Watts PWS15 (3-10CUFT) - Manual

For Commercial Applications
ES-WQ-PWS15
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Series PWS15
Series PWS15
Commercial Water Softening
Systems
Connection Size: 1 1 /
2
" (40 mm)
Flow Rates: Up to 55 gpm (208 lpm)
Watts Pure Water Series PWS15 water softening systems are
highly efficient conventional cation exchange type water soften-
ers. They are suitable for commercial applications ranging from
60,000 to 300,000 grains of hardness removal and flow rates
up to 55 gallons per minute. Regeneration is meter demand ini-
tiated. All cycles of regeneration are fully automatic and do not
require manual actuation.
Watts Pure Water Series PWS15 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 form-
ing sodium ions to create soft water for a variety of applica-
tions. Steam boiler make up water, water heater pretreatment,
reverse osmosis pretreatment, sterilizer make up water, wash-
ing, and process water are all common applications for the
Watts Pure Water Series PWS15 water softeners.
Softened water provides a wide variety of benefits from not
introducing 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.
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.
Features
• WQA Certified 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 brass bodied control valve for years of service
• Dry contact lock out switch for remote interface is standard
• WQA Certified high capacity resin
• Highly corrosion resistant NSF Certified fiberglass tanks
• Durable polypropylene lower distribution system
Standards
Control Valve- WQA Certified 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 Pure Water Series PWS15 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 instal-
lation 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 operation. Electrical require-
ments 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 temperature 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 manufacturers operational specifications.
PURE WATER
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system.