Buderus GB142-24 User Instructions page 16

Starting up and shutting down the boiler
Open the gas shut-off valve (fig. 3, pos. 1).
Lightly push on the gas shut-off valve and turn it to the left
(counterclockwise). In "open" position the gas shut-off
valve is parallel to the gas pipe.
Open the boiler manifold shut-off valves (fig. 3, pos. 2).
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1
Fig. 3 Opening the gas shut-off valve and the
boiler manifold shut-off valves
pos. 1: gas shut-off valve
pos. 2: boiler manifold shut-off valves
2
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