IBC SL SERIES - Replacing the Fan

Gas valve outlet connector
Location of gas valve O-ring.
Bolts
Low fire offset pressure adjustment
Outlet pressure port (not used)
Inlet gas pressure port
High fire (gas:air) adjustment
Venturi mixing device
Combustion fan
Aluminum gas block (gas inlet)
Figure 42 Gas valve and fan components - SL 40-399 G3
7.3.1 Replacing the fan
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Section: Service and maintenance