Specifications Table for R2U50GC-A

R2U50GC015AB R2U50GC020AB R2U50GC024AB R2U50GC028AB R2U50GC015AA (Archived) R2U50GC020AA (Archived) R2U50GC024AA (Archived) R2U50GC028AA (Archived)
Gas Connection Diameter mm 20 20 20 20 20 20 20 20
  Consumption (G20) Min m³/h 0.32 0.32 0.42 0.42        
    Max m³/h 1.59 2.11 2.54 2.96        
  Consumption (G25) Min m³/h 0.35 0.35 0.47 0.47        
    Max m³/h 1.75 2.33 2.80 3.26        
  Consumption (G31) Min m³/h 0.16 0.16 0.27 0.27        
    Max m³/h 0.62 0.82 0.98 1.15        
  NOx class   6 6 6 6 6 6 6 6
  NOx level (G20) mg/kWh 23 31 31 31 26 34 34 34
Central heating Heat input Qn (net calorific value) Nom Min kW 3.0 3.0 4.0 4.0 3.0 3.0 4.0 4.0
      Max kW 15.0 20.0 24.0 28.0 15.0 20.0 24.0 28.0
  Heat input Qn (gross calorific value) Nom Min kW 3.3 3.3 4.4 4.4 3.3 3.3 4.4 4.4
      Max kW 16.7 22.2 26.6 31.1 16.7 22.2 26.6 31.1
  Output Pn at 80/60°C Min kW 2.9 2.9 3.9 3.9        
    Nom kW 14.6 19.5 23.4 27.2        
  Output Pnc at 50/30°C Min kW 3.2 3.2 4.3 4.3        
    Nom kW 15.7 20.9 25.0 29.1        
  Water temperature Max °C 85 85 85 85        
Domestic hot water Heat input (net calorific value) Qnw Nom Min kW 3.0 3.0 4.0 4.0 3.0 3.0 4.0 4.0
      Max kW 15.0 20.0 24.0 28.0 15.0 20.0 24.0 28.0
  Heat input (gross calorific value) Qnw Nom Min kW 3.3 3.3 4.4 4.4 3.3 3.3 4.4 4.4
      Max kW 16.7 22.2 26.6 31.1 16.7 22.2 26.6 31.1
  Output Min kW 3.0 3.0 4.0 4.0 3.0 3.0 4.0 4.0
  Temperature Max °C 70 70 70 70        
  Efficiency NL characteristics (DIN4708)   2.1 2.1 2.1 2.2 2.1 2.1 2.1 2.2
Space heating General Seasonal space heating eff. class   A A A A A A A A
Heat losses Stand-by boiler kWh/24h         1.7 1.7 1.7 1.7
  Stand-by boiler Ps kW 0.0 0.0 0.0 0.0        
  Stand-by boiler qS kW 0.0 0.0 0.0 0.0        
Supply air Concentric   Yes Yes Yes Yes Yes Yes Yes Yes
Flue gas Temperature Max °C 63 69 64 68        
  Mass flow (G20) Max kg/h 23.2 30.9 36.8 42.2 23.2 30.9 36.8 42.2
  Mass flow (G25) Max kg/h 22.2 29.7 35.3 40.5 22.2 29.7 35.3 40.5
  Mass flow (G31) Max kg/h 22.5 30.0 35.7 41.0 22.5 30.0 35.7 41.0
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) Traffic white (RAL9016) / Dark grey (RAL7011) Traffic white (RAL9016) / Dark grey (RAL7011)
Dimensions Unit Height Casing mm 1,895 1,895 1,895 1,895 1,895 1,895 1,895 1,895
Tank Material   Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen
Domestic hot water heating General Declared load profile   XL XL XL XL XL XL XL XL
    Water heating energy efficiency class   A A A A A A A A
Notes Heatloss according to EN12897 Heatloss according to EN12897 Heatloss according to EN12897 Heatloss according to EN12897