10 About the Boiler
The following table lists the product information requirements (EU regulation No 811/2013 and No 813/2013)
Specifications
Unit
NCB500-1.5S/37K
NCB500-2S/41K
Condensing boiler
YES
YES
Low-temperature (**) boiler
NO
NO
B1 boiler
NO
NO
Cogeneration space heater
NO
NO
Combination heater
YES
YES
Rated heat output
P
rated
kW
26
26
Seasonal space heating energy efficiency
η
s
%
93
93
Useful heat output
At rated heat output and
high-temperature regime (*)
P
4
kW
26.1
26.1
At 30 % of rated heat output and
low-temperature regime (**)
P
1
kW
8.5
8.5
Useful efficiency
At rated heat output and
high-temperature regime (*)
η
4
%
88.4
88.4
At 30 % of rated heat output and
low-temperature regime (**)
η
1
%
97.6
97.6
Auxiliary electricity consumption
At full load
elmax
kW
0.034
0.034
At part load
elmin
kW
0.016
0.016
In standby mode
P
SB
kW
0.003
0.003
Other items
Standby heat loss
P
stby
kW
0.078
0.078
Ignition burner power consumption
P
ign
kW
0
0
Annual energy consumption
Q
HE
GJ
Sound power level, indoors
L
WA
dB
Emissions of nitrogen oxides
NO
x
mg/kWh
For combination heaters
Declared load profile
Daily electricity consumption
Q
elec
kWh
Annual electricity consumption
AEC
kWh
Water heating energy efficiency
η
wh
%
Daily fuel consumption
Q
fuel
kWh
Annual fuel consumption
AFC
GJ
Contact details
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) 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).
Specific precautions
Read the user’s information and installation manual before the application is assembled, installed or maintained.
