Feed Water Chemistry Requirements; Installation Precautions - Watts OneFlow OF210-1 Manuel D'installation, D'utilisation Et D'entretien

Feed Water Chemistry Requirements

pH
Hardness (maximum)
Water Pressure
Temperature
Free Chlorine
Iron (maximum)
Manganese (maximum)
Copper (maximum)
Oil & H2S
Total Phosphates
Silica (maximum)
TDS
NOTICE
Not for use on closed loop systems.
* Systems using OneFlow cartridge technology are effective at
controlling lime-scale formation inside the plumbing system at
influent hardness levels up 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.
WARNING
!
***Pursuant to the EPA drinking water standards, the copper
concentration permitted is up to 1.3 ppm. Typically originating
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.
6.5-8.5
30 grains (513 ppm CaCO3)*
15psi to 90psi (1.03 bar to 6.2 bar)
40°F to 100°F (5°C to 38°C)
<2 ppm
0.3 ppm**
0.05 ppm**
1.3 ppm***
Must be Removed Prior to OneFlow
<3.0 ppm
20 ppm
†
<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.
WARNING
!
• Connect system to cold water supply only. Water temperature
cannot exceed 100°F/38°C.
• System must be installed in a vertical, upright and level position.
• OneFlow systems must not be used in conjunction with
polyphosphate or any other scale inhibitor.
! 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/38°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
• 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.
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