Burkert 0142 Manuale di istruzioni per l'uso - Pagina 10
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NOTE!
Important information:
▶ Avoid emitting pulses simultaneously to both coil windings.
▶ Do not switch any other consumers (relays, etc.) at the same
time as the terminals.
▶ The coil connection, to which voltage is not applied, must be
galvanically isolated (open).
▶ If two or more valves are switched in parallel, ensure that this
requirement is met by using 2-pole or multi-pole switches.
7
MAINTENANCE, TROUBLESHOOTING
7.1
Safety instructions
WARNING!
Risk of injury from improper maintenance!
▶ Maintenance may be carried out by authorized technicians
only and with the appropriate tools!
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶ Secure system from unintentional activation.
▶ Following maintenance, ensure a controlled restart.
7.2
Malfunctions
If malfunctions occur, check:
→
the device has been installed according to the instructions,
→
the electrical and fluid connections are correct,
→
the device is not damaged,
→
all screws have been tightened,
→
the voltage and pressure have been switched on,
→
the pipelines are clean.