Watts PWDWUFKC3 PURE WATER User manual

Installation, Operation
and Maintenance Manual
Ultra Filtration Membrane Water Filtration System
Model PWDWUFKC3
IOM-WQ-PWDWUFKC3
Important
Please read the entire manual before proceeding with the
installation and startup. Your failure to follow any attached
instructions or operating parameters may lead to the product’s
failure.
Save manual for future reference.
Table of Contents
Operational Parameters...................................3
Contents of PWDWUFKC3 ................................3
Tools Recommended for Installation .........................3
Drill a Hole for the Faucet in a Porcelain Sink ...................3
Punch a Hole for the Faucet in a Stainless Steel Sink.............3
How To Use Quick-Connect Fittings For Tubing Connections ......4
Faucet Installation .......................................5
Adapt-A-Valve™ Installation ...............................5
Green Tube Connection ..................................6
UF Drinking System Module Mounting .......................6
Blue Tube Connection ....................................6
System Start up.........................................6
6-Month System Maintenance..............................7
Annual Maintenance .....................................7
Parts List / Unit Drawing ..................................8
Limited Warranty ........................................8
PWDWUFKC3
PURE WATER
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system.

2
Introduction
Thank you for your purchase of a state of the art Watts water
treatment system. Your new system is equipped with a unique
swivel valve in head assembly. This allows for a simple and sanitary
twist off filter change that does not require you to turn off the water
source to the filtration system.
This 3-Stage system is equipped with a Sediment Prefilter, a high
quality Carbon Block Filter and the Ultra Filtration Membrane.
The sediment filter reduces sand, silt, sediment and rust particles
that may be in your water. The second stage is a high quality carbon
block filter for chlorine, taste and odor reduction. The third stage is
our state of the art UF Hollow Fiber Technology membrane for the
removal of cysts like Crypto and Giardia.
Ultra filtration is a membrane filtration process which uses standard
home water pressure to push water through its semi-permeable
membrane. Suspended particles and materials of high molecular
weight are unable to pass through the 0.2 micron UF membrane,
allowing only fresh clean water and dissolved minerals to pass
through. Historically this separation process has been used in large
municipal water treatment plants and hospitals; however through
advances in technology it is now available to you as a powerful under
sink water filtration plant in your home.
Ultra filtration is capable of running at low water pressures, does not
require a separate water holding tank, does not alter the pH of your
water and does not require electricity. Due to this, the PWDWUFKC3
provides a continuous supply of premium quality drinking water
directly to your tap.
System Maintenance
Just because you cannot taste it, does not mean that it is not there.
Contaminants such as lead, chromium and arsenic (to name a few)
are undetectable to the taste. Additionally, over time if you do not
replace the filter element, other bad tastes and odors will be appar-
ent in your drinking water.
This is why it is important to change out your filter at the recom-
mended intervals as indicated in this system manual. When replacing
the filter elements, pay special attention to any cleaning instructions.
Should you have any further questions please refer to our website
at www.watts.com or call our customer service department at
1-800-244-1299.
With proper installation and maintenance, this system will provide
you with high quality water for years to come. If you have any ques-
tions or concerns, please contact our Customer Service department
at 1-800-244-1299 or refer to our on-line troubleshooting at
www.watts.com.
Service Record
Date SeDIMeNt
FILteR
(6 MONtHS)
CaRBON
BLOCk
(6 MONtHS)
UF
MeMBRaNe
(12 MONtHS)
Date SeDIMeNt
FILteR
(6 MONtHS)
CaRBON
BLOCk
(6 MONtHS)
UF
MeMBRaNe
(12 MONtHS)
Model Number:____________________Serial Number: __________________________
Date of Purchase:___________ Date of Install:______________ Installed by: ____________________________

