Watts OneFlow User Manual

Introduction
The Watts OneFlow
®
Anti-Scale System provides protection from
scale formation on internal plumbing surfaces. The OneFlow
®
system can be installed at the point of entry to a building to treat
both hot and cold water, or it can be located directly before a
water heater, boiler, or other water using device that requires
protection from hard water.
OneFlow
®
prevents scale by transforming the normal dissolved
hardness minerals into undissolved crystal microparticles. These
crystals stay suspended in the water and have a greatly reduced
ability to react and attach to surfaces like dissolved hardness
does. Therefore the problem of internal buildup of scale in pipes,
water heaters and on fixtures and glass is greatly reduced.
OneFlow
®
is not a water softener – Water treatment chemistry (e.g.
antiscalants, sequestrants, etc.. will most likely have to be changed
to be compatible with OneFlow
®
treated water. Laundry and ware-
washing chemistry will likewise require adjustments.
OneFlow
®
Benefits
• Chemical free scale prevention. Cost savings and environmental
benefits.
• Virtually maintenance free. No salt bags or other chemicals to
buy, transport and store.
• No electricity, no wastewater, completely self-contained.
• Improves the efficiency of water-using appliances.
• Simple installation – no electrical and drain hookup.
• Safe for landscaping and lawn watering. No need for costly
bypass plumbing.
• Compatible with all on-site and community wastewater treat-
ment systems.
• Not subject to water softener restrictions and “bans”.
• OneFlow
®
treated water has no added sodium, is safe to
drink and is well suited for use in food and beverage prepa-
ration.
Installation, Operation and
Maintenance Manual
Model OF1465, OF1665
OneFlow
®
Anti-Scale Systems
Chemical-Free, Salt-Free Scale Prevention
IOM-OF1465_1665
WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.

Watts OneFlow Specifications

General

Operating Temperature	40-100°F
Connection Size	1" NPT
Inlet/Outlet Size	1" NPT
Maximum Pressure	125 psi
Temperature Range	40-100°F
Application	Residential

Summary

Introduction to OneFlow® Systems

OneFlow® System Benefits

Details the advantages of the OneFlow® system, focusing on chemical-free, maintenance-free, and efficiency benefits.

Water Quality and Compatibility

Iron, Manganese, and Copper Considerations

Addresses limitations and requirements for iron, manganese, and copper in feed water for optimal system performance.

Installation Precautions and Warnings

Highlights critical safety and installation guidelines, including pressure limits, placement, and environmental factors.

Using OneFlow® with Other Treatment Equipment

Explains how to integrate OneFlow® with other water treatment systems, emphasizing correct order and chemical compatibility.

Equipment Specifications and Feed Water Requirements

Mechanical and Performance Specifications

Provides details on system dimensions, weight, connections, and flow rate versus temperature.

Feed Water Chemistry Limitations and Notices

Outlines essential feed water chemistry requirements and potential issues like silica and copper, with related notices.

Installation and Start-Up Procedures

Tightening Tank Bushings and Piping Installation

Details steps for securing tank fittings and installing plumbing, including the use of flexible connectors and pipe support.

System Start-Up and Leak Checking

Guides users through the initial start-up process, including filling the tank, releasing air, and checking for leaks.

Typical Installation Diagrams

Illustrates single and multi-bank system installations for visual reference.

Parts and Tank Information

Component Parts List

Lists all necessary parts for installation and maintenance, including EDP numbers and descriptions.

Available Tank Size Specifications

Details the dimensions and flow rate capacities for different tank models.