Instruction Manual

For Commercial and Food Service Applications
ES-OF110_120_140
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Connection Sizes:
1
⁄2" and
3
⁄4" (15 and 20mm)
Flow Rates: From 0.5 gpm to 4 gpm (1.9 lpm to 15.2 lpm)
The OneFlow
®
Anti-Scale System provides protection from
scale formation on internal and external plumbing surfaces.
The OneFlow
®
system is a single cartridge-based system that
may be installed on a cold water line prior to a water-using
device (water heater, hot-beverage system, appliance, steamer
etc.) that requires protection from the ill effects of hard water.
OneFlow
®
prevents scale by transforming dissolved hardness
minerals into harmless, inactive microscopic crystal particles.
These crystals stay suspended in the water and are passed to
drain thereby having a greatly reduced ability to react negatively
like dissolved hardness does. The system requires very little
maintenance, no backwashing, no salt and no electricity. Typical
hardness problems, especially build-up of scale in pipes, water
heaters, boilers and on fixtures are no longer a concern.
OneFlow
®
is not a water softener. It does not add chemicals.
It is a scale prevention device with proven third party labo-
ratory test data and years of successful Food Service and
Commercial applications. OneFlow
®
is the intelligent scale solu-
tion and is a great alternative to water softening (ion exchange)
or scale sequestering devices.
Features
• Chemical free scale prevention and protection - converts hard-
ness minerals to harmless, inactive microscopic crystals mak-
ing OneFlow
®
an effective alternative technology to a water
softener for the prevention of scale due to water hardness
• Virtually maintenance free - No salt bags or other chemicals
to constantly add or maintain
• No control valve, no electricity and no wastewater
• Uses environmentally friendly “green” technology
• Improves efficiency of all water appliances whether heating
the water or not
• Simple sizing & installation – all you need to know is pipe size
and flow rate
• Perfect system for restaurants, cafeterias and coffee shops
where multiple or single equipment protection is desired for
longer equipment life and reduced energy consumption
• Inlet ball valve for easy isolation shutoff and filter changes
• OneFlow
®
does not remove the essential minerals in water
that are linked to good health
• OneFlow
®
cartridge-based systems are easily maintained;
change the cartridge once per year
Models OF110-1, OF120-2 and OF140-4
OneFlow
®
Anti-Scale System
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
OF110-1
OF120-2
OF140-4
Models
Model Maximum Flow Rate Connection sizes
OF110 – 1 1 gpm (4 lpm)
1
⁄2” (15mm) FNPT
OF120 – 2 2 gpm (8 lpm)
1
⁄2” (15mm) FNPT
OF140 – 4 4 gpm (15 lpm)
3
⁄4” (20mm) FNPT
Replacement Cartridge
OF110RM Cartridge should be replaced every 12 months
OF120RM Cartridge should be replaced every 12 months
OF140RM Cartridge should be replaced every 12 months
LEAD FREE
*
* The wetted surface of this product contacted by consumable
water contains less than one quarter of one percent (0.25%) of
lead by weight.
For hot water applications where water temperature is
110°F - 150°F (43°C - 66°C), please consult ES-OneFlow-Hot Water.