58
EN
1.5 Technical features
DESCRIPTION
Brava Slim HE
25 30 35 40
CERTIFICATIONS
Country of intended installation IT – ES – PT – GR – SI
Fuel G20 / G31
PIN number 1312CO5936
Category II2H3P
Type B23P - B53P - C13 - C33 - C43 - C53 - C63 - C83
Class NO
x
5 (< 70 mg/kWh)
HEATING PERFORMANCE
HEAT INPUT
Nominal kW 20 24 30 35
Minimum kW 4,0 4,8 6 7
HEAT OUTPUT
Nominal (80-60°C) kW 19,7 23,6 29,5 34,5
Nominal (50-30°C) kW 21,4 25,7 32,2 37,5
Minimum G20 (80-60°C) kW 3,9 4,7 5,9 6,9
Minimum G20 (50-30°C) kW 4,3 5,1 6,5 7,5
Minimum G31 (80-60°C) kW 3,9 4,7 5,9 6,9
Minimum G31 (50-30°C) kW 4,3 5,1 6,5 7,5
EFFICIENCY
Max useful efficiency (80-60°C) % 98,5 98,3 98,3 98,6
Min useful efficiency (80-60°C) % 97,5 97,9 98,3 98,6
Max useful efficiency (50-30°C) % 107 107,1 107,3 107,1
Min useful efficiency (50-30°C) % 107,5 106,25 108,3 107,1
Useful efficiency at 30% of load (40-30°C) % 107,0 107,0 107,0 107,0
Thermal efficiency (EEC 92/42)
Losses after shutdown at 50°C W 84 88 88 92
DOMESTIC HOT WATER PERFORMANCE
Nominal heat input kW 24 28 35 40
Minimum heat input kW 4 4,8 6 7
D.H.W. flow rate ∆t 30°C l/min 11,2 12,9 16,5 19,4
Continuous D.H.W. flow rate (∆t 25°C / ∆t 35°C) l/min 13,6 / 9,7 16,1 / 11,5 20 / 14,3 22,9 / 16,4
Minimum D.H.W. flow rate l/min 2,2 2,2 2,2 2,2
Max / Min Pressure bar 7 / 0,5 7 / 0,5 7 / 0,5 7 / 0,7
kpa 700 / 50 700 / 50 700 / 50 700 / 70
ELECTRICAL SPECIFICATIONS
Power supply voltage V 230
Frequency Hz 50
Absorbed electrical power W 105 114 135 135
Electrical protection degree IP X5D
COMBUSTION DATA
Smoke temperature at Max/Min flow (80-60°C) °C 82 / 66 89 / 71 77 / 67 75 / 62
Smoke temperature at Max/Min flow (50-30°C) °C 59 / 45 71 / 51 58 / 49 54 / 39
Maximum smoke flow Min/Max g/s 11,2 / 1,9 13,1 / 2,2 16,3 / 2,8 18,6 / 3,3
CO
2
at Max/Min flow rate (G20) % 9,0 / 9,0 9,0 / 9,0 9,0 / 9,0 9,0 / 9,0
CO
2
at Max/Min flow rate (G31) % 10,0 /10,0 10,0 /10,0 10,0 / 10,0 10,0 / 10,0
NOZZLES -GAS
Number of nozzles No. 1 1 1 1
Nozzle diameter (G20-G31) mm 5,3 5,3 5,3 5,3
Gas consumption at Max/Min flow rate (G20) m3/h 2,53 / 0,42 2,96 / 0,50 3,70 / 0,63 4,23 / 0,74
Gas consumption at Max/Min flow rate (G31) Kg/h 1,86 / 0,31 2,17 / 0,37 2,71 / 0,46 3,10 / 0,74
Gas supply pressure (G20/G31) mbar 20 / 37 20 / 37 20 / 37 20 / 37
kpa 2 / 3,7 2 / 3,7 2 / 3,7 2 / 3,7
TEMPERATURE -PRESSURE
Max operating temperature °C 85
Heating adjustment range °C 20÷80
Domestic hot water adjustment range °C 10÷60
Max operating pressure bar 3
kpa 300
Water content in boiler l 4,65 4,75 4,95 5,60
Lower Heat Output (Hi)
G20 Hi.
9.45 kW/m
3
(15°C, 1013 mbar) -
G31 Hi.
12.87 kW/kg (15°C, 1013 mbar)