92
1.4
TECHNICAL FEATURES
*
When the
“BT130 - BT150”
tank units is connected to the boiler with the kit provided and the optional D.H.W. expansion vessel.
**
Flow calculated with a fixed temperature on the D.H.W. potentiometer of 60°C for a maximum period of 10 minutes.
***
The gas flow refers to the inferior calorific value in standard conditions of 15°C - 1013 mbar
Heating only
Combined
D.H.W. tank
22 OF
32 OF
32/50 OF
32/80 OF
BT130
BT150
Heat output
Nominal
kW
17,8÷23,7
24,1÷31,6
24,1÷31,6
24,1÷31,6
––
kcal/h
15.300÷20.400 20.700÷27.200
20.700÷27.200 20.700÷27.200
––
Minimal
kW
17,8
24,1
24,1
24,1
––
kcal/h
15.300
20.700
20.700
20.700
––
Heat input
Nominal
kW
19,5÷26,0
26,1÷34,8
26,1÷34,8
26,1÷34,8
––
Minimal
kW
19,5
26,1
26,1
26,1
––
Sections
n°
4
5
5
5
––
Expansion vessel
Capacity/Pre-loading pressure
l/bar
8/1
10/1
10/1
10/1
––
Absorbed power consumption
W
105
125
125
125
––
Maximum water head
bar
4
4
4
4
––
Maximum temperature
°C
85
85
85
85
––
Water content
l
14
16
18
18
–
–
C.H. setting range
°C
40÷80
40÷80
40÷80
40÷80
––
D.H.W. setting range
°C
10÷60*
10÷60*
10÷60
10÷60
––
Category
II
2H3P
II
2H3P
II
2H3P
II
2H3P
–
–
Type
B
11BS
B
11BS
B
11BS
B
11BS
–
–
Smokes temperature
°C
108
110
116
119
––
Smokes flow
gr/s
18,5
23,2
23,0
23,0
––
CO at 0% of O
2
min./max (G20)
ppm
10/4
10/8
7/8
10/6
––
CO at 0% of O
2
min./max (G31)
ppm
5/10
7/6
7/7
7/6
––
NOx at 0% of O
2
average value (G20)
ppm
13
13
13
13
––
NOx class
5
5
5
5
–
–
D.H.W production
Tank capacity
l
––50
80
130
150
D.H.W. flow rate (EN 625)**
l/min
––
16,2
17,3
23,5
28,9
Continuous D.H.W. flow rate
∆
t 30°C
l/h
––810
726
900
918
D.H.W expansion vessel
l
4*
4*
2,5
4
––
D.H.W. maximum water head
bar
7*
7*
7
7
––
Recovery time from 25 to 55°C
min
–– 5’
9’ 30”
10’
15’
Main gas nozzles
Quantity
n°
3
3
3
3
––
Methane (G20)
ø mm
2,40
2,75
2,75
2,75
––
Propane (G31)
ø mm
1,55 N
1,80
1,80
1,80
––
Pilot nozzles
Methane (G20)
ø mm
0,45
0,45
0,45
0,45
––
Propane (G31)
ø mm
0,25
0,25
0,25
0,25
––
Gas flow***
Methane (G20)
m
3
st/h
2,75
3,68
3,68
3,68
––
Propane (G31)
kg/h
1,97
2,64
2,64
2,64
––
Gas burner pressure
Methane (G20)
mbar
7,3÷12,7
7,3÷12,7
7,3÷12,7
7,3÷12,7
––
Propane (G31)
mbar
16,6÷28,4
16,6÷28,4
16,6÷28,4
16,6÷28,4
––
Gas flow pressure
Methane (G20)
mbar
20
20
20
20
––
Propane (G31)
mbar
37
37
37
37
––
Weight
kg
139
170
225
238
89
117
