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Buderus commercial and domestic boilers

[GB 312 320kW]

Dimensions

Parameter Value
Length, LK 1202mm
Length, LG 2243mm
Length, LG1 1949mm
Width, BG 1995mm
Net weight 480kg
Installation dimensions, K 433mm
Installation dimensions, M 455mm
Installation dimensions, N 375mm
Installation dimensions, O 563mm
Installation dimensions, R 775mm
Installation dimensions, S 367mm
Installation dimensions, S1 125mm
Installation dimensions, U 263mm
Flue gas connection, ØDAA 200DN
Flue gas connection, HAA 1342mm
Flue gas connection, HAA1 989mm
Flue gas connection, A2 384mm
Boiler flow connection, ØVK 80DN
Boiler flow connection, HVK 1299mm
Boiler return connection, Ø RK 80DN
Boiler return connection, HRK 330mm
Distance, BZ 795mm
Air sealed, ØRLU 110DN
Air sealed, HRLU 1018mm
Gas connection, ØGAS R1½"
Gas connection, HGAS 1143mm
Gas connection, A1 374mm

Technical Parameters

Parameter Value
Output 320kW
Nominal heat output at 80/60 °C, Full load 302kW
Nominal heat output at 80/60 °C, Part load 44kW
Nominal heat output at 50/30 °C, Full load 320kW
Nominal heat output at 50/30 °C, Part load 50kW
Rated heat input, Part load 46kW
Rated heat input, Full load 310kW
Max working pressure 4bar
Max flow temperature 80°C
Electrical power consumption, full load 380W
Electrical power consumption, part load 45W
Gas pressure 17 - 24 mbar
Water content 40l
Electrical ingress protection IP 40
CE certification, product ID no. CE 0085BP5508
Pressure at flue outlet 100Pa
Water flow resistance, ΔT 20K 78mbar
Safety temperature letter 100°C
Electrical connection 230VAC 50Hz
Flue gas mass flow rate at 50/30 °C, Full load 140.4g/s
Flue gas mass flow rate at 50/30 °C, Part load 19.7g/s
Flue gas mass flow rate at 80/60 °C, Full load 139.8g/s
Flue gas mass flow rate at 80/60 °C, Part load 20.5g/s
CO2 content, Full load 9.1%
CO2 content, Part load 9.3%
Sound emission level, Full load 58dB(A)
Sound emission level, Part load 40dB(A)
Min flue gas temperature at 80/60 °C, Full load 76°C
Min flue gas temperature at 80/60 °C, Part load 53°C
Min flue gas temperature at 50/30 °C, Part load 28°C
Min flue gas temperature at 50/30 °C, Full load 54°C

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