Ferroli F24 Installation, Service And User Instructions Manual page 7

2.04 Central heating adjustment (not normally required)
To adjust boiler heat input (thus also regulating heat output to the central heating water) simply adjust the main
burner via the electronic control board (fi g. 4 and 5 and see paragraph 5.04 page 29).
The diagrams indicate the variation in heat output to the water as burner working pressure is varied.
Adjusting boiler output to the actual requirements of the central heating system will minimise boiler
cycling thus saving fuel, varying the output has virtually no effect on the efficiency and combustion
characteristics of the boiler.
iagram ressures
and ut uts ith atural gas
14
13
12
11
10
9
8
7
6
5
4
3
2
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
kW
kcal/h
8 9 10 11 12 13 14 15 16 17 18 19 20 21
x 1000
Fig. 4
2.0 mesti h t ater aria ilit
The temperature of the domestic hot water can
be varied from 40 to 55
potentiometer.
iagram d mesti h t
hara teristi s
by adjusting the boiler
ater r du ti n
Fig.
iagram ressures and ut uts
ith r
35
30
25
20
15
10
5
9 10 11 12 13 14 15 16 17
kW
kcal/h
8 9 10 11 12 13 14
X 1000
65
60
55
50
45
40
39
Tem erature
0 3 4 5
6
l
ane
18 19 20 21 22 23
15 16 17
d mesti h t ater intake 1 °C
6 7 8 9 10 11 12 13
d mesti h t ater l min
18 19 20
5
Fig.
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
14 15 16
7