3.4
Technical specifications
Technical specifications
Heat Input Range(Qn)
Nominal Heat Output Range (Pn) at 80-60°C
Nominal Heat Output Range (Pn) at 50-30°C
Efficiency (30% partial load at 30°C return temperature)
Central Heating Circuit
Operating Pressure (min./max.)
Heating Circuit Temperature Interval (min./max.)
Domestic Hot Water Circuit
Hot Water Amount DT: 30°C
Hot Water Amount DT: 35°C
Water Installation Pressure (min./max.)
Domestic Hot Water Temperature Interval (min./max.)
Domestic Hot Water Circuit Type
General
Expansion Vessel Initial Pressure
Expansion Vessel Capacity
Electrical Connection
Electrical Power Consumption (max.)
Standby Electrical Power Consumption
IP Rating
Boiler Weight
Boiler Dimensions (Height × Width × Depth)
Flue outlet diameter
Combustion specifications
Gas Category
Nominal Gas Inlet Pressure (G20/G25/G31)
G20 Gas Inlet Pressure (min./max.)
Natural Gas (G20) Consumption (min./max.)
Combustion products mass flow rate (min./max.) (G20)
Combustion products temperature (min./max.) (G20)
Maximum combustion products temp. at nominal heat input
CO
Emission at nominal and minimum heat input (G20)
2
NOx Class
Energy-related products (ErP) specifications
Model
Condensing boiler
Low-temperature
(b)
boiler
B1 boiler
Cogeneration space heater
Combination heater
Central heating efficiency class
Rated heat output
Useful heat output at rated heat output and high-temperature regime
Useful heat output at 30% of rated heat output and low-temperature regime
Seasonal space heating energy efficiency
Useful efficiency at rated heat output and high-temperature regime
Useful efficiency at 30% of rated heat output and low-temperature regime
Auxiliary electricity consumption
At full load
At part load
In standby mode
Other items
Standby heat loss
Ignition burner power consumption
Annual energy consumption
Sound power level, indoors (at maximum heat input)
Emissions of nitrogen oxides
Domestic hot water parameters
Declared load profile
D2CNL024A1AA
Wall-mounted condensing boiler
3P469346-12P – 2020.07
Unit
kW
kW
kW
%
bar
°C
l/min
l/min
MPa
°C
—
bar
l
V AC/Hz
W
W
—
kg
mm
mm
Unit
—
mbar
mbar
m³/h
g/s
°C
°C
%
—
Symbol
—
—
—
—
—
—
—
P
rated
(a)
P
4
(b)
P
1
η
s
(a)
η
4
(b)
η
1
el
max
el
min
P
SB
P
stby
P
ign
Q
HE
L
WA
NO
x
—
D2CNL024A1AA
4~23.5
3.8~22.8
4.4~24
109
0.6 / 3.0
30 / 80
12
10.3
0.05 / 1
35 / 60
instantaneous
1
7
230/50
100
2.5
IPX4D
27
590 × 400 × 256
60 / 100
D2CNL024A1AA
I
2H
20
17 / 25
0.4 / 2.5
1.88 / 10.4
56 / 77
90
8.7 / 9.3±0.2
6
Unit
D2CNL024A1AA
—
D2CNL024
—
YES
—
NO
—
NO
—
NO
—
YES
—
A
kW
23
kW
22.7
kW
7.7
%
93
%
87.9
%
98.2
kW
0.041
kW
0.016
kW
0.0025
kW
0.053
kW
—
kWh
11355
dB
51
mg/kWh
42
—
XL
3 About the unit
Installation Manual
7