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Buderus commercial and domestic boilers

[SB 615 185kW]

Dimensions

Parameter Value
Length, L (without burner) 1816mm
Length, LK 1746mm
Width, B 900mm
Width for access 720mm
Height max with controls, H 1606mm
Height side mounted controls, HK 1376mm
Weight 620kg
Length of burner, LBR 500mm
Flue gas connection, Ø DAA (internal) 183DN
Flue gas connection, HAA 300mm
Combustion chamber, Length 1460mm
Combustion chamber, Ø 453mm
Burner door, Depth 185mm
Burner door, HB 985mm
Boiler flow connection, Ø VK 65DN
Boiler flow connection, HVK 1239mm
Boiler return connection, Ø RK1 65DN
Boiler return connection, HRK1 142mm
Boiler return connection, A1 275mm
Boiler return connection, Ø RK2 R1½DN
Boiler return connection, HRK2 495mm
Boiler return connection, A2 295mm
Safety outlet from the heat exchanger, Ø VSL R1¼DN
Safety outlet from the heat exchanger, HVSL 1180mm
Safety outlet from the heat exchanger, A3 160mm
Condensate drain, HAKG 164mm
Condensate drain, A4 100mm
Drain, HEL 85mm
Base frame, BGR 720mm
Base frame, A 285mm

Technical Parameters

Parameter Value
Output 185kW
Nominal heat output at 75/60 °C, Full load 169.2kW
Nominal heat output at 75/60 °C, Part load 73.5kW
Nominal heat output at 40/30 °C, Full load 185kW
Nominal heat output at 40/30 °C, Part load 75.6kW
Max working pressure 4bar
Max flow temperature 120°C
Rated heat input 69.3kW - 173.2kW
Water content 555l
Pressure at flue outlet 50Pa
Flue gas resistance 1.55mbar
Gas content 333l
Type approval number 06-223-706
CE certification, product ID no. CE-0085 AT 0075
Efficiency (NCV) 109%
Flue gas temperature, at 40/30 °C Full Load 40°C
Flue gas temperature, at 40/30 °C Part load 33°C
Flue gas temperature, at 75/60 °C Full load 66°C
Flue gas temperature, at 75/60 °C Part load 45°C
Flue gas mass flow rate, at 40/30 °C Full load 0.0704kg/s
Flue gas mass flow rate, at 40/30 °C Part load 0.0277kg/s
Flue gas mass flow rate, at 75/60 °C Full load 0.0738kg/s
Flue gas mass flow rate, at 75/60 °C Part load 0.0295kg/s
CO2 content 10%

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