22
WARNING
!
Installation Precautions
• Do
NOT
install system on line pressure above 90psi.
• Do
NOT
install system on HOT water line. Failure to limit line
temperature to 100°F/37.8°C may result in housing failure
and damage.
• Do
NOT
install the system backwards with the feed water
line connected to the outlet.
• Do
NOT
use liquid pipe compounds for fitting connections.
USE two to three wraps of Teflon
®
tape.
• Do
NOT
solder plumbing connections attached to filter
housing or inlet valve. Inlet valve and filter housing will be
damaged by high temperature.
• Do
NOT
allow system to freeze. Turn off water supply to
housing and drain housing if temperature falls below 32°F.
• Do
NOT
install system in direct sunlight or where system is
exposed to harsh chemicals or may be subjected to being
struck by moving equipment, carts, mops or any other item
that may cause damage.
•
ALLOW
a minimum of 3" under the housing to allow for
filter replacement.
• IF water hammer is evident, install water hammer arrestors
before the OneFlow unit.
• Do
NOT
overtighten fitting connections into inlet valve or
housing outlet.
• Always back-up valves and fittings with a wrench when installing
a fitting to avoid turning the valve.
• Do
NOT
install the unit behind equipment where it may be
difficult to access the system for filter replacement.
Position the OneFlow unit in a suitable location. The direction
of flow through the OneFlow unit is always left to right; keep
this in mind when determining installation location. Do NOT
mount the OneFlow system near any source of heat. Also, do
not mount the system above any device or area that would be
adversely affected by water.
NOTICE
Not for use on closed loop systems.
* Systems using OneFlow cartridge technology are effective
at controlling lime-scale formation inside the plumbing sys-
tem at influent hardness levels up to 30 grains per gallon
(513 ppm) as calcium carbonate. Due to variances in water
chemistry, 30 grains per gallon is a recommended hardness
maximum due to potential aesthetic issues related to soft
scale residue formation outside of the plumbing system.
Testing should be performed to determine proper application
where hardness levels exceed 30 grains per gallon.
** Just as with conventional water softening media, OneFlow
media needs to be protected from excess levels of certain
metals that can easily coat the active surface, reducing its
effectiveness over time. Public water supplies rarely, if ever,
present a problem, but if the water supply is from a private
well, confirm that the levels of iron (Fe) and manganese (Mn)
are less than 0.3 mg/L and 0.05 mg/L, respectively.
*** Pursuant to the EPA drinking water standards, the copper
concentration permitted is up to 1.3 ppm. Typically origi-
nating from new copper plumbing, high levels of copper
can foul OneFlow media. New Copper lines need to be
passivated for a minimum of 4 weeks before placing unit
into service. For applications with copper concentration
greater than 1.3 ppm, please consult Watts Water Quality
Technical Service. To further minimize any problem with
excess copper, avoid applying excessive flux on the inner
surfaces of the pipe and use a low-corrosivity water
soluble flux listed under the ASTM B813 standard.
NOTICE
†
OneFlow media does not reduce silica scaling. While silica
tends to have a less significant effect on scale formation than
other minerals, it can act as a binder that makes water spots
and scale residue outside the plumbing system difficult to
remove. This 20 ppm limitation is for aesthetic purposes.
††
All other contaminants must meet the requirements of the
USEPA Safe Drinking Water Act. Specific Mineral and Metal
MCL’s, identified in Watts published Feed Water Chemistry
Requirements, supersedes the USEPA SDWA.
Water known to have heavy loads of dirt and debris may
require pre-filtration prior to OneFlow.
WARNING
!
Feed Water Chemistry Requirements
pH
6.5-8.5
Hardness (maximum)
30 grains (513 ppm CaCO3) *
Water Pressure
15psi to 90psi (1.03 bar to 6.2 bar)
Temperature
40°F to 100°F (5°C to 38°C)
Free Chlorine
<2 ppm
Iron (maximum)
0.3 ppm **
Manganese (maximum)
0.05 ppm **
Copper (maximum)
1.3 ppm***
Oil & H2S
Must be Removed Prior to OneFlow
Total Phosphates
<3.0 ppm
Silica (maximum)
20 ppm
†
TDS
<1500 mg/L
††
OneFlow systems are complete, self-contained, loaded with
media, and ready to use. A simple inlet and outlet connection is
all that is required for installation. Please review operating pres-
sures, temperatures and water chemistry limitations to ensure
compatibility.
• Connect system to cold water supply only. Water temperature
cannot exceed 100°F/37.8°C.
• System
must be
installed in a vertical, upright and level position.
• Do not apply any other antiscalants before or after OneFlow.
WARNING
!
