Watts PWROKC4 User Manual
Installation, Operation
and Maintenance Manual
Kwik-Change™ Reverse Osmosis System
Model PWROKC4
PURE WATER
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.
IOM-WQ-PWROKC4
PWROKC4
Table of Contents
Operational Parameters...................................3
Contents of Reverse Osmosis System........................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
Watts Top Mount Faucet Installation .........................5
Adapt-A-Valve™ Installation ...............................5
Drain Saddle Installation ..................................6
Green Tube Connection (From RO Module To The Adapt-A-Valve™) 6
Reverse Osmosis Module Mounting .........................6
Red Tube Connection (From The Faucet To The Flow Restrictor) .... 6
Check Air Pressure in the Tank .............................7
Tank Ball Valve Installation .................................7
Blue Tube Connection (From RO Module To The Tank) ...........7
Blue Tube Connection (From RO Module To The Faucet) ..........7
Start up Instructions .....................................7
6-Month System Maintenance.............................. 8
Annual Maintenance .....................................8
Membrane Replacement .................................9
Arsenic Facts...........................................9
Troubleshooting .......................................10
Parts List / Unit Drawing .................................11
Limited Warranty .......................................12
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system. Systems certified for cyst reduction may be used
on disinfected waters that may contain filterable cysts.
Introduction
Thank you for your purchase of a state of the art Watts Reverse
Osmosis (RO) water treatment system. Water quality concerns are
becoming more of a focus for the public. You may have heard about
contaminants in the drinking water, such as Arsenic, Chromium,
Cryptosporidium or Giardia. There may also be some local water
issues such as high levels of Lead and Copper. This Watts water
treatment system has been designed and tested to provide you with
high quality drinking water for years to come. The following is a brief
overview of the system.
Your Reverse Osmosis System:
Osmosis is the process of water passing through a semi-permeable
membrane in order to balance the concentration of contaminants
on each side of the membrane. A semi-permeable membrane is a
barrier that will pass some particles like clean drinking water, but not
other particles like arsenic and lead.
Reverse osmosis uses a semi-permeable membrane; however, by
applying pressure across the membrane, it concentrates contaminants (like a strainer) on one side of the membrane, producing crystal
clear water on the other. This is why RO systems produce both clean
drinking water and waste water that is flushed from the system. This
reverse osmosis system also utilizes carbon block filtration technology and can, therefore, provide a higher quality drinking water than
carbon filtration systems alone.
Your system is a 4-Stage RO which is based upon separate treatment segments within the one complete water filtration system.
These stages are as follows:
Stage 1 – Sediment filter, recommended change 6 months.
(See Page 8).
The first stage of your RO system is a five-micron sediment filter that traps sediment and other particulate matter
like dirt, silt and rust which affect the taste and appearance of your water.
Stage 2 – Carbon filter, recommended change 6 months.
(See Page 8).
The second stage contains a five-micron carbon block
filter. This helps ensure that chlorine and other materials
that cause bad taste and odor are greatly reduced.
Stage 3 - Membrane, recommended change 2-5 years.
Stage 3 is the heart of the reverse osmosis system, the
RO membrane. This semi-permeable membrane will effectively take out TDS, Sodium and heavy metals such as
arsenic, copper, and lead, as well as Cysts, such as Giardia and cryptosporidium. Because the process of making
this high quality drinking water takes time, your RO water
treatment system is equipped with a storage tank.
Stage 4 - GAC filter, recommend change 6 - 12 months.
The final stage is a granular activated carbon (GAC) filter.
This filter is used after the water storage tank and is used
as a final polishing filter.
Note: Filter & Membrane life may vary based upon local water
conditions and/or use patterns.
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 apparent in your drinking water.
This is why it is important to change out your filter at the recommended 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. All of Watts water
enhancement products are rigorously tested by independent laboratories for safety and reliability. If you have any questions or concerns,
please contact our Customer Service department at 1-800-2441299 or refer to our on-line troubleshooting at www.watts.com.
