Ferroli F24
6
2.03 Boiler water fl ow diagram
OUT
IN
MIN
AIR
IN
AIR
IN
FLUE
OUT
C.H.
OUT
D.H.W.
OUT
GAS
IN
D.H.W.
IN
C.H.
IN
Fig. 3
2.02 Boiler main components
Key
5
Room sealed compartment
7
Gas inlet
8
Domestic hot water outlet
9
Domestic hot water inlet
10
Central heating flow outlet
11
Central heating return inlet
14
Safety
valve
16
Fan
19
Combustion chamber
20
Burner
assembly
21
Main injector
22
Burner
26
Combustion chamber insulation
27
Copper heat exchanger for central
heating and
domestic hot water
28
Flue collector from heat exchanger
32
Central heating pump
34
Central heating flow temperature sensor
36
Automatic air vent valve
42
Domestic hot water flow
temperature
sensor
Fig. 2
43
16
27
50
19
49
28
5
20
21
26
132
90
91
81
82
22
56
IN
OUT
MIN
RESET
OFF
ON
0
5
1
2
3
4
6
bar
98
63
157
145
°
C
°
C
62
10
8
7
84
85 44
136
32
36
114
34
14
42
9
11
43
Air pressure switch
44
Gas
valve
49
Safety overheat thermostat
50
Central heating flow limit thermostat
56
Expansion
vessel
62
Time clock
63
Central heating temperature adjustment
81
Ignition electrode
82
Sensor
electrode
84
Primary gas valve solenoid
85
Secondary gas valve solenoid
90*
Flue sampling point
91*
Air sampling point
98
On/Off/Reset switch
114
Low water pressure cut off switch
132
Flue gas deflector
136
Flow meter
145
Central heating pressure gauge
157
Domestic hot water temperature adjustment
*
For use with flue gas analysis equipment
