1.36 MAIN COMPONENTS
Key (Fig. 51):
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
- Pressure signal vent fitting
17
- Return probe
18
- System pressure switch
19
- Air vent valve
20
- Boiler circulating pump
21
- 3 bar safety valve
22
- By-pass
23
- 3-way valve (motorised)
24
- Valve drain fitting signal
25
- System filling valve
51
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