15
Tec
hnical Features
ENGLISH
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
efficiency
ƞ
s
%
92
93
93
Seasonal efficiency 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 efficiency 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 efficiency 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 profile
XL
XL
XL
Energy efficiency 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 efficiency 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 efficiency at full load
%
97,2
97,6
97,2
Combustion efficiency 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 flue gas temperature tf-ta (max.)
°C
57,6
48
57
Flue gas mass flow 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
For the adjustment data: NOZZLES - PRESSURES - DIAPHRAGMS - FLOW RATES - CONSUMPTIONS refer to the paragraph ADAPTATION TO OTHER TYPES OF GAS.