Specifications; Standards; Cautions; Notes To The Installer - Watts OneFlow OF744-10-EK Installation, Operation And Maintenance Manual

Specifications

A OneFlow scale prevention system shall be installed on the main
water service pipe just after it enters the building, but after other
whole building water safety devices (backflow preventers or
pressure reducing valves), to effectively address water hardness
concerns. A system may also be installed further downstream to
protect specific equipment or areas within a plumbing system.
The system shall be plumbed with a bypass valve to allow
isolation of tank(s) and to allow the bypass of untreated water in
the event that service or media replacement be necessary. The
system shall include a media life monitor that automatically alerts
the user when media changes are due. The monitor shall connect
to Wi-Fi and automatically alert through email and text notifications.
The installation area should be suitable in size for the tank(s)
to be serviced without encumbrance and sit upright on a flat
level surface.
The system must operate in an upflow manner and does not
require additional water to backwash, flush, or regenerate once put
into service. The system shall not require any chemical additives for
operation. The electrical requirement shall be 120 volt 60 hertz.

Standards

Independent scientific testing has confirmed Template Assisted
Crystallization (TAC) technology provides scale reduction of over
95+%. Testing was conducted under protocol based on DVGW
W512 test to access control of scale formation.
CAUTION
!
• Not for use on closed loop systems.
• Do not allow the system to freeze or expose the system
to freezing temperatures. Water freezing in the system can
cause equipment damage.
• System must be operated in a vertical position. Do not lay
it down during operation. The system may be placed in any
position for shipping and installation but must be operated
in the vertical position.
• Place the system on a smooth, level surface. Because the
system operates in an upflow, fluidized bed mode, having
a level surface is more important than with a softener or
media filter.
• A bypass valve should be installed on every system to
facilitate installation and service.
• Observe all local plumbing and building codes when
installing the system.
• All new copper pipe and fittings used in the installation of
this system should be allowed to self passivate, under
normal operation and water flow, for a period of 4 weeks
minimum before placing the unit into service.
• If making a soldered copper installation, do all sweat soldering
before connecting pipes to the system. Torch heat will
damage plastic parts.
• When turning threaded pipe fittings onto plastic fittings, use
care not to cross-thread.
• Use PTFE tape on all external pipe threads. Do not use pipe
joint compound.
NOTICE

Notes to the Installer

The OneFlow system differs from a conventional softener or media
filter in a number of key respects.
• The system is light and only partially filled with media. This is
normal. The UP-flow operation of the system requires a lot of
freeboard to allow the bed to fully fluidize.
• The system has no underbed so you can tip the system over
without any fear of upsetting the media. This makes transpor-
tation and installation much easier than conventional systems.
Must be installed in VERTICAL POSITION.
• Because the OneFlow system operates in the UP-flow mode, the
tank connections are opposite of traditional installations. Please
follow water flow diagram illustrated in the installation diagrams.
• Please see the "Important Note about Iron, Manganese
and Copper" in the Feed Water Chemistry and Operating
Conditions section on page 4.
• Please see the note about "Using OneFlow with other water
treatment equipment" on this page.
• The nuts, locking rings, and O-rings must be installed on the
connection fittings by the installer. To properly assemble the con-
nection fitting first install the nut, then install the locking ring in
the grove closest to the nut. Use care not to break the locking
ring. Finally install the O-ring in the grove at the end of the fitting.
Note: Plumbing tape and general plumbing tools required.

Setup

Unpack and check the system components for damage or
missing parts.

Installation Considerations

Consider the following points when determining where to install
the system:
• Do not install the system where it would block access to the
water heater, main water shutoff, water meter, or electrical panels.
• Install the system in a place where water damage is least
likely to occur if a leak develops.
WARNING
!
Using OneFlow with Other Water Treatment
Equipment
Due to the unique properties of OneFlow, there are some
unique requirements for using OneFlow in conjunction with
filtration or other forms of water treatment.
1. OneFlow must be the last stage in the treatment chain.
Do not install any filters after OneFlow or before any devices
for which scale prevention is required. POU filters, e.g. car-
bon, RO or Ultraviolet (UV) are exempt from this requirement.
2. Do not apply any other antiscalants before or after OneFlow.
3. The addition of soaps, chemicals, or cleaners, before or
after OneFlow treatment, may reverse its anti-scale treat-
ment effects and/or create water with a heavy residue
or spotting potential. Any adverse conditions caused by
the addition of soaps, chemicals, or cleaners are the sole
responsibility of the end user.
4. OneFlow is not a water softener and does not soften
the water - Water treatment chemistry (e.g. antiscalants,
sequestrants, soaps, chemicals or cleaners etc...) will most
likely have to be changed to be compatible with OneFlow
treated water. Laundry and ware-washing chemistry will
likewise require adjustments.
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