Riello Vokera Linea ONE, Installation & Servicing Instructions Manual, Page: 7 / 40

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2.11 Emissions Linea ONE
NOx (max-min) 30 - 15 p.p.m.
CO (max-min) 150 - 10 p.p.m.
CO
2
(max-min) 9,0 - 9,5 %
CO/CO
2
ratio (max) 0,0017 to 1
CO/CO
2
ratio (min)
0,0001 to 1
Ref. Condition 15 °C, 1013,25 mbar, dry gas
NOTE: L.P.G. data refer to section 10
2.13 PUMP DUTY
Linea ONE boilers are fitted with a variable speed circulation unit
that is already connected up in terms of plumbing and electrics, and
the usable performance it provides is shown in the graph.
The boilers are fitted with an anti-blocking system that starts an
operating cycle every 24 hours when not used, irrespective of the
position of the function selector.
The “anti-blocking” function is only active when the electrical power
supply to the boiler is on.
Operating the circulation system without any water is strictly forbid-
den.
VARIABLE SPEED CIRCULATION UNIT
The modulating circulating function is only active for the heating func-
tion. When switching the three ways on the plate heat exchanger,
the circulation unit is set at maximum speed. The modulating
circulation function applies only to the boiler circulation unit and
not to circulation units on any external devices connected to it (e.g.
booster circulation unit).
Any of 4 operating modes can be chosen, depending on situations
and the type of plant.
By accessing parameter 90 in the technical menu, one of the fol-
lowing possibilities can be chosen:
2.12 Range rated (parameter 23)
Input fan speed (rpm) CO (ppm) - less than
3,8 kW 1200 10
6 kW 1750 20
8 kW 2050 28
10 kW 2300 35
12 kW 2600 45
14 kW 2850 55
16 kW 3100 65
18 kW 3350 75
20 kW 3650 85
22 kW 3850 97
24 kW 4150 108
26 kW 4400 120
28 kW 4650 130
30 kW 5000 150
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 29 kW
Seasonal space heating
energy efficiency
η
s 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 29,3 kW
At rated heat output and high-temperature
regime (*)
η
4 88,2 %
At 30% of rated heat output and low-tem-
perature regime (**)
P1 9,8 kW
At 30% of rated heat output and low-tem-
perature regime (**)
η
1 98,2 %
Auxiliary electricity consumption Other parameters
At full load elmax 44,0 W Stand-by heat loss Pstby 44,0 W
At part load elmin 18,5 W Pilot flame energy consumption Pign - W
In Stand-by mode PSB 7,6 W Annual energy consumption QHE 51 GJ
Sound power level, indoors LWA 55 dB
Emissions of nitrogen oxides NOx 19
mg/
kWh
For combination heaters:
Declared load profile XL Water heating energy efficiency
η
wh 83 %
Daily electricity consumption Qelec 0,290 kWh Daily fuel consumption Qfuel 23,070 kWh
Annual electricity consumption
AEC 64 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).