D2U50GB015AB D2U50GB020AB D2U50GB024AB D2U50GB028AB D2U50GB015AA (Archived) D2U50GB020AA (Archived) D2U50GB024AA (Archived) D2U50GB028AA (Archived)
CE approval number CE-0063CR3574 CE-0063CR3574 CE-0063CR3574 CE-0063CR3574 CE-0063CR3574 CE-0063CR3574 CE-0063CR3574 CE-0063CR3574
Gas Device category   C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23 C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23 C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23 C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23 C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23 C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23 C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23 C33, C43, C53, C63, C83, B23P, B33, B53, B53P, C13x, C33x, C43x, C53x, C63x, C83x, C93, C93x, C13, B23
  Supply pressure Austria   G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar)
    Belgium   G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar)
    Croatia   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Czech Republic   G20 (20 mbar) / G31 (50 mbar) G20 (20 mbar) / G31 (50 mbar) G20 (20 mbar) / G31 (50 mbar) G20 (20 mbar) / G31 (50 mbar) G20 (20 mbar) / G31 (50 mbar) G20 (20 mbar) / G31 (50 mbar) G20 (20 mbar) / G31 (50 mbar) G20 (20 mbar) / G31 (50 mbar)
    Denmark   G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar)
    Finland   G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar)
    France   G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar)
    Germany   G20 (20 mbar), G25 (25 mbar), G31 (50 mbar) G20 (20 mbar), G25 (25 mbar), G31 (50 mbar) G20 (20 mbar), G25 (25 mbar), G31 (50 mbar) G20 (20 mbar), G25 (25 mbar), G31 (50 mbar) G20 (20 mbar), G25 (25 mbar), G31 (50 mbar) G20 (20 mbar), G25 (25 mbar), G31 (50 mbar) G20 (20 mbar), G25 (25 mbar), G31 (50 mbar) G20 (20 mbar), G25 (25 mbar), G31 (50 mbar)
    Greece   G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar)
    Hungaria   G20(25 mbar), G31 (30 mbar) G20(25 mbar), G31 (30 mbar) G20(25 mbar), G31 (30 mbar) G20(25 mbar), G31 (30 mbar) G20(25 mbar), G31 (30 mbar) G20(25 mbar), G31 (30 mbar) G20(25 mbar), G31 (30 mbar) G20(25 mbar), G31 (30 mbar)
    Ireland   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Italy   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Latvia   G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar)
    Lithuania   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Luxembourg   G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar)
    Netherlands   G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar)
    Norway   G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar)
    Portugal   G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar)
    Slovakia   G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar) G20 (20 mbar), G31 (50 mbar)
    Slovenia   G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar)
    Spain   G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar) G20 (20 mbar), G25 (25 mbar), G31 (37 mbar)
    Sweden   G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar)
    Switzerland   G20 (20 mbar), G31 (37 mbar), G31 (50 mbar) G20 (20 mbar), G31 (37 mbar), G31 (50 mbar) G20 (20 mbar), G31 (37 mbar), G31 (50 mbar) G20 (20 mbar), G31 (37 mbar), G31 (50 mbar) G20 (20 mbar), G31 (37 mbar), G31 (50 mbar) G20 (20 mbar), G31 (37 mbar), G31 (50 mbar) G20 (20 mbar), G31 (37 mbar), G31 (50 mbar) G20 (20 mbar), G31 (37 mbar), G31 (50 mbar)
    Turkey   G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar) G20 (20 mbar)
    United Kingdom   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
  Category Austria   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Belgium   I2E(S), I3P, II2E(s)3P I2E(S), I3P, II2E(s)3P I2E(S), I3P, II2E(s)3P I2E(S), I3P, II2E(s)3P I2E(S), I3P, II2E(s)3P I2E(S), I3P, II2E(s)3P I2E(S), I3P, II2E(s)3P I2E(S), I3P, II2E(s)3P
    Croatia   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Czech Republic   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Denmark   I2H I2H I2H I2H I2H I2H I2H I2H