Replacement Filter Pack
MODEL FREQUENCY DESCRIPTION
PWFPK2KC4 6 Months Includes sediment and pre-carbon filters only
PWFPK4KC4 Annual Includes all filters and membrane
PWMEMKC60 2 - 5 years 60 gallon per day membrane
PWKCGAC13 Annually GAC final filter
Note: Water conditions may require more frequent cartridge replacement.
2
Operational Parameters
STEP 1
Do not use with water that is microbiologically 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.
Operating Temperatures Maximum 100°F (38°C) Minimum 40°F (4°C)
Operating Pressure
pH Parameters Maximum 11 Minimum 2
Iron Maximum 0.2 ppm
TDS (Total Dissolved Solids) < 1800 ppm
Turbidity < 5NTU
Hardness: Recommended hardness not to exceed 10 grains per
gallon or 170ppm. System will operate with hardness over 10 grains,
but the membrane life may be shortened. The addition of a water
softener may lengthen the membrane life.
Water Pressure: The operating water pressure in your home should
be tested over a 24-hour period to attain the maximum pressure.
If the incoming water pressure is above 85psi, a pressure regulator is recommended and if over 100psi, then a pressure regulator is
required.
Copper Tubing: Reverse Osmosis water should not be run through
copper tubing as the purity of the water will leach copper causing
an objectional taste in water and pin holes may form in the tubing.
Watts supplies speciality filters that can be used if copper tubing follows the Reverse Osmosis unit. Be sure to follow any state, province
or local regulations during installation.
Maximum 85psi
(6.0 kg/cm2)
Minimum 40psi
(2.80 kg/cm2)
Contents of Reverse Osmosis (RO) System
1 Tank
1 RO Module
1 Parts Bag
1 Faucet Bag
1 Manual
If any of the items are missing please contact prior to installing.
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 RO faucet. (If you are already using it
for a sprayer or soap dispenser, see Step 2).
Caution: Porcelain sinks are extremely hard and can crack or
chip easily.
Use extreme caution when drilling. Watts accepts no responsibility for damage resulting from the installation of faucet.
Step A – Determine desired location for
Step B – Using a variable speed drill
Step C – Using a 1¼" hole saw, pro-
Step D – Make sure the surroundings
the RO faucet on your sink
and place a piece of masking
tape over where the hole is to
be drilled. Mark the center of
the hole on the tape.
set on the slowest speed, drill
1
⁄8" pilot hole through both
a
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).
ceed 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.
of the sink are cooled before
mounting the faucet to the
sink after drilling and remove
all sharp edges.
OR
Tools Recommended for Installation
• 1¼" Hole Saw Bit for Faucet opening
• Round Knockout Punch for Stainless
Sinks 1¼"
• Adjustable Wrench
• Sharp Knife
1
•
⁄2" & 5⁄8" Open End Wrenches
• Phillips Screw Driver
• Needle Nose Pliers – Adjustable Pliers
• Electric Drill
1
•
⁄8" Drill Bit
1
•
⁄4" Drill Bit
3
•
⁄8" Drill Bit
Punch a Hole for the Faucet in a Stainless
Steel Sink
Note: If mounting faucet to a Stainless
Steel Sink, you will need a 1¼" Hole
Punch. The faucet opening should be
centered between the backsplash and
the edge of the sink, ideally on the
same side as the vertical drain pipe.
1
Step A – Drill a ¼" pilot hole. Use a
Hole Punch and an adjustable
wrench to punch the hole in the
sink. Change to the 1¼" Hole
Punch to enlarge the hole
The faucet can now be installed.
3
⁄2"
How to use the Quick-Connect fittings on the RO 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 Watts Quick-Connect locking
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.
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 permanent leak proof seal.
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.
Fitting grips before it seals. Ensure tube is pushed into the tube stop.
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.
4
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