INSTALLATION AND SETUP
Installation Process
Shallow Well Surface Jet Pump Application
The above drawing illustrates how a typical surface mounted jet pump system should be arranged
for a constant pressure application.
1. Well
2. Check Valve
3. Ball Valve
4. Pressure Relief Valve: Pressure relief valve must be able to pass full pump flow at 100 PSI.
Risk of bodily injury or property damage.
•
Pumps can develop very high pressure in some situations. Always install a pressure relief
valve able to pass full pump flow at 100 psi.
•
Install the pressure relief valve near the pressure tank and route to a drain capable of full sys-
tem flow.
5. Pressure Tank. Refer to
6. Pressure Gauge
7. Pressure Sensor or Transducer. Locate within 5 feet (1.5 m) of pump discharge. Install in a ver-
tical position.
8. SubDrive Utility VFD
9. Power Supply from Circuit Breaker. Single phase, 115/230 VAC +/- 10%.
10. Power to Motor. Single-Phase.
IMPORTANT: If the pump is equipped with a built-in pressure switch, the power wires from the
VFD must bypass the pressure switch and connect directly to the motor.
14
"Minimum Pressure Tank and Supply Pipe Sizing" on page
15.