1.3
TECHNICAL FEATURES
Models
Heat output
Nominal
Reduced
Heat input
Nominal
Reduced
Thermal yield 100% useful
Thermal yield useful at 30% of load
Termal efficiency (CEE 92/42 directive)
Losses after shutdown to 50°C (EN 483)
Supply voltage
Adsorbed power consumption
Electrical protection grade
C.H. setting range
Water content boiler
Maximum water head
Maximum temperature
Capacity of the heating expansion vessel
Pressure of the heating expansion vessel
D.H.W. setting range
D.H.W. flow rate (EN 625)
Continuous D.H.W. flow rate ∆t 30°C
D.H.W pressure
Tank capacity
Recovery time from 25°C to 55°C
D.H.W. expansion vessel
Smokes temperature min/max
Smokes flow min/max
CE certification
Category
Type of appliance
NOx emission class
Weight when empty
Main burner nozzle
Quantity nozzles
Nozzle diameter G20
Nozzle diameter G30/G31
Gas consumption *
Natural gas (G20)
LPG (G30/G31)
Burner gas pressure min/max
Natural gas (G20)
Butane (G30)
Propane (G31)
Gas supply pressure
Natural gas (G20)
Butane (G30) / Propane (G31)
* Gas consumption figures express the lowest calorific power of pure gas under standard conditions at 15°C – 1013 mbar; this figure may differ from the actual
figure, which is dependent on gas composition and environmental conditions.
25/55 BF
kW
kW
kW
kW
W
V-Hz
230-50
W
IP
°C
40÷80
l
bar
°C
l
bar
°C
10÷60
l/min
l/min
bar
l
min
l
°C
100/125
g/s
17/17
No.
1312BU5344
B
/C
22P-52P
3 (< 150 mg/kWh)
kg
n°
mm
mm
m
3
/h
kg/h
mbar
2.2/13.2
mbar
4.6/28.5
mbar
4.6/36.5
mbar
mbar
28–30 / 37
30/55 BF
25. 1
9.3
27.0
10.8
93.0
91.5
100
100
X5D
5.9
3
85
10
1
14.7
12.0
7
60
6
2,5
100/125
1312BU5344
II
2H3+
B
/C
12-32-42-52-62-82
22P-52P
3 (< 150 mg/kWh)
79
12
1.30
0.79
2.86
2. 1 3
2.2/13.7
4.5/28.2
4.5/36.2
20
28–30 / 37
29.8
10.9
32.0
12.8
93.0
91.5
109
230-50
120
X5D
40÷80
5.9
3
85
10
1
10÷60
15.0
13.9
7
60
6
2,5
20/20
II
2H3+
12-32-42-52-62-82
80
14
1.30
0.80
3.39
2.52
20
ES
PT
ENG
61