54
EN
5.5 Technical features
DESCRIPTION
Brava One 25 BF Brava One 30 BF
CERTIFICATIONS
Country of intended installation DZ - TN
Fuel G20 - G30/G31
PIN number 1312CP5935
Category II2H3+
Type
B22P - B32P - B52P
C12 - C12X - C32 - C32X - C42 - C42X - C52 - C52X
C62 - C62X - C82 - C82X - C92
Class NO
x
3 (< 150 mg/kWh)
HEATING PERFORMANCE
HEAT INPUT
Nominal kW 25,5 30,0
Minimum kW 9,2 10,8
HEAT OUTPUT
Nominal (80-60°C) kW 23,7 28,1
Minimum (80-60°C) kW 7,8 9,2
EFFICIENCY
Max useful efficiency (80-60°C) % 93,0 93,7
Min useful efficiency (80-60°C) % 84,8 85,2
Useful efficiency at 30% of load (50-30°C) % 90,5 91,1
Thermal efficiency (EEC 92/42)
Losses after shutdown at 50°C W 71 75
DOMESTIC HOT WATER PERFORMANCE
Nominal heat input kW 25,5 30,0
Minimum heat input kW 9,2 10,8
D.H.W. flow rate ∆T 30°C l/min 11,3 13,0
Continuous D.H.W. flow rate (∆T 25°C / ∆T 35°C) l/min 13,6 / 9,7 16,1 / 11,5
Minimum D.H.W. flow rate l/min 2,2 2,2
Max / Min Pressure
bar 7 / 0,4 7 / 0,4
kPa 700 / 40 700 / 40
ELECTRICAL SPECIFICATIONS
Power supply voltage V 230
Frequency Hz 50
Absorbed electrical power W 112 113
Electrical protection degree IP X5D
COMBUSTION DATA
Smoke temperature at Max/Min flow (80-60°C) °C 142,5 / 96,4 151,9 / 100,8
Smoke flow Max/Min g/s 17 / 16 19 /19
CO
2
at Max/Min (G20) flow rate with separate chimneys % 6,7 / 2,1 7,1 / 2,3
CO
2
at Max/Min (G31) flow rate with separate chimneys % 7,7 /2,6 7,8 /2,7
NOZZLES GAS
Number of nozzles No. 11 13
Nozzle diameter (G20) mm 1,30 1,30
Nozzle diameter (G30/G31) mm 0,80 0,78
Gas consumption at Max/Min flow rate (G20) m
3
/h 2,70 / 0,97 3,17 / 1,14
Gas consumption at Max/Min flow rate (G30) kg/h 2,01 / 0,72 2,36 / 0,85
Gas consumption at Max/Min flow rate (G31) kg/h 1,98 / 0,71 2,33 / 0,84
Gas supply pressure (G20/G30/G31)
mbar 20 / 28-30 / 37
kPa 2 / 2,8-3 / 3,7
TEMPERATURE PRESSURE
Max operating temperature °C 85 85
Heating adjustment range °C 20 ÷ 80 20 ÷ 80
Domestic hot water adjustment range °C 10 ÷ 60 10 ÷ 60
Max operating pressure
bar 3
kPa 300
Water content in boiler l 3,05 3,65
Lower Heat Output (Hi)
G20 Hi.
9.45 kW/m
3
(15°C, 1013 mbar) -
G30 Hi.
12.68 kW/kg (15°C, 1013 mbar) -
G31 Hi.
12.87 kW/kg (15°C, 1013 mbar)