Weishaupt WG20 1-C Z-LN Series - Gas Butterfly Valve Removal;Refitting

Installation and operating instruction
Gas burner WG20…/1-C Z-LN
9 Servicing
83054602 1/2020-01 La
62-96
9.11 Removing and refitting gas butterfly valve
Observe notes on servicing [ch.9.1].
Removing
Remove screws3.
Unscrew flange with double nipple4.
Remove mixing head [ch.9.3].
Remove drive rod 6.
Remove screws1 and remove gas butterfly valve 2.
Refitting
Refit gas butterfly valve2 in reverse order and:
ensure correct alignment of drive rod6 with gas butterfly valve,
secure flange to multifunction assembly whilst ensuring correct seating of
O ring5 on the flange.
2
4
1
3
5
6
Carry out soundness test [ch.7.1.3].