ALTHY PRE-AUTO2 Automatic Flushing Backwash Prefilter

1. Product Introduction

The ALTHY PRE-AUTO2 prefilter is primarily constructed from HPb59-1 copper parts, an engineering plastic shell, and a 316 stainless steel filter screen. It is designed to effectively filter sediment, rust, and granular debris from water. This product serves as a pretreatment device in water treatment systems, extending the service life of downstream water equipment. Its filter element boasts a long service life, can be cleaned, and reused repeatedly, offering long-term benefits after a single purchase.

2. Product Features

• Filter Material: SUS316L stainless steel mesh, corrosion-resistant and rust-resistant, with a filtration accuracy of 40µm. Scientifically matched with 70-90µm double filter screen.
• Construction: National standard HPb59-1 copper material, processed with high-precision technology.
• Durable Filter Bottle: Made of unique modified raw materials, capable of withstanding burst pressures up to 80 kg and over 150,000 water hammer tests.
• Freeze Resistance: The bottle body has passed freezing tests, showing no bursting at minus 30°C and 1.05MPa pressure.
• Automatic Cleaning: Features automatic sewage cleaning with customizable cycles (7, 15, or 30 days).
• Water Pressure Monitoring: Built-in water pressure gauge for real-time monitoring.
• Safe Materials: 100% safe, BPA-free, and Lead-free materials.
• Explosion Proof: Passed 1000psi pressure test.
• Resists Compression: Passed 150,000 water hammer tests.

3. Matters Needing Attention

• Installation, debugging, and maintenance should be carried out by professionals.
• Install this product in a dry indoor environment, away from heat sources and children.
• Only suitable for municipal tap water at 5-50°C. Do not use for wastewater or corrosive liquids.
• Ensure the water flow direction marked on the valve body matches the pipeline flow direction during installation.
• The installation position must ensure a reliable drainage system.
• Flush the filter at least once a month, depending on local water quality.
• Protect all parts during normal cleaning and maintenance.
• Strictly forbidden to freeze during use.
• The sewage outlet must be perpendicular to the ground during installation.
• If installed outdoors, equip with a sun visor for waterproof protection.

4. Technical Specifications

5. Product Part Names

1. Month record table
2. Pressure gauge
3. Copper body
4. Filter bottle
5. Lower shell
6. Upper shell

6. Product Installation

All installation, maintenance, and use diagrams in this manual are for reference only; please refer to the actual product.

Step 1: Prepare for Installation

Close the main water inlet valve and vent any remaining tap water from the pipe. Ensure that the copper valve head and the filter bottle are securely tightened.

Step 2: Attach Adapters

Wrap the outer threaded ends of the two sets of adapters with several turns of raw material tape. Screw them into the PPR female threaded connector (note: PPR female threaded connector needs to be supplied by yourself) and tighten with a tool.

Step 3: Connect Filter to Pipe

Connect the filter directly to the pipe. Ensure the white gasket is correctly placed within the union nut.

Step 4: Tighten Connections

Tighten the union nuts at both ends of the copper valve head.

Installation Precautions:

• Close the main water inlet valve and drain the remaining water in the pipeline before installation.
• Ensure the water flow direction marked on the valve body is consistent with the pipeline flow direction.
• The filter bottle assembly must be kept upright after installation.

7. Operation: Flushing Function

The ALTHY PRE-AUTO2 features an automatic flushing system to maintain optimal performance.

Flushing Function Description:

• Initial Flush: After installation, open the main water inlet valve and perform an initial flush.
• Drainage: Before flushing, ensure a reliable drainage system is in place. A suitable container can also be used to collect flushing sewage.
• Immediate Flushing: In the setting state, touch the 'Flush' button. The buzzer will beep once, and the system will enter instant flushing mode. The electric ball valve will remain open, and the preset flushing interval indicator will flash (500ms on and 500ms off). Fixed sewage will be discharged for 30 seconds. The electric ball valve will then automatically close, and the system restarts its countdown.
• Automatic Flushing: When the preset automatic flushing time arrives, the electric ball valve will automatically open, and sewage will be discharged for 30 seconds. The selected flushing interval indicator will flash (500ms on and 500ms off). The electric ball valve will then automatically close after discharge, and the system will restart its countdown. You can set automatic flush intervals to 7, 15, or 30 days.

8. Maintenance

Filter Cleaning and Replacement:

• The product can be used continuously for 8-12 months before the filter requires cleaning. It is recommended that professional maintenance personnel perform the cleaning.
• If normal scraping and backwashing fail to remove dirt from the filter and affect water use, it is recommended to disassemble and wash the filter assembly.
• During normal cleaning and maintenance, ensure all parts are protected. Only original parts should be used for replacement.
• Replace the filter element every 2-4 years, depending on water quality.

Disassembly Tutorial for Cleaning:

1. Close the main water inlet valve, touch the flush button, and open the drain ball valve to drain remaining water.
2. Use the wrench from the accessory kit to turn counterclockwise and unscrew the filter bottle.
3. Take out the filter kit upwards.
4. Take out the spin-scraper accessories, remove the filter, and clean the dirt from the filter surface.

How the Product Works (Filtering vs. Backwashing):

9. Troubleshooting

10. User Tips

• Battery Replacement: The automatic flushing function is powered by three AAA batteries (not included). While the manual does not detail battery replacement, the bottom part of the filter is likely designed for access.
• Water Flow Direction: The filter is designed for a specific water flow direction, indicated by markings on the valve body. Ensure your plumbing matches this direction during installation. It is not reversible.
• Hard Water/Calcium: This prefilter is designed to remove sediment, rust, and granular impurities down to 40 microns, including limestone particles. However, it is not specifically designed to remove dissolved calcium or soften hard water. For significant hardness reduction, additional water treatment systems may be required.
• Outdoor Installation: If installing the AL-AUTO2 outdoors, it is crucial to equip it with a sun visor or protective cover to ensure it is waterproof and protected from the elements.

11. Warranty and Support

For any questions regarding installation, compatibility, or product operation, please contact our customer service. Refer to the official product page or your purchase documentation for specific warranty details.

12. Package Contents