58
4.3 TECHNICAL DATA TABLE.
- The data relating to domestic hot water performance refer to
a dynamic inlet pressure of 2 bar and an inlet temperature of
15°C; the values are measured immediately at the boiler outlet,
considering that to obtain the data declared, mixing with cold
water is required.
- (**) Efficiencies refer to the net calorific value.
- (***) When the boiler is connected to an external storage tank
unit.
- The weighted NO
x
value refer to the net calorific value.
Nominal heat input
kW (kcal/h)
24.2 (20777)
Minimum heat input
kW (kcal/h)
5.7 (4866)
Nominal heat output (useful)
kW (kcal/h)
23.7 (20382)
Minimum heat output (useful)
kW (kcal/h)
5.5 (4730)
(**) Effective thermal efficiency 80/60 Nom./Min.
%
98.1 / 97.2
(**) Effective thermal efficiency 50/30 Nom./Min.
%
106.0 / 106.5
(**) Effective thermal efficiency 40/30 Nom./Min.
%
107.2 / 107.8
Casing losses with burner On/Off (80-60°C)
%
0.55 / 0.20
Heat loss at flue with burner On/Off (80-60°C)
%
0.01 / 1.70
Central heating circuit max. operating pressure
bar (MPa)
3.0 (0.3)
Maximum heating temperature
°C
90
Adjustable central heating temperature (max operation field)
°C
20 - 85
System expansion vessel total volume
l
5.0
Expansion vessel factory-set pressure
bar (MPa)
1.0 (0.1)
Appliance water content
l
3.0
Head available with 1000 l/h flow rate
kPa (m H
2
O)
29.6 (3.0)
(***)
Hot water production useful heat output
kW (kcal/h)
23.7 (20382)
(***)
Domestic hot water adjustable temperature
°C
30 - 60
Weight of full boiler
kg
39.0
Weight of empty boiler
kg
36.0
Electrical connection
V/Hz
230 / 50
Nominal power absorption
A
0,56
Installed electric power
W
76
Pump absorbed power
W
40
Fan power absorbed power
W
22
Pump system EEI value
-
≤ 0.20 - Part. 3
Equipment electrical system protection
-
IPX5D
Max temperature of combustion products
°C
75
Ambient operating temperature range
°C
-5 ÷ +50
Ambient operating temperature range with optional antifreeze kit
°C
-15 ÷ +50
Max. flue overheating temperature
°C
120
NO
X
class
-
6
Weighted NO
X
mg/kWh
38
Weighted CO
mg/kWh
39
Type of appliance
C13 / C13x / C33 / C33x / C43 / C43x / C53 / C63 / C83 / C93
/ C93x / B23p / B33
Category
II 2H3P
