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1.3 TECHNICAL FEATURES
* The gas consumptions refer to the calorific value at standard conditions at 15°C - 1013 mbar.
25 OF C 30 OF C 25 BF TS 30 BF TS
Heat output
Nominal kW 23.3 28.6 25.6 30.4
kcal/h 20,000 24,600 22,000 26,100
Minimum kW 9.3 11.7 9.1 11.7
kcal/h 8,000 10,100 7,800 10,100
Heat input
Nominal kW 25.8 31.6 27.5 32.5
Minimum kW 10.8 13.5 10.8 13.5
Termal efficiency (CEE 92/42 directive)
★★ ★★ ★★★ ★★★
Class NOx 333 3
Water content l 2.4 3.8 3.4 4.8
Adsorbed power consumption W 105 110 160 190
Electrical protection grade
IP X4D X4D X4D X4D
Maximum water head bar 3 3 3 3
Maximum temperature °C 95 95 95 95
Expansion vessel
Water content l 7 10 7 10
Preloading pressure bar 1 1 1 1
CH. setting range °C 40÷80 40÷80 40÷80 40÷80
D.H.W. setting range °C 40÷60 40÷60 40÷60 40÷60
Smokes temperature °C 117 116 152 130
Smokes flow gr/s 21.4 24.2 16.5 19.3
Losses after shutdown to 50°C
W/ h 181 2 06 112 118
Category II2H3+ II2H3+ II2H3+ II2H3+
Type B11BS B11BS
B22-52/C12 -32-42-52-82 B22-52/C12 -32-42-52-82
D.H.W. production
D.H.W. flow rate (EN 625) l/min 10.5 13.2 11.5 13.8
Continuous D.H.W. flow rate ∆t 30°C l/min 11.1 13.6 12.2 14.5
Minimum D.H.W. flow rate l/min 2 2 2 2
D.H.W minimum pressure bar 0.5 0.5 0.5 0.5
D.H.W maximum pressure bar 7 7 7 7
Weight kg 35 41 43 49
Main burner nozzle
Quantity n° 13 15 13 15
Methane ø mm 1.30 1.30 1.30 1.30
G30 - G31 ø mm 0.75 0.77 0.77 0.78
Gas consumption *
Methane m
3
st/h 2.72 3.34 2.91 3.44
Butane (G30) kg/h 2.02 2.48 2.17 2.56
Propane (G31) kg/h 1.99 2.40 2.14 2.52
Burner gas pressure
Methane mbar 1.9÷9,7 2,1÷10.5 2.1÷12 2.4÷12.5
Butane (G30) mbar 5÷27,5 5.2÷27.5 4.7÷28.2 4.9÷28.1
Propane (G31) mbar 5÷35,5 5,2÷35.5 4.7÷36.2 4.9÷36.1
Gas supply pressure
Methane mbar 20 20 20 20
Butane (G30)/Propane (G31) mbar 28-30/37 28-30/37 28-30/37 28-30/37
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