82
* 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.
Models
25 OF
30 OF
25 BF
30 BF
35 BF
20 BFT
25 BFT
Heat output
Nominal
kW
23.0
27.0
23.7
28.0
32.4
19.8
23.7
Reduced kW
8.7
10.2
8.8
10.4
11.8
7.3
8.8
Heat input
Nominal
kW
25.5
30.0
25.5
30.0
34.8
21.3
25.5
Reduced kW
10.2
12.0
10.2
12.0
13.5
8.5
10.2
Thermal yield 100% useful
90.0
90.0
93.0
93.3
93.1
93.0
93.0
Thermal yield useful at 30% of load
89.5
89.5
92.0
92.0
92.0
92.0
92.0
Termal efficiency (CEE 92/42 directive)
Losses after shutdown to 50°C (EN 483)
W
200
235
89
96
96
89
89
Supply voltage
V-Hz
230-50
230-50
230-50
230-50
230-50
230-50
230-50
Adsorbed power consumption
W
75
90
100
115
135
105
105
Electrical protection grade
IP
X4D
X4D
X4D
X4D
X4D
X4D
X4D
C.H. setting range
°C
20÷80
20÷80
20÷80
20÷80
20÷80
20÷80
20÷80
Water content boiler
l
7.1
8.0
7.1
8.0
8.0
7.1
7.1
Maximum water head
bar
3
3
3
3
3
3
3
Maximum temperature
°C
85
85
85
85
85
85
85
Expansion vessel capacity
l
7
8
7
8
8
7
7
Expansion vessel pressure
bar
1
1
1
1
1
1
1
D.H.W. setting range
°C
10÷65
10÷65
10÷65
10÷65
10÷65
-
-
D.H.W. flow rate (EN 625)
l/min
10.7
12.7
11.1
13.2
15.3
-
-
Continuous D.H.W. flow rate
∆
t 30°C
l/min
10.9
12.9
11.3
13.4
15.5
-
-
Minimum D.H.W. flow rate
l/min
2.4
2.4
2.4
2.4
2.4
-
-
D.H.W pressure min/max
bar
0.2/7
0.2/7
0.2/7
0.2/7
0.2/7
-
-
D.H.W. pressure min. nom. power
bar
0.5
0.65
0.5
0.65
0.8
-
-
Smokes temperature min/max
°C
88/122
95/135
100/125
100/125
95/130
95/115
100/125
Smokes flow min/max
g/s
18/20
18/20
16/16
18/18
21/21
15/15
16/16
CE certification
No.
1312BU5345
1312BU5344
Category
II
2H3+
II
2H3+
Type of appliance
B
11BS
B
22P-52P
/C
12-32-42-52-62-82
NOx emission class
3 (<150 mg/kWh)
3 (<150 mg/kWh)
Weight when empty
kg
30
33
38
40
40
37
37
Main burner nozzle
Quantity nozzles
n°
12
14
12
14
15
10
12
G20 nozzle diameter
mm
1.30
1.30
1.30
1.30
1.30
1.30
1.30
G30/G31 nozzle diameter
mm
0.77
0.77
0.77
0.77
0.80
0.76
0.77
Gas consumption *
Natural gas (G20)
m
3
/h
2.70
3.17
2.70
3.17
3.68
2.25
2.70
LPG (G30/G31)
kg/h
2.01
2.37
2.01
2.37
2.74
1.68
2.01
Burner gas pressure min/max
Natural gas (G20)
mbar
1.8/11.0
1.9/11.1
2.0/11.8
2.1/12.0
2.2/13.7
1.9/11.0
2.0/11.8
Butane (G30)
mbar
4.7/27.7
4.8/27.7
4.8/28.5
5.0/28.5
4.5/28.2
4.8/28.5
4.8/28.5
Propane (G31)
mbar
4.7/35.7
4.8/35.7
4.8/36.5
5.0/36.5
4.5/36.2
4.8/36.5
4.8/36.5
Gas supply pressure
Natural gas (G20)
mbar
20
20
20
20
20
20
20
Butane (G30)
mbar
28–30
28–30
28–30
28–30
28–30
28–30
28–30
Propane (G31)
mbar
37
37
37
37
37
37
37
1.3
TECHNICAL FEATURES
Summary of Contents for MURELLE EV 20 BFT
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