Watts OF140-4 - Manual (Page 2)

Specifications
A OneFlow ® scale prevention 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 nec-
essary. 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.
Note: Copper lines need to be passivized for a minimum of 4
weeks before placing unit into service. Not for use on closed
loop systems.
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
none allowed
Oil & H2S none allowed
Polyphosphate none allowed
Silica (maximum) 10 ppm
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.
D
B
Dimensions — Weights
A
C
E
Model Dimensions Weight
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
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
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
OF140-4 26 66 7 3 ⁄
4
20 8 5 ⁄
8
22 9 13 ⁄
16
25 5 3 ⁄
4
15 18 8.2
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.
ES-OF110_120_140 1140 © 2011 Watts
USA: No. Andover, MA • Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Burlington, ON • Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.wattscanada.ca
A Watts Water Technologies Company