    Finland   I2H I2H I2H I2H I2H I2H I2H I2H
    France   II2E+3P, II2Er3P, II2H3P, II2N3P II2E+3P, II2Er3P, II2H3P, II2N3P II2E+3P, II2Er3P, II2H3P, II2N3P II2E+3P, II2Er3P, II2H3P, II2N3P II2E+3P, II2Er3P, II2H3P, II2N3P II2E+3P, II2Er3P, II2H3P, II2N3P II2E+3P, II2Er3P, II2H3P, II2N3P II2E+3P, II2Er3P, II2H3P, II2N3P
    Germany   II2ELL3P, II2N3P II2ELL3P, II2N3P II2ELL3P, II2N3P II2ELL3P, II2N3P II2ELL3P, II2N3P II2ELL3P, II2N3P II2ELL3P, II2N3P II2ELL3P, II2N3P
    Greece   II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P
    Hungaria   I2H3P I2H3P I2H3P I2H3P I2H3P I2H3P I2H3P I2H3P
    Ireland   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Italy   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Latvia   I2H I2H I2H I2H I2H I2H I2H I2H
    Lithuania   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Luxembourg   I2E I2E I2E I2E I2E I2E I2E I2E
    Netherlands   I2H I2H I2H I2H I2H I2H I2H I2H
    Norway   I2H I2H I2H I2H I2H I2H I2H I2H
    Portugal   II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P
    Slovakia   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Slovenia   II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P
    Spain   II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P II2H3P, II2N3P
    Sweden   I2H I2H I2H I2H I2H I2H I2H I2H
    Switzerland   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
    Turkey   I2H I2H I2H I2H I2H I2H I2H I2H
    United Kingdom   II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P II2H3P
  Connection Diameter mm 20 20 20 20 20 20 20 20
  Consumption (G20) Min m³/h 0.32 0.32 0.42 0.42 0.32 0.32 0.42 0.42
    Max m³/h 1.59 2.11 2.54 2.96 1.59 2.11 2.54 2.96
  Consumption (G25) Min m³/h 0.35 0.35 0.47 0.47 0.35 0.35 0.47 0.47
    Max m³/h 1.75 2.33 2.80 3.26 1.75 2.33 2.80 3.26
  Consumption (G31) Min m³/h 0.16 0.16 0.27 0.27 0.16 0.16 0.27 0.27
    Max m³/h 0.62 0.82 0.98 1.15 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 2.9 2.9 3.9 3.9
    Nom kW 14.6 19.5 23.4 27.2 14.6 19.5 23.4 27.2
  Output Pnc at 50/30°C Min kW 3.2 3.2 4.3 4.3 3.2 3.2 4.3 4.3
    Nom kW 15.7 20.9 25.0 29.1 15.7 20.9 25.0 29.1
  Factory setting Output Nom kW 15 20 24 28 15 20 24 28
  Water pressure (PMS) Max bar 3 3 3 3 3 3 3 3
  Water temperature Max °C 85 85 85 85 90 90 90 90
  Efficiency full load heat input Net calorific value % 98 97 97 97 98 97 97 97
    Gross calorific value % 88 88 88 87 88 88 88 87
  Efficiency part load 30% Qa Net calorific value % 107 108 108 108 107 108 108 108
    Gross calorific value % 97 97 97 97 97 97 97 97
  Operation range Min °C 10 10 10 10 10 10 10 10
    Max °C 85 85 85 85 90 90 90 90
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
    Nom kW 15.0 20.0 24.0 28.0 15.0 20.0 24.0 28.0
    Continuous output QD (DIN 4708) Nom kW 15.0 20.0 24.0 28.0 15.0 20.0 24.0 28.0
  Water flow D value (EN625) Nom l/min 23.0 24.0 25.0 26.0 23.0 24.0 25.0 26.0
    Draw-off rate 10 min Max l/min 20.0 21.5 23.0 23.5 20.0 21.5 23.0 23.5
  Temperature Max °C 70 70 70 70 85 85 85 85
    Factory setting °C 58 58 58 58 58 58 58 58
  Efficiency NL characteristics (DIN4708)   2.1 2.1 2.1 2.2 2.1 2.1 2.1 2.2
  Operation range Min °C 10 10 10 10 10 10 10 10
    Max °C 70 70 70 70 85 85 85 85
  Hot water volume With reheating at draw-off rate 15 l/min l 370 500 600 900 370 500 600 900
    Without reheating at draw-off rate 15 l/min l 230 230 230 230 230 230 230 230
  Short term water quantity for QD l 200 215 230 235 200 215 230 235
Space heating General Prated kW 15 20 24 28 15 20 24 28
    P1 (Usefull heat output at 30% of rated heat output and low-temp regime) kW 4.8 6.5 7.8 9.1 4.8 6.5 7.8 9.1
    P4 (Useful heat output at rated heat output and high-temp regime) kW 14.6 19.5 23.4 27.2 14.6 19.5 23.4 27.2
    Ƞs (Seasonal space heating efficiency) % 91 92 92 92 91 92 92 92
    Ƞ1 (Useful efficiency at 30% of rated heat output and low-temp regime) % 96.7 97.2 97.2 97.2 96.7 97.1 97.1 97.2
