FERtech 25 OV
34
Cod. 3540U431 - 11/2009 (Rev. 00)
4.4 Technical data table
Maximum working temperature in heating
°C
Total boiler water content
litres
Weight empty
kg
Max electrical power absorbed
W
85
1.5
27
50
Max. CH Heat input
Max. natural Gas flow rate (G20)
Natural Gas supply pressure (G20)
Max. LPG flow rate (G31)
LPG supply pressure (G31)
kW
26.6
5.7
m
3
/h
20
mbar
2.67
0.56
kg/h
37
mbar
1.97
0.41
Max. useful heat output 80° C - 60° C
Max. useful heat output 50° C - 30° C
Max. CO2 (G20 - Natural Gas)
%
Max. CO2 (G31 - Propane)
%
Max. flue gas temperature 80°C - 60°C
°C
Max. flue gas temperature 50°C - 30°C
°C
Max. flue gas flow rate
kg/h
kW
25.2
5.3
kW
24.6
5.2
NOx emission class
5
Energy marking (92/42 EEC directive)
Table 10
Gas Injector (G20 - Natural Gas)
Gas Injector (G31 - Propane)
Electrical protection rating
IP
Power voltage/frequency
V/Hz
X5D
230/50
%
%
%
98.3
97.3
105.4
107.2
109.1
Max. working pressure in heating
bar
3
0.3
Type of unit
C13-C23-C33-C43-C53
C63-C83-B23-B33
PIN CE
0063 BR 3161
kW
kW
kW
%
%
m
3
/h
kg/h
°C
°C
kg/h
bar
Min. CH Heat input
Min. useful heat output 80° C - 60° C
Min. useful heat output 50° C - 30° C
Min. natural Gas flow rate (G20)
Min. LPG flow rate (G31)
Unit
Value
Min. flue gas temperature 80°C - 60°C
Min. flue gas temperature 50°C - 30°C
Min. flue gas flow rate
Min. working pressure in heating
Efficiency Pmax 80° C - 60° C
Efficiency Pmin 80° C - 60° C
Efficiency Pmax 50° C - 30° C
Efficiency Pmin 50° C - 30° C
Efficiency 30%
6.20
4.7
9.2
42.4
10
Min. CO2 (G20 - Natural Gas)
%
9
8.5
Min. CO2 (G31 - Propane)
%
9.5
64
60
46
31
Heating expansion pressure tank capacity
Heating expansion pressure prefilling pressure
litres
bar
8
1
