 6–8 mm. Other fuel types are not supported.
Additional parameters
| Category: | Three-chamber |
|---|---|
| Warranty: | 2 years |
| Weight: | 685.4 kg |
| Boiler output: | 29 – 40 kW |
| Fuel: | wood |
| Boiler output on pellets: | 6 – 20 kW, efficiency 91.2% |
| Boiler output on wood: | 35 kW, efficiency 88.9% |
| Boiler weight: | 596 kg |
| Combustion class: | 5 |
| Energy efficiency class: | A+ |
| Fuel – pellets: | high-quality wood pellets with a diameter of 6 – 8 mm |
| Max. log length: | 530 mm |
| Prescribed chimney draught: | 24 Pa |
| Water volume in the boiler: | 160 L |
| Wood hopper capacity: | 140 dm³ |
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