D2CND0 D2CND0 D2CND0
D2CND0 D2TND0 D2TND035A4AA
Wall-mounted condensing boiler
ESIE17 - 09 / 2017.11
Servicing manual
7
2.4 Techical Specification
2 Appliance information
Technical specifications
Unit
D2CND028A*AA
D2CND035A*AA
D2TND028A4AA
D2TND035A4AA
Heat Input Range(Qn)
kW
4.8~27.0
4.8~34.0
4.8~27.0
4.8~34.0
Nominal Heat Output Range (Pn) at 80-60°C
kW
4.6~26.3
4.6~33.2
4.6~26.3
4.6~33.2
Nominal Heat Output Range (Pn) at 50-30°C
kW
5.2~28.2
5.2~35.0
5.2~28.2
5.2~35.0
Efficiency (30% partial load at 30°C return temperature)
%
108.9
108.7
108.9
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
14
16
-
Hot Water Amount DT: 35°C
l/min
12
14
-
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
-
instantaneous
storage tank
General
Expansion Vessel Initial Pressure
bar
1
Expansion Vessel Capacity
l
10
Electrical Connection
V ACHz
230 / 50
Electrical Power Consumption (max.)
W
92
112
92
112
Standby Electrical Power Consumption
W
2.7
Electrical Protection Class
-
IPX5D
Boiler Weight
kg
37
35.5
Boiler Dimensions (Height x Width x Depth)
mm
695 x 440 x 295
Flue outlet diameter
mm
60 / 100
Combustion specifications
Unit
D2CND028A*AA
D2CND035A*AA
D2TND028A4AA
D2TND035A4AA
Gas Category
-
II2N3P
Nominal Gas Inlet Pressure (G20/G25/G31)
mbar
20 / 37
G20 Gas Inlet Pressure (min./max.)
mbar
17 / 25
G25 Gas Inlet Pressure (min./max.)
mbar
20 / 31
G31 Gas Inlet Pressure (min./max.)
mbar
25 / 45
Natural Gas (G20) Consumption (min./max.)
m3/h
0.51 / 2.89
0.51 / 3.63
0.51 / 2.89
0.51 / 3.63
Natural Gas (G25) Consumption (min./max.)
m3/h
0.59 / 3.32
0.59 / 4.19
0.59 / 3.32
0.59 / 4.19
LPG (G31) Consumption (min./max.)
m3/h
0.2 / 1.09
0.2 / 1.38
0.2 / 1.09
0.2 / 1.38
Combustion products mass flow rate (min./max.) (G20)
g/s
2.2 / 12.35
2.2 / 15.47
2.2 / 12.35
2.2 / 15.47
Combustion products mass flow rate (min./max.) (G31)
g/s
2.2 / 12.02
2.2 / 15.22
2.2 / 12.02
2.2 / 15.22
Combustion products temperature (min./max.) (G20)
°C
57.5 / 76.4
57.5 / 81.7
57.5 / 76.4
57.5 / 81.7
Combustion products temperature (min./max.) (G31)
°C
57.5 / 74.5
57.2 / 80.2
57.5 / 74.5
57.2 / 80.2
CO
2
Emission at nominal and minimum heat input (G20)
%
8.8±0.8
CO
2
Emission at nominal and minimum heat input (G31)
%
11.3 / 10.2±1.0
NOx Class
-
6
Energy-related products (ErP) specifications
Symbol
Unit
D2CND028A*AA
D2CND035A*AA
D2TND028A4AA
D2TND035A4AA
Model
-
-
D2CND028
D2CND035
D2TND028
D2TND035
Condesing 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
-
-
YES
YES
YES
YES
Central heating efficiency class
-
-
**** / A
Rated heat output
Prated
kW
26
33
26
33
Useful heat output at rated heat output and
high-temperature regime
(a)
P4
kW
26.3
33.2
26.3
33.2
Useful heat output at 30% of rated heat output and
low-temperature regime
(b)
P1
kW
8.8
11.1
8.8
11.1
Seasonal space heating energy efficiency
ηs
%
93
Useful efficiency at rated heat output and
high-temperature regime
(a)
η4
%
87.8
87.9
87.8
87.9
Useful efficiency at 30% of rated heat output and
low-temperature regime
(b)
η1
%
98.1
97.9
98.1
97.9
Auxiliary electricity consumption
At full load
elmax
kW
0.0356
0.0547
0.0356
0.0547
At part load
elmin
kW
0.0098
0.0111
0.0098
0.0111
In standby mode
PSB
kW
0.0026
Other items
Standby heat loss
Pstyby
kW
0.0651
Ignition burner power consumption
Pign
kW
-
Annual energy consumption
PHE
GJ
48
58
48
58
Sound power level, indoors (at maximum heat
input)
LWA
dB
49
52
49
52
Emissions of nitrogen oxides
NOX
mg/KWh
36
35
36
35
Domestic hot water parameters
Declared load profile
-
-
XL
-
Energy-related products (ErP) specifications
Symbol
Unit
D2CND028A*AA
D2CND035A*AA
D2TND028A4AA
D2TND035A4AA
Daily electricity consumption
Qelec
kWh
0.153
0.204
-
Annually electricity consumption
AEC
kWh
33
44
-
Water heating energy efficiency
ηwh
%
84
83
-
Water heating energy efficiency class
-
-
A
-
Daily fuel consumption
Qfuel
kWh
23.25
30.26
-
Annual fuel consumption
AFC
GJ
18
23
-
(a) 20 / 30 for Hungary
a High-temperature regime means 60°C return temperature at heater inlet and 80°C flow temperature at heater outlet.
b Low temperature means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return temperature (at heater inlet).
Summary of Contents for D2CND028A1AA
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