7
Models
25/55
30/55
Heat output
Nominal (80-60°C)
kW
23.9
28.9
Nominal (50-30°C)
kW
26.2
31.6
Reduced G20 (80-60°C)
kW
6.1
7.6
Reduced G20 (50-30°C)
kW
7.0
8.5
Reduced G31 (80-60°C)
kW
7.5
8.7
Reduced G31 (50-30°C)
kW
8.5
9.6
Heat input
Nominal
kW
24.5
29.5
Reduced G20/G31
kW
6.5/8.0
8.0/9.0
Max/min useful yield (80-60°C)
%
94/97.5
95/98
Max/min useful yield (50-30°C)
%
107/107
107/107
Useful yield at 30% of the load (50-30°C)
%
107
107
Termal efficiency (CEE 92/42 directive)
Losses after shutdown to 50°C (EN 483)
W/h
90
95
Supply voltage
V-Hz
230-50
230-50
Adsorbed power consumption
W
115
115
Electrical protection grade
IP
X4D
X4D
C.H. setting range
°C
20/80
20/80
Water content boiler
l
9.6
10
Maximum water head
bar
3
3
Maximum temperature
°C
85
85
Capacity/pressure of the heating expansion vessel
l/bar
10/1
10/1
Normal operating pressure of the system (max)
bar
5.5 5.5
D.H.W. setting range
°C
30/60
30/60
D.H.W. flow rate (EN 625)
l/min
15.5
17.5
Continuous D.H.W. flow rate
∆
t 30°C
l/min
11.4
13.8
Continuous D.H.W. flow rate
∆
t 35°C
l/min
9.8
11.8
D.H.W pressure min/max
bar
0.2/5.5
0.2/5.5
D.H.W. tank capacity
l
51
51
Recuperation time between 15 and 60°C
min
9’ 55”
10’ 10”
Recuperation heat of 70% contents
min
3’ 40”
3’ 30”
D.H.W. expansion vessel capacity / charge pressure
l/bar
2.5/3.0
2.5/3.0
Exhaust fumes temperature at max flow rate (80-60°C)
°C
70
70
Exhaust fumes temperature at min. flow rate (80-60°C)
°C
65
65
Exhaust fumes temperature at max flow rate (50-30°C)
°C
40
40
Exhaust fumes temperature at min. flow rate (50-30°C)
°C
35
35
Smokes flow min/max
kg/h
12/42
14/50
CO
2
at max/min flow rate G20 - G31
%
9.0/9.0 - 10.0/10.0
9.0/9.0 - 10.0/10.0
CE certification
n°
1312BS5039
1312BS5039
Category
II2H3P
II2H3P
Type
B23P-53P/C13-33-43-53-83
B23P-53P/C13-33-43-53-83
NOx emission class
5 (< 70 mg/kWh)
5 (< 70 mg/kWh)
Weight when empty
kg
68
70
Main burner nozzle
Quantity nozzles
n°
1
1
G20/G31 nozzle diameter
ø
6.0/4.4
6.0/4.4
Consumption at maximum/minimum flow rate
G20
m
3
/h
2.59/0.53
3.12/0.66
G31
kg/h
1.90/0.62
2.29/0.62
Gas supply pressure
G20/G31
mbar
20/37
20/37
1.4
TECHNICAL FEATURES
