FL D LN C
25
EN
cod. 3541P831 - Rev. 00 - 02/2021
5.2 General view and main components
fig. 20- General view - FL D LN C24
fig. 21- General view - FL D LN C30
5.3 Hydraulic circuit
fig. 22- Heating circuit
5.4 Technical data table
44
32
95
136
137
27
81
114
278
194
42
22
126
78
56
14
36
74
44
32
95
136
137
27
81
114
278
194
42
22
126
78
56
14
36
74
Data
Unit
FL D LN C24
FL D LN C30
Max. heating capacity
kW
25.0
33.0
(Qn)
Min. heating capacity
kW
8.3
12.6
(Qn)
Max. Heat Output in heating
kW
22.8
30.0
(Pn)
Min. Heat Output in heating
kW
7.3
11.1
(P)
Max. heating capacity in DHW
kW
25.0
33.0
(Qnw)
Min. heating capacity in DHW
kW
8.3
13.5
(Qnw)
Efficiency Pmax (80-60°C)
%
91.2
91.0
Efficiency 30%
%
89.8
89.8
NOx emissions class
-
6 (<56 mg/kWh)
(NOx)
Burner nozzles G20
no. x Ø
24 x 0.85
32 x 0.85
Gas supply pressure G20
mbar
20.0
20.0
Max. gas pressure at burner (G20)
mbar
15.0
15.0
Min. gas pressure at burner (G20)
mbar
2.0
2.0
Max. gas flow G20
m
3
/h
2.65
3.49
Min. gas flow G20
m
3
/h
0.88
1.33
Burner nozzles G31
no. x Ø
24 x 0.5
32 x 0.5
Gas supply pressure G31
mbar
37
37
Max. gas pressure at burner (G31)
mbar
35.5
35.5
Min. gas pressure at burner (G31)
mbar
5.0
5.0
Max. gas flow G31
kg/h
1.94
2.56
Min. gas flow G31
kg/h
0.64
0.98
Max. working pressure in heating
bar
3
3
(PMS)
Min. working pressure in heating
bar
0.8
0.8
Max. heating temperature
°C
90
90
(tmax)
Heating water content
liters
0.8
1.2
Heating expansion vessel capacity
liters
8
10
Heating expansion vessel precharge pressure
bar
1
1
Max. working pressure in DHW
bar
9
9
(PMW)
Min. working pressure in DHW
bar
0.3
0.3
DHW flow rate Dt 25°C
l/min
13.1
17.2
DHW flow rate Dt 30°C
l/min
10.9
14.3
(D)
Protection rating
IP
IPX4D
Power supply voltage
V/Hz
230V/50Hz
Electrical power input
W
48
52
(W)
Electrical power input in DHW
W
48
52
Empty weight
kg
26
29
Type of unit
B
11BS
27
278
241
11
10
8
9
95
32
56
36
194
42
14
136
74
114
37
22
126
78