    Ƞ4 (Useful efficiency at rated heat output and high-temp regime) % 87.4 87.7 88.0 88.0 87.3 87.7 87.9 87.9
    Seasonal space heating eff. class   A A A A A A A A
    Qhe Annual energy consumption (final energy) kWh 7,692 9,739 11,870 13,522 7,845 9,945 12,084 13,807
    Qhe Annual energy consumption (GCV) Gj 28 35 43 49 28 36 44 50
  Auxiliary electricity consumption elmax (at full load) kW 0.036 0.038 0.038 0.038 0.036 0.038 0.038 0.038
    elmin (at part load) kW 0.019 0.020 0.020 0.020 0.019 0.020 0.020 0.020
    Psb (Standby mode) kW 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003
  Other NOx emission mg/kWh 23 31 31 31 23 31 31 31
    Ƞson (seasonal space heating energy eff. in active mode) % 95 96 96 96 95 96 96 96
    Pstby (standby heat loss) kW 0.047 0.047 0.047 0.047 0.047 0.047 0.047 0.047
Heat losses Heat loss thermal downtime losses EN 15502-1           47 47 47 47
  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 Connection mm 100 100 100 100 100 100 100 100
  Concentric   Yes Yes Yes Yes Yes Yes Yes Yes
Flue gas Temperature Max °C 63 69 64 68 63 69 64 68
  Connection mm 60 60 60 60 60 60 60 60
  Length DN60/100 Max m 10 15 14 10 10 15 14 10
  Length DN80/125 Max m 7 11 14 15 7 11 14 15
  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
  Available overpressure Pa 170.0 200.0 185.0 200.0 170.0 200.0 185.0 200.0
  Condensate drain hose DN 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0
Mounting Floor Floor Floor Floor Floor Floor Floor Floor
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
      Minimum installation height mm 2,095.0 2,095.0 2,095.0 2,095.0 2,095.0 2,095.0 2,095.0 2,095.0
    Width mm 790 790 790 790 790 790 790 790
    Depth mm 790 790 790 790 790 790 790 790
  Packed unit Height mm 2,015 2,015 2,015 2,015 2,015 2,015 2,015 2,015
    Width mm 800 800 800 800 800 800 800 800
    Depth mm 900 900 900 900 900 900 900 900
Weight Unit Empty kg 104 104 106 106 104 104 106 106
    Full kg 581 581 583 583 581 581 583 583
  Packed unit Empty kg 115 115 117 117 115 115 117 117
Packing Material   Corrugated board, PE wrapping foil Corrugated board, PE wrapping foil Corrugated board, PE wrapping foil Corrugated board, PE wrapping foil Corrugated board, PE wrapping foil Corrugated board, PE wrapping foil Corrugated board, PE wrapping foil Corrugated board, PE wrapping foil
  Weight kg 11 11 11 11 11 11 11 11
Boiler Water volume l 0.5 0.5 0.8 0.8 0.5 0.5 0.8 0.8
Tank Energy efficiency class   B B B B B B B B
  Psbsol W/K         1.6 1.6 1.6 1.6
  Standing heat loss W 72 72 72 72 71 71 71 71
  Storage volume l 477 477 477 477 477 477 477 477
  Water volume l 477 477 477 477 500 500 500 500
  Material   Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen Polypropylen
  Maximum water temperature °C 85.0 85.0 85.0 85.0 85 85 85 85
  Insulation Material   HFC-free Polyurethane foam HFC-free Polyurethane foam HFC-free Polyurethane foam HFC-free Polyurethane foam Polyurethane foam Polyurethane foam Polyurethane foam Polyurethane foam
    Minimum thickness mm 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
    Heat loss kWh/24h 1.7 (1) 1.7 (1) 1.7 (1) 1.7 (1) 1.7 1.7 1.7 1.7
  Vbu (Solar, BUH) l 322 322 392 392 322 322 392 392
Heat exchanger Quantity   3 3 3 3 3 3 3 3
  Domestic hot water Quantity   1 1 1 1 1 1 1 1
    Tube material   Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404)
    Face area 5.300 5.300 5.300 5.300 5.000 5.000 5.000 5.000
    Internal coil volume l 25.8 25.8 25.8 25.8 24.5 24.5 24.5 24.5
    Operating pressure bar 6 6 6 6 6 6 6 6
    Average specifc thermal output W/K 2,580 2,580 2,580 2,580 2,581 2,581 2,581 2,581
  Charging Quantity   1 1 1 1 1 1 1 1
    Tube material   Stainless steel (DIN 1.4404) Stainless steel (DIN 1.4404) Stainless steel (DIN 1.4404) Stainless steel (DIN 1.4404) Stainless steel (DIN 1.4404) Stainless steel (DIN 1.4404) Stainless steel (DIN 1.4404) Stainless steel (DIN 1.4404)
    Face area 2 2 4 4 2 2 4 4
    Internal coil volume l 9 9 17 17 11 11 19 19