3
Operating Temperatures Maximum 100°F (37.8°C) Minimum 40°F (4.4°C)
Operating Pressure Maximum 85psi
(6.0 kg/cm2)
Minimum 20psi
(2.80 kg/cm2)
pH Parameters Maximum 10 Minimum 5
Flow Rate 0.5 GPM @ 60psi
Operational Parameters
Do not use with water that is micro biologically unsafe or of
unknown quality without adequate disinfection before or after
the system. System is intended to be installed on the cold water
line only.
Contents of UF Under Counter System
1 Filtration System
1 Parts Bag
3 Filters - Attached
1 Faucet Assembly
If any of the items are missing please contact prior to installing.
Tools Recommended for Installation
• Small knife
• Variable Speed Drill
• 1⁄2" & 5⁄8" Open End Wrenches
• 1⁄2" Hole Punch (for stainless steel sinks)
• 1⁄2" Diamond Tip Drill Bit (for porcelain sinks)
• 1⁄8" Drill Bit
• 1⁄4" Drill Bit
• 7⁄16" Drill Bit
• Phillips Screw Driver
Drill a Hole for the Faucet in a Porcelain Sink
Note: Most sinks are predrilled with 1½" or 1¼" diameter hole
that you can use for your Drinking Water faucet. (If you are
already using it for a sprayer or soap dispenser, see Step A).
Caution: Porcelain sinks are extremely hard and can crack or
chip easily.
Use extreme caution when drilling. Watts accepts no responsi-
bility for damage resulting from the installation of faucet.
Step A – Determine desired location for
the RO faucet on your sink
and place a piece of masking
tape on over where the hole is
to be drilled. Mark the center
of the hole on the tape.
Step B – Using a variable speed drill
set on the slowest speed, drill
a 1⁄8" pilot hole through both
porcelain and metal casing
of sink at the marked center
of the desired location. Use
lubricating oil or liquid soap
to keep the drill bit cool (If drill
bit gets hot it may cause the
porcelain to crack or chip).
Step C – Using a 1⁄2" hole saw, proceed
to drill the large hole. Keep
drill speed on the slowest
speed and use lubricating
oil or liquid soap to keep the
hole saw cool during cutting.
Step D – Make sure the surroundings
of the sink are cooled before
mounting the faucet to the
sink after drilling and remove
all sharp edges.
STEP 1
Punch a Hole for the Faucet in a Stainless
Steel Sink
Note: If mounting faucet to a Stain-
less Steel Sink you will need a 1⁄2" Hole
Punch. The faucet opening should be
centered between the back splash
and the edge of the sink, ideally on the
same side as the vertical drain pipe.
Step A – Drill a ¼" pilot hole. Use a 1⁄2"
Hole Punch and an adjustable
wrench to punch the hole in
the sink.
The faucet can now be installed.
OR

4
How to use the Quick-Connect fittings on the UF Module
To make a connection, the tube is simply pushed into the fitting.
Place a piece of tape 1⁄2" from end of tube to indicate how far the
tube should be inserted. The unique patented Quick-Connect lock-
ing system holds the tube firmly in place without deforming it or
restricting flow.
Cut the tube square. It is essential that the outside diameter be free of score marks
and that burrs and sharp edges be removed before inserting into fitting.
Fitting grips before it seals. Ensure tube is pushed into the tube stop.
Push the tube into the fitting, to the tube stop. The collet (gripper) has stainless
steel teeth which hold the tube firmly in position while the O-ring provides a perma-
nent leak proof seal.
Pull on the tube to check that it is secure. It is a good practice to test the system
prior to leaving site and /or before use.
To disconnect, ensure the system is depressurized before removing the tube. Push
in collet squarely against face of fitting. With the collet held in this position, the tube
can be removed. The fitting can then be reused.

