GE SS1000, SS1800, SS500 manual 3.6Motor Wiring 3.6.1Single-PhaseMotors

3.6Motor Wiring

3.6.1Single-Phase Motors

When initially connecting to the power source, be certain that the motor volt- age connections and available line voltage are the same. Connect electrical wires as shown on the motor wiring diagram located on the motor name- plate, electrical junction box, junction box cover, or wiring tag. Be sure your pump is electrically grounded at the junction box on the motor.

3.6.2Three-Phase Motors

The wiring diagram located on the motor nameplate, electrical junction box, junction box cover, or wiring tag should be used to correctly wire the motor according to the line voltage available. Be sure your pump is electrically grounded at the junction box on the motor.

CAUTION: The 500X, 1000X and 1800X motor adapter pumps have a threaded motor shaft. Reverse operation can damage the motor shaft, pump shaft, or centrifugal stages.

Before Starting Three-Phase Motors:

STEPS

1.Prime pump before applying power to avoid damage to the pump.

2.Apply power for ONE SECOND MAXIMUM to check the direction of motor shaft rotation. The motor shaft should turn in a clockwise direc- tion as viewed from the motor end. The direction of rotation for three- phase motors may be reversed by interchanging any two (2) leads (Figure 3.3, Changing Motor Rotation).

Three-phase motors can run in either direction, depending on how they are connected to the power supply. When the three cable leads are first connected to the power supply, there is a 50% chance that the motor will run in the proper direction. To make sure the motor is running in the proper direction, carefully follow the procedure below.

STEPS

A.Start the pump and note the pressure and flow rate developed at the pump discharge.

B.Stop the pump and interchange any of the two leads.

C.Start the pump again and recheck the flow rate and pressure.

9