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Gas condensing boiler
MGK-2_800-1000

Floorstanding gas condensing boiler for condensing operation and DHW heating for natural gas E, LL
Model / Performance
  • MGK-2-800
  • MGK-2-1000
  • Key Facts
  • Specification
  • Downloads
  • Modulation range 17 - 100 %
  • Standard seasonal efficiency [to DIN] net cv up to 110 %
  • No minimum volume of circulation water
  • Option to integrate neutralising system set with booster and condensate removal pump
  • Extremely quiet operation
  • Fully encased and thermally insulated
  • Compact design, fits through a 1000 mm door
  • Can be split for transportation – largest module 1460 x 1295 x 790 mm
  • ISM7i LAN/WLAN module allows communication via smartphone, laptop or PC
  • 0-10 V input for BMS system
  • 230 V fault message output
  • Common sensor connection option for low loss header
  • Integral back draught safety device for flue cascade operation
  • Possibility of cascade operation with up to 5 appliances
Please choose model
Gas condensing boiler MGK-2_800-1000
Type MGK-2 800 1000

Output / input

Rated heating output at 80/60 °C kW 700 931
Rated heating output at 50/30 °C kW 752 1000
Rated heat input kW 710 942
Lowest heating output (modulating) at 50/30 kW 133 174
Lowest heating output (modulating) at 80/60 kW 119 157
Lowest heat input (modulating) kW 122 160
Heat input modulation range % 17-100 17-100

Efficiency

h 80/60 at Qmax % 98.7 98.8
h 50/30 at Qmax % 106 106.2
h TR30 at 30% % 108.8 110

Standard seasonal efficiency [to DIN]

at 40 / 30°C % 110.1 110.1
at 75 / 60°C % 106.3 106.3

Dimension

Total height A mm 1460 1460
Total width / width excl. gas/air connection B mm 2265 / 1700 2265 / 1700
Total depth / depth excl. casing C mm 970 / 950 970 / 950
Flue diameter mm 250 250
Ventilation air connection mm 200 200

Weight

Total weight kg 625 680

Connections

Heating flow DN/PN 100/6 100/6
Heating return DN/PN 100/6 100/6
Gas connection R 2,5"" 2.5
Gas category I2ELL

Gas supply details

Natural gas E/H (9.45 kWh/m³) m³/h 75 99.5
Natural gas LL (8.82 kWh/m³) m³/h 80.3 106.6
Gas supply pressure mbar 20 20

Heating circuit

Water capacity of the heating water heat exchanger l 80.5 92.6
Max. total pressure bar 6 6
Max. flow temperature °C 90 90
Heating water pressure drop with 20 K spread mbar 127 123
Standby losses excess temperature 30 / 50 K % 0,07 / 0,13 0,06 / 0,10

Flue gas

Type of flue installation Type B23, B23P, C43, C53, C63, C83, C93
Max. flue gas temperature °C 80 80
Condensate pH value approx. 4,0 approx. 4,0
Max. flue gas temperature 80/60 – 50/30 at Qmax °C 65-42 65-40
Max. flue gas temperature 80/60 – 50/30 at Qmin °C 62-32 62-32
Max. flue gas mass flow rate g/s 307 407
Amount of condensate at 40/30 °C l/h 77 93
Flue gas category to DVGW G 635 G52 G52

Gas fan

Available gas fan draught Pa 200 250
Electrical connection 1~ NPE / 230VAC / 50Hz / 10A/B 3~ NPE 400VAC/50Hz
Electrical connection alternatively 3~ NPE / 400VAC / 50Hz -
Phases / voltage / frequency 1 ~ NPE / 230 VAC / 50 Hz 3 ~ NPE / 400 VAC / 50 Hz
Fuse protection 16 A/B 16 A/C
Heating circuit pump output / ZHP / fuse protection 1~ NPE / 230VAC / 50Hz / max. 7A
alternatively 3~NPE / 400VAC / 50Hz / max. 7A
Power consumption (partial load/full load) W 50 - 850 60 - 1835
Power consumption on standby W 8 11
IP rating IP20

Noise emissions

Sound power to EN 15036 Part 1, room sealed dB(A) 67.7 73.3
Sound power to EN 15036 Part 1, open flue dB(A) 85.1 83.5
Sound pressure level in room, 1 m in front of MGK-2, room sealed 1) dB(A) 65-70 70-75
Sound pressure level in room, 1 m in front of MGK-2, open flue 1) dB(A) 82-87 80-85