Specifications Table for GCU 5XX

GCU compact 515 GCU compact 515 Biv GCU compact 524 Biv GCU compact 524 GCU compact 533 GCU compact 533 Biv
Gas Connection Diameter mm 20 20 20 20 20 20
  NOx class   6 6 6 6 6 6
  NOx level (G20) mg/kWh 37 37 35 35 46 46
Central heating Heat input Qn (net calorific value) Nom Min kW 6.5 6.5 6.5 6.5 6.5 6.5
      Max kW 15.5 15.5 25.3 25.3 32.5 32.5
  Heat input Qn (gross calorific value) Nom Min kW 7.2 7.2 7.2 7.2 7.2 7.2
      Max kW 17.2 17.2 28.1 28.1 36.1 36.1
  Efficiency Net calorific value % 96.7 96.7 95.8 95.8 97.4 97.4
    Gross calorific value % 87.8 87.8 86.3 86.3 87.8 87.8
Domestic hot water Heat input (net calorific value) Qnw Nom Min kW 6.5 6.5 6.5 6.5 6.5 6.5
      Max kW 15.5 15.5 25.3 25.3 32.5 32.5
  Heat input (gross calorific value) Qnw Nom Min kW 7.2 7.2 7.2 7.2 7.2 7.2
      Max kW 17.2 17.2 28.1 28.1 36.1 36.1
  Output Min kW 6.0 6.0 6.0 6.0 6.0 6.0
  Efficiency NL characteristics (DIN4708)   2.1 2.1 2.1 2.1 2.2 2.2
Space heating General Seasonal space heating eff. class   A A A A A A
Supply air Concentric   Yes Yes Yes Yes Yes Yes
Flue gas Mass flow (G20) Max kg/h 24.9 24.9 40.7 40.7 55.1 55.1
  Mass flow (G25) Max kg/h 20.5 20.5 31.6 31.6 44.3 44.3
  Mass flow (G31) Max kg/h 22.6 22.6 35.8 35.8 45.3 45.3
Casing Colour   Traffic white (RAL9016) / Dark grey (RAL7011) Traffic white (RAL9016) / Dark grey (RAL7011) Traffic white (RAL9016) / Dark grey (RAL7011) Traffic white (RAL9016) / Dark grey (RAL7011) Traffic white (RAL9016) / Dark grey (RAL7011) Traffic white (RAL9016) / Dark grey (RAL7011)
Dimensions Unit Height Casing mm 1,950 1,950 1,950 1,950 1,950 1,950
Tank Material   Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen
Domestic hot water heating General Declared load profile   XL XL XL XL XL XL
    Water heating energy efficiency class   A A A A A A
Notes_Description 1 1 1 1 1 1