Technical Specifications:
The document provides detailed technical specifications for the Pellematic Plus condensing boiler technology, with models ranging from PE(S)K 12 to PE(S) 32. The boiler-rated power varies from 12 kW to 32 kW, with partial load capacities ranging from 3.4 kW to 10 kW. The energy efficiency class is A++, with an energy efficiency index (EEI) ranging from 124.8 to 132.16. Seasonal space heating energy efficiency is between 85.97% and 91%.

Boiler Efficiency:
The boiler efficiency at rated power is between 100% and 102.8%, while at partial power, it ranges from 98% to 102.3%.

Water and Pressure Specifications:
Water capacity is either 66 liters or 104 liters, depending on the model. The water supply/return dimensions are specified in Zoll and DN, with water resistance at 10K and 20K provided in mBar. The operating pressure maximum is 3 Bar, with a test pressure of 4.6 Bar.

Flue Gas Specifications:
The fire vault temperature ranges from 900°C to 1100°C. Flue gas temperature at rated power and partial load is between 30°C and 40°C. The flue gas volume at rated power and partial load is specified in kg/h and m3/h.

Fuel Requirements:
The boilers use pellets made of 100% natural wood, conforming to EN 14961–2, class A1. The calorific value is 16.5 MJ/kg or 4.6 kWh/kg, with a bulk density of at least 600 kg/m3 and a maximum water content of 10%.

Dimensions and Weight:
The overall weight of the boilers, including packing, ranges from 435 kg to 520 kg. The internal ash pan volume is either 25 liters or 30 liters, with an external ash box volume of 25 kg.

Electrical Components:
The connection value is 230 VAC, 50Hz, 16A. Various components such as the main drive, drive motor, suction turbine, and combustion air blower have specified power ratings in watts.

Manufacturer Information:
The document is authored by ÖkoFEN Forschungs- & EntwicklungsgesmbH, located in Niederkappel, Austria. Contact details and a disclaimer about potential modifications are provided.