
FALCON II
6
2.03 Boiler water fl ow diagram
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
29
Internal flue exit
32
Central heating pump
34
Central heating flow temperature sensor
36
Automatic air vent valve
Fig. 2
Fig. 3
81
82
22
29
43
187
+
-
R
OVER RIDE
x
x
4
AUTO
P
O
I
P
IN
OUT
MIN
GRUNDFOS
FERROLI
114
34
20
21
90
50
16
28
32
26
19
49
132
5
56
27
91
62
10
8
7
84
85 44
136
14
42
9
11
36
98
63
157
145
0
5
1
2
3
4
6
OUT
I
MIN
AIR
IN
AIR
IN
FLUE
OUT
C.H.
OUT
D.H.W.
OUT
GAS
IN
D.H.W.
IN
C.H.
IN
42
Domestic hot water flow
temperature sensor
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 outlet test point
91*
Air test 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
187
Restrictor
*
For use with flue gas analyser