Wolf FGB-35 - Set-Up

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1 Flue pipe
2 Burner
3 Boiler water temperature sensor
4 Heating water heat exchanger
5 Gas fan
6 Mixing valve (venturi insert)
7 Gas valve
8 Inlet pipe
9 Trap
10 Control unit casing
11 Air vent valve
12 Combustion chamber - high limit safety cut-out
13 Expansion vessel
14 Pressure sensor
15 Return temperature sensor
16 Flue gas temperature sensor
17 3-way valve (motor)
18 Heating circuit pump with air vent valve
19 Heating ow
20 Cylinder ow
21 Gas supply pipe
22 Cylinder return
23 Heating return
FGB wall mounted gas condensing boiler
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5. Set-up