13
Technical Features
ENGLISH
2.4.1 - DATA ACCORDING TO ErP DIRECTIVE
2.4 - OPERATING DATA
KON
m
R 18 / C 18 R 24 / C 24 R 28 / C 28 R 35 / C 35
Nominal heat input in CH / DHW mode
kW
18,0 / 23,4 23,4 / 23,4 28,0 / 28,0
33,0 / 33,0
Minimum heat input with Nat. Gas / Propane
kW
3,0 / 4,4
3,0 / 4,4
4,4 / 5,6
4,4 / 5,6
Nominal heat output
kW
17,4
22,6
27,2
32,0
Minimum heat output
kW
2,9
2,9
4,3
4,3
Nominal output in condensation 50/30 °C
kW
18,4
23,6
28,9
33,8
Minimum heat output in condensation 50/30 °C
kW
3,2
3,2
4,67
4,67
Combustion efficiency at full load
%
97,6
97,2
97,6
97,26
Combustion efficiency at part load
%
98,6
98,6
98,1
98,1
Heat losses through the casing (min.-max.)
%
2,0 - 0,67
2,0 - 0,6
1,47 - 0,43
1,47 - 0,2
(*) Net flue gas temperature tf-ta (max.)
°C
49,0
57,4
47,9
57,0
Flue gas mass flow rate (min.-max)
g/s
1,35 - 8,1
1,35 - 10,5 2 - 12,5
2 - 14,7
Air excess λ
%
24,3
24,3
23,0
23,0
CO
2
%
9,2 - 9,2
9,2 - 9,2
9,3 - 9,3
9,3 - 9,3
CO at 0% of O
2
(min. - max)
ppm
22 - 95
22 - 114
11 - 93
11 - 120
Maximum production of condensate
kg/h
2,9
3,8
4,5
5,3
NOx class
6
6
6
6
Chimney heat losses with burner ON (min. - max.)
%
1,4 - 2,4
1,4 - 2,9
1,9 - 2,4
1,9 - 2,8
Chimney heat losses with burner OFF
%
0,60
0,46
0,41
0,34
Prevalenza disponibile alla base del camino min. / max.
Pa
2 / 70
2 / 70
2 / 70
2 / 70
Notes: (*) Room Temperature = 20°C Data obtained with appliance operated with Nat Gas (G20)
Description
Symbol
Unit
KON
e
R18 C18
R24 C24
R28 C28
R35 C35
Nominal Heat Output
Pnominal
kW
17
23
27
32
Seasonal space heating energy
efficiency
ƞ
s
%
93
92
93
93
Seasonal efficiency class in
heating mode
A
A
A
A
For CH only and combination boilers: useful heat output
Useful Heat Output in high-tempera-
ture regime
(Tr 60 °C / Tm 80 °C)
P
4
kW
10,3
12,7
15,8
18,2
Useful efficiency at nom. heat output
in high-temperature regime
(Tr 60 °C / Tm 80 °C
ƞ
4
%
88,1
87,0
88,4
87,5
Useful heat output at 30% of nom.
heat output in low-temperature
regime (Tr 30 °C)
P
1
kW
3,4
4,2
5,3
6,1
Useful efficiency at 30% of nom. heat
output in low-temperature regime
(Tr 30 °C)
ƞ
1
%
97,8
96,7
97,5
97,5
Range-rated boiler: YES / NO
YES
YES
YES
YES
Auxiliary electricity consumption
At full load
elmax
kW
0,085
0,085
0,116
0,116
At part load
elmin
kW
0,012
0,012
0,012
0,012
In stand-by mode
P
SB
kW
0,003
0,003
0,003
0,003
Other items
Dispersione termica in stand-by
P
stb
kW
0,0824
0,0824
0,1136
0,1136
Emissions of nitrogen oxides ref. PCI (PCS)
NOx
Mg/kWh
37 (33)
50 (45)
55 (50)
43 (39)
Annual electricity consumption
Q
HE
GJ
32
40
49
56
For CH & DHw production boilers
Declared load profile
-
XL
-
XL
-
XL
-
XL
Energy efficiency in DHW production mode
ƞ
wh
%
-
86
-
86
-
85
-
85
Daily electricity consumption
Qelec
kWh
-
0,09
-
0,09
-
0,09
-
0,09
Daily fuel consumptionl
Qfuel
kWh
-
22,07
-
22,07
-
23,05
-
23,13
Inside sound power level
Lwa
dB (A)
-
50,7
-
51
-
55,2
-
55,2
Annual electricity consumption
AEC
kWh
400
400
402
402
Annual fuel consumption
AFC
GJ
17
17
17
18
Seasonal efficiency class
in DHw production mode
- A - A - A - A
For the adjustment data: NOZZLES - PRESSURES - DIAPHRAGMS - FLOW RATES - CONSUMPTIONS refer to the paragraph ADAPTATION TO OTHER TYPES OF GAS.
