ATMOS D 15 PX

Product detailed description

- 4.5-15 kW compact ecological automatic pellet boiler

ATMOS DP15PX is supplied as a complete unit with a built-in conveyor, 175 L pellet hopper and ATMOS A25 pellet burner.

Its compact design allows installation in small boiler rooms.

The boiler is designed for electronically controlled pellet combustion with automatic fuel ignition. The pellet burner is built into the front part of the boiler in the door of the lower combustion chamber. This chamber is lined with ceramic shapes for ideal flame burnout with high efficiency and also serves as a space for ash. At the rear of the boiler is a tube heat exchanger fitted with segmented turbulators with a rough (operational) cleaning function without the need to remove them.
The boiler body is manufactured as a welded assembly of steel sheets 3–5 mm thick. On the outside it is thermally insulated with mineral felt and Sibral insulation, placed under the sheet metal covers of the outer boiler casing.
The fuel hopper is located in the upper part, from which pellets are conveyed to the burner by means of a screw conveyor. Fuel dosing is fully automatically controlled. At the front of the boiler is a panel with a main switch, a pellet burner switch for cleaning purposes, an operating thermostat, a safety thermostat, a thermometer and a 6.3 A fuse.
The D15 PX boiler is equipped with an exhaust fan.
The boiler is not equipped with a cooling loop against overheating, because thanks to the small amount of fuel in the burner there is no risk of the boiler overheating in the event of a power failure.

Frequently Asked Questions

• How to choose the right output for a solid fuel boiler? Base your choice on the calculated heat loss of the heated building, but for wood/coal boilers also consider that the boiler burns for several hours at essentially constant output during a single filling - it is therefore common practice to supplement the boiler with a buffer tank, which stores excess heat for later use instead of the boiler having to be inefficiently throttled down.
• What else do I need for the installation of this boiler? In addition to the boiler itself, the system usually requires: a buffer tank of adequate volume, a circulation pump (often already with a built-in Laddomat or thermoregulatory valve against low-temperature corrosion of the boiler), a safety valve, an expansion tank and a flue/chimney with sufficient draught corresponding to the boiler output - exact draught values can be found in the technical parameters above.
• What fuel is suitable and what is not? Use only the fuel recommended by the manufacturer for the given model (usually split wood of a defined length and moisture content, or brown coal briquettes or coal depending on the type of boiler) - unsuitable or too moist fuel reduces efficiency, increases tar and deposit formation and can damage the boiler.
• What about chimney inspection and legislation? Before putting the boiler into operation, as well as regularly during its use (usually once a year for solid fuels), a chimney inspection/cleaning by an authorized chimney sweep is legally required - without the relevant inspection document, an insurance claim in case of fire may also be disputable.
• How much maintenance does the boiler require? This usually includes regular ash removal and cleaning of the heating surfaces/flue gas paths from soot (interval depending on intensity of use, usually in the order of weeks), and once a year a thorough inspection including seals and the chimney.
• Can I install the boiler myself? The actual placement and connection of the boiler to the heating system, chimney and safety elements should be carried out or at least professionally checked by a heating technician - this is a device with an open flame, high temperatures and pressure elements, where a connection error can be a safety risk.