Riello Vokera VISION PLUS 20 S User Instructions page 14

Parameter
Seasonal space heating energy efficiency class
Water heating energy efficiency class
Rated heat output
Seasonal space heating energy efficiency
Useful heat output
At rated heat output and high-temperature regime (*)
At 30% of rated heat output and low-temperature
regime (**)
Useful efficiency
At rated heat output and high-temperature regime (*)
At 30% of rated heat output and low-temperature
regime (**)
Auxiliary electricity consumption
At full load
At part load
In Stand-by mode
Other parameters
Stand-by heat loss
Pilot flame energy consumption
Annual energy consumption
Sound power level, indoors
Emissions of nitrogen oxides
For combination heaters
Declared load profile
Water heating energy efficiency
Daily electricity consumption
Daily fuel consumption
Annual electricity consumption
Annual fuel consumption
(*) 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 product
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
OUTDOOR TEMPERATURE SENSOR
CONTROL PANEL*
OUTDOOR TEMPERATURE SENSOR + CONTROL PANEL*
(*) Set as ambient regulator
14
Symbol VISION PLUS
20S
- A
- -
Pnominal 19
ηs 92
P4 19,5
P1 6,5
η4 87,1
η1 96,7
elmax 28,0
elmin 14,0
PSB 3,0
Pstby 35,1
Pign -
QHE 53
LWA 50
NOx 25
-
ηwh -
Qelec -
Qfuel -
AEC -
AFC -
CLASS
VISION PLUS VISION PLUS
25S 30S
A A
- -
24 29
92 92
24,4 29,3
8,1 9,7
87,6 87,6
96,5 96,5
30,0 41,0
14,0 14,0
3,0 3,0
38,0 38,0
- -
58 65
50 52
25 43
- -
- -
- -
- -
- -
- -
BONUS
II
V
VI
Unit
-
-
kW
%
kW
kW
%
%
W
W
W
W
W
GJ
dB
mg/kWh
%
kWh
kWh
kWh
GJ
2%
3%
4%