Watts OF1665-75 - Manual (Page 2)

Models
Model Maximum Flow Rate
OF1465-50 50 gpm (189.3 lpm)
OF1665-75 75 gpm (283.9 lpm)
Connections
Inlet Connection 2" (50mm) PVC Union with 90° Socket
Outlet Connection 2" (50mm) PVC Socket
Replacement Media
OF1465RM Media should be replaced every 3 years
OF1665RM Media should be replaced every 3 years
Specifications
A OneFlow ® scale prevention system shall be installed on the
main water service pipe just after it enters the building, but after
other whole building water safety devices (backflow preventers
or pressure reducing valves), to effectively address water hard-
ness concerns. A system may also be installed further down-
stream to protect specific equipment or areas within a plumbing
system. The system shall be plumbed with a bypass valve to
allow isolation of tank(s) and to allow the bypass of untreated
water in the event that service or media replacement be nec-
essary. The installation area should be suitable in size for the
tank(s) to be serviced without encumbrance and sit upright on
a flat level surface.
The system must operate in an upflow manner and not require
additional water to backwash, flush, or regenerate once put into
service. The system must not require any chemical additives
and must not require electricity for operation.
Multi-tank systems shall be installed in parallel with PVC/CPVC
manifold to meet peak flow rate requirements.
Copper lines need to be passivized for a minimum of 4 weeks
before placing unit into service. Not for use on closed loop sys-
tems.
Feed Water Chemistry Requirements
pH 6.5 to 8.5
Hardness (maximum) 75 grains (1300 ppm CaCO3)
Water Pressure 15psi to 100psi (103 kPa to 6.9 bar)
Temperature 40°F to 110°F (5°C to 43°C)
Chlorine < 3ppm
Iron (maximum) 0.3 mg/l
Manganese (maximum) 0.05 mg/l
Copper None allowed
Oil & H2S None allowed
Polyphosphate None allowed
Silica (maximum) 10 ppm
Water known to have heavy loads of dirt and debris
may require pre-filtration prior to OneFlow.
Standards
Independent scientific testing has confirmed Template Assisted
Crystallization (TAC) technology provides scale reduction of over
95+%. Testing was conducted under protocol based on DVGW
W512 test to access control of scale formation.
Peak Flow Rates - Weights
OF1465 OF1665
Dry Weight 54 lbs. 31.8 kgs. 88 lbs. 30.8 kgs.
Service Weight 350 lbs. 158.8 kgs. 420 lbs. 190.6 kgs.
Maximum Flow Rate***
Models gpm lpm
OF1465-50 50 189.3
OF1665-75 75 283.9
Dimensions
The overall height and the height of the inlet fitting varies due to material variations and assembly
tolerances. Please allow additional clearance above the tank for making connections.
Model Dimensions
A B C D E
in. mm in. mm in. mm in. mm in. mm
OF1465-50 17 432 14 356 79 2006 65 1651 10 1 ⁄
4
260
OF1665-75 17 432 16 406 79 2006 65 1651 10 1 ⁄
2
267
ES-OF1465_1665 1320 © 2013 Watts
USA: Tel: (800) 224-1299 • www.watts.com
Canada: Tel: (888) 208-8927 • www.watts.ca
A Watts Water Technologies Company
NOTICE
NOTICE
WQA Certified
against NSF/ANSI
Standard 61 and 372
for Lead Free.
C D
A
E
B
Inlet
Outlet
*** Exceeding maximum flow can reduce effectiveness and void warranty.
< 5 psi pressure drop @ Maximum Flow Rate
The information above shows flow rate data for our large
single tanks (50gpm & 75gpm), high-flow applications with
OneFlow utilize multiple tanks, plumbed in parallel, to meet
flow rates from 100 gpm up to and above 1000gpm or
more. An example of a multi-tank OneFlow system is shown
below:
NOTICE