Kenmore 625.38156 User Manual

OWNER'S MANUAL

KGnmorG

Reverse Osmosis

System

MODEL NO. 625.381560
UltraFilter 450

Caution:
Read and follow all safety rules and operating
instructions before first use of this product.

Questions ?

Visit WWW.KenmoreWater.com

or call toll free 1-800426-9345 (M - F, 7AM - 8 PM CST)

Repair or Parts ? Call toll free 1-800-469-4663

See back cover for other Sears service numbers.

SAVE THIS MANUAL

Sears, Roebuck and Co., 3333 Beverly Road, Hoffman Estates, IL 60179 U.S.A.

PRINTED IN U.S.A.

www.KenmoreWater.com

Warranty

Installation

How It Works
Care Of
Specifications

Repair Parts

System Tested and Certified by NSF International against NSF/ANSI

Standard 42 and 58. See performance data sheet for details.

Part No.7288057 (Rev. K 9/26/08)

Warranty

ONE YEAR FULL WARRANTY ON REVERSE OSMOSIS SYSTEM

When installed, operated and maintained according to all instructions supplied with the product, if this

Reverse Osmosis System fails due to a defect in material or workmanship within one year from the date of
purchase, call 1-800-4-MY-HOME to arrange for free repair (or replacement if repair proves impossible).

This warranty does not include filter cartridges or the Reverse Osmosis membrane, which are expendable

items.

This warranty applies only while this product is in use in the United States or Canada.

This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

Sears, Roebuck and Co., Hoffman Estates, IL 60179

Dimensions

IZJ

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Table of Contents

Unpack and Check Shipment..........................................................................................................................................................................4

What Your Reverse Osmosis System Will do ...............................................................................................................................................5

Plan Your Installation..................................................................................................................................................................................5-6

Overview and Site Preparation .......................................................................................................................................................................7

Step 1-Install Supply Water Fitting ...............................................................................................................................................................8

Step 2-lnstall Reverse Osmosis Drain ......................................................................................................................................................9-10

Step 3-lnstall Reverse Osmosis Filter Assembly .........................................................................................................................................11

Step 4-lnstall Storage Tank ..........................................................................................................................................................................11

Step 5-lnstall Reverse Osmosis Faucet....................................................................................................................................................12-13

Step 6-Connect Tubes..............................................................................................................................................................................14-15

Step 7-Sanitize, Pressure Test, Purge System ........................................................................................................................................16-17

How Your Reverse Osmosis Water System Works ...............................................................................................................................18-19

Maintenance.............................................................................................................................................................................................20-21

Specifications................................................................................................................................................................................................22

Troubleshooting.......................................................................................................................................................................................24-25

Exploded View & Parts List ...................................................................................................................................................................26-27

Safety Guides

▼ Read all steps and guides carefully before installing

and using your reverse osmosis system. Follow all
steps exactly to correctly install. Reading this manual
will also help you to get all the benefits from the
reverse osmosis system.

▼ Do not attempt to use this product to make safe

drinking water from non-potable water sources. Do
not use the system on microbiologically unsafe water,
or water of unknown quality without adequate disin
fection before or after the system. This system is certi
fied for cyst reduction and may be used on disinfec
ted water that may contain filterable cysts.

▼ Check with your local public works department for

plumbing and sanitation codes. You must follow their
guides as you install the system. Follow your local
codes if they differ with guides in this manual.

▼ This system shall only be used for arsenic reduction

on chlorinated water supplies containing detectable
residual free chlorine at the system inlet. Water sys
tems using an inline chlorinator should provide a one
minute chlorine contact time before the RO system.

▼ This system is acceptable for treatment of influent

concentrations of no more than 27 mg/L nitrate and 3
mg/L nitrite in combination measured as N and is cer
tified for nitrate/nitrite reduction only for water sup
plies with a pressure of 280 kPa (40 psig) or greater.

▼ The reverse osmosis system works on water pressures

of 40 psi (minimum) to 100 psi (maximum). If your
house water pressure is over the maximum, install a
pressure reducing valve in the water supply pipe to
the reverse osmosis system.

▼ Do not install the reverse osmosis system outside, or

in extreme hot or cold temperatures. Temperature of
the water supply to the reverse osmosis system must
be between 40°F and 100°F. Do not install on hot
water.

▼ Read the other limits (pH, hardness, etc.) in the speci

fications and be sure your water supply conforms.

▼ The reverse osmosis membrane contains a preserva

tive for storage and shipment. Be sure to purge as
instructed on page 17 before using product water.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

Unpack and Check Your Carton

INSPECT SHIPMENT

Your Reverse Osmosis Drinking Water System is shipped
complete in one carton. Remove all items from your
shipping carton.
Check all items against the packing list below. Note any
items lost or damaged in shipment. Note any damage to
the shipping carton. Refer to the exploded view and
parts list in the back of the manual for the part names
and numbers of missing or damaged items. If problems
exist, refer to the website or the toll free number listed
throughout this manual.
Keep the small parts in the parts bag until you are ready
to install them.

