Hard Reset; Stopping The Equipment And Depressurising - Parker 20H Guide D'utilisation

4.4 Hard Reset

If a critical error occurs an error lock menu will be displayed and the generator will need to be hard reset. If an overpressure, H
blocked error occurs, the generator will need to be hard reset once the problem has been resolved. This will also be the case if the same error
is reset 3 times consecutively.
Before a hard reset is performed the initial fault must be rectified; refer to "Error Messages" on page 21 for guidance. When the faults are
rectified, switch the generator off at the mains switch.
Press and hold . At the same time reapply the power to the generator. When the generator has powered up press
generator will reset all errors then continue with the normal start up procedure.

4.5 Stopping the equipment and depressurising

Ensure that the generator is fully depressurised prior to shipment or servicing.
1 Ensure that the application instrumentation no longer requires hydrogen.
2 Switch the generator off at the mains power switch and disconnect it from the electrical supply.
3 Slowly disconnect the Hydrogen outlet connection pipe from the side of the generator allowing the system to depressurise.
.
Hydrogen gas will escape under pressure when the piping is disconnected.
4 The generator is now shut down.
5 If the generator is to be transported drain the water from the generator as described in section 6. Refit the hydrogen outlet port cover and
the three transit plugs to the O
16
vent, excess H vent and the water bottle vent.
2 2
or O vent
2 2
again. The