Main Parts Of The Boiler - Beretta Novella MAXIMA 129 N RAI Installation Manual

2.2

Main parts of the boiler

1 2
23
24
26 10 25
28
27
1 - Central heating flow
2 - Flue gas hood
3 - Control panel
4 - Top front panel
5 - Flue gas vent
6 - Top panel
7 - Front base
8 - Bottom front panel
9 - Gas supply fitting
10 - Flame inspection window
11 - Boiler drain cock
12 - Flue gas thermostat
13 - Boiler sensor sockets
14 - Ignition electrode
15 - Boiler body
16 - Burner
17 - Nozzle gas pressure measurement
fitting
3
13
22
21
20
19 18 17 16
29 30 31
35 34
18 - Gas supply line
19 - Boiler base profiles
20 - Ionisation flame detection sensor
21 - Three part union
22 - Secondary electric power panel
23 - Top rear side panel
24 - Bottom rear side panel
25 - Central heating return
26 - Front side panel
Gas valve:
27 - Inlet pressure measurement fitting
28 - Solenoid valve EVG1
29 - Min. pressure adjuster screw
30 - Solenoid valve EVG2
31 - Outlet pressure measurement fitting
32 - Max. pressure adjuster screw
33 - Vent valve
34 - Minimum valve EVM
35 - Minimum gas pressure switch
4 5
13
12
14
15 11
32
6
10 9 8 7
33
Fig. 2.1
7