- Turn on 3ph power to pump
- Press the power button on the pumpโs screen (lower right button, fig. 13)
- Override one function on the tunnel controller to check the rotation of the pump
- Following the arrows on the pump, look down into the top of the pump and see which direction the fan is spinning (should be counterclockwise). You will need a flashlight to see the fan
- If clockwise, have a qualified electrician change any two of the feed wires to the pump to change the rotation counterclockwise
- Note: The direction is embossed on the casting of the pump (fig. 14)
- Pump direction looking down from the top should be counterclockwise
- Following the arrows on the pump, look down into the top of the pump and see which direction the fan is spinning (should be counterclockwise). You will need a flashlight to see the fan
- Check system pressure to make sure guage and screen match (min 100 psi – max 200 psi)
- Check for leaks
- Check the system pressure gauge (fig. 15.1) on the main manifold and the pumpโs screen (fig 15.2)
- Override each function in your tunnel controller (one at a time) to ensure that the pump turns on with each function. Both the liquid and air solenoid should open.ย
- Check for leaks at the poly tube connections
- Confirm each solenoid din coil. LED illuminates when energized (fig. 16)
