Tonkaflo Pump Start-Up; Pump Priming; Pump Rotation - GE OSMONICS TONKAFLO SS Series Installation, Operation And Maintenance Manual

4.0

TONKAFLO PUMP START-UP

4.1

Pump Priming

THE INLET PIPING AND PUMP MUST BE FILLED WITH LIQUID (i.e., PRIMED) BEFORE
START-UP. If the pump is below the liquid source or connected to a positive pressure
source, the pump may be primed from that source.
If the pump is above the liquid source, fill the pump and supply line with liquid from
an external source.
The pump should be shut off immediately if prime is lost to avoid overheating and
possible damage to the internals of the liquid end.
The pump should not run with a closed discharge for more than one (1) minute as the
liquid can heat up very quickly and exceed the maximum operating temperatures
causing irreversible damage to the wetted internal parts of the liquid end.
WARNING:
In order to adequately protect the Tonkaflo pump from running dry, it is suggested
that controls to protect the pump be used. These controls include: pressure switches,
flow switches, and temperature switches.
4.2

Pump Rotation

When initially connecting to the power source, be certain that the motor wiring and
available line voltage are the same. Connect the wires as shown on the motor wiring
diagram located on the inside of the motor junction box cover or on the nameplate
label.
CAUTION:
A motor starter is required for all three-phase motors.
BEFORE STARTING THREE-PHASE MOTOR
STEPS
1. Prime pump before applying power to avoid damage to pump.
2. Apply power for ONE SECOND to check direction of motor shaft rotation. The
motor shaft should turn in a clockwise direction as viewed from the motor end.
The direction of rotation for three-phase motors may be reversed by
interchanging any two leads.
NEVER RUN PUMP DRY.
If a three-phase motor is wired incorrectly, it will cause the pump
shaft to rotate in the wrong direction. This will result in low pressure
(about 1/4 to 1/2 of normal) and flow (about 1/2 of normal).
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