71
1.3
TECHNICAL FEATURES
* The gas consumptions refer to the calorific value at standard conditions at 15°C - 1013 mbar.
25 OF C
30 OF C
25 BF TS
30 BF TS
Heat output
Nominal
kW
23.3
28.6
25.6
30.4
kcal/h
20,000
24,600
22,000
26,100
Minimum
kW
9.3
11.7
9.1
11.7
kcal/h
8,000
10,100
7,800
10,100
Heat input
Nominal
kW
25.8
31.6
27.5
32.5
Minimum
kW
10.8
13.5
10.8
13.5
Termal efficiency (CEE 92/42 directive)
★★
★★
★★★
★★★
Class NOx
3
3
3
3
Water content
l
2.4
3.8
3.4
4.8
Adsorbed power consumption
W
105
110
160
190
Electrical protection grade
IP
X4D
X4D
X4D
X4D
Maximum water head
bar
3
3
3
3
Maximum temperature
°C
95
95
95
95
Expansion vessel
Water content
l
7
10
7
10
Preloading pressure
bar
1
1
1
1
CH. setting range
°C
40÷80
40÷80
40÷80
40÷80
D.H.W. setting range
°C
40÷60
40÷60
40÷60
40÷60
Smokes temperature
°C
117
116
152
130
Smokes flow
gr/s
21.4
24.2
16.5
19.3
Losses after shutdown to 50°C
W/h
181
206
112
118
Category
II
2H3+
II
2H3+
II
2H3+
II
2H3+
Type
B
11BS
B
11BS
B
22-52
/C
12
-
32
-
42
-
52-82
B
22-52
/C
12
-
32
-
42
-
52-82
D.H.W. production
D.H.W. flow rate (EN 625)
l/min
10.5
13.2
11.5
13.8
Continuous D.H.W. flow rate
∆
t 30°C
l/min
11.1
13.6
12.2
14.5
Minimum D.H.W. flow rate
l/min
2
2
2
2
D.H.W minimum pressure
bar
0.5
0.5
0.5
0.5
D.H.W maximum pressure
bar
7
7
7
7
Weight
kg
35
41
43
49
Main burner nozzle
Quantity
n°
13
15
13
15
Methane
ø mm
1.30
1.30
1.30
1.30
G30 - G31
ø mm
0.75
0.77
0.77
0.78
Gas consumption *
Methane
m
3
st/h
2.72
3.34
2.91
3.44
Butane (G30)
kg/h
2.02
2.48
2.17
2.56
Propane (G31)
kg/h
1.99
2.40
2.14
2.52
Burner gas pressure
Methane
mbar
1.9÷9,7
2,1÷10.5
2.1÷12
2.4÷12.5
Butane (G30)
mbar
5÷27,5
5.2÷27.5
4.7÷28.2
4.9÷28.1
Propane (G31)
mbar
5÷35,5
5,2÷35.5
4.7÷36.2
4.9÷36.1
Gas supply pressure
Methane
mbar
20
20
20
20
Butane (G30)/Propane (G31)
mbar
28-30/37
28-30/37
28-30/37
28-30/37
