Starting; Stopping; Precautions; Maintenance - DAB KVC series Installations- Und Wartungsanleitungen

8.6 Starting

Before starting the pump and the
suction pipe have to be properly
primed pump and pipe have to be
fully filled with clean water.
To obtain priming, proceed as follows:
KVC – KVCX (Fig.6) :
−
After having removed the cap, fill the pump slowly
through the filling hole so as to discharge any air
pockets present inside.
Fig. 6 KVC – KVCX
drainage cap

8.7 Stopping

Close the interception device on the delivery pipe. If
there is a check device on the delivery pipe, the
interception valve on the delivery side may ramain
open as long as there is back.
For a long period of inactivity, close the interception
device on the intake pipe and, if supplied, all the
auxiliary control connections.

8.8 Precautions

−
The electropump should not be started an
excessive number of times in one hour.
maximum admissible value is as follows:
Type of pump
KVC - KVCX
filling cap
Maximum number of
starts per hours
30
ENGLISH
When the pump remains inactive for a long time at
temperatures of less than 0°C, the pump body must be
completely emptied through the drain cap.
Check that the leakage of liquid does
not
especially in plants that use hot water.
−
It is recommended to empty the pump when it is not
running for a long time at normal temperature.
−
The drain plug shall be opened until the pump will
be utilized again.
−
When restarting after long periods of inactivity it is
necessary to repeat the operations described above
in the paragraphs WARNINGS and STARTING UP.

9. MAINTENANCE

−
In normal operating conditions the electropump
does not require any kind of maintenance.
−
It is recommended to check time by time current
absorption, pressure head at closed valve and
maximum flow.
The electropump can only be dismantled by
specialised, skilled personnel in possession of the
qualifications required by the specific regulations.
−
In any case all repair and maintenance jobs must be
carried out only after having disconnected the
pump from the power mains.
If the liquid has to be drained out
maintenance, ensure that the liquid
coming out cannot harm persons or
things, especially in using hot water.
The legal requirements on the disposal
of any harmful fluids must also be
complied with.

9.1 Modifications and spare parts

Any modification not authorised beforehand relieves the
manufacturer of all responsibility. All the spare parts
must be authentic and all the accessories must be
authorised by the manufacturer.
The
19
damage persons
Carry out maintenance based on the
type of bearing indicated on the
technical data plate.
or things,