12
ENGLISH
Multigas table
DESCRIPTION
Methane gas
(G20)
Butane
(G30)
Propane
(G31)
Quadra II 24 C.A.I.
Lower Wobbe index (at 15°C-1013 mbar)
MJ/m
3
S
45,67
80,58
70,69
Net Calorific Value
MJ/m
3
S
34,02
116,09
88
Supply nominal pressure
mbar
(mm
H
2
O
)
20
(203,9)
28 - 30
(285,5 - 305,9)
37
(377,3)
Supply minimum pressure
mbar
(mm
H
2
O
)
13,5
(137,7)
-
-
Diaphragm (number of holes)
n°
12
12
12
Diaphragm (diameter of holes)
mm
1,3
0,77
0,77
Heating maximum gas capacity
Sm
3
/h
2,82
kg/h
2,10
2,07
DHW maximum gas capacity
Sm
3
/h
2,82
kg/h
2,10
2,07
Heating minimum gas capacity
Sm
3
/h
1,13
kg/h
0,84
0,83
DHW minimum gas capacity
Sm
3
/h
0,88
kg/h
0,65
0,64
Maximum pressure downstream CH valve
mbar
11,80
28,00
36,00
mm
W.C.
120,33
285,52
367,10
Maximum pressure downstream DHW valve
mbar
11,80
28,00
36,00
mm
W.C.
120,33
285,52
367,10
Minimum pressure downstream CH valve
mbar
2,10
5,00
6,70
mm
W.C.
21,41
50,99
68,32
Minimum pressure downstream DHW valve
mbar
1,30
3,10
4,00
mm
W.C.
13,26
31,61
40,79
PARAMETER
SYMBOL
QUADRA II 24 C.A.I.
UNIT
Seasonal space heating energy efficiency class
C
-
Water heating energy efficiency class
B
-
Rated heat output
Pnominal
24
kW
Seasonal space heating energy efficiency
ηs
77
%
Useful heat output
At rated heat output and high-temperature regime (*)
P4
24,0
kW
At 30% of rated heat output and low-temperature regime (**)
P1
7,1
kW
Useful efficiency
At rated heat output and high-temperature regime (*)
η4
80,9
%
At 30% of rated heat output and low-temperature regime (**)
η1
80,3
%
Auxiliary electricity consumption
At full load
elmax
16,0
W
At part load
elmin
6,4
W
In Stand-by mode
PSB
2,3
W
Other parameters
Stand-by heat loss
Pstby
135,0
W
Pilot flame energy consumption
Pign
-
W
Annual energy consumption
QHE
90
GJ
Sound power level, indoors
LWA
54
dB
Emissions of nitrogen oxides
NOx
143
mg/kWh
For combination heaters
Declared load profile
XL
Water heating energy efficiency
ηwh
78
%
Daily electricity consumption
Qelec
0,115
kWh
Daily fuel consumption
Qfuel
25,533
kWh
Annual electricity consumption
AEC
25
kWh
Annual fuel consumption
AFC
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).