D2CND024A4AA D2CND028A4AA D2CND035A4AA
Gas Supply pressure 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)
    Estonia   G20 (20 mbar) / G31 (37 mbar) G20 (20 mbar) / G31 (37 mbar) G20 (20 mbar) / G31 (37 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)
    Germany   G20 (20 mbar) / G25 (20 mbar) / G31 (30 mbar) / G31 (37 mbar) / G31 (50 mbar) G20 (20 mbar) / G25 (20 mbar) / G31 (30 mbar) / G31 (37 mbar) / G31 (50 mbar)
    Greece   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)
    Latvia   G20 (20 mbar) / G31 (37 mbar) G20 (20 mbar) / G31 (37 mbar) G20 (20 mbar) / G31 (37 mbar)
    Lithuania   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Poland   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Portugal   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Spain   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
    Turkey   G20 (20 mbar) / G31 (37 mbar) G20 (20 mbar) / G31 (37 mbar)
    United Kingdom   G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar) G20 (20 mbar), G31 (37 mbar)
  Category Belgium   II2E+3P II2E+3P II2E+3P
    Estonia   II2H3P II2H3P II2H3P
    France   II2E+3P II2E+3P II2E+3P
    Germany   II2ELL3P II2ELL3P
    Greece   II2H3P II2H3P II2H3P
    Italy   II2H3P II2H3P II2H3P
    Latvia   II2H3P II2H3P II2H3P
    Lithuania   II2H3P II2H3P II2H3P
    Poland   II2E3P II2E3P II2E3P
    Portugal   II2H3P II2H3P II2H3P
    Spain   II2H3P II2H3P II2H3P
    Turkey   II2H3P II2H3P
    United Kingdom   II2H3P II2H3P II2H3P
  Consumption (G20) Min m³/h 0.31 0.511 0.511
    Max m³/h 2.48 2.89 3.63
  Consumption (G25) Min m³/h 0.36 0.59 0.59
    Max m³/h 2.89 3.32 4.19
  Consumption (G31) Min m³/h 0.12 0.2 0.2
    Max m³/h 0.96 1.1 1.38
  NOx class   6 6 6
  NOx level (G20) mg/kWh 22 36.3 35.5
Central heating Heat input Qn (net calorific value) Nom Min kW 2.9 4.8 4.8
      Max kW 23.5 27 34
  Heat input Qn (gross calorific value) Nom Min kW 3.2 5.3 5.3
      Max kW 26.1 30 37.8
  Output Pn at 80/60°C Min kW 2.8 4.6 4.6
    Nom kW 22.8 26.3 33.2
  Output Pnc at 50/30°C Min kW 3.1 5.2 5.2
    Nom kW 24.0 28.2 35
  Output at 37/30°C Nom kW 7.6 8.8 11.1
  Factory setting Output Nom kW 24 28 35
  Water pressure (PMS) Max bar 3 3 3
  Water temperature Max °C 100 100 100
  Efficiency Net calorific value % 97.9    
    Gross calorific value % 87.3    
  Efficiency full load heat input Net calorific value % 96.9 97.5 97.6
    Gross calorific value % 87.3 87.8 87.8
  Efficiency part load 30% Qa Net calorific value % 108.7 108.9 108.7
    Gross calorific value % 97.9 98.1 97.9
  Operation range Min °C 30 30 30
    Max °C 80 80 80
Domestic hot water Heat input (net calorific value) Qnw Nom Min kW 2.9 4.8 4.8
      Max kW 23.5 29.5 34
  Heat input (gross calorific value) Qnw Nom Min kW 3.2 5.3 5.3
      Max kW 26.1 32.7 37.7
  Domestic hot water threshold l/min 2.0 2.5 2.5
  Water flow Flow rate D (EN13203) (40/10°C) Max l/min 11.3 14 16
  Temperature Max °C 60 60 60
    Factory setting °C 50 50 50
  Operation range Min °C 35 35 35
    Max °C 60 60 60
Heat losses Heat loss thermal downtime losses EN 15502-1   0.0650 0.0650
  Stand-by boiler Ps kW 0.057 0.0650 0.0650
Supply air Connection mm 100 100 100
  Concentric   Yes Yes Yes
Flue gas Temperature Max °C 90 76.4 81.7
  Connection mm 60 60 60
  Length 2x DN80 Max m 125 44 44
  Length DN60/100 Max m 11 7.5 7.5
  Length DN80/125 Max m 44 34 34
  Mass flow (G20) Max kg/h 38.7 44.5 55.7
  Mass flow (G25) Max kg/h   39.3 49.6
  Mass flow (G31) Max kg/h 36.0 43.3 54.7
  Condensate drain hose DN 20.0 20 20
  Condensate drain hose inch 0.79 0.79 0.79
Casing Colour   Titanium White (Ral9003) Titanium White (Ral9003) Titanium White (Ral9003)
  Material   Sheet metal Powder painted galvanised steel plate Powder painted galvanised steel plate
Dimensions Unit Height Casing mm 590 690 690
      Minimum installation height mm 970.0    
    Width mm 400 440 440
    Depth mm 256 295 295
  Packed unit Height mm 350 790 790
