Pentair 355067 Impeller Instruction Manual

Introduction

This manual provides essential information for the installation, operation, and maintenance of the Pentair 355067 Impeller. This component is designed as a direct replacement for Pentair PacFab Pinnacle and Challenger series pool and spa pumps with 0.75 Original Horsepower (OHP) or 1.0 Total Horsepower (THP) ratings. Adhering to these instructions will help ensure proper function and longevity of your pump system.

Safety Information

• Disconnect Power: Always ensure that all electrical power to the pump and associated equipment is disconnected at the circuit breaker before attempting any installation, service, or maintenance. Failure to do so can result in serious injury or death.
• Qualified Personnel: Installation and service should be performed by a qualified pool professional or a person with sufficient knowledge and experience in pool equipment maintenance.
• Read All Instructions: Before proceeding, read and understand all instructions in this manual and any accompanying pump manuals.
• Eye Protection: Wear appropriate eye protection during installation and maintenance procedures.
• Chemicals: Be aware of and handle pool chemicals safely. Refer to chemical manufacturer instructions.

Product Overview

The Pentair 355067 Impeller is a crucial component within your pool or spa pump, responsible for creating the centrifugal force that moves water through the filtration and circulation system. This specific impeller is engineered for optimal performance in compatible Pentair pump models, ensuring efficient water flow and system operation.

Figure 1: Front view of the Pentair 355067 Impeller. This image shows the main body and the threaded shaft connection point.

Installation (Replacement)

This impeller is a replacement part. Installation involves disassembling the pump to access the motor shaft. Always refer to your specific pump model's service manual for detailed disassembly and reassembly instructions, as procedures may vary slightly.

1. Prepare for Installation: Ensure the pump is completely disconnected from power and drained of water. Close all necessary valves to prevent water flow.
2. Access the Impeller: Carefully remove the pump housing and diffuser to expose the existing impeller. You may need specialized tools to hold the motor shaft while unscrewing the old impeller.
3. Remove Old Impeller: Unscrew the old impeller from the motor shaft. Note the direction of rotation for removal (typically counter-clockwise). Inspect the motor shaft for any damage or wear.
4. Install New Impeller: Thread the new Pentair 355067 Impeller onto the motor shaft. Hand-tighten first, then use appropriate tools to secure it firmly. Ensure it is seated correctly and spins freely without rubbing against the diffuser or pump housing.
5. Reassemble Pump: Reinstall the diffuser, pump housing, and any other components removed during disassembly. Ensure all O-rings and gaskets are properly seated and lubricated (if required) to prevent leaks. Tighten all bolts and clamps according to the pump manufacturer's specifications.
6. Prime the Pump: Before restoring power, ensure the pump is properly primed by filling the pump basket with water until it overflows. This prevents dry running and potential damage to the pump and impeller.
7. Restore Power: Once the pump is fully reassembled and primed, restore electrical power at the circuit breaker.
8. Test Operation: Start the pump and check for proper water flow and any leaks. Monitor for unusual noises or vibrations.

Figure 2: Side view of the Pentair 355067 Impeller, showing the vanes and hub design.

Operating Principles

Once correctly installed, the Pentair 355067 Impeller functions as an integral part of your pump's hydraulic system. When the pump motor operates, the impeller rotates at high speed, drawing water into its center (eye) and then accelerating it outwards through its vanes. This centrifugal action creates pressure, forcing the water through the pump's discharge port and into the pool or spa circulation system. Proper operation relies on a clear, unobstructed impeller and a fully primed pump.

Maintenance

Regular inspection and maintenance of your pump system, including the impeller, are essential for optimal performance and longevity.

• Visual Inspection: Periodically inspect the impeller (when the pump is off and disassembled for other maintenance, such as seal replacement) for any signs of wear, cracks, or damage.
• Debris Removal: Ensure the impeller vanes are free from debris such as hair, leaves, or other foreign objects that can impede water flow and cause imbalance.
• Water Chemistry: Maintain proper pool/spa water chemistry to prevent scaling or corrosive damage to the impeller material.
• Pump Priming: Always ensure the pump is properly primed before starting to prevent dry running, which can cause excessive heat and damage to the impeller and pump seal.

Troubleshooting

If your pump system is experiencing issues, consider the following troubleshooting steps related to the impeller:

• Reduced Water Flow:
  • Check for clogs in the pump basket, skimmer, or plumbing lines.
  • Inspect the impeller for blockages or significant wear/damage.
  • Ensure the pump is fully primed and not drawing air.
• Pump Making Unusual Noise (e.g., grinding, rattling):
  • Disconnect power and inspect the impeller for debris lodged within the vanes.
  • Check if the impeller is rubbing against the diffuser or pump housing due to improper installation or a damaged motor shaft.
  • Cavitation (a grinding sound) can occur if the pump is not receiving enough water; check for clogged lines or low water level.
• Pump Not Priming:
  • Verify the water level in the pool/spa is adequate.
  • Check for air leaks in the suction line, pump lid O-ring, or drain plugs.
  • Inspect the impeller for severe damage that prevents it from creating sufficient suction.

If these steps do not resolve the issue, consult a qualified pool professional.

Specifications

Warranty

Specific warranty terms and conditions for the Pentair 355067 Impeller are provided by Pentair. For detailed warranty information, including coverage period and claims process, please refer to the official Pentair website or contact Pentair customer support directly. Keep your proof of purchase for warranty purposes.

Support

For technical assistance, troubleshooting guidance beyond this manual, or to inquire about replacement parts, please contact Pentair customer support. You can find contact information and additional resources on the official Pentair website:

Pentair Official Website: www.pentair.com

When contacting support, please have your product model number (PEN355067Z) and any relevant pump model information readily available.