User Manual for AQUA FLO AQUV-12R22 and AQUV-20R22 Ultraviolet Disinfection System

Quick Guide

The AQUA FLO AQUV-12R22 and AQUV-20R22 are three-stage ultraviolet disinfection systems designed for point-of-entry (POE) water treatment. The system uses two sediment filters (20 micron and 5 micron) followed by a UV chamber to destroy pathogenic bacteria. The system requires a constant 110V AC power supply and should be installed on the cold water line. The UV lamp must be replaced annually, and the system includes a ballast with an integrated timer to track lamp life.

Safety Guidelines

• Electrical Safety: Always unplug the unit before cleaning or maintenance. Use a properly grounded, GFCI-protected outlet.
• UV Safety: Never look directly at the UV lamp when it is on. Do not operate the lamp outside the disinfection chamber.
• Handling: Handle the lamp and quartz dome by the ends using soft, dry gloves or a cloth. Fingerprints can reduce lamp life.
• Water Safety: If the system is shut off for several hours, follow the disinfection procedure before consuming water.

Water Quality Requirements

For the system to function effectively, the feed water must meet these minimum criteria:

• Turbidity/Suspended Solids: Less than 1 NTU.
• Hardness: Less than 7 GPG (120 mg/L). A water softener is recommended if hardness is higher.
• Iron & Manganese: Iron less than 0.3 PPM and Manganese less than 0.05 mg/L.
• Tannins and Colour: Must be removed by a pre-treatment system as they reduce UV transmissivity.

Installation

The system should be installed indoors in a protected area (above 4°C/40°F) on the cold water line. It must be wall-mounted vertically with the lamp connector at the top. Provide at least 3 feet of clearance above the unit for lamp replacement.

• Plumbing: Install bypass piping with a shut-off valve to allow for service. Use only Teflon tape for connections.
• Electrical: A dedicated circuit with a surge protector is strongly recommended.
• Mounting: Mount directly to a wall stud using the provided lag bolts. Do not mount on drywall without reinforcement.

Disinfection Procedure

Disinfect plumbing lines during initial installation, after power outages, or if the unit was shut off. Shut off the supply valve, depressurize the lines, remove the filter cartridge, and add 1-2 cups of unscented household bleach to the housing. Reinstall the housing, open the supply valve, and run water until chlorine is detected at all faucets. Let the solution sit for 6-8 hours, then flush the system thoroughly.

Ballast Operation

The ballast features an audio/visual alarm and a 365-day countdown timer.

• Normal: Displays days remaining until lamp expiry.
• LF (Lamp Fault): Red LED on, beeping every 2 seconds. Indicates lamp is disconnected or defective.
• A3 (Lamp Expiry): Red LED on, beeping every 5 seconds. Lamp has expired; replace immediately.
• Resetting: After replacing the lamp, press and hold the button for ~10 seconds until "rSET" appears and a long beep sounds.

Maintenance

• UV Lamp: Replace annually when the display reaches 0.
• Quartz Dome: Clean at every lamp change. Replace every 3 years.
• Sediment Filters: Replace every 4-6 months or when pressure drops by 10 psi.
• O-Rings: Replace annually.

Troubleshooting

• Leak at gland nut: Hand-tighten gland nut and replace O-rings.
• Condensation: Normal in high humidity; install a dehumidifier.
• Hot water from taps: Flush water for 2 minutes after periods of non-use.
• Sump difficult to remove: Release pressure by opening a faucet; use a pipe on the wrench handle for extra leverage.

Technical Specifications

• Lamp Service Life: 9000 Hours.
• Max Operating Pressure: 100 psi.
• Water Temperature: 2 - 40°C (36-104°F).
• Reactor Material: 304 Stainless Steel.