Electrical Connections; Connect The Motor - Grundfos DMX Series Installation And Operating Instructions Manual

4.5 Electrical Connections

4.5.1 Connect the motor

20
Connect suction line to suction valve (A).
• Install the suction line in the solution tank such that the foot valve
remains approx. 10 cm above the bottom of the tank.
Connect pressure line to pressure valve (B).
IMPORTANT:
To protect the pump from excessively high pressures:
fit an appropriate overflow valve in the pressure line.
Make sure that the valves are seated correctly
– position of valve disk (C)!
WARNING
!
NOTE
Connect the motor according to the terminal connection diagram (stamped
in the clamp box).
CAUTION
Prior to the mains connection check if the voltage
indicated on the type plate corresponds with the local
voltage!
Switch off mains before connecting!
No changes at the mains cable and the mains plug may
be done!
The pump is being switched by switching the mains
voltage.
Do not switch on the mains until the pump should be
started.
Observe the sense of rotation!
A motor protector, adjusted to nominal motor current,
must be installed by the customer.
For use with a frequency converter the jumpers in the
clamp box have to be set according to the converter
voltage.
In the state of delivery, the jumpers of 3-phase motors
are set for star connection.
DMX model 227
15.720023-V3.0