Beretta CIAO X 25C MTN - Page 5

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PARAMETERS UM METHAN GAS (G20) LPG (G31)
Lower Wobbe index (at 15°C-1013 mbar) MJ/m³S 45,67 70,69
Net Caloric Value MJ/m³S 34,02 88
Supply nominal pressure mbar (mm H2O) 20 (203,9) 37 (377,3)
Minimum supply pressure mbar (mm H2O) 10 (102,0) -
25C 30C 25C 30C
Burner: diameter/length mm 70/88 70/105 70/88 70/105
Diaphragm: holes number - holes diameter n° - mm 1 - 4,5 1 - 5,1 1 - 3,6 1 - 3,8
CH maximum gas capacity
Sm³/h 2,12 2,64 - -
kg/h - - 1,55 1,94
DHW maximum gas capacity
Sm³/h 2,64 3,17 - -
kg/h - - 1,94 2,33
CH minimum gas capacity
Sm³/h 0,33 0,42 - -
kg/h - - 0,39 0,39
DHW minimum gas capacity
Sm³/h 0,33 0,42 - -
kg/h - - 0,39 0,39
Number of fan rotations with slow ignition rpm 5.500 5.500 5.500 5.500
Maximum number of CH fan rotations rpm 7.000 6.900 6.900 6.800
Maximum number of DHW fan rotations rpm 8.700 8.300 8.500 7.900
Minimum number of CH/DHW fan rotations rpm 1.500 1.500 2.050 1.700
Max n° of DHW fan rotations in C(10) conguration (Ø80/125 ● Ø80-80) rpm 9.200 7.000 - -
Min n° of CH/DHW fan rotations in C(10) conguration (Ø80/125 ● Ø80-80) rpm 2.100 2.100 - -
2.1 Erp data
Parameter Symbol 25C 30C Unit
Seasonal space heating energy efficiency class - A A -
Water heating energy efficiency class - A A -
Rated heat output Pnominal 19 24 kW
Seasonal space heating energy efficiency ηs 93 93 %
Useful heat output
At rated heat output and high-temperature regime (*) P4 19,4 24,4 kW
At 30% of rated heat output and low-temperature regime (**) P1 6,5 8,2 kW
Useful efficiency
At rated heat output and high-temperature regime (*) η4 87,3 87,6 %
At 30% of rated heat output and low-temperature regime (**) η1 98,5 98,2 %
Auxiliary electricity consumption
At full load elmax 32,0 38,0 W
At part load elmin 12,0 12,0 W
In Stand-by mode PSB 3,0 3,0 W
Other parameters
Stand-by heat loss Pstby 30,0 32,0 W
Pilot flame energy consumption Pign - - W
Annual energy consumption QHE 42 56 GJ
Sound power level, indoors LWA 50 53 dB
Emissions of nitrogen oxides NOx 22 22 mg/kWh
For combination heaters
Declared load profile XL XL
Water heating energy efficiency ηwh 84 84 %
Daily electricity consumption Qelec 0,133 0,152 kWh
Daily fuel consumption Qfuel 23,183 23,306 kWh
Annual electricity consumption AEC 29 33 kWh
Annual fuel consumption AFC 18 18 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).
Description CIAO X boiler type
25 C
30 C
25 C
30 C
25 C
30 C
C4 C6 C8
Temperature of the ue gases in nominal conditions (at 80/60°C) [°C] 58,5 60 63,5 64,8 51,2 48
Mass ow rate [m
3
/h] @ nominal output [kW] 2,721 3,153 2,757 3,352 2,799 3,25
Nominal output [kW] 25,93 30,01 25,64 30,85 26,67 30,93
Overtemperature of the ue gases [°C] 115
Temperature of the ue gases at minimum output [°C] 45,2 48,3 58,4 59,3 40 35,5
Mass ow rate at the minimum heat output [m
3
/h] @ reduced power [kW] 0,498 0,839 0,364 0,457 0,873 0,952
Minimum nominal output [kW] 4,8 8,06 3,34 4,2 8,38 9,09
CO2 content in nominal conditions [%] 8,50 8,95 10,35 10,24 5,40 5,20
CO2 at the minimum heat output [%] 3,25 7,32 9,65 9,75 2,63 2,22
Loss of minimum permitted pressure (in air feed and ue gas pipe) [Pa] 8 9 - - - -
Loss of maximum permitted pressure (in air supply and ue gas pipe) [Pa] 180 190 - - - -
Maximum permitted pressure di󰀨erence between combustion air inlet and ue gas
outlet (including wind pressure) [Pa]
- - 8 9 - -
Maximum permitted combustion air temperature [°C] - - 45 45 - -
C9
25 C
30 C
Minimum e󰀨ective diameter of the ue/utility compartment [mm] 240
Notes
C1: - For the installation of the terminals on the wall and roof, refer to the specic instructions contained in the kits.
- The terminals emerge from separate combustion and air supply circuits within a square area of 50 cm.
C3: - The terminals of the separate combustion and air supply circuits must lie within a square area of 50 cm, and the distance between the surfaces of the two
holes must be less than 50 cm.
C4: - The boilers in this conguration, with the relative connection pipes, can be connected to only one natural draught stacke.
- Condensate ow inside the appliance is not permitted.
C5: - The terminals for combustion air supply and the evacuation of ue gases must not be installed on opposite walls of the building.
C6: - Condensate ow inside the appliance is permitted.
- Maximum permitted recirculation rate of 10% in windy conditions.
- The terminals for combustion air supply and the evacuation of ue gases must not be installed on opposite walls of the building.
This type of conguration is not permitted in some countries; refer to the local regulations in force.
C8: - Condensate ow inside the appliance is not permitted.