Equipment Specifications
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 pressures, tempera-
tures and water chemistry limitations to ensure compatiblity.
Feed Water Chemistry Requirements
pH
Hardness (maximum)
Water Pressure
Temperature
Free Chlorine
Iron (maximum)
Manganese (maximum)
Copper
Oil & H2S
Total Phosphates
Silica (maximum)
TDS
NOTICE
* Systems using OneFlow
ling lime-scale formation inside the plumbing system at influ-
ent hardness levels up to 75 grains per gallon (1282 mg/l)
of 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 cop-
per concentration permitted is up to 1.3 ppm. Typically
originating from new copper plumbing, high levels of cop-
per can foul OneFlow media. New Copper lines need to
be passivated for a minumum of 4 weeks before placing
unit into service. For applications with copper concentra-
tion 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 th 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)*
15 psi to 100 psi (1.03 bar to 6.9 bar)
100° F to 140° F (38°C to 60°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*****
technology are effective at control-
®
.
®
Mechanical Specifications
Model
Inlet/Outlet Connections
Maximum Flow Rate
Dry Weight (lbs/kgs)
Replacement Media
Model
OF817-8HRM
OF817-12HRM
OF1019-20HRM
G (clearance)
A
®
C
Dimensions
Model
in.
OF817-8H
20
OF817-12H
20
OF1019-20H
22
E
in.
mm
in.
11
279
2
11
279
2
11
279
2
NOTICE
Anytime OneFlow
®
of a building it is recommended that a vacuum relief valve
also be installed to protect against tank collapse in the event the
plumbing system is drained. If a vacuum relief valve is not used
then the system should be placed in bypass anytime the plumb-
ing system is drained. The EDP code for the suggested vacuum
relief valve is 0556031 (not included). The vacuum relief valve
should be installed on the outlet of the system.
3
OF817-8H
OF817-12H
1" FNPT
1" FNPT
8 gpm
12 gpm
15 lbs./
16 lbs./
6.8 kgs.
7.3 kgs.
Replacement Frequency
Media must be replaced every 3 years
Media must be replaced every 3 years
Media must be replaced every 3 years
D
B
Dimensions
A
B
C
mm
in.
mm
in.
508
18
⁄
472
8
⁄
5
1
8
2
508
18
⁄
472
8
⁄
5
1
8
2
559
20
5
⁄
523
10
1
⁄
8
2
F
G
H
mm
in.
mm
in.
51
6
152
4
⁄
1
4
51
6
152
4
⁄
1
4
51
6
152
4
⁄
1
4
systems are installed above the ground floor
OF819-20H
1" FNPT
20 gpm
26 lbs./
11.8 kgs.
E
F
H
D
mm
in.
mm
216
1
⁄
36
3
8
216
1
⁄
36
3
8
267
1
3
⁄
36
8
Weight
mm
lbs.
kgs
108
15
6.8
108
16
7.3
108
26
11.8