| D2U50GB015AB | D2U50GB020AB | D2U50GB024AB | D2U50GB028AB | D2U50GB015AA (Archived) | D2U50GB020AA (Archived) | D2U50GB024AA (Archived) | D2U50GB028AA (Archived) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Heat losses | Stand-by boiler Ps | kW | 0.0 | 0.0 | 0.0 | 0.0 | ||||||
| Stand-by boiler | kWh/24h | 1.7 | 1.7 | 1.7 | 1.7 | |||||||
| Stand-by boiler qS | kW | 0.0 | 0.0 | 0.0 | 0.0 | |||||||
| Domestic hot water | Heat input (gross calorific value) Qnw | Nom | Max | kW | 16.7 | 22.2 | 26.6 | 31.1 | 16.7 | 22.2 | 26.6 | 31.1 |
| Min | kW | 3.3 | 3.3 | 4.4 | 4.4 | 3.3 | 3.3 | 4.4 | 4.4 | |||
| Output | Min | kW | 3.0 | 3.0 | 4.0 | 4.0 | 3.0 | 3.0 | 4.0 | 4.0 | ||
| Temperature | Max | °C | 70 | 70 | 70 | 70 | 85 | 85 | 85 | 85 | ||
| Heat input (net calorific value) Qnw | Nom | Min | kW | 3.0 | 3.0 | 4.0 | 4.0 | 3.0 | 3.0 | 4.0 | 4.0 | |
| Max | kW | 15.0 | 20.0 | 24.0 | 28.0 | 15.0 | 20.0 | 24.0 | 28.0 | |||
| Efficiency | NL characteristics (DIN4708) | 2.1 | 2.1 | 2.1 | 2.2 | 2.1 | 2.1 | 2.1 | 2.2 | |||
| Flue gas | Mass flow (G25) | Max | kg/h | 22.2 | 29.7 | 35.3 | 40.5 | 22.2 | 29.7 | 35.3 | 40.5 | |
| Mass flow (G20) | Max | kg/h | 23.2 | 30.9 | 36.8 | 42.2 | 23.2 | 30.9 | 36.8 | 42.2 | ||
| Mass flow (G31) | Max | kg/h | 22.5 | 30.0 | 35.7 | 41.0 | 22.5 | 30.0 | 35.7 | 41.0 | ||
| Temperature | Max | °C | 63 | 69 | 64 | 68 | 63 | 69 | 64 | 68 | ||
| Supply air | Concentric | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||
| Domestic hot water heating | General | Water heating energy efficiency class | A | A | A | A | A | A | A | A | ||
| Declared load profile | XL | XL | XL | XL | XL | XL | XL | XL | ||||
| Dimensions | Unit | Height | Casing | mm | 1,895 | 1,895 | 1,895 | 1,895 | 1,895 | 1,895 | 1,895 | 1,895 |
| Casing | Colour | Traffic white (RAL9016) / Dark grey (RAL7011) | Traffic white (RAL9016) / Dark grey (RAL7011) | Traffic white (RAL9016) / Dark grey (RAL7011) | Traffic white (RAL9016) / Dark grey (RAL7011) | Traffic white (RAL9016) / Dark grey (RAL7011) | Traffic white (RAL9016) / Dark grey (RAL7011) | Traffic white (RAL9016) / Dark grey (RAL7011) | Traffic white (RAL9016) / Dark grey (RAL7011) | |||
| Tank | Material | Polypropylen | Polypropylen | Polypropylen | Polypropylen | Polypropylen | Polypropylen | Polypropylen | Polypropylen | |||
| Space heating | General | ηs (Seasonal space heating efficiency) | % | 91 | 92 | 92 | 92 | 91 | 92 | 92 | 92 | |
| Seasonal space heating eff. class | A | A | A | A | A | A | A | A | ||||
| Central heating | Heat input Qn (gross calorific value) | Nom | Min | kW | 3.3 | 3.3 | 4.4 | 4.4 | 3.3 | 3.3 | 4.4 | 4.4 |
| Max | kW | 16.7 | 22.2 | 26.6 | 31.1 | 16.7 | 22.2 | 26.6 | 31.1 | |||
| Water temperature | Max | °C | 85 | 85 | 85 | 85 | 90 | 90 | 90 | 90 | ||
| Output Pn at 80/60°C | Min | kW | 2.9 | 2.9 | 3.9 | 3.9 | 2.9 | 2.9 | 3.9 | 3.9 | ||
| Nom | kW | 14.6 | 19.5 | 23.4 | 27.2 | 14.6 | 19.5 | 23.4 | 27.2 | |||
| Heat input Qn (net calorific value) | Nom | Min | kW | 3.0 | 3.0 | 4.0 | 4.0 | 3.0 | 3.0 | 4.0 | 4.0 | |
| Max | kW | 15.0 | 20.0 | 24.0 | 28.0 | 15.0 | 20.0 | 24.0 | 28.0 | |||
| Output Pnc at 50/30°C | Min | kW | 3.2 | 3.2 | 4.3 | 4.3 | 3.2 | 3.2 | 4.3 | 4.3 | ||
| Nom | kW | 15.7 | 20.9 | 25.0 | 29.1 | 15.7 | 20.9 | 25.0 | 29.1 | |||
| Gas | NOx level (G20) | mg/kWh | 23 | 31 | 31 | 31 | 26 | 34 | 34 | 34 | ||
| Consumption (G25) | Min | m³/h | 0.35 | 0.35 | 0.47 | 0.47 | 0.35 | 0.35 | 0.47 | 0.47 | ||
| Max | m³/h | 1.75 | 2.33 | 2.80 | 3.26 | 1.75 | 2.33 | 2.80 | 3.26 | |||
| NOx class | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | ||||
| Connection | Diameter | mm | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | ||
| Consumption (G20) | Max | m³/h | 1.59 | 2.11 | 2.54 | 2.96 | 1.59 | 2.11 | 2.54 | 2.96 | ||
| Min | m³/h | 0.32 | 0.32 | 0.42 | 0.42 | 0.32 | 0.32 | 0.42 | 0.42 | |||
| Consumption (G31) | Min | m³/h | 0.16 | 0.16 | 0.27 | 0.27 | 0.16 | 0.16 | 0.27 | 0.27 | ||
| Max | m³/h | 0.62 | 0.82 | 0.98 | 1.15 | 0.62 | 0.82 | 0.98 | 1.15 | |||
| Notes | (1) - Heatloss according to EN12897 | (1) - Heatloss according to EN12897 | (1) - Heatloss according to EN12897 | (1) - Heatloss according to EN12897 | ||||||||