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4.4
Technical data Advance Plus
25S ERP
Heat input
Nominal net
(A)
Nominal gross
(B)
Minimun net
(A)
Minimun gross
(B)
Useful output
Maximun
Minimun
Maximun condensing
Minimun condensing
TECHNICAL INFORMATION
kW
25,0
BTU/h 85304
kW
27,8
BTU/h 94687
kW
6,0
BTU/h 20473
kW
6,7
BTU/h 22725
kW
24,4
BTU/h 83256
kW
5,8
BTU/h 19790
kW
26,6
BTU/h 90763
kW
6,5
BTU/h 22179
Central heating
Min/Max flow temperature settings*
Maximum pressure
Minimum pressure
Available head (in 1000 l/h)
Seasonal efficency G20
(c)
Seasonal efficency G31
(c)
* to the minimum useful output
referred to the net calorific value at 15 °C and
(A)
1013,25 mbar: G20 = 34,02 MJ/m
kg
referred to the gross calorific value at 15 °C and
(B)
1013,25 mbar: G20 = 37,78 MJ/m
kg
The value is used in the UK Government's Standard
(C)
Assessment Procedure (SAP) for energy rating of
dwellings. The test data from which it has been calcu-
lated have been certified by a notified body.
Values subject to tolerance
(D)
Gas supply pressures
Gas
Nom
Min
Natural G20
Max
Nom
Propane G31
Min
Max
Gas rate maximum
Natural G20
Propane G31
Gas rate minimum
Natural G20
Propane G31
°C
25 - 85
kPa
250
bar
2,5
kPa
30
bar
0,3
kPa
23,0
bar
0,23
%
88,8
%
89,8
- G31 = 46,34 MJ/
3
- G31 = 50,37 MJ/
3
Pa
mbar
2000
20
1700
17
2500
25
3000
30
2000
20
3500
35
m
/h
2,67
3
kg/h
1,97
m
/h
0,64
3
kg/h
0,47
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