14
VISION PLUS 25C
Seasonal space heating energy efficiency class
A
Water heating energy efficiency class
A
Parameter
Symbol
Value
Unit
Parameter
Symbol
Value
Unit
Rated heat output
Prated
20
kW
Seasonal space heating
energy efficiency
ηs
93
%
For boiler space heaters and boiler combination
heaters: useful heat output
For boiler space heaters and boiler combination
heaters: useful efficiency
At rated heat output and high-
temperature regime (*)
P4
19,5
kW
At rated heat output and high-
temperature regime (*)
η4
87,7
%
At 30% of rated heat output and
low-temperature regime (**)
P1
6,5
kW
At 30% of rated heat output and
low-temperature regime (**)
η1
97,8
%
Auxiliary electricity consumption
Other parameters
At full load
elmax
29,0
W
Stand-by heat loss
Pstby
40,0
W
At part load
elmin
10,8
W
Pilot flame energy consumption
Pign
-
W
In Stand-by mode
PSB
3,0
W
Annual energy consumption
QHE
53
GJ
Sound power level, indoors
LWA
53
dB
Emissions of nitrogen oxides
NOx
30
mg/kWh
For combination heaters:
Declared load profile
XL
Water heating energy efficiency
ηwh
85
%
Daily electricity consumption
Qelec
0,134
kWh
Daily fuel consumption
Qfuel
23,024
kWh
Annual electricity consumption
AEC
29
kWh
Annual fuel consumption
AFC
17
GJ
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet).
VISION PLUS 30C
Seasonal space heating energy efficiency class
A
Water heating energy efficiency class
A
Parameter
Symbol
Value
Unit
Parameter
Symbol
Value
Unit
Rated heat output
Prated
24
kW
Seasonal space heating
energy efficiency
ηs
93
%
For boiler space heaters and boiler combination
heaters: useful heat output
For boiler space heaters and boiler combination
heaters: useful efficiency
At rated heat output and high-
temperature regime (*)
P4
24,5
kW
At rated heat output and high-
temperature regime (*)
η4
87,6
%
At 30% of rated heat output and
low-temperature regime (**)
P1
8,1
kW
At 30% of rated heat output and
low-temperature regime (**)
η1
97,8
%
Auxiliary electricity consumption
Other parameters
At full load
elmax
38,0
W
Stand-by heat loss
Pstby
35,0
W
At part load
elmin
13,5
W
Pilot flame energy consumption
Pign
-
W
In Stand-by mode
PSB
3,0
W
Annual energy consumption
QHE
63
GJ
Sound power level, indoors
LWA
56
dB
Emissions of nitrogen oxides
NOx
30
mg/kWh
For combination heaters:
Declared load profile
XL
Water heating energy efficiency
ηwh
85
%
Daily electricity consumption
Qelec
0,128
kWh
Daily fuel consumption
Qfuel
22,947
kWh
Annual electricity consumption
AEC
28
kWh
Annual fuel consumption
AFC
17
GJ
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet).
NOTE
(if the outdoor temperature sensor or the control panel, or even both devices, are present in the boiler)
With reference to the Delegated Regulation (EU) No. 811/2013, the information in the table can be used for completing the prod-
uct data sheet and the labelling for room heating appliances, for mixed heating appliances, for all those appliances for enclosed
space heating, for temperature control devices and solar devices:
ADDED DEVICES
CLASS
BONUS
OUTDOOR TEMPERATURE SENSOR
II
2%
CONTROL PANEL*
V
3%
OUTDOOR TEMPERATURE CONTROL PANEL*
VI
4%
(*) Set as ambient regulator