    Operating pressure bar 3 3 3 3 10 10 10 10
    Average specifc thermal output W/K 1,030 1,030 1,800 1,800 2 2 2 2
  Pressurised solar Quantity   1 1 1 1 1 1 1 1
    Tube material   Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404) Stainless steel (1.4404)
    Face area 1.70 1.70 1.70 1.70 1.70 1.70 1.70 1.70
    Internal coil volume l 10.20 10.20 10.20 10.20 9.30 9.30 9.30 9.30
    Operating pressure bar 6.00 6.00 6.00 6.00 10.00 10.00 10.00 10.00
    Average specifc thermal output W/K 840.00 840.00 840.00 840.00 840.00 840.00 840.00 840.00
3-way valve Type   Afriso USV Afriso USV Afriso USV Afriso USV Afriso USV Afriso USV Afriso USV Afriso USV
  Inlet inch DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection)
  Outlet Type inch DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection) DN 25 (plug connection)
  Transit time sec 75.0 75.0 75.0 75.0 75.0 75.0 75.0 75.0
Fan motor Type   ebmPapst NRG118/0800-3612-030203-V27.1 ebmPapst NRG118/0800-3612-030203-V27.1 ebmPapst NRG118/0800-3612-030203-V27.1 ebmPapst NRG118/0800-3612-030203-V27.1 ebmPapst NRG118/0800-3612-030203-V27.1 ebmPapst NRG118/0800-3612-030203-V27.1 ebmPapst NRG118/0800-3612-030203-V27.1 ebmPapst NRG118/0800-3612-030203-V27.1
Pump Type   Grundfos UPM3K 25-75 CHBL Grundfos UPM3K 25-75 CHBL Grundfos UPM3K 25-75 CHBL Grundfos UPM3K 25-75 CHBL Grundfos UPM3 25-75 CHBL Grundfos UPM3 25-75 CHBL RT Grundfos UPM3 25-75 CHBL RT Grundfos UPM3 25-75 CHBL RT
  Nr of speeds   Modulating Modulating Modulating Modulating Modulating Modulating Modulating Modulating
  Power input W 60 60 60 60 60 60 60 60
  Maximum pumping height m 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5
Gas valve Type   Elster CES 10 (Lambda Gx) Elster CES 10 (Lambda Gx) Elster CES 10 (Lambda Gx) Elster CES 10 (Lambda Gx) Elster CES 10 (Lambda Gx) Elster CES 10 (Lambda Gx) Elster CES 10 (Lambda Gx) Elster CES 10 (Lambda Gx)
Water circuit - Central heating Piping connections diameter inch G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (female) G 1" (female) G 1" (female) G 1" (female)
  Pressure Heating Max. bar 3 3 3 3 3 3 3 3
  Safety valve bar 3 3 3 3 1 1 1 1
  Air purge valve   Yes Yes Yes Yes Yes Yes Yes Yes
  Drain valve / fill valve   Yes Yes Yes Yes Yes Yes Yes Yes
  Manometer   Digital Digital Digital Digital Digital Digital Digital Digital
Water circuit - Domestic hot water side Piping connections Cold water in / Hot water out inch G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male)
Installation place Indoor Indoor Indoor Indoor Indoor Indoor Indoor Indoor
Piping connections Solar collector inlet inch G 1" (Female) G 1" (Female) G 1" (Female) G 1" (Female) G 1" (Female) G 1" (Female) G 1" (Female) G 1" (Female)
  Pressurised solar heat exchanger inch Yes Yes Yes Yes Yes Yes Yes Yes
  Cold water in Diameter inch G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male)
  Hot water out Diameter inch G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male) G 1" (male)
  Heating feed and return flow inch G1" (male) G1" (male) G1" (male) G1" (male) G1" (female) G1" (female) G1" (female) G1" (female)
Control systems Infrared remote control   Gateway Rocon G1 Gateway Rocon G1 Gateway Rocon G1 Gateway Rocon G1 Gateway Rocon G1 Gateway Rocon G1 Gateway Rocon G1 Gateway Rocon G1
  Wired remote control   room station Rocon U1 room station Rocon U1 room station Rocon U1 room station Rocon U1 room station Rocon U1 room station Rocon U1 room station Rocon U1 room station Rocon U1
  Class of temperature control   II II II II II II II II
  Contribution to seasonal space heating efficiency % 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
General Supplier/Manufacturer details Name and address   Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium Daikin Europe N.V. - Zandvoordestraat 300, 8400 Oostende, Belgium
    Name or trademark   Daikin Europe N.V. Daikin Europe N.V. Daikin Europe N.V. Daikin Europe N.V. Daikin Europe N.V. Daikin Europe N.V. Daikin Europe N.V. Daikin Europe N.V.
