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5.3 Technical data table
The column on the right gives the abbreviation used on the dataplate.
Data
Max. heating capacity
Min. heating capacity
Max. Heat Output in heating
Min. Heat Output in heating
Max. Heat Output in hot water production
Min. Heat Output in hot water production
Burner nozzles G20
Gas supply pressure G20
Max. pressure downstream of gas valve (G20)
Min. pressure downstream of gas valve (G20)
Max. gas delivery G20
Min. gas delivery G20
Burner nozzles G31
Gas supply pressure G31
Max. pressure downstream of gas valve (G31)
Min. pressure downstream of gas valve (G31)
Max. gas delivery G31
Min. gas delivery G31
Efficiency class Directive 92/42 EEC
NOx emission class
Max. working pressure in heating
Min. working pressure in heating
Max. heating temperature
Heating water content
Heating expansion tank capacity
Heating expansion tank prefilling pressure
Max. working pressure in hot water production
Min. working pressure in hot water production
Hot water content
Expansion tank capacity. DHW.
Expansion tank pre-filling pressure. DHW.
DHW flowrate t 30°C
DHW flowrate t 30°C
Protection rating
Power supply voltage
Electrical power input
Electrical power input in hot water production
Empty weight
Type of unit
PIN CE
38
EN
DIVAtop ST 24 C DIVAtop ST 32 C
Unit
Value
Value
kW
25.8
34.4
kW
8.3
11.5
kW
23.5
31.3
kW
7.0
9.7
kW
23.5
31.3
kW
7.0
9.7
no. x Ø
11 x 1.35
15 x 1.35
mbar
20
20
mbar
12.0
12.0
mbar
1.5
1.5
nm
/h
2.73
3.64
3
nm
/h
0.88
1.22
3
no. x Ø
11 x 0.79
15 x 0.79
mbar
37.0
37
mbar
35.0
35.0
mbar
5.0
5.0
4.22 kg/h
2.00
2.69
kg/h
0.65
0.90
-
-
5 (<70 mg/kWh)
bar
3
3
bar
0.8
0.8
°C
90
90
litres
1.0
1.2
litres
8
10
bar
1
1
bar
9
9
bar
0,25
0.25
litres
25
25
litres
2
2
bar
3
3
l/10min
145
180
l/h
700
930
IP
X5D
X5D
V/Hz
230V/50Hz
230V/50Hz
W
80
90
W
80
90
kg
44
47
B
11BS
0461BR0843
cod. 3540S161 - Rev. 00 - 10/2013
5.4 Diagrams
(Q)
(Q)
(P)
(P)
DIVAtop ST 24 C - A = LPG, B = NATURAL GAS
DIVAtop ST 32 C - C = LPG, D = NATURAL GAS
H [m H
O]
2
7
6
3
5
2
4
3
1
(NOx)
(PMS)
2
1
(tmax)
0
0
500
fig. 27 - Circulating pump head / pressure losses DIVAtop ST 24 C
A
Boiler pressure losses
(PMW)
1 - 2 - 3
Circulating pump speed
H [m H
O]
7
2
3
6
2
(D)
5
4
1
3
2
1
0
0
fig. 28 - Circulating pump head / pressure losses DIVAtop ST 32 C
A
Boiler pressure losses
1 - 2 - 3
Circulating pump speed
DIVAtop ST C
A
B
fig. 26 - Pressure/power diagram
1.000
Q [l/h]
500
1.000
1.500
C
D
A
1.500
2.000
A
5
4
Q [l/h]
2.000
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