Installation and operating instruction
Gas burner WG10…/0-D ZM-LN
9 Servicing
83300902 1/2019-02 La
75-112
9.12 Removing and refitting gas butterfly valve
Observe notes on servicing [ch.9.1].
Removing
Remove screws3.
Unscrew flange with double nipple4.
Remove mixing head [ch.9.3].
Remove screws1 and remove gas butterfly valve 2.
Refitting
Refit gas butterfly valve2 in reverse order, secure flange to multifunction as-
sembly whilst ensuring correct seating of the O ring5 on the flange.
Carry out soundness test [ch.7.1.3].