  Product description Model identifier   GCU compact 515 Biv GCU compact 520 Biv GCU compact 524 Biv GCU compact 528 Biv GCU compact 515 Biv GCU compact 520 Biv GCU compact 524 Biv GCU compact 528 Biv
    Condensing boiler   Yes Yes Yes Yes Yes Yes Yes Yes
    Low-temperature boiler   No No No No No No No No
    B1 boiler   No No No No No No No No
    Cogeneration space heater   No No No No No No No No
    Combination heater   Yes Yes Yes Yes Yes Yes Yes Yes
    Combination heater is able to work only during off-peak hours   Yes Yes Yes Yes Yes Yes Yes Yes
  LW(A) Sound power level (according to EN14825) Indoor dB(A) 53.0 58.0 61.0 64.0 53 55 56 56
  Supplementary heater Type of energy input   Gas Gas Gas Gas Gas Gas Gas Gas
Domestic hot water heating General Declared load profile   XL XL XL XL XL XL XL XL
    Ƞwh (water heating efficiency) % 84 82 84 84 89 82 82 82
    Qelec (Daily electricity consumption) kWh 0.466 0.510 0.460 0.463 0.250 0.260 0.340 0.290
    Qfuel (Daily fuel consumption) kWh 22.198 22.884 22.379 22.337 20.640 22.860 22.690 22.910
    Water heating energy efficiency class   A A A A A A A A
    AEC (Annual electricity consumption) kWh 39 35 34 36 27 27 45 33
    AFC (Annual fuel consumption) Gj 17 17 17 17 16 18 18 18
    Qref (reference energy of the declared load profile) kWh 19.070 19.070 19.070 19.070 19.070 19.070 19.070 19.070
    Energy required for the generation of Qref kWh         19.760 19.570 19.690 19.630
Power supply Name   V3 V3 V3 V3 V3 V3 V3 V3
  Phase   1~ 1~ 1~ 1~ 1~ 1~ 1~ 1~
  Frequency Hz 50 50 50 50 50 50 50 50
  Voltage V 230 230 230 230 230 230 230 230
  Voltage range Min. % 85 85 85 85 85 85 85 85
    Max. % 110 110 110 110 110 110 110 110
Class IP   IP X0B IP X0B IP X0B IP X0B IP X0B IP X0B IP X0B IP X0B
  3-way valve IP IP54 IP54 IP54 IP54        
Electrical power consumption Max. W 76 98 104 108 76 98 104 108
  Standby W 3 3 3 3 3 3 3 3
Current Fuse Size A 6 6 6 6        
    Phase 1~ 1~ 1~ 1~        
    Pole 1 1 1 1        
Sensor Storage tank sensor   NTC NTC NTC NTC NTC NTC NTC NTC
  Return temperature sensor   NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm)
  Feed temperature sensor   NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm)
  Flow sensor   Frequency Frequency Frequency Frequency NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm)
  Ambient temperature sensor   NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm) NTC (10k Ohm)
Pump Type UPM3(K)25-75 UPM3(K)25-75 UPM3(K)25-75 UPM3(K)25-75        
Notes_Description 1 1 1 1