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15
ENGLISH
8 TECHNICAL
DATA
DESCRIPTION
UM
CIAO AT 25C
Heating
Rated heat input
kW
25,00
kcal/h
21,500
Nominal heat output (80°/60°)
kW
23,95
kcal/h
20.597
Nominal heat output (50°/30°)
kW
25,50
kcal/h
21.930
Reduced heat input
kW
7,50
kcal/h
6.450
Reduced heat output (80°/60°)
kW
7,06
kcal/h
6.069
Reduced heat output (50°/30°)
kW
7,44
kcal/h
6.398
Nominal Range Rated heat output (Qn)
kW
25,00
kcal/h
21,500
Minimum Range Rated heat output (Qm)
kW
7,50
kcal/h
6.450
DHW
Rated heat input
kW
25,00
kcal/h
21,500
Nominal heat output (*)
kW
25,00
kcal/h
21,500
Reduced heat input
kW
7,50
kcal/h
6.450
Reduced heat output (*)
kW
7,50
kcal/h
6.450
Useful ef
fi
ciency Pn max - Pn min (80°/60°)
%
95,8 - 94,1
Useful ef
fi
ciency Pn max - Pn min (50°/30°)
%
102,0 - 99,2
Useful ef
fi
ciency Pn max 30% (30° return)
%
101,4
Combustion ef
fi
ciency
%
96,2
Overall electric output
W
102
Circulator electric power (1.000 l/h)
W
48
Category
●
Country of destination
II2H3P
●
(+)
Voltage supply
V - Hz
230-50
Protection level
IP
X5D
Losses at the
fl
ue with burner off - burner on
%
0,12 - 3,78
Heating operation
Pressure - Maximum temperature
bar - °C
3 - 90
Minimum pressure for standard operation
bar
0,25 - 0,45
Selection
fi
eld of heating water temperature
°C
30 - 80
Pump: maximum head available
mbar
314
for system capacity
l/h
800
Membrane expansion tank
l
8
Expansion tank pre-loading (heating)
bar
1
DHW operation
Maximum - Minimum pressure
bar
8 - 0,15
Speci
fi
c
fl
ow rate in accordance with EN13203-1
l/min
11,1
Quantity of hot water with
Δ
t 25° C
l/min
14,3
with
Δ
t 30° C
l/min
11,9
with
Δ
t 35° C
l/min
10,2
DHW minimum capacity
l/min
2
Selection
fi
eld of domestic H2O temperature
°C
35 - 60
Flow regulator
l/min
10
Gas pressure
Nominal methane gas pressure (G20)
mbar
20
Nominal liquid gas LPG pressure (G31)
mbar
37
Hydraulic connections
CH input - output
Ø
3/4”
DHW input - output
Ø
1/2”
Gas input
Ø
3/4”
Boiler dimensions
Height
mm
715
Width
mm
405
Depth
mm
250
Boiler weight
kg
31
Output (G20)
Air capacity
Nm
3
/h
35,945
Flue gas capacity
Nm
3
/h
38,453
Mass
fl
ue gas
fl
ow rate (max-min)
g/s
13,350 - 5,798