2.4.1 - DATA ACCORDING TO ErP DIRECTIVE
Description Symbol Unit
KON 1 C24 KON 1 C28 KON 1 C35
Nominal Heat Output Pnominale kW 23 27 32
Seasonal space heating energy
eciency
ƞ
s % 92 93 93
Seasonal eciency class in
heating mode
A A A
For CH only and combination boilers: useful heat output
Useful Heat Output in high-
temperature regime
(Tr 60 °C / Tm 80 °C)
P
4 kW 12,7 15,8 18,2
Useful eciency at nom. heat output
in high-temperature regime
(Tr 60 °C / Tm 80 °C
ƞ
4 % 87,0 88,0 87,5
Useful heat output at 30% of nom.
heat output in low-temperature
regime (Tr 30 °C)
P
1 kW 4,2 5,3 6,1
Useful eciency at 30% of nom. heat
output in low-temperature regime
(Tr 30 °C)
ƞ
1 % 96,7 97,9 97,5
Range-rated boiler: YES / NO YES YES YES
Auxiliary electricity consumption
At full load elmax kW 0,085 0,116 0,116
At part load elmin kW 0,012 0,012 0,012
In stand-by mode P
SB kW 0,003 0,003 0,003
Other items
Stand-by heat loss P
stb kW 0,0824 0,1136 0,1136
Emissions of nitrogen oxides NOx Mg/kWh 50 55 43
For CH & DHW production boilers
Declared load prole XL XL XL
Energy eciency in DHW production
mode
ƞ
wh % 86 85 85
Daily electricity consumption Qelec kWh 0,09 0,09 0,09
Daily fuel consumptionl Qfuel kWh 22,07 23,05
23,13
Inside sound power level Lwa dB (A) 51 55,2 55,2
Seasonal eciency class
in DHW production mode
A A A
KON 1 C24 KON 1 C28 KON 1 C35
Nominal heat input in CH / DHW mode kW 23,4 / 23,4 28,0 / 28,0 33,0 / 33,0
Minimum heat input with Nat. Gas / Propane kW 3,0 / 4,4 4,4 / 5,6 4,4 / 5,6
Nominal heat output kW 22,6 27,2 32,0
Minimum heat output kW 2,9 4,3 4,3
Nominal output in condensation 50/30 °C kW 23,6 28,9 33,8
Minimum heat output in condensation 50/30 °C kW 3,2 4,7 4,7
Combustion eciency at full load % 97,2 97,6 97,2
Combustion eciency at part load % 98,6 98,1 98,1
Heat losses through the casing (min.-max.) % 2,0 - 0,7 1,47 - 0,43 1,47 - 0,2
(*) Net ue gas temperature tf-ta (max.) °C 57,6 48 57
Flue gas mass ow rate (min.-max) g/s 1,34 - 10,3 2,0 - 12,5 2,0 - 14,7
Air excess λ % 20,6 23,0 23,0
CO
2
% 9,5 - 9,5 9,3 - 9,3 9,3 - 9,3
CO at 0% of O
2
(min. - max) ppm 20 - 121 19 - 100 19 - 120
Maximum production of condensate kg/h 3,7 4,5 5,3
NOx class 5 5 5
Chimney heat losses with burner ON (min. - max.) % 1,4 - 2,6 1,9 - 2,4 1,9 - 2,8
Chimney heat losses with burner OFF % 0,46 0,41 0,34
Max. available pressure at the chimney base min. / max.
Pa 2 / 70 2 / 70 2 / 70
Notes: (*) Room Temperature = 20°C Data obtained with appliance operated with Nat Gas (G20)
2.4 - OPERATING DATA ACCORDING TO UNI 10348
Fortheadjustmentdata:NOZZLES-PRESSURES-DIAPHRAGMS-FLOWRATES-CONSUMPTIONSrefertotheparagraphADAPTATIONTOOTHERTYPESOFGAS.