For Commercial Applications
ES-WQ-PWC
Job Name
Job Location
Engineer
Approval
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Series PWC
Commercial Carbon Filter Systems
Connection Sizes: 1" to 3" (25 - 80mm)
Flow Rates: Up to 129 gpm (488 lpm)
Watts Pure Water Series PWC activated carbon filters are
highly effective backwashing media filtration systems for the
removal of chlorine as well as taste, odor, and color caused by
organics, from water.
They are suitable for commercial applications with dechlorination flow rates up to 129 gpm (488 lpm) with media bed sizes
ranging from 1 to 35 cubic feet in size. If higher flow rates are
required, multiple units can be installed in parallel. The media
bed is cleaned of captured sediment by periodic backwashing and flushing. This cleaning cycle is time clock demand
initiated and can be programmed to occur at any time that is
convenient for the user. All steps of the cleaning cycle as well
as returning to service are fully automatic and do not require
manual actuation.
Watts Pure Water Series PWC activated carbon filters are
designed for point of use or point of entry applications where
dechlorinated water is required. Chlorine, an oxidizing agent,
is added to municipal water to destroy micro-organisms.
Chlorine causes the destruction of reverse osmosis membranes and polymer based ion exchange resins. Chlorine also
causes objectionable tastes and odors in certain applications.
Activated carbon in general is used for dechlorination, removal
of taste, color, and odor caused by organics, as well as trace
hydrocarbon removal from water. For applications involving
trace hydrocarbon removal or taste, color, and odor removal
due to organics, consult your Watts representative for proper
sizing and carbon system selection. Watts Series PWC activated carbon filters utilize 12x40 mesh coconut shell carbon
granules which are tailored for chlorine removal. Coconut shell
carbon media has a high micro-porosity which makes it ideally
suited for the removal of low molecular weight contaminants
such as chlorine. Another advantage of this carbon is its superior hardness, which combined with a de-dusting process in
its production, creates an exceptionally clean product with low
fines.
These systems are ideal for food and bottled water processing,
restaurant drink station water treatment, commercial ice production, soft drink water processing, reverse osmosis pretreatment, ion exchange resin pretreatment, and general dechlorination of municipal water.
Contractor
Approval
Contractor’s P.O. No.
Representative
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PURE WATER
Series
PWC10
Features
• WQA Certified fully automatic time clock initiated control valve
• Sophisticated digital electronic controls that store operating
history that can be accessed by the user
• Fully adjustable backwash and flush cycles
• Durable brass bodied control valve for years of service
• Dry contact lock out switch for remote interface is standard
• High surface area, with a minimum of 1,050 m²/g, low carbon
fines, and coconut shell carbon
• Highly corrosion resistant NSF Certified fiberglass tanks
• Durable polypropylene lower distribution system
Standards
Control Valve- WQA Certified to NSF/ANSI Std. 61
Mineral Tank- NSF Certified to ANSI Std. 44 or 61
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system.
Series
PWC15
Series
PWC20
Series
PWC30
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 without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Specifications
Watts Pure Water Series PWC activated carbon filter 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 plumbing equipment or processes requiring dechlorinated water. In installations
where the 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 filter system shall be a backwashing granular media bed
type with digital programmable time clock initiated backwash
and high capacity coconut shell carbon filter media. The car-
bon media shall be rated at 1,050 m²/g minimum surface area
and have a minimum iodine number of 1,000. The system
shall include all components necessary for proper operation.
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 30psi or exceed 125psi. Water
temperature must not fall below 34°F or exceed 110°F
(1 - 43°C).
Dimensions - Weights
Feed Water Guidelines
pH .................... 6 to 8.5
Water Pressure .......... 30psi to 125psi
(205 kPa to 8.5 bar)
Temperature ............ 34 - 110°F (1 - 43°C)
Oil and H2S ............. None Allowed
Iron ................... Less than 1 ppm
Total Chlorine ........... Less than 5 ppm
* For all other guideline information please contact your Watts representative.
