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39
C607215 - GB
INSTRUCTIONS FOR FITTERS
32. TECHNICAL DATA
MODEL NUVOLA 3 COMFORT
240 i
280 i
140Fi
240 Fi
280 Fi
320 Fi
Category
II
2H3+
II
2H3+
II
2H3P
II
2H3+
II
2H3+
II
2H3P
Rated heat input
kW
27,1
31,1
15,3
26,3
30,1
34,5
Reduced heat input
kW
11,9
11,9
6,9
11,9
11,9
11,9
Rated heat output
kW
24,4
28
14
24,4
28
32
kcal/h
21.000
24.080
12.100
21.000
24.080
27.520
Reduced heat output
kW
10,4
10,4
6
10,4
10,4
10,4
kcal/h
8.900
8.900
5.160
8.900
8.900
8.900
Efficiency according to Directive 92/42/EEC
–
HH
HH
HH
HHH
HHH
HHH
Max. pressure in central heating system
bar
3
3
3
3
3
3
Capacity of storage boiler
l
60
60
60
60
60
60
Capacity of expansion vessel
l
7,5
7,5
7,5
7,5
7,5
7,5
Pressure of expansion vessel
bar
0,5
0,5
0,5
0,5
0,5
0,5
Production of DHW at discharge ∆T=30°C
l/30min
390
450
—
390
450
490
Boiler reset time
min
6
4
—
6
4
4
Max. pressure in DHW system
bar
8
8
8
8
8
8
DHW output at ∆T=25 °C
l/min
14
16,1
8,1
14
16,1
18,3
DHW output at ∆T=35 °C
l/min
10
11,5
5,8
10
11,5
13,1
Specific output (*)
l/min
18,2
19
14,1
18,2
19
21,5
Type
—
B
11BS
B
11BS
C12 - C32 - C42 - C52 - C82 - B22
Diameter of concentric flue duct
mm
—
—
60
60
60
60
Diameter of concentric air duct
mm
—
—
100
100
100
100
Diameter of 2-pipe flue duct
mm
—
—
80
80
80
80
Diameter of 2-pipe air duct
mm
—
—
80
80
80
80
Diameter of flue duct
mm
140
140
—
—
—
—
Max. mass flow of fumes
kg/s
0,022
0,024
0,015
0,018
0,018
0,022
Min. mass flow of fumes
kg/s
0,021
0,021
0,015
0,017
0,018
0,021
Max. temperature of fumes
°C
110
115
120
134
142
142
Min. temperature of fumes
°C
82
82
77
108
108
108
NOx class
—
3
3
3
3
3
3
Type of gas
—
G20
G20
G20
G20
G20
G20
—
G30-G31
G30-G31
G31
G30-G31
G30-G31
G31
Natural gas supply pressure
mbar
20
20
20
20
20
20
Butane gas supply pressure
mbar
28-30
28-30
—
28-30
28-30
—
Propane gas supply pressure
mbar
37
37
37
37
37
37
Power supply voltage
V
230
230
230
230
230
230
Input frequency
Hz
50
50
50
50
50
50
Rated electrical input
W
110
110
190
190
190
190
Net weight
kg
60
60
70
70
70
70
Dimensions
height
mm
950
950
950
950
950
950
width
mm
600
600
600
600
600
600
depth
mm
466
466
466
466
466
466
Protection against humidity and water penetration
(**)
—
IP X5D
IP X5D
IP X5D
IP X5D
IP X5D
IP X5D
(*) according to EN 625
(**) according to EN 60529