Boiler Flow Diagram - Ferroli XIGNAL CE Technical Information Installation And Service Instructions

Boiler flow diagram

Main parts
1 Fixing point
5 Room sealed compartment
Instrument panel
6
Gas inlet
7
8 Domestic hot water outlet
9 Domestic hot water inlet
10 Central heating flow
Central heating return
11
D.H.W. drain point
12
14 Safety valve
16 Fan
Combustion chamber
19
Burner unit
20
21 Main injector
22 Burner
26 Combustion chamber insulation
Copper exchanger for C.H. or D.H.W.
27
Flue outlet manifold
29
30 Excess air chamber
31 Air pressure control damper
32 C.H. pump
Heating water circuit
33
34 Heating temp. sensor
35 Air separator
36 Automatic air vent
37 Cold water inlet filter
Domestic hot water circuit
41
D.H.W. temperature sensor
42
Air pressure switch
43
Gas valve
44
Gas valve modulator
47
48 Burner pressure test point
49 Overheat thermostat
Heat exchanger venting point
53
Temperature sensing phial
54
56 Expansion tank
57 Fan air inlet pressure test point
58 Fan air outlet pressure test point
Flue outlet pressure test point
59
65 230V line terminal strip and probe connections
68 Control box with P.C.B.
71 Balance tube
81 Ignition electrode
Flame sensing electrode
82
83 Automatic ignition control panel
84 1. gas valve operator 230V
85 2. gas valve operator 230V
Venturi test point
87
Control heating limit sensor
96
98 Main switch
101 P.C.B.
136 Flowmeter
137 Pressure sensor
140 Touch keyboard
141 Loudspeaker
142 Display P.C.B.
158 Gas inlet pressure test point
9