7
ELECTRICAL CONNECTIONS
CHAPTER 4
The installer must make sure that the electric system is grounded in accordance with the law in force.
Make sure that the electric system has a high-sensitivity circuit breaker ∆=30 mA (DIN VDE 0100T739).
Verify that the voltage and frequency of the electropump shown on the nameplate correspond to those
available on the mains.
DANGER - ELECTRIC SHOCK RISK
DANGER - ELECTRIC SHOCK RISK
WARNING
Single-phase motors have a permanently inserted condenser and a thermal protection fitted on the motor winding. Customers
will be responsible for protections of three-phase motors. Electric connections should be performed using cables H07RN-F (for
external connections) or H05RN-F or H07RN-F (for internal connections). For connections, refer to Fig. 2 (single phase motors) or
3 (three-phase motors).
GB
Use the electropump for the applications listed on the nameplate.
Do not operate the electropump without fluids.
Do not operate the electropump when the interception valve on the delivery side is completely closed.
WARNING
WARNING
WARNING
STARTING THE UNIT (SEE PICTURE 1 PAGE 73)
CHAPTER 5
Before starting the electropump fill the suction pipe (2) and the electropump body (8) with water by using the filling cap (9),
making sure that there are no leaks, close the cap and start the electropump. Check that it rotates clockwise when looking at the
electropump from the side of the motor fan. On the three phase electropumps it is possible to invert the rotation by changing the
order of two phases. It is advisable to empty the electropump and repeat the above-described operations, if the electropump is not
used for long intervals of time.
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