Dormont OF110-1 User Manual
For Commercial and Food Service Applications
A Wa tts Product A vailable from:
FOR CO MMERCIA L FOODSE RVICE EQ UIPMENT
Job Name
Job Location
Engineer
Approval
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OneFlow® Anti-Scale1 System
Models OF110-1, OF120-2 and OF140-4
Connection Sizes: 1⁄2" and 3⁄4" (15 and 20mm)
The OneFlow Anti-Scale1 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
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
laboratory test data and years of successful Food Service and
Commercial applications. OneFlow is the intelligent scale
solution and is a great alternative to water softening (ion
exchange) or scale sequestering devices.
1
by transforming dissolved hardness
Contractor
Approval
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Contractor’s P.O. No.
Representative
OF110-1
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OF140-4
OF120-2
Features
• Chemical free scale prevention1 and protection - converts
hardness minerals to harmless, inactive microscopic crystals
making 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
Maximum Connection
Part # Model Flow Rate sizes FNPT
DOR-OF110 - 1 OF110 – 1 1.5 gpm (5.7 lpm)
DOR-OF120 - 2 OF120 – 2 3.0 gpm (11.3 lpm)
DOR-OF140 - 4 OF140 – 4 4.0 gpm (15 lpm)
1
⁄2" (15mm)
1
⁄2" (15mm)
3
⁄4" (20mm)
Replacement Cartridge
Part # Model
DOR-OF110RM OF110RM Cartridge should be replaced every 12 months
DOR-OF120RM OF120RM Cartridge should be replaced every 12 months
DOR-OF140RM OF140RM Cartridge should be replaced every 12 months
6015 Enterprise Drive, Export, PA 15632
1-800-DORMONT • FAX: 733-733-4808
Manufactured by Facility #1, USA
Plano, TX 75074
Specifications
A Wa tts Product A vailable from:
FOR CO MMERCIA L FOODSE RVICE EQ UIPMENT
The On eFlow e lements OF110RM ,
OF120R M and O F140RM are cert ified b y
NSF In ternati onal ag ainst NS F/ANSI
Standa rd 42 f or mate rial req uiremen ts only.
A OneFlow scale prevention1 system shall be installed on the cold water service
line to condition the tap water just prior to the service line feeding the equipment
it is designed to protect. The system will be sized for maximum or peak flow rate
based on the specification of said equipment. A OneFlow system may also be
installed to protect multiple pieces of equipment from the ill-effects of hard water
scale provided the aggregate peak flow rate for each piece of equipment it is protecting has been considered. The system shall be plumbed with a bypass valve
to allow isolation of filter housing to allow the bypass of untreated water in the
event that service or cartridge replacement be
necessary. The installation area should be suitable in size for the housing to
be serviced without encumbrance and the system should be installed per the
Installation, Operation & Maintenance manual as provided with each system.
The OneFlow system must not require additional waste water to backwash, flush,
or regenerate once put into service.
The system shall not require any chemical additives and shall not require electricity for operation.
Do not use on water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Water Chemistry & Limitations
pH 6.5 to 8.5
Hardness (maximum) 75 grains (1300 ppm CaCO3)
Temperature 41°F to 100°F (5 to 38°C)
Chlorine < 3 ppm
Iron (maximum) 0.3 mg/l
Manganese (maximum) 0.05 mg/l
Copper (maximum) 1.3 mg/l
Oil & H2S none allowed
Polyphosphate none allowed
Silica (maximum) 10 ppm
C
D
B
E
Standards
DVGW – German Technical and Scientific Association for Gas & Water
OneFlow meets standard W-512 for testing Physical Water Treatment
devices for Scale Prevention and achieved an efficiency rating of 99.6%
for scale prevention.
A
OneFlow media has been tested and certified for material safety to
NSF/ANSI Standard 42.
Performance
Chlorine, Taste, and Odor Reduction Capacity N/A
Service Flow Rate Detailed on front
Sediment Reduction N/A
Scale Inhibitor
Dimensions — Weights
Scale System Dimensions Weight Replacement Cartridges
A B C D E
Part Number in. mm in. mm in. mm in. mm in. mm lbs. kgs UPC Code Part Number UPC Code
DOR-OF110-1 14 1/2 37 4 1/2 11 5 1/8 13 6 5/8 17 2 1/2 6 5 2.3 662447105740 DOR-OF110RM 662447105801
DOR-OF120-2 24 1/2 62 4 1/2 11 5 1/8 13 6 5/8 17 2 1/2 6 8 3.6 662447105757 DOR-OF120RM 662447105818
DOR-OF140-4 26 66 7 3/4 20 8 5/8 22 9 13/16 25 5 3/4 15 18 8.2 662447105764 DOR-OF140RM 662447105825
The overall height and the height of the inlet tting varies due to material variations and assembly tolerances. Please allow additional
clearance above the tank for making connections.
1
OneFlow
®
1-OneFlow Scale Inhibiting technology tested & verified by independent laboratory testing*.
* Contact Dormont Manufacturing customer service at 800-DORMONT for details on independent test data
1-800-DORMONT • www.dormont
OF100SeriesSpec, Rev. 0, 6-09
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