DeDietrich MODULENS O AFC 18, Installation And Service Manual, Page: 178 / 180

1 Specific information
1.1 Recommendations
Note
Only qualified persons are authorised to assemble, install and
maintain the installation.
1.2 Ecodesign Directive
This product conforms to the requirements of European Directive
2009/125/EC on the ecodesign of energy-related products.
1.3 Technical data - Boiler space heaters
Tab.1 Technical parameters for boiler space heaters
Product name AFC 18 AFC 24 AFC 30
Condensing boiler Yes Yes Yes
Low-temperature boiler
(1)
No No No
B1 boiler No No No
Cogeneration space heater No No No
Combination heater No No No
Rated heat output
Prated
kW 17 23 29
Useful heat output at rated heat output and
high temperature regime
(2)
P
4
kW 17.1 22.8 28.6
Useful heat output at 30% of rated heat output
and low temperature regime
(1)
P
1
kW 5.4 7.2 8.9
Seasonal space heating energy efficiency
ƞ
s
% 90 90 90
Useful efficiency at rated heat output and high
temperature regime
(2)
ƞ
4
% 92.0 91.6 91.9
Useful efficiency at 30% of rated heat output
and low temperature regime
(1)
ƞ
1
% 96.9 96.1 95.7
Auxiliary electricity consumption
Full load elmax kW 0.162 0.167 0.189
Part load
elmin
kW 0.072 0.082 0.086
Stand-by
P
SB
kW 0.006 0.006 0.006
Other characteristics
Standby heat loss P
stby
kW 0.109 0.109 0.128
Ignition burner power consumption P
ign
kW - - -
Annual energy consumption
Q
HE
GJ 54 74 93
Sound power level, indoors - for a type B air/
flue gas connection
L
WA
dB 60 65 63
Sound power level, indoors - for a type C air/
flue gas connection
L
WA
dB 58 63 59
Emissions of nitrogen oxides NO
X
mg/kWh 53 46 62
(1) 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).
(2) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.
See
The back cover for contact details.
1 Specific information
300026439 - ErP01 - 20072015 3