Watts OFRES-1035 - Manual (Page 4)

4
Iron, Manganese and Copper
Just as with conventional water softening media, One-
Flow ® needs to be protected from excess levels of certain
metals that can easily coat the active surface, reducing
its effectiveness over time. Confirm that the levels of iron
(Fe) and manganese (Mn) are less than 0.3 mg/L and 0.05
mg/L respectively. Copper should be less than .1 ppm.
Copper
Copper usually originates from new copper plumbing
upstream of the OneFlow ® system. If this condition exists,
we recommend waiting 4 weeks before placing the sys-
tem in operation. This will allow the copper surfaces to be
fully flushed and develop a natural protective surface. To
further minimize any problem with excess copper, avoid
applying excess flux on the inner surfaces of the pipe and
use a low-corrosivity water soluble flux listed under the
ASTM B813 standard. Once the plumbing connections are
complete, place the OneFlow ® system in bypass prior to
following the startup procedure. All new copper plumbing
before the system should be allowed to passivate for a
period of 4 weeks prior to starting the system up.
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Cautions!
• Do not let the system freeze. Damage to the tank may result.
• 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 UP-Flow, 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 facili-
tate installation and service.
• Observe all local plumbing and building codes when installing
the system.
• Water known to have heavy loads of dirt and debris should
be prefiltered using a 20 micron filter cartridge model number
PWFIL-SED-BB-10-20M-PLT and 1" high flow filter housing
model number PWHSG-ASY-BB-10-1-PR.
• 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 bypass valve. 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.
• Support inlet and outlet plumbing in some manner (use pipe
hangers) to keep the weight off of the bypass fittings.
• Do not use on water that is microbiologically unsafe or of
unknown quality.
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 instal-
lations. Please follow water flow diagram illustrated in Figure
3.
• Please see the “Important note about iron, manganese and
copper in the water supply” section.
• Please see the note about “Using OneFlow ® with other water
treatment equipment” on the previous page.
• This system is designed for residential applications only.
• This system comes with a bypass valve to bypass the system
in case of a leak or the need to remove the system from the
installation area. The nuts, locking rings, and O-rings must
be installed on the connection fittings by the installer. Please
see Figure 1 Bypass Valve and Connection Fittings detail for
proper assembly of the #CK-V3007. To properly assemble the
connection 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.
Important Note About Iron, Manganese And Copper
In The Water Supply