Daikin D2CNL-A1A - Technical Specifications

3 About the unit
Installation Manual
7
D2CNL024A1AA
Wall-mounted condensing boiler
3P469346-12R – 2021.09
3.4 Technical specifications
Technical specifications Unit D2CNL024A1AA
Heat Input Range(Qn) kW 4~23.5
Nominal Heat Output Range (Pn) at 80-60°C kW 3.8~22.8
Nominal Heat Output Range (Pn) at 50-30°C kW 4.4~24
Efficiency (30% partial load at 30°C return temperature) % 109
Central Heating Circuit
Operating Pressure (min./max.) bar 0.6 / 3.0
Heating Circuit Temperature Interval (min./max.) °C 30 / 80
Domestic Hot Water Circuit
Hot Water Amount DT: 30°C l/min 12
Hot Water Amount DT: 35°C l/min 10.3
Water Installation Pressure (min./max.) MPa 0.05 / 1
Domestic Hot Water Temperature Interval (min./max.) °C 35 / 60
Domestic Hot Water Circuit Type — instantaneous
General
Expansion Vessel Initial Pressure bar 1
Expansion Vessel Capacity l 7
Electrical Connection VAC/Hz 230/50
Electrical Power Consumption (max.) W 100
Standby Electrical Power Consumption W 2.5
IP Rating — IPX4D
Boiler Weight kg 27
Boiler Dimensions (Height × Width × Depth) mm 590 × 400 × 256
Flue outlet diameter mm 60 / 100
Combustion specifications Unit D2CNL024A1AA
Gas Category — I
2H
Nominal Gas Inlet Pressure (G20/G25/G31) mbar 20
G20 Gas Inlet Pressure (min./max.) mbar 17 / 25
Natural Gas (G20) Consumption (min./max.) m³/h 0.4 / 2.5
Combustion products mass flow rate (min./max.) (G20) g/s 1.88 / 10.4
Combustion products temperature (min./max.) (G20) °C 56 / 77
Maximum combustion products temp. at nominal heat input °C 90
CO
2
Emission at nominal and minimum heat input (G20) % 8.7 / 9.3±0.2
NOx Class — 6
Energy-related products (ErP) specifications Symbol Unit D2CNL024A1AA
Model — — D2CNL024
Condensing boiler — — YES
Low-temperature
(b)
boiler — — NO
B1 boiler — — NO
Cogeneration space heater — — NO
Combination heater — — YES
Central heating efficiency class — — A
Rated heat output P
rated
kW 23
Useful heat output at rated heat output and high-temperature regime
(a)
P
4
kW 22.7
Useful heat output at 30% of rated heat output and low-temperature regime
(b)
P
1
kW 7.7
Seasonal space heating energy efficiency η
s
% 93
Useful efficiency at rated heat output and high-temperature regime
(a)
η
4
% 87.9
Useful efficiency at 30% of rated heat output and low-temperature regime
(b)
η
1
% 98.2
Auxiliary electricity consumption
At full load el
max
kW 0.041
At part load el
min
kW 0.016
In standby mode P
SB
kW 0.0025
Other items
Standby heat loss P
stby
kW 0.053
Ignition burner power consumption P
ign
kW —
Annual energy consumption Q
HE
kWh 11355
Sound power level, indoors (at maximum heat input) L
WA
dB 51
Emissions of nitrogen oxides NO
x
mg/kWh 42
Domestic hot water parameters
Declared load profile — — XL
Energy-related products (ErP) specifications Symbol Unit D2CNL024A1AA
Daily electricity consumption Q
elec
kWh 0.18
Annually electricity consumption AEC kWh 40
Water heating energy efficiency ŋ
wh
% 87
Water heating energy efficiency class — — A
Daily fuel consumption Q
fuel
kWh 22.08
Annual fuel consumption AFC GJ 17
(a) High-temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.