AVENLI JL-3000A Sand Filter System

Introduction

This manual provides detailed instructions for the safe and efficient operation, installation, and maintenance of your AVENLI JL-3000A Sand Filter System. Please read this manual thoroughly before attempting to install or operate the unit. Retain this manual for future reference.

The AVENLI JL-3000A Sand Filter System is designed to provide superior filtration for your pool, ensuring clean and clear water. It features a durable, corrosion-resistant tank and a 6-position valve for various operational modes.

Important Safety Information

• This product is intended for outdoor use only.
• Always disconnect power before performing any maintenance or service.
• Ensure all electrical connections are made by a qualified electrician and comply with local codes.
• Keep children away from the filter system during operation.
• Do not operate the filter system if any part is damaged or missing.
• Use only silica sand of the specified grade (0.7-1.25 mm).

Package Contents

Please verify that all components are present and undamaged before proceeding with installation.

• 1 x AVENLI JL-3000A Sand Filter System Unit
• 1 x Pressure Gauge
• Hoses and connectors (may vary by package)
• Instruction Manual

Note: Filter sand is not included and must be purchased separately. Recommended silica sand size is between 0.7 mm and 1.25 mm, with an approximate capacity of 20 kg.

Technical Specifications

Setup and Installation

1. Positioning the Filter: Place the sand filter system on a firm, level surface, close to the pool and a power outlet. Ensure it is protected from direct sunlight and harsh weather conditions.
2. Adding Filter Sand:
   • Remove the top cover of the filter tank.
   • Carefully pour the recommended amount (approx. 20 kg) of silica sand (0.7-1.25 mm) into the tank. Ensure the center pipe is not dislodged during this process.
   • Distribute the sand evenly. Do not overfill the tank.
   • Replace the top cover and secure it firmly.
3. Connecting Hoses:
   • Connect the pool's skimmer/suction line to the "PUMP" inlet on the filter system.
   • Connect the pool's return line to the "RETURN" outlet on the filter system.
   • Connect a backwash hose to the "WASTE" port, directing it to an appropriate drainage area.
   • Ensure all hose clamps and connections are tight to prevent leaks.
4. Electrical Connection: Connect the power cord to a grounded electrical outlet. Ensure the voltage matches the system's requirements (220-240V).
5. Priming the Pump: Before starting, ensure the pump is primed by filling it with water. This prevents dry running and damage to the pump.

Figure 1: Overview of the AVENLI JL-3000A Sand Filter System, showing the main unit with connected hoses and pressure gauge.

Figure 2: The AVENLI JL-3000A Sand Filter System installed beside a pool, illustrating typical placement and connections.

Operating Instructions

The AVENLI JL-3000A features a 6-position multi-port valve for various operational modes. Always turn off the pump before changing the valve position to prevent damage.

• FILTER: This is the standard operating mode for daily filtration. Water is pumped through the sand bed, filtered, and returned to the pool.
• RINSE: Used after backwashing to flush out any remaining dirt from the sand bed before returning to FILTER mode. Run for 30-60 seconds.
• RECIRCULATE: Water is circulated through the pump and valve, bypassing the filter sand. Useful for distributing chemicals without filtering.
• BACKWASH: Reverses the water flow through the sand bed to clean it. Dirty water is directed out through the waste port. Perform when the pressure gauge reads 8-10 PSI above its clean operating pressure. Run until water runs clear (approx. 2-3 minutes).
• CLOSED: Shuts off all flow to the filter. Use for servicing the pump or filter. Never operate the pump with the valve in the CLOSED position.
• WASTE (DRAIN): Drains water directly from the pool through the waste port, bypassing the filter. Useful for lowering pool water level or vacuuming heavy debris directly to waste.

Pressure Gauge: The integrated pressure gauge indicates the internal pressure of the filter system. A rising pressure indicates that the filter sand is becoming dirty and requires backwashing.

Maintenance

• Regular Backwashing: Backwash the filter when the pressure gauge reads 8-10 PSI above its normal clean operating pressure, or at least once a week during heavy use.
• Rinsing: Always rinse the filter after backwashing to prevent dirty water from returning to the pool.
• Sand Replacement: Filter sand typically needs to be replaced every 3-5 years, depending on usage and water quality. Refer to the "Adding Filter Sand" section for instructions.
• Winterization: In colder climates, drain all water from the filter system and pump to prevent freezing damage. Store the unit in a dry, protected area.
• Inspection: Periodically inspect hoses, clamps, and seals for wear or damage. Replace any worn parts immediately.

Troubleshooting

Warranty and Customer Support

For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.

If you encounter issues not covered in the troubleshooting section or require further assistance, please contact AVENLI customer support or your authorized service center. Provide your model number (JL-3000A) and purchase date when seeking support.