ENGLISH
12
TECHNICAL DATA
DESCRIPTION
CIAO AT
25 C.S.I.
29 C.S.I.
Category
II2H3P
II2H3P
Country of destination
(+)
Type of appliance
B22P, B52P; C12,C12x; C22; C32,C32x; C42,C42x; C52,C52x; C82,C82x; C92,C92x
Heating
Nominal heat input (Hi)
kW
25,00
29,00
kcal/h
21.500
24.940
Nominal heat output (80-60°C)
kW
24,35
28,30
kcal/h
20.941
24.341
Nominal heat output (50-30°C)
kW
25,90
29,93
kcal/h
22.274
25.738
Reduced heat input (Hi)
kW
15,00
15,00
kcal/h
12.900
12.900
Reduced heat output (80-60°C)
kW
14,25
14,28
kcal/h
12.255
12.281
Reduced heat output (50-30°C)
kW
14,85
14,75
kcal/h
12.771
12.681
Domestic hot water
Nominal heat input (Hi)
kW
25,00
29,00
kcal/h
21.500
24.940
Nominal heat output (*)
kW
25,00
29,00
kcal/h
21.500
24.940
Reduced heat input (Hi)
kW
9,50
9,90
kcal/h
8.170
8.514
Reduced heat output (*)
kW
9,50
9,90
kcal/h
8.170
8.514
Useful efficiency Pn max - Pn min (80°-60°)
%
97,4-95,0
97,6-95,2
Useful efficiency Pn max - Pn min (50°-30°)
%
103,6-99,0
103,2-98,3
Useful efficiency 30% (47° return)
%
95,2
95,8
Useful efficiency 30% (30° return)
%
100,1
99,5
Combustion efficiency
%
97,5
97,7
Electric power
W
129
114
Circulator electric power (1.000 l/h)
W
39
39
Power supply voltage
V - Hz
230-50
230-50
Electrical protection
IP
X5D
X5D
Pressure drops on flue with burner on
%
2,47
2,29
Pressure drops on flue with burner off
%
0,09
0,08
Residual head of concentric pipes 0.85m ø 60-100
Pa
25
20
Residual head of separate pipes 0.5m ø 80
Pa
108
100
Residual head of boiler without pipes
Pa
140
130
Heating operation
Maximum pressure
bar
3
3
Maximum temperature
°C
90
90
Minimum pressure for standard operation
bar
0,25-0,45
0,25-0,45
Selection field of heating water temperature
°C
40-80
40-80
Pump: maximum head available
mbar
266
266
for system capacity
l/h
1.000
1.000
Membrane expansion tank
l
8
9
Expansion tank pre-charge
bar
1
1
DHW operation
Maximum pressure
bar
6
6
Minimum pressure
bar
0,15
0,15
Quantity of hot water with ∆t 25°C
l/min
14,3
16,6
with ∆t 30°C
l/min
11,9
13,9
with ∆t 35°C
l/min
10,2
11,9
DHW minimum capacity
l/min
2
2
Selection field of domestic hot water temperature
°C
37-60
37-60
Flow regulator
l/min
10
12
NOx class
2
2
Gas pressure
Methane gas nominal pressure (G20)
mbar
20
20
LPG liquid gas nominal pressure (G31)
mbar
37
37
Hydraulic connections
Heating input-output
Ø
3/4”
3/4”
DHW input-output
Ø
1/2”
1/2”
Gas input
Ø
3/4”
3/4”
Boiler dimensions
Height
mm
780
780
Width
mm
400
450
Depth of housing
mm
332
332
Boiler weight
kg
39
42
Flow rate
CH
DHW
CH
DHW
Air capacity
G20
Nm
3
/h
39,660
39,660
44,172
44,172
G31
40,208
40,208
43,393
43,393
Flue gas capacity
G20
Nm
3
/h
42,168
42,168
47,081
47,081
G31
42,147
42,147
45,643
45,643
Содержание CIAO AT 25 C.S.I.
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