3 Technical specifications
3.1
Homologations
3.1.1
Certifications
The boiler complies with current standards.
CE identification number: 0085CQ0002
3.1.2
Oil categories
Tab.1
Oil categories
Type of oil that can be used
Maximum viscosity
Standard fuel oil
6 mm
2
/s at 20 °C
Low-sulphur oil
6 mm
2
/s at 20 °C
Bio-oil B10
Mixture of low-sulphur oil (<50 mg/kg) plus 5.9 to 10.9% (in volume) of FAME
(1)
6 mm
2
/s at 20 °C
Bio-oil B5 (or Bio 5)
Mixture of low-sulphur oil (<50 mg/kg) plus 3 to 5.9% (in volume) of FAME
(1)
6 mm
2
/s at 20 °C
(1) Liquid petroleum products — Fatty Acid Methyl Esters used as heating fuel
3.2
Technical data
Tab.2
Technical parameters for boiler space heaters
Product name
EFU C 40
EFU C 50
Condensing boiler
Yes
Yes
Low-temperature boiler
(1)
No
No
B1 boiler
No
No
Cogeneration space heater
No
No
Combination heater
No
No
Rated heat output
Prated
kW
39
48
Useful heat output at rated heat output and high tem
perature regime
(2)
P
4
kW
38.5
48.2
Useful heat output at 30% of rated heat output and low
temperature regime
(1)
P
1
kW
12.1
15.1
Seasonal space heating energy efficiency
ƞ
s
%
88
89
Useful efficiency at rated heat output and high temper
ature regime
(2)
ƞ
4
%
90.2
90.4
Useful efficiency at 30% of rated heat output and low
temperature regime
(1)
ƞ
1
%
94.8
94.6
Auxiliary electricity consumption
Full load
elmax
kW
0.365
0.379
Part load
elmin
kW
0.134
0.137
Stand-by
P
SB
kW
0.004
0.004
Other characteristics
Standby heat loss
P
stby
kW
0.115
0.130
3 Technical specifications
7642053 - v03 - 17112016
EFU C
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