E D
PWC10
C
FRONT SIDE
MODEl NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
PWC10111A10 501/8 1273 523/8 1330 561/2 1435 111/2 292 123/4 324 90 41
PWC10111B10 561/4 1429 587/16 1484 625/8 1591 12 305 123/4 324 105 48
PWC10111C10 545/8 1387 5613/16 1443 61 1549 13 330 123/4 324 117 53
PWC10111D10 673/8 1711 691/2 1765 733/4 1873 141/8 358 141/8 358 194 88
E D
PWC20
C
A
B
AB
E
PWC15
C
FRONT SIDE
MODEl NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
WC15121E10 663/8 1686 671/4 1708 723/4 1848 1515/16 405 161/8 409 254 115
PWC15121G10 70 1778 71 1803 767/16 1941 211/8 536 211/8 536 471 214
E D
PWC30
C
D
A B
AB
FRONT SIDE
MODEl NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
PWC20141H10 817/8 2079 817/8 2079 871/2 2222 247/16 620 241/8 612 735 334
PWC20141I10
833/8 2118 833/8 2118 89 2260 301/8 765 301/8 765 1432 651
FRONT SIDE
MODEl NO. DIMENSIONS WEIGHTS
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
PWC30151J10 871/4 2216 871/4 2216 100 2540 361/8 917 361/8 917 1965 893
PWC30151K10 951/4 2419 951/4 2419 1081/4 2750 44
PWC30151L10 995/8 2530 995/8 2530 1125/8 2860 503/8
1118
44 1118 3038 1381
1280
503/8 1280 3645 1657
Specifications
MINERAl TANk FlOW RATES FOR SERVICE AND BACkWASH
TANk CARBON UNDERBED SERVICE GPM BACkWASH GPM
MODEl NO. SIZE Ft
3
1/2 x 1/4 - 1/4 x 1/8 - #20 CHlORINE REDUCTION
PWC10111A10 9" x 48" 1.0 - / - / 10 lbs 3.7 GPM 4.0 GPM
PWC10111B10 10" x 54" 1.5 - / - / 10 lbs 5.5 GPM 5.0 GPM
PWC10111C10 12" x 52" 2.0 - / - / 30 lbs. 7.4 GPM 7.0 GPM
PWC10111D10 14" x 65" 3.0 - / - / 60 lbs. 11.1 GPM 10 GPM
PWC15121E10 16" x 65" 4.0 - / - / 80 lbs. 14.8 GPM 12 GPM
PWC15121G10 21" x 62" 7.0 - / - / 100 lbs 25.9 GPM 26 GPM
PWC20141H10 24" x 72" 10 - / 100 lbs / 100 lbs 37 GPM 30 GPM
PWC20141I10 30" x 72" 15 - / 200 lbs / 200 lbs 55.5 GPM 50 GPM
PWC30151J10 36" x 72" 20 - / 300 lbs / 200 lbs 74 GPM 70 GPM
PWC30151K10 42" x 72" 30 - / 400 lbs / 200 lbs 111 GPM 90 GPM
PWC30151L10 48" x 72" 35 500 lbs / 500 lbs / 500 lbs 129.5 GPM 100 GPM
Ordering Information
SPACE
MODEl NO. DESCRIPTION PIPE SIZE REQUIRED WEIGHT
W x D x H lBS kGS
PWC10111A10 1 Cubic Foot Carbon Filter with Auto Backwash 1" 10" x 11" x 60" 90 41
PWC10111B10 1.5 Cubic Foot Carbon Filter with Auto Backwash 1" 11" x 12" x 65" 105 48
PWC10111C10 2 Cubic Foot Carbon Filter with Auto Backwash 1" 13" x 14" x 65" 117 53
PWC10111D10 3 Cubic Foot Carbon Filter with Auto Backwash 1" 15" x 16" x 75" 194 88
PWC15121E10 4 Cubic Foot Carbon Filter with Auto Backwash 1.5" 17" x 18" x 75" 254 115
PWC15121G10 7 Cubic Foot Carbon Filter with Auto Backwash 1.5" 23" x 24" x 84" 471 214
PWC20141H10 10 Cubic Foot Carbon Filter with Auto Backwash 2" 27" x 27" x 95" 735 334
PWC20141I10 15 Cubic Foot Carbon Filter with Auto Backwash 2" 33" x 33" x 95" 1432 651
PWC30151J10 20 Cubic Foot Carbon Filter with Auto Backwash 3" 40" x 48" x 114" 1965 893
PWC30151K10 30 Cubic Foot Carbon Filter with Auto Backwash 3" 46" x 54" x 114" 3038 1381
PWC30151L10 35 Cubic Foot Carbon Filter with Auto Backwash 3" 52" x 60" x 114" 3645 1657
Notes: Flow rates are calculated at a 2 minute empty bed contact time (EBCT) for chlorine reduction. Do not use flow rates stated above for reduction of chloramines or
organic compounds. Chloramines reduction requires a 17-22 minute EBCT. EBCT for organic compound reduction varies by organic compound. Pipe size, tank size, and space
requirements are in inches.
A Watts Water Technologies Company
ES-WQ-PWC 1122 © 2011 Watts
USA: North Andover, MA • Tel. (800) 224-1299 • www.watts.com
Canada: Burlington, ON • Tel. (888) 208-8927 • www.wattscanada.ca
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