Technical Specifications - Baxi Nuvola 3 BS 40 Series Operating And Installation Instructions

Boiler model NUVOLA 3 BS 40
Category
Rated heat input
Reduced heat input
Rated heat output
Reduced heat output
Useful efficiency according to directive 92/42/CEE
Max. water pressure in CH system
Storage boiler capacity
Expansion vessel capacity
Expansion vessel pressure
DHW production at outlet ΔT=30°C
DHW max. water pressure
DHW production at ΔT=25 °C
DHW production at ΔT=35 °C
Specific output (*)
Type
Coaxial flue duct diameter
Coaxial air duct diameter
2-pipe flue duct diameter
2-pipe air duct diameter
Flue duct diameter
Max. flue mass flow rate
Min. flue mass flow rate
Max. flue temperature
Min. exhaust temperature
NOx Class
Gas used
Natural gas feeding pressure G20
Butane supply pressure G30
Propane gas feeding pressure G31
Power supply voltage
Power supply frequency
Rated power supply
Net weight
Dimensions
Protection against humidity and water penetration (**)
(*) according to EN 625
(**) according to EN 60529
INSTRUCTIONS FOR FITTERS
37. TECHNICAL DATA
240 i
II
kW 27,1
kW 11,9
kW 24,4
kcal/h 21.000
kW 10,4
kcal/h 8.900
–
bar
l 42
l 7,5
bar 0,5
l/30min 380
bar
l/min 14
l/min 10
l/min 16
— B
11BS
mm —
mm —
mm —
mm —
mm 140
kg/s 0,022
kg/s 0,021
°C 110
°C 82
—
— G20
— G30-G31
mbar 20
mbar 28-30
mbar 37
V 230
Hz 50
W 140
kg 53
height mm 950
width mm 600
depth mm 466
IP X5D
—
63
280 i 140 Fi
II II
2H3+ 2H3+ 2H3P
31,1 15,3
11,9 6,9
28 14
24.080 12.100
10,4 6
8.900 5.160
3 3 3
42 42
7,5 7,5
0,5 0,5
440 240
8 8 8
16,1 8,1
11,5 5,8
17,5 11,4
B C12 - C32 - C42 - C52 - C82 - B22
11BS
— 60
— 100
— 80
— 80
140 —
0,024 0,015
0,021 0,015
115 120
82 77
3 3 3
G20 G20
G30-G31 G31
20 20
28-30 —
37 37
230 230
50 50
165 190
53 63
950 950
600 600
466 466
IP X5D IP X5D
240 Fi 280 Fi
II II
2H3+ 2H3+
26,3 30,1
11,9 11,9
24,4 28
21.000 24.080
10,4 10,4
8.900 8.900
3 3
42 42
7,5 7,5
0,5 0,5
380 440
8 8
14 16,1
10 11,5
16 17,5
60 60
100 100
80 80
80 80
— —
0,017 0,018
0,018 0,018
134 142
108 108
3 3
G20 G20
G30-G31 G30-G31
20 20
28-30 28-30
37 37
230 230
50 50
190 215
63 63
950 950
600 600
466 466
IP X5D IP X5D
7113868.01 - en