9
Exclusive C.A.I.
Parameter
Symbol
24 C.A.I.
28 C.A.I.
Unit
Seasonal space heating energy efficiency class
-
C
C
-
Water heating energy efficiency class
-
B
B
-
Rated heat output
Pnominal
24
29
kW
Seasonal space heating energy efficiency
η
s
77
77
%
Useful heat output
At rated heat output and high-temperature regime (*)
P4
24,0
28,7
kW
At 30% of rated heat output and low-temperature
regime (**)
P1
7,1
8,5
kW
Useful efficiency
At rated heat output and high-temperature regime (*)
η
4
80,9
81,0
%
At 30% of rated heat output and low-temperature
regime (**)
η
1
80,3
80,3
%
Auxiliary electricity consumption
At full load
elmax
17,0
14,0
W
At part load
elmin
7,2
6,3
W
In Stand-by mode
PSB
3,0
3,0
W
Other parameters
Stand-by heat loss
Pstby
135,0
141,0
W
Pilot flame energy consumption
Pign
-
-
W
Annual energy consumption
QHE
90
107
GJ
Sound power level, indoors
LWA
54
53
dB
Emissions of nitrogen oxides
NOx
143
143
mg/kWh
For combination heaters
Declared load profile
XL
XL
Water heating energy efficiency
η
wh
78
78
%
Daily electricity consumption
Qelec
0,124
0,125
kWh
Daily fuel consumption
Qfuel
25,526
25,647
kWh
Annual electricity consumption
AEC
27
27
kWh
Annual fuel consumption
AFC
19
19
GJ
(*) 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).
28 C.A.I.
Main burner (14 nozzles)
Ø mm
1,3
0,78
0,78
CH maximum gas capacity
Sm
3
/h
3,37
-
-
kg/h
-
2,51
2,48
DHW maximum gas capacity
Sm
3
/h
3,37
-
-
kg/h
-
2,51
2,48
CH minimum gas capacity
Sm
3
/h
1,48
-
-
kg/h
-
1,10
1,09
DHW minimum gas capacity
Sm
3
/h
0,92
-
-
kg/h
-
0,69
0,68
Maximum pressure downstream CH valve
mbar
12,70
27,00
35,20
mm H
2
O
129,50
275,32
358,94
Maximum pressure downstream DHW valve*
mbar
12,70
27,00
35,20
mm H
2
O
129,50
275,32
358,94
Minimum pressure downstream CH valve
mbar
2,60
5,50
7,10
mm H
2
O
26,51
56,08
72,40
Minimum pressure downstream DHW valve*
mbar
1,00
2,30
2,90
mm H
2
O
10,20
23,45
29,57
