1. Introduction
This manual provides essential information for the safe installation, operation, and maintenance of your Pentair SuperFlo VST Variable Speed Pool Pump, Model 342002. Please read this manual thoroughly before attempting to install or operate the pump. Proper installation and maintenance are crucial for optimal performance, energy efficiency, and longevity of the unit.

Figure 1: Pentair SuperFlo VST Pool Pump, front view. This image shows the overall design of the pump, including the motor housing and the wet end with the strainer basket lid.
2. Important Safety Information
WARNING: Failure to follow these instructions can result in serious injury or death.
- Always disconnect power to the pump at the circuit breaker before servicing.
- Installation must be performed by a qualified professional and comply with all local and national electrical and plumbing codes.
- Do not operate the pump if it is damaged or has missing parts.
- Ensure proper grounding and bonding of the pump to prevent electrical shock hazards.
- Keep children away from the pump and pool equipment area.
- Never run the pump dry. Ensure the pump is primed with water before starting.
- This pump is designed for permanent installation in residential swimming pools.
3. Setup and Installation
3.1 Pre-Installation Checks
- Verify that all package contents are present and undamaged.
- Ensure the installation site is level, well-drained, and protected from excessive moisture.
- Confirm that the electrical supply matches the pump's voltage requirements (115V or 230V).
3.2 Mounting the Pump
Mount the pump on a solid, level foundation that can support its weight. Use appropriate hardware to secure the pump to prevent vibration and movement.

Figure 2: Pentair SuperFlo VST Pool Pump dimensions. This image provides the length, width, and height measurements of the pump for installation planning.
3.3 Plumbing Connections
The SuperFlo VST pump offers flexible plumbing options with multiple port sizes. Connect the suction and discharge lines using appropriate PVC fittings and primer/cement. Ensure all connections are watertight to prevent air leaks, which can affect pump performance and priming.
- Use unions for easy removal and servicing.
- Minimize the number of elbows and fittings to reduce friction loss.
- Ensure the suction line is as short and direct as possible.
3.4 Electrical Connections
This pump operates on 115V or 230V. Ensure the wiring matches the selected voltage and is performed by a licensed electrician. The pump must be properly grounded and bonded according to local codes.
- Connect the pump to a dedicated circuit protected by a Ground Fault Circuit Interrupter (GFCI).
- Refer to the wiring diagram located inside the pump's terminal box cover.
4. Operating Instructions
4.1 Initial Startup and Priming
- Ensure all valves are open and the strainer basket is clean and full of water.
- Remove the strainer basket lid, fill the basket with water, and replace the lid securely.
- Turn on the power to the pump at the circuit breaker.
- The pump will attempt to prime. If it does not prime within 5 minutes, turn off power, recheck connections, and repeat the priming process.
4.2 Programming Variable Speeds
The SuperFlo VST pump allows for programming multiple speeds to optimize energy consumption and pool circulation. The control panel on the pump allows direct programming.

Figure 3: Top view of the Pentair SuperFlo VST Pool Pump, showing the integrated control panel for programming and monitoring.
- Use the control panel buttons to set desired RPMs and run times for different operations (e.g., filtration, spa jets, cleaning).
- Refer to the detailed programming guide in the full manual for advanced scheduling.
4.3 Smart Connectivity (RS485)
The pump is compatible with Pentair Automation systems (EasyTouch, IntelliCenter) and Jandy iAqualink via RS485 connectivity. This allows for remote monitoring, scheduling, and control through a smartphone or tablet application.
- Consult your automation system's manual for specific connection and configuration instructions.
- An additional interface may be required for smart app functionality.
5. Maintenance
5.1 Strainer Basket Cleaning
Regularly inspect and clean the strainer basket to ensure optimal flow and prevent damage to the pump.
- Turn off power to the pump at the circuit breaker.
- Rotate the strainer basket lid counter-clockwise to remove.
- Lift out the basket and empty any debris.
- Rinse the basket with water.
- Inspect the lid O-ring for cracks or wear; replace if necessary.
- Replace the basket and secure the lid by rotating clockwise until tight.

Figure 4: Pentair SuperFlo VST Pool Pump, showing the strainer basket area. Regular cleaning of this basket is essential for pump performance.
5.2 Motor and Housing Inspection
Periodically check the motor and housing for any signs of wear, corrosion, or damage. Ensure ventilation openings are clear of debris. The pump is designed to withstand outdoor conditions, but regular inspection helps prolong its life.
5.3 Winterization
In areas subject to freezing temperatures, the pump must be properly winterized to prevent damage.
- Turn off power to the pump at the circuit breaker.
- Drain all water from the pump by removing the drain plugs.
- Store the drain plugs in the strainer basket.
- Cover the pump to protect it from elements, or remove and store indoors if extreme cold is expected.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power, tripped breaker, faulty wiring. | Check power supply, reset breaker, inspect wiring (by qualified electrician). |
| Pump runs but does not prime | Air leak in suction line, low water level, clogged strainer basket. | Check all plumbing connections for leaks, ensure adequate water level in pool, clean strainer basket. |
| Reduced flow rate | Clogged filter, dirty impeller, partially closed valves. | Backwash/clean filter, inspect impeller for debris, ensure all valves are fully open. |
| Excessive noise/vibration | Air leak, cavitation, loose mounting, worn bearings. | Check for air leaks, ensure proper water flow, tighten mounting bolts, contact service for worn bearings. |
For issues not listed or if troubleshooting steps do not resolve the problem, contact Pentair Customer Support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 342002 |
| Brand | Pentair |
| Power Source | 115/230V |
| Voltage | 115.23 volts (Nominal) |
| Horsepower | 1.5 HP |
| Maximum Flow Rate | 115 gpm |
| Product Dimensions (L x W x H) | 26"L x 16"W x 12"H |
| Material | Stainless Steel / Metal |
| Style | Submersible |
| Connectivity | RS485 (Pentair Automation, Jandy iAqualink compatible) |
| Weighted Energy Factor (WEF) | 9.0 |
8. Warranty Information
Pentair products are manufactured to high standards and are backed by a limited warranty. Specific warranty terms and conditions, including duration and coverage, may vary by region and purchase date.
For detailed warranty information, please refer to the warranty card included with your product or visit the official Pentair website. Keep your proof of purchase for warranty claims.
9. Customer Support
If you have any questions regarding the installation, operation, or maintenance of your Pentair SuperFlo VST Pool Pump, please contact Pentair Customer Support.
- Website: www.pentair.com
- Phone: Refer to the Pentair website for regional contact numbers.
- Online Resources: Additional manuals, FAQs, and troubleshooting guides may be available on the Pentair support portal.







