With the high levels of building insulation now in place in most properties, the requirements for heating output are reducing – and this trend is set to continue with some experts predicting a drop in the boiler load due to heating from around 75% to as low as 45%. At
the same time, hot water usage is increasing year-by year as demand rises for luxury bathing facilities such as high performance showers and spa baths. If hot
water demand has risen to 55% of the boiler load, the natural next step is to gain as much efficiency in hot water mode as possible.
MCBA electronic control fitted as standard. Managing boiler and burner functions, this helps reduce the stop/start cycle significantly, ultimately saving fuel and component wear and tear.
Additional controls available, please discuss your requirements with our technical department.
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Input max. (heating) (kW) : |
34,9 (G20) - 30,6 (G31) |
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Input min. (heating) (kW) : |
10 (G20-G31) |
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Output power max. (80/60°C) (kW) : |
34,1 (G20) - 29,9 (G31) |
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Output power min. (80/60°C)) (kW) : |
9,8 (G20-G31) |
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Efficiency (max. output) 80/60°C (%) : |
97 |
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Efficiency at 30% load (EN677) (%) : |
107,5 |
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Efficiency in DHW mode (Dt: 30K) (%) : |
105,9 |
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CO2 (max output) G20 (%) : |
9,4 |
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CO2 (min output) G20 (%) : |
9,0 |
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CO2 (max. output) G31 (%) : |
10,5 |
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CO2 (min. output) G31 (%) : |
10,1 |
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CO emissions (max.output) (mg/kWh) : |
70 (G20) / 105 (G31) |
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CO emissions (min.output) (mg/kWh) : |
6 (G20) / 17 (G31) |
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NOx emissions (max.output) (mg/kwh) : |
59 (G20) |
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NOx emissions (min. output) (mg/kWh) : |
29 (G20) / 31 (G31) |
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NOx emissions (weighted) (mg/kWh) : |
40.3 |
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NOx class (EN483) () : |
5 |
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Flue gas temperature at max.output 80/60°C (°C) : |
60 |
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Flue gas temperature at max.output 50/30°C (°C) : |
35.3 |
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Chimney: Max.pressure drop in flue pipe (Pa) : |
130 |
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Chimney: max. length of concentric flue pipe (m) : |
20 |
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Chimney connection Ø (mm) : |
80/80 - 80/125 |
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Chimney connection type () : |
B23(P)-C13(X)-C33(X)-C43(X)-C53(X)-C63(X)-C83(X)-C |
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Gas supply pressure G20/25 (mbar) : |
20-25 |
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Gas supply pressure G30/31 (mbar) : |
30-37-50 |
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Gas flow rate G20 (max.output) (m³/h) : |
3,7 |
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Gas flow rate G25 (max.output) (m³/h) : |
4,3 |
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Gas flow rate G31 (max.output) (kg/h) : |
2.4 |
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Capacity (primary) (L) : |
86,5 |
|
Capacity (total) (L) : |
186,5 |
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Heating surface DHW tank (m²) : |
2,2 + 0,6 |
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Water pressure drop boiler at Δt = 20°C (mbar) : |
30 |
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Connection - heating (Ø) : |
1" F |
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Connection - DHW (Ø) : |
1" M |
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Connection - gas (Ø) : |
3/4" M |
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Peak flow at 40 °C (L/10’) : |
472 |
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Peak flow 1st hour at 40 °C (L/60') : |
1322 |
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Continuous flow at 40°C (L/h) : |
1070 |
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Peak flow at 45 °C (L/10’) : |
389 |
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Peak flow 1st hour at 45 °C (L/60') : |
1116 |
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Continuous flow at 45 °C (L/h) : |
917 |
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Peak flow at 60 °C (L/10’) : |
243 |
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Peak flow 1st hour at 60 °C (L/60’) : |
731 |
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Continuous flow at 60 °C (L/h) : |
642 |
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Heating time from 10 to 80°C (Heat source: boiler) (min) : |
37 |
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Max. operating temperature (heating) (°C) : |
90 |
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Max. operating temperature (DHW) (°C) : |
80 |
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Max.service pressure heating (primary) (bar) : |
3 |
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Max.service pressure (DHW) (bar) : |
10 |
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Protection () : |
IP30 |
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Operating voltage (50Hz) (V) : |
230 |
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Electrical current rating (A) : |
0,8 |
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Electrical consumption (W) : |
184 |
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Dim. - Width or Diameter (w/o conn.) (mm) : |
600 |
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Dim. - Depth (w/o conn.) (mm) : |
670 |
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Dim. - Height (w/o conn.) (mm) : |
1700 |
|
Weight (empty) (kg) : |
174 |
