Technical Data Table - Ferroli OPTIMAX 25 S Instructions For Use, Installation And Maintenance

4.4 Technical data table

Table 7
Powers
Hi Heating power
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 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 tank capacity
Expansion tank pre-filling pressure
Total boiler water content
Dimensions, weights connections
Height
Width
Depth
Weight with no load
Gas system connection (with isolation valve fitted)
Heating system connections (with isolation valve fitted)
Maximum length of separate flues D=80*
(*Measurement given in equivalent linear metres – cfr FERROLI calculation system)
Electrical power supply
Max electrical power absorbed
Electric power drawn by the circulator (Speed I-II-III)
32
Optimax 25 S
Pmax Pmin
kW 25.2
kW 24.7
kW 26.4
3
nm /h 2.67
mbar 20
kg/h 1.96
mbar 37
Pmax Pmin
% 9
5.4
% 10
4.0
°C
65
°C
46
kg/h 43
kg/h 3.3
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 43
mm 22
mm 22
m 75
eq
W 130
W 40-65-90
7.5
7.3
8.0
0.79
20
0.58
37
8.7
9.5
60
31
13
1.4