1.40 MAIN COMPONENTS
Key (Fig. 41):
1
- System expansion vessel
2
- Burner
3
- Ignition/detection electrode
4
- Air intake pipe
5
- Flow probe
6
- Fan
7
- Condensate drain trap
8
- Gas nozzle
9
- Gas valve
10
- System draining valve
11
- Storage tank return flow by-pass
12
- Sample points (air A) - (flue gases F)
13
- Flue probe
14
- Condensation module
15
- Venturi
16
- Return probe
17
- System pressure switch
18
- Air vent valve
19
- Boiler circulating pump
20
- 3 bar safety valve
21
- By-pass
22
- 3-way valve (motorised)
23
- Valve drain fitting signal
24
- System filling valve
41
59