45 01202 662500 | sales@hamworthy-heating.com | hamworthy-heating.com Technical data 3,800-10,000kW models Boiler model Unit MHE3800 MHE4500 MHE5400 MHE6300 MHE7400 MHE8600 MHE10000 Energy Building regulation seasonal efficiency gross % 85.46 85.55 85.67 85.63 85.65 85.77 85.99 Boiler output 80/60 °C kW 3800 4500 5400 6300 7400 8600 10000 Equivalent MCPD Output (emission compliance) new installs kW 3800 4500 5400 6300 7400 8600 10000 Boiler input (gross) maximum kW 4594 5440 6507 7575 8888 10296 11920 Boiler input (nett) maximum kW 4139 4902 5863 6825 8008 9276 10740 Boiler output minimum 80/60 °C kW 880 1160 1473 1582 1935 2332 2907 Water Design flow rate @ 20°C ∆T rise l/s 45.45 53.83 64.59 75.36 88.52 102.87 119.62 Hydraulic resistance @ 20°C ∆T rise mbar 44 62 89 47 65 45 61 Design flow rate @ 10°C ∆T rise l/s 90.91 107.66 129.19 150.72 177.03 205.74 239.23 Hydraulic resistance @ 10°C ∆T rise mbar 176 248 356 188 260 180 244 Water flow rate - minimum m3/hr 72.8 86.2 103.4 120.7 141.8 164.8 191.6 Water pressure - maximum (minimum) barg 6 (1.8) 6 (1.8) 6 (1.8) 6 (2.2) 6 (2.2) 6 (2.2) 6 (2.2) Operating water temperature - maximum °C 90 90 90 90 90 90 90 Water return temperature - minimum °C 60 60 60 60 60 60 60 Gas Gas flow rate natural gas (G20) - maximum m 3 /h 438 518.7 620.4 722.2 847.4 981.6 1136.5 Gas inlet pressure natural gas (G20) - nominal/maximum mbar 60 Data on application Flue Approx. flue gas volume @ 15°C, 9% C0 2 , N.T.P m 3 /h 5503.2 6517.7 7809 9069 10668.2 12328.2 14265.2 Flue gas temperature @80/60 °C °C 198 196 190 185 185 178 169 NOx emission (0% excess oxygen, dry air free) European Class 5 mg/kWh 80-100 80-100 80-100 80-100 80-100 80-100 80-100 Combustion chamber resistance mbar 11.01 10.18 10.91 12.46 14.4 16.03 17.48 Misc. Nominal supply voltage - for boiler 230V 1Ph 50Hz Approx. shipping weight - excluding burner kg 7025 8425 10075 13545 16040 18620 21900 Do you know about the Medium Combustion Plant Directive (MCPD)? This legislation was enforced on 20th December 2018 to regulate the emissions of nitrogen oxides (NOX), sulphur dioxide (SO2) and dust into the air frommedium combustion plants (individual combustion plants with a rated thermal input ≥ 1MW but less than 50MW). Registration/permission is required from the relevant authority before the plant can be put to service. This affects our Melbury boilers from 895kW and above, and our Upton UF1050-3 model. Find out more about emission limits, dates and responsibilities: hamworthy-heating.com/mcpd BOILERS
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