NOTE: Codes in the state of Massachusetts require

installation by a licensed plumber and do not permit the
use of saddle valves.
If you live in the state of Massachusetts, review plumb
ing code 248-CMR of the Commonwealth of
Massachusetts before proceeding with the installation.

Flanger Brackets

Bag Assembly

Dropper

Packing List

Nitrate/Nitrite

Te.st Kit

Bag Assembly

o

Thread Sealing Tape

i' ‘I'Gi .

Saddle Valve

§

Tank

Connector

Green supply tube

Reverse Osmosis Faucet Assembly

with black and blue tubes attached

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What Your Reverse Osmosis System Will Do

Your Reverse Osmosis (RO) Drinking Water System is a
water treatment unit. It uses household water pressure to
reverse a natural physical process called osmosis. Water,
under pressure, is forced through a semi-permeable
membrane where minerals and impurities are filtered
out. Clean drinking water goes to the faucet or storage,
while minerals and impurities are sent to the drain with
RO waste water. The minerals and impurities are meas
ured in water as total dissolved solids (TDS).

The system includes replaceable pre and postfilter sedi
ment-carbon cartridges. The prefilter reduces sand, silt,
dirt, rust particles, other sediments, and chlorine from
the water supply before it can enter the RO membrane.

Plan Your Installation

PLAN YOUR INSTALLATION

It is recommended to read through the entire manual
before beginning your installation. Follow all steps exact
ly. Reading this manual will also help you get all the
benefits from your system.
Your Reverse Osmosis Drinking Water System can be
installed under a sink or in a remote location. Typical
remote sites are a laundry room or utility room. Review
the location options below and determine where you are
going to install your system.

NOTE: For best system performance, the feed water to
the system should be softened or less than 10 grains
per gallon hard.

The postfilter reduces any tastes and/or odors that may
remain in the water, after passing through the RO mem
brane, and just before going to the RO faucet. To prevent
water waste, an automatic shutoff valve closes when the
RO faucet is closed and the storage tank is full.

Your reverse osmosis system gives you a continuous
supply of sparkling clear, delicious water for drinking,
cooking and other uses. Foods will look and taste better
too. Having high quality RO product water at your fin
gertips eliminates the need to buy bottled water. The
storage tank holds over 2 gallons of RO product water
for your needs.

Tools Needed

UNDER THE SINK EOCATION

The Reverse Osmosis Filter Assembly and storage tank
are normally installed in a kitchen or bathroom sink cab
inet. See Figure 2.
A suitable drain point is needed for reject water from the
Reverse Osmosis filter.

REMOTE EOCATION

You can also locate the Reverse Osmosis Filter Assembly
and storage tank in a remote location away from the
Reverse Osmosis Faucet. You will need a nearby water
source and drain point.
See Figure 3.

CHECK SPACE REQUIREMENTS

Check size and position of items for proper installation
into location chosen.

TOOES NEEDED

Review the tools needed list. See Figure 1. Gather need
ed tools before proceeding with the installation. Read
and follow the instructions provided with any tools list
ed here.

Phillips Screwdriver

Tape Measure

Drill & Drill bits, if required

Large Adjustable Jaw Pliers or Pipe Wrench

Figure 1

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Plan Your Installation

Typical Under Sink Installation

Figure 2

Typical Remote Installation

Figure 3

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Overview and Site Preparation

OVERVIEW

There are seven easy steps to installing your Drinking
Water system. They are as follows:

STEP 1 - Install Cold Water Supply fitting
STEP 2 - Install Drain Adapter
STEP 3 - Install Reverse Osmosis Assembly
STEP 4 - Install Storage Tank
STEP 5 - Install Reverse Osmosis Faucet
STEP 6 - Connect Tubing

STEP 7 - Sanitize, Pressure Test, Purge System

These steps are explained in detail over the next few
pages.
It is recommended to read through the entire manual
before beginning your installation. Follow all steps exact
ly. Reading this manual will also help you receive and
use all the benefits your Reverse Osmosis System can
give you.

Figure 4

PREPARE SITE EOR INSTAEEATION

1. Before starting, close the hot and cold water shutoff
valves (See Figure 5).

2. Temporarily place tank and filter assembly into cabi

net. Double check position of items and space required

for proper installation.

3. Remove tank and filter from cabinet and set aside.

NOTE: You must check and comply with all local
plumbing codes.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

step 1 - Install Supply Water Fitting

CHOOSE TYPE OE WATER EITTