Disposing Of Motor Pumps; Electrical Connection; Single Phase Electric Motor Connection; Three Phase Electrical Connection - Zenit MAI Serie Manual De Uso

7. DISPOSING OF MOTOR PUMPS

In the event that is not considered economically viable to repair a worn or damaged motor pump, the motor pump and motor must be disposed of
in full compliance with local regulations.
To dispose of a motor pump proceed as follows:
- remove any oil in the chamber and dispose of in a specialised collection centre;
- separate the parts in plastic and rubber and dispose of in a specialised collection centre;
- arrange for the break-up of the metal parts.
Do not dispose of any motor pump component in the environment.

8. ELECTRICAL CONNECTION

8.1 SINGLE PHASE ELECTRIC MOTOR CONNECTION

For single phase motor pumps the motor pump output leads must be connected as follows: BLACK lead to a line connector, BLUE lead to the
other line connector and to a connector of a capacitor of adequate capacity (45 F + circuit breaker 80 F); BROWN lead to the other capacitor
connector.
SINGLE-PHASE electrical connection fig. 3

8.2 THREE PHASE ELECTRICAL CONNECTION

Connect the yellow-green lead to earth and supply the motor pump output leads. If the motor pump has 3 leads they must be connected to a three
phase line with voltage and frequency equal to that indicated on the data plate, or to a control panel with devices to reduce the initial current. If the
motor pump has 6 leads they must be connected to a control panel with a Y/delta switching device. If the connection is made directly to the delta
the supply voltage is the lower of those indicated on the data plate; if the connection is made to the Y the voltage is the higher of those indicated.
The supply leads are marked as follows:
- 3 leads U – V – W
- 6 leads U1 – U2 – V1 – V2 – W1 – W2
THREE-PHASE electrical connection fig. 4 - 5 - 6

8.3 THERMAL PROBES

Thermal protection, incorporated in both single phase and three phase motors, is connected to the motor pump output leads labelled T. Thermal
protection must be connected to the appropriate terminal on the control panel and manually reset with a corresponding switch.

8.4 CONDUCTIVITY PROBES

Where present the conductivity probe is inserted in the oil chamber and connected to the motor pump output lead labelled S. The probe must be
connected to the corresponding terminal on the control panel.
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