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Optimax 25 OV
4.4 Technical data table
Table 7
Powers
Hi Heating power
Useful Heating Power 80° C - 60° C
Useful Heating Power 50° C - 30° C
Natural Gas delivery (G20)
Natural Gas supply pressure (G20)
LPG flow rate (G31)
LPG supply pressure (G31)
Combustion
CO2 (G20 - Natural Gas)
Gas nozzle (G20 - Natural Gas)
CO2 (G31 - Propane)
Gas nozzle (G31 - Propane)
Flue temperature 80° C-60° C
Flue temperature 50° C-30° C
Flue flow rate
Quantity of condensate
pH of condensation water
Energy marking (92/42 EEC directive)
NOx emission class
Heating
Heating temperature adjustment range
Maximum working pressure in heating
Minimum working pressure in heating
Expansion vessel capacity
Expansion vessel pre-filling pressure
Total boiler water content
Dimensions, weights connections
Height
Width
Depth
Weight empty
Gas system connection
Heating system connections
Maximum length of separate flues D=80*
(*Measurement given in equivalent linear metres – cfr FERROLI calculation system)
Electrical power supply
Max electrical power absorbed
Pmax
Pmin
kW
25,2
7,5
kW
24,7
7,3
kW
26,4
8,0
3
m
/h
2,67
0,79
mbar
20
20
kg/h
1,96
0,58
mbar
37
37
Pmax
Pmin
%
9,0
8,7
5,4
%
10
9,5
4,0
°C
65
60
°C
46
31
kg/h
43
13
kg/h
3,3
1,4
pH
4,1
5
°C
30 - 90
bar
3
bar
0.8
litres
8
bar
1
litres
1,7
mm
720
mm
400
mm
358
kg
34
22
22
m
75
eq
W
50
33
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