Caleffi 6000 - Manual (Page 45)

Manual opening procedure for flanged versions
To perform manual opening, in the case of a fault or electric supply failure, proceed as follows:
1) Unscrew the threaded locking pin using a 19 mm fixed wrench.
2) Screw the specific lever (supplied) into the locking pin hole.
3) Lock the lever in position using the specific locking nut with a
22 mm fixed wrench.
4) Pull the knob outwards.
5) Rotate the valve to the desired position.
During these operations take precautions to avoid danger of
scalding for users.
6) When the operations are complete, realign so that the knob
engages and screw the locking pin back into its threaded hole.
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