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CH/DHW nominal heating capacity (Hi)
kW
26,70
31,90
26,30
31,00
kcal/h
22.962
27.434
22.618
26.660
CH/DHW nominal heating power
kW
24,10
28,80
24,00
28,00
kcal/h
20.726
24.768
20.640
24.080
CH reduced heating capacity (Hi)
kW
10,40
10,70
12,70
12,70
kcal/h
8.944
9.202
10.922
10.922
CH reduced heating power
kW
8,70
8,80
10,50
10,50
kcal/h
7.482
7.568
9.030
9.030
DHW reduced heating capacity (Hi)
kW
10,40
10,70
9,80
10,50
kcal/h
8.944
9.202
8.428
9.030
DHW reduced heating power
kW
8,70
8,80
8,10
8,70
kcal/h
7.482
7.568
6.966
7.482
Working efficiency Pn max - Pn min
%
88,1 - 83,7
88,4 - 82,3
91,6 - 83,0
92,1 - 83,2
Working efficiency 30%
%
86,1
86,9
86,2
87,9
Combustion efficiency
%
91,4
91,6
91,8
92,4
Electric power
W
85
85
125
125
Supply voltage
V - Hz
230-50
230-50
230-50
230-50
Protection level
IP
X4D
X4D
X4D
X4D
Chimney and skirt losses with burner off
%
0,07-0,80
0,07-0,80
0,07-0,80
0,07-0,80
CH operation
Maximum pressure - temperature
bar-°C
3 - 90
3 - 90
3 - 90
3 - 90
Minimum pressure for standard operation
bar
0,45
0,45
0,45
0,45
Selection field of CH water temperature
°C
40 - 80
40 - 80
40 - 80
40 - 80
Pump: maximum head available for system
mbar
300
300
300
300
capacity
l/h
1000
1000
1000
1000
Membrane expansion tank
l
10
10
10
10
Expansion vessel pre-charge
bar
1
1
1
1
DHW operation
Maximum pressure
bar
8
8
8
8
Minimum pressure
bar
0,2
0,2
0,2
0,2
Hot water quantity with
∆
t 25° C
l/min
13,8
16,5
13,8
16,1
∆
t 30° C
l/min
11,5
13,8
11,5
13,4
∆
t 35° C
l/min
9,9
11,8
9,8
11,5
Selection field of DHW temperature
°C
40 - 63
40 - 63
40 - 63
40 - 63
Flow regulator
l/min
10
12
10
12
Boiler
l
60
60
60
60
Gas pressure
Category (extra CE countries)
II2H3+
II2H3+
II2H3+
II2H3+
Natural gas pressure (G20)
mbar
20
20
20
20
LPG pressure (G30/G31)
mbar
28-30/37
28-30/37
28-30/37
28-30/37
Category (MT)
I3B/P
I3B/P
I3B/P
I3B/P
LPG pressure (G30/G31)
mbar
30
30
30
30
Hydraulic connections
CH input - output
Ø
3/4”
3/4”
3/4”
3/4”
DHW input - output
Ø
1/2”
1/2”
1/2”
1/2”
Gas input
Ø
3/4”
3/4”
3/4”
3/4”
Boiler dimensions
Height
mm
940
940
940
940
Width
mm
600
600
600
600
Depth
mm
465
465
465
465
Weight
kg
56,5
58,5
65
68
Fan performance
Residual head with 0.85 m concentric pipes
mbar
-
-
0,2
0,2
Residual head of boiler without pipes
mbar
-
-
0,35
0,35
Flow rates (G20)
Air capacity
Nm
3
/h
50,041
55,188
42,862
50,981
Fumes capacity
Nm
3
/h
52,719
58,387
45,499
53,999
Mass flow (max.-min.)
gr/s
18,04 - 16,78
19,91 - 17,98
15,48 - 17,71
18,37 - 20,42
Fume exhaustion pipe
Diameter
mm
130
140
-
-
Fume exhaustion and air suction concentric pipe
Diameter
mm
-
-
60-100
60-100
Max lenght
m
-
-
4,25
3,40
Loss for a 90°/45° bend
m
-
-
0,85/0,5
0,85/0,5
Hall in wall (diameter)
mm
-
-
105
105
Fume exhaustion and air suction separated pipe
Diameter
mm
-
-
80
80
Max lenght
m
-
-
20 + 20
14,5 + 14,5
Loss for a 90°/45° bend
m
-
-
0,85/0,5
0,85/0,5
Forced open installation (B22)
Diameter
mm
-
-
80
80
Flue lenght
m
-
-
25
18
Loss for a 90°/45° bend
m
-
-
0,85/0,5
0,85/0,5
NOx
class 2
class 2
class 2
class 2
Emission values at maximum and minimum of gas G20*
Maximum
CO s.a. lower than
p.p.m.
80
100
110
120
CO
2
%
6,00
6,50
6,90
6,85
Nox s.a. lower than
p.p.m.
150
190
130
160
∆
t fumes
°C
121
126
129
120
Minimum
CO s.a. lower than
p.p.m.
80
80
130
130
CO
2
%
2,50
2,40
2,55
2,35
Nox s.a. lower than
p.p.m.
130
130
100
120
∆
t fumes
°C
82
81
99
96
* Boiler B.A.I.:
check performed by Ø 130 (24 B.A.I.), Ø 140 (28 B.A.I.) - lenght 0,5m - water temperature 80-60°C.
* Boiler B.S.I.:
tested with Ø 80 (0.5 air + 0.5 fumes) separated pipes - 90° bend - water temperature 80-60°C - fumes flange Ø 42 (24 B.S.I.), Ø 44 (28 B.S.I.).
B.S.I.
TABLE 2
B.A.I.
24kW
28kW
24kW
28kW
Содержание B.A.I
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