5
STEP 2
Faucet Installation
Gather and identify the faucet pieces.
Step A - Place the escutcheon chrome plate and the black rubber
washer on the faucet shank. (Parts found in faucet parts
bag).
Step B - Insert the faucet shank through the hole in sink and let it
rest on the sink top.
Step C - From the underside of the sink, slide on the location
washer, lock washer and brass nut onto the shank. Check
for orientation the tighten brass nut securely.
Step D - Locate the Blue tube from the UF module. Measure the
tube from the unit over to the faucet and cut it to the de-
sired length. Remove a brass nut, plastic sleeve and brass
insert from the parts bag. To assemble, place the brass nut
on the tube first, then the sleeve (small tapered end of the
sleeve must point to the end of tube) and then insert the
brass insert all the way into the end of the tube.
Step E - Push the assembled blue tube into the faucet until it
stops. Slide brass nut and plastic sleeve down until you
can thread nut onto the faucet. Use a wrench to securely
tighten the brass nut while continuing to push the tube into
the faucet.
PaRtS LISt FOR FaUCet
IteM DeSCRIPtION
AEscutcheon Plate
BBlack Rubber Washer
C
Black Locating Washer (use where a 1⁄2" hole is available,
reverse when mounting on stainless steel or when using
drilled hole)
DLock Washer
ENut
FBrass Insert (sleeve)
GPlastic Sleeve
H1⁄4" Compression Nut
A
B
C
D
E
F
G
H
Adapt-A-Valve™ Installation
Verify contents prior to installation:
( 1 ) - Plastic Adapt-a-Valve™ & Black Collet
( 1 ) - Brass Adapter no washer
( 1 ) - Brass Adapter with black washer
( 1 ) - White rubber washer
Water supply line to the system must be from the cold water
supply line only. Hot water will severely damage your system.
WARNING: Do not use Teflon tape with the Adapt-A-Valve™.
For 3⁄8" Configuration
For 1⁄2" Configuration
Step A - Turn off the cold water supply to the faucet by turning the
angle stop valve completely off.
Step B - Open cold water sink faucet to relieve pressure.
Step C - Choosing the configuration that fits your plumbing, at-
tach the Adapt-A-Valve™ as illustrated in the four photos
above.
STEP 3
Hot
Supply
Cold
Supply
Hot
Supply
Cold
Supply
(With Brass Fittings)
* Insert White Washer
(Without Brass Fittings)
1⁄2" Configuration

6
STEP 4 System Start Up
Step A– Turn on water supply at angle stop and open the Adapt-
A-Valve™. Turn faucet handle to the open position to start
the flow of water through the unit. Run 3 gallons of water
through the unit in order to flush out the normal black car-
bon fines (it will “sputter” until the air is purged out) from the
unit. Initially, the water may appear cloudy which is due to
tiny air bubbles and it will clear up shortly. Close the faucet
when finished.
Step B – Check for leaks. If you have any leaks, shut off the water
supply to your system, tighten any fittings / housings and
restart unit.
Check frequently over the next 24 hours to ensure no leaks are
present
Green Tube Connection
Step A – Locate green tube attached to the
Filter Module. Insert the open end
of the green 1⁄4" tube into the open
1⁄4" Quick-Connect fitting on the
Adapt-A-Valve™ making sure the
tube is pushed in all the way to the
tube stop.
Step B – Connect the green tube from the
Filter module to the Adapt-A-Valve™
that is connected to the angle stop
valve. Leave enough tube so it is not kinked and cut the
tube to the desired length.
STEP 5
UF Drinking System Module Mounting
Step A – Determine best location for
the UF Filter Module to be
mounted to allow for future
system maintenance. The
parts bag has 2 self-tapping
screws. Using an electric drill
with a Phillips bit, screw them
into the cabinet wall 6" apart
and 16" from the bottom of the
cabinet.
Note: Do not cut any UF system tubes at this time

