Wolf FGB-28 - Page 11

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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 DHW outlet temperature sensor
12 Plate heat exchanger
13 Air vent valve
14 Combustion chamber - high limit safety cut-out
15 Expansion vessel
16 Pressure sensor
17 Return temperature sensor
18 Flue gas temperature sensor
19 3-way valve (motor)
20 Heating circuit pump with air vent valve
21 Flow limiter
22 Flow sensor
23 Heating ow
24 DHW connection
25 Gas supply pipe
26 Cold water connection
27 Heating return
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FGB-K wall mounted gas condensing combi boiler
5. Set-up