Operation Manual

GB
13
3.2.2 POSITIVE SUCTION HEAD
For positive suction head filling of a machine, proceed as follows:
• Open the gate on the suction tubing
• Close the gate on the delivery tubing
• Open and remove the priming plug
• Pour the liquid into the machine through t he priming plug hole until the liquid starts overflowing
• Close the priming plug
• Start the machine
• Open the gate on the delivery tubing.
3.2 ELECTRICAL CONNECTIONS
WARNING
Verify that the voltage and frequenc y of the electropump
shown on the nameplate correspond to those available on
the mains.
DANGER
Electric shock risk
The installer must make sure that the electric system is
grounded in accordance with the law in force.
DANGER
Electric shock risk
Make sure that the electric syst em has a high-sensitivity
circuit breaker D =30 mA (DIN VDE 0100T739).
Single-phase motors have a permanently inserted condens er and a thermal protection fitted on the
motor winding.
Customers will be responsible for protections of three-phase motors. Elec tric connections should
be performed using cables H07RN-F (for external c onnections) or H05RN-F or H07RN-F (for internal
connections).
CHAPTER 4 – STARTING THE UNIT
WARNING
Use the electropump for the applic ations listed on the
nameplate.
WARNING Do not operate the electropump without uids.
WARNING
Do not operate the electropump when the interception
valve on the delivery side is completely closet.
Before starting the electropump fill the electropump body as indicated at item 3.2 “Priming”, check
that it rotates clockwise when looking at the electropump fr om 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-de scribed operations, if the
electropump is not used for long intervals of time.