3 About the unit
Installation manual
7
D2CND024A1/4AA + D2TND012~024A4AA
Wall-mounted condensing boiler
3P469346-3E – 2017.07
3.4
Technical specifications
Technical specifications
Unit
D2TND012A4AA
D2TND018A4AA
D2TND024A4AA
D2CND024A*AA
Heat Input Range(Qn)
kW
2.9~11.2
2.9~17.0
2.9~23.5
2.9~23.5
Nominal Heat Output Range (Pn) at 80-60°C
kW
2.8~10.9
2.8~16.6
2.8~22.8
2.8~22.8
Nominal Heat Output Range (Pn) at 50-30°C
kW
3.1~12.0
3.1~18.0
3.1~24.0
3.1~24.0
Efficiency (30% partial load at 30°C return temperature)
%
109.5
109.1
108.7
108.7
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.)
bar
—
0.5 / 10.0
Domestic Hot Water Temperature Interval (min./max.)
°C
35 / 60
Domestic Hot Water Circuit Type
—
storage tank
instantaneous
General
Expansion Vessel Initial Pressure
bar
1
Expansion Vessel Capacity
l
8
Electrical Connection
V AC/Hz
230/50
Electrical Power Consumption (max.)
W
86
Standby Electrical Power Consumption
W
3.5
Electrical Protection Class
—
IPX5D
Boiler Weight
kg
26.5
26.5
27
27
Boiler Dimensions (Height x Width x Depth)
mm
590 x 400 x 256
Flue outlet diameter
mm
60 / 100
Combustion specifications
Unit
D2TND012A4AA
D2TND018A4AA
D2TND024A4AA
D2CND024A*AA
Gas Category
—
II
2N3P
Nominal Gas Inlet Pressure (G20/G25/G31)
mbar
20 / 25 / 37
G20 Gas Inlet Pressure (min./max.)
mbar
17 / 30
(a)
G25 Gas Inlet Pressure (min./max.)
mbar
20 / 30
G31 Gas Inlet Pressure (min./max.)
mbar
25 / 45
Natural Gas (G20) Consumption (min./max.)
m³/h
0.31 / 1.18
0.31 / 1.80
0.31 / 2.48
0.31 / 2.48
Natural Gas (G25) Consumption (min./max.)
m³/h
0.36 / 1.38
0.36 / 2.09
0.36 / 2.89
0.36 / 2.89
LPG (G31) Consumption (min./max.)
m³/h
0.12 / 0.46
0.12 / 0.69
0.12 / 0.96
0.12 / 0.96
Combustion products mass flow rate (min./max.) (G20)
g/s
1.32 / 5.12
1.32 / 7.78
1.32 / 10.75
1.32 / 10.75
Combustion products mass flow rate (min./max.) (G31)
g/s
1.23 / 4.77
1.23 / 7.23
1.23 / 10.00
1.23 / 10.00
Combustion products temperature (min./max.) (G20)
°C
56 / 60
56 / 68
56 / 77
56 / 77
Combustion products temperature (min./max.) (G31)
°C
56 / 60
56 / 68
55 / 76
55 / 76
Maximum combustion products temp. at nominal heat input
°C
80
82
90
90
CO
2
Emission at nominal and minimum heat input (G20)
%
9.0±0.8
CO
2
Emission at nominal and minimum heat input (G31)
%
11.3±1.0
NOx Class
—
6
(a)
20 / 30 for Hungary
Energy-related products (ErP) specifications
Symbol
Unit
D2TND012A4AA
D2TND018A4AA
D2TND024A4AA
D2CND024A*AA
Model
—
—
D2TND012
D2TND018
D2TND024
D2CND024
Condensing boiler
—
—
YES
YES
YES
YES
Low-temperature
(b)
boiler
—
—
NO
NO
NO
NO
B1 boiler
—
—
NO
NO
NO
NO
Cogeneration space heater
—
—
NO
NO
NO
NO
Combination heater
—
—
NO
NO
NO
YES
Central heating efficiency class
—
—
****/A
Rated heat output
P
rated
kW
11
16
23
23
Useful heat output at rated heat output and high-temperature regime
(a)
P
4
kW
10.8
16.4
22.8
22.8
Useful heat output at 30% of rated heat output and low-temperature regime
(b)
P
1
kW
3.9
5.6
7.7
7.7
Seasonal space heating energy efficiency
η
s
%
93
93
93
93
Useful efficiency at rated heat output and high-temperature regime
(a)
η
4
%
87.8
87.4
87.3
87.3
Useful efficiency at 30% of rated heat output and low-temperature regime
(b)
η
1
%
98.6
98.2
97.9
97.9
Auxiliary electricity consumption
At full load
el
max
kW
0.013
0.020
0.027
0.027
At part load
el
min
kW
0.009
0.009
0.010
0.010
In standby mode
P
SB
kW
0.004
0.004
0.004
0.004
Other items
Standby heat loss
P
stby
kW
0.057
0.057
0.057
0.057
Ignition burner power consumption
P
ign
kW
—
—
—
—
Annual energy consumption
Q
HE
kWh
9281
13790
19648
19648
Sound power level, indoors (at maximum heat input)
L
WA
dB
42
46
49
49
Emissions of nitrogen oxides
NO
x
mg/kWh
10
18
22
22
Domestic hot water parameters
Declared load profile
—
—
—
—
—
XL
Содержание D2TND012A4AA
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