EN
USE AND MAINTENANCE MANUAL
CHAPTER 4
ELECTRICAL CONNECTION
• Ensure that the rated voltage and
frequency correspond to those
of the specifications of the mains
power available
• The electrical connection must
be made according to current
local standards
• Before any intervention on the
pump, disconnect the electrical
mains. Ensure that the electrical
power supply cannot be restored
inadvertently
SINGLE PHASE MOTORS
The single phase motors are protected against temperature and current overload by means of thermal cutout
devices in the winding. The motor protection is reset automatically on elapse of the time required for the electric
motor to cool down. See "quick troubleshooting guide"
THREE PHASE MOTORS
In the case of three phase motors, the user is responsible for installing protection.
The electrical protection must be suitably sized to ensure protection against overloads and short circuits.
ELECTRICAL CONNECTION
Electrical connections should be made according to the diagram provided on the inside of the terminal board cover
(see Figure 4)
CHAPTER 5
OPERATION
PUMP PRIMING
DANGER
The pump must only be started up after it is filled with liquid.
DANGER
If the pump has not been used for a prolonged period, the filling operation should be repeated before
starting up.
18
• The electrical cables must be
protected, in particular from
high temperatures, vibrations
and impact, which could cause
mechanical or chemical damage
• The electrical power line must
be fitted with a short circuit
protection device, and a residual
current device RCD with high
sensitivity (30mA), protected by
means of a slow-acting fuse or a
magnetothermic switch
• The electric power line must
be fitted with an external main
switch with a contact opening
gap compliant with current local
standards.