SATK40 & Procyl
®
11
Replacing the valve obturator
•
Disconnect the valve actuator (see previous paragraph).
•
Extract the obturator, unscrewing the locking nut (F).
•
Replace the obturator and screw on the locking nut (F),
then insert the actuator.
•
Insert the fixing clip, respecting the correct direction
•
Reconnect the connector.
Replacing the valve actuator
•
Disconnect the actuator cable, lightly pressing the tab on
the connector and extracting it (see page 16).
•
Extract the fixing clip (D) and then the actuator.
•
Position the new actuator (E).
•
Insert the fixing clip, respecting the correct direction.
•
Reconnect the connector.
Maintenance
Temperature probe replacement
•
Disconnect the probe cable, lightly folding the tab (C) and
extracting the connector (see page 16).
•
Unscrew the probe.
•
Fit the new probe.
•
Reconnect the connector respecting the only possible way
it can be inserted.
Expansion vessel pre-charge check
For the system to work properly, the expansion vessel
pre-charge value must be checked regularly (at least once
every six months) using the following method:
•
Close the shut-off valves.
•
Drain the HIU.
•
Check the pre-charge value using a pressure gauge.
•
Eventually restore the value indicated on the technical
specification.
General
When carrying out maintenance on the electrical system, for
the connections follow the diagram on page 12.
After concluding maintenance, refill the system and check the
operations described in the chapter “Commissioning” and
re-fit the cover.
For information regarding spare parts or other technical
information, please contact Altecnic.
Only genuine Altecnic re-placement components should be
used.
C
F
D
E