    Width mm 490 525 525
    Depth mm 680 385 385
Weight Unit Empty kg 27 37 37
    Full kg 27 39 39
  Boiler Empty kg 27.0    
  Packed unit Empty kg 32 41 41
Packing Material   Carton, EPS Carton Carton
  Weight kg 4.5 3 3
Boiler Water volume l   2 2
Heat exchanger Quantity   1 1 1
  Body material   Aluminium Aluminium Aluminium
  Domestic hot water Quantity   1 1 1
    Tube material   Stainless steel Stainless steel Stainless steel
    Face area   0.408 0.408
    Operating pressure bar   10 10
3-way valve Type   Stepper Motor Stepper Motor
Fan motor Type   AC Motor AC Motor
Pump Type   Grundfos UPM3 15-75 CHB Grundfos UPM3 15-75 CHB Grundfos UPM3 15-75 CHB
  Nr of speeds   PWM PWM PWM
  Power input W 60 60 60
  Maximum pumping height m 7.5 7.5 7.5
Gas valve Type   Electronic Electronic Electronic
Expansion vessel Volume l 8 10 10
  Max. water pressure bar 3 3 3
  Pre pressure bar 1 1 1
Water circuit - Central heating Piping connections diameter inch 3/4" (male) 3/4" (male) 3/4" (male)
  Piping connections diameter mm 19 18 18
  Piping material   Cu Cu
  Pressure Heating Max. bar 3 3 3
  Safety valve bar 3 3 3
  Air purge valve   Yes Yes Yes
  Drain valve / fill valve   Yes No No
  Shut off valve   Yes Yes Yes
Water circuit - Domestic hot water side Piping connections Cold water in / Hot water out inch 1/2" (male) 1/2" (male) 1/2" (male)
    Diameter mm 12.7 13 13
Sound power level Nom. dBA 49 49.61 52.83
Piping connections Water inlet heat exchanger diameter inch   G 3/4" (female) G 3/4" (female)
  Water inlet heat exchanger diameter mm   18 18
  Water outlet heat exchanger diameter mm   18 18
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
    Name or trademark   Daikin Europe N.V. Daikin Europe N.V. Daikin Europe N.V.
  Product description Model identifier   D2CND024    
    Condensing boiler   Yes Yes Yes
    Low-temperature boiler   No No No
    B1 boiler   No No No
    Cogeneration space heater   No No No
    Combination heater   No No No
    Combination heater is able to work only during off-peak hours   No No No
  LW(A) Sound power level (according to EN14825) Indoor dB(A) 49 49.61 52.83
  Supplementary heater Type of energy input   Gas Gas
Domestic hot water heating General Declared load profile   XL XL XL
    Ƞwh (water heating efficiency) % 85 85 83
    Qelec (Daily electricity consumption) kWh 0.166 0.153 0.204
    Qfuel (Daily fuel consumption) kWh 23.366 23.5 30.26
    Water heating energy efficiency class   A A A
    AEC (Annual electricity consumption) kWh 36 33 45
    AFC (Annual fuel consumption) Gj 17 17 23
    Qref (reference energy of the declared load profile) kWh 19.070 19.07 24.53
Space heating General Prated kW 23 26.3 33.2
    P1 (Usefull heat output at 30% of rated heat output and low-temp regime) kW 7.7 8.8 11.1
    P4 (Useful heat output at rated heat output and high-temp regime) kW 22.8 26.3 33.2
    Ƞs (Seasonal space heating efficiency) % 93 93 93
    Ƞ1 (Useful efficiency at 30% of rated heat output and low-temp regime) % 97.9 98.1 97.9
    Ƞ4 (Useful efficiency at rated heat output and high-temp regime) % 87.3 87.8 87.9
    Seasonal space heating eff. class   A A A
    Qhe Annual energy consumption (final energy) kWh 19,648 13,292 16,260
    Qhe Annual energy consumption (GCV) Gj 70.731 47.85 58.54
  Auxiliary electricity consumption elmax (at full load) kW 0.027 0.0360 0.0550
    elmin (at part load) kW 0.010 0.0100 0.0110
    Psb (Standby mode) kW 0.004 0.0030 0.0030
  Other NOx emission mg/kWh 22 35.5 36.3
    Ƞson (seasonal space heating energy eff. in active mode) % 93 93 93
    Pstby (standby heat loss) kW 0.057 0.0650 0.0650
Power supply Phase   1~ 1~ 1~
  Frequency Hz 50 50 50
  Voltage V 230 230 230
  Voltage range Min. % 10 10 10
    Max. % 10 10 10
Class IP   IPX5D IPX5D IPX5D
Electrical power consumption Max. W 86 92 112
  Standby W 3.5 2.7 2.7
Sensor Storage tank sensor   No No
Pump Type   Modulating Pump Modulating Pump