38
INS
T
ALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.23 TECHNICAL DATA.
- The flue temperature values refer to an air inlet
temperature of 15°C and flow temperature of
50°C.
- The maximum sound level emitted during
boiler operation is
<
55dBA. The sound level
value is referred to semianechoic chamber tests
with the boiler operating at max. heat output,
with extension of the flue gas exhaust system
according to product standards.
- * When the boiler is connected to an external
storage tank unit.
Nominal heat input
kW (kcal/h)
21,3 (18308)
Minimum heat input
kW (kcal/h)
3,1 (2630)
Nominal heat output (useful)
kW (kcal/h)
20,5 (17630)
Minimum heat output (useful)
kW (kcal/h)
3,0 (2580)
Efficiency 80/60 Nom./Min.
%
96,3 / 98,1
Efficiency 50/30 Nom./Min.
%
101,2 / 108,6
Efficiency 40/30 Nom./Min.
%
104,6 / 109,1
Casing losses with burner On/Off (80-60°C)
%
0,54 / 0,60
Heat loss at flue with burner On/Off (80-60°C)
%
0,01 / 3,1
Central heating circuit max. operating pressure
bar
3
Maximum heating temperature
°C
90
Adjustable heating temperature (max operation field)
°C
20 - 85
System expansion vessel total volume
l
5,8
Expansion vessel factory-set pressure
bar
1,0
Appliance water content
l
1,9
Head available with 1000 l/h flow rate
kPa (m H
2
O)
29,4 (3,0)
* Hot water production useful heat output
kW (kcal/h)
21,3 (18308)
* Domestic hot water adjustable temperature
°C
10 - 60
* Flow rate capacity in continuous duty (
∆
T 30°C)
l/min
12,2
Weight of full boiler
kg
33,9
Weight of empty boiler
kg
32,0
Electrical connection
V/Hz
230 / 50
Nominal power absorption
A
0,53
Installed electric power
W
115
Pump absorbed power
W
85
Fan power absorbed power
W
22
Equipment electrical system protection
-
IPX5D
Temperature of combustion products
°C
75
NO
X
class
-
5
Weighted NO
X
mg/kWh
28,0
Weighted CO
mg/kWh
20,4
Type of appliance
C13 / C33 / C43 / C53 / C63 / C83 / B23 / B33
Category
II 2H3/P