7
Order filter by calling Watts at 1-800-224-1299
Item Needed: EDP# 7100116
Includes:
• (1) Sediment Filter • (1) Carbon Block Filter
Note: Your UF Drinking Water Module is equipped with valved
heads which will automatically turn off the water supply to each
filter when the filter is released, thus you do not need to turn off
the incoming water supply at the Adapt-A-Valve™. The faucet
must be off when filters are replaced.
Step A – Place the towel under the UF Drinking Water Module to
catch any excess water that drips out from the filters during
the changeover.
Step B – To make the removal of the
filter housings easier, the heads
& housings may be lifted up
to 90 degrees as shown in the
pictures to the right. Starting
with the sediment filter, lift the
cartridge up to 90 degrees.
Rotate the cartridge a 1⁄4turn
counterclockwise, remove and
dispose of used cartridge.
Step C – Make sure to remove the
cap off of the new replace-
ment filter. Insert the new filter
cartridge into the head and
rotate it clockwise 1⁄4turn until
it stops. Return cartridge to the
vertical position.
Step D – Repeat this procedure for the
2nd filter cartridges. When
finished, flush your tank com-
pletely once to remove any nat-
ural carbon fines from the UF
Drinking system. Check over
the next 24 hours to ensure no
leaks are present.
Photographs for reference purposes
only for Kwik-Change™ drinking water
systems. Your system may contain 2, 3,
or 4 filter cartridges.
6-Month System Maintenance
Annual Maintenance
Order filter by calling Watts at 1-800-224-1299
Item Needed: EDP# 7100118
Includes:
• (1) Sediment Filter • (1) UF Membrane
• (1) Carbon Block Filter
Note: Your UF Drinking Water module is equipped with valved
heads which will automatically turn off the water supply to each
filter when the filter is released, thus you do not need to turn off
the incoming water supply at the Adapt-A-Valve™. The faucet
must be off when filters are replaced.
Step A – Place the towel under the UF Drinking water module to
catch any excess water that drips out from the filters during
the changeover.
Step B – To make the removal of the
filter housings easier, the heads
& housings may be lifted up
to 90 degrees as shown in the
pictures to the right. Starting
with the sediment filter, lift the
cartridge up to 90 degrees.
Rotate the cartridge a 1⁄4turn counterclockwise, remove
and dispose of used cartridge.
Step C – Make sure to remove the
cap off of the new replace-
ment filter. Insert the new filter
cartridge into the head and
rotate it clockwise 1⁄4turn until
it stops. Return cartridge to the
vertical position.
Step D – Repeat this procedure for the
2nd and 3rd filter cartridges.
When finished, flush your tank
completely once to remove
any natural carbon fines from
the UF Drinking Water system.
Check over the next 24 hours
to ensure no leaks are present.
Photographs for reference purposes only for Kwik-Change™ drinking
water systems. Your system may contain 2, 3, or 4 filter cartridges.

Parts List
IteM # eDP # DeSCRIPtION
17300051 MODULE
27300034 ELBOW - 1/4" QC X 1/4" STEM (NOT SHOWN)
37300068 ADAPT-A-VALVE™
47100216 NON-AIRGAP FAUCET - BRUSH NICKEL
57300066 1/4" GREEN TUBING
67300065 1/4" BLUE TUBING
77100469 SEDIMENT FILTER
87100109 CARBON BLOCK FILTER
97100470 UF FILTER
10 7300087 TUBE INSERT (NOT SHOWN)
11 7300086 DELRIN SLEEVE (NOT SHOWN)
3-Stage Under Counter System
IOM-WQ-PWDWUFKC3 1225 EDP# 2915897 © 2012 Watts
USA: Tel. [phone] • www.watts.com
Canada: Tel. [phone] • www.watts.ca
A Watts Water Technologies Company
LIMIteD WaRRaNtY: Certain Watts Pure Water products come with a limited warranty from Watts Regulator Co. Other products may have no warranty or are covered by the original manufacturer’s
warranty only. For specic product warranty information, please visit www.watts.com or the published literature that comes with your product. Any remedies stated in such warranties are exclusive and
are the only remedies for breach of warranty. eXCePt FOR tHe aPPLICaBLe PRODUCt WaRRaNtY, IF aNY, WattS MakeS NO OtHeR WaRRaNtIeS, eXPReSS OR IMPLIeD. tO tHe FULLeSt eXteNt
PeRMItteD BY aPPLICaBLe LaW, WattS HeReBY SPeCIFICaLLY DISCLaIMS aLL OtHeR WaRRaNtIeS, eXPReSS OR IMPLIeD, INCLUDING BUt NOt LIMIteD tO tHe IMPLIeD WaRRaNtIeS OF
MeRCHaNtaBILItY aND FItNeSS FOR a PaRtICULaR PURPOSe, aND IN NO eVeNt SHaLL WattS Be LIaBLe, IN CONtRaCt, tORt, StRICt LIaBILItY OR UNDeR aNY OtHeR LeGaL tHeORY, FOR
INCIDeNtaL, INDIReCt, SPeCIaL OR CONSeQUeNtIaL DaMaGeS, INCLUDING, WItHOUt LIMItatION, LOSt PROFItS OR PROPeRtY DaMaGe, ReGaRDLeSS OF WHetHeR It WaS INFORMeD aBOUt
tHe POSSIBILItY OF SUCH DaMaGeS.
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