For Commercial Applications
ES-WQ-CWS300H
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Series CWS300H
Series CWS300H
Connection Size: 3" (80 mm)
Flow Rates: Up to 251 gpm (950 lpm)
Watts CWS300H water softening systems are highly efficient
cation exchange type water softeners. They are suitable for com-
mercial applications ranging from 60,000 to 600,000 grains of
hardness removal and flow rates up to 251 gallons per minute.
Regeneration is meter demand initiated. All cycles of regeneration
are fully automatic and do not require manual actuation.
Watts CWS300H water softeners are designed for point of use or
point of entry applications where the benefits of softened water
are required. These systems exchange scale forming calcium and
magnesium ions with non-scale forming sodium ions to create soft
water for a variety of applications. Steam boiler make up water,
water heater pretreatment, reverse osmosis pretreatment, sterilizer
make up water, washing, and process water are all common appli-
cations for the Watts CWS300H water softeners.
Softened water provides a wide variety of benefits from not intro-
ducing scale into pipes, valves, water heating equipment, heat
exchangers, and cooling towers to reducing mineral build up in
areas that see excessive splashing such as food prepara-tion
counters and sink areas. Softened water also conserves soaps
and cleaning agents by eliminating the formation of soap curd, so
your cleaners can work on cleaning not reacting with the hardness
in your water.
Features
• Third party tested fully automatic metered demand control valve
• Sophisticated digital electronic controls that store operating
history that can be accessed by the user
• Fully adjustable regeneration cycles
• Durable lead free brass bodied control valve for years of service
• Input for remote signal regeneration initiation
• WQA Certified high capacity resin
• Highly corrosion resistant NSF Certified fiberglass tanks
• Durable polypropylene lower distribution system
Standards
Control Valve- Third party tested to NSF/ANSI Std. 61
Ion Exchange Resin- WQA Certified to NSF/ANSI Std.44
Mineral Tank- NSF Certified to ANSI Std. 44 or 61
Specifications
A Watts CWS300H water softening system shall be installed on
the building’s main water line just after it enters the building. The
installation point shall be after any backflow prevention or pressure
regulating valves. Other installation options are to install a system
just before the water heater or other types of equipment needing
the protection of softened water. In installations where dedicated
cold water make up to a water heater is the installation point, a
backflow preventer and a thermal expansion tank must be installed
as well. The system shall be installed with a bypass valve to allow
for the shut down and removal of the unit without interrupting the
water supply to the building. The water softener shall be a down
flow regenerated, metered demand, sodium cycle cation exchange
type system with all components necessary for proper opera-
tion. Electrical requirements are 120 volt 60 hertz. A local drain is
required to accept drain water from the system. The feed water
pressure must not fall below 25psi or exceed 125psi. Water tem-
perature must not fall below 34°F or exceed 110°F (1 - 43°C). The
system shall provide softened water measuring less than one grain
per gallon of hardness as Calcium Carbonate when operated within
the resin manufacturer’s operational specifications.
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.
Note: Do not use with water that is microbiologically unsafe or of
unknown quality without adequate disinfection before or after the
system.
Commercial Water Softening Systems
(2 pages)
(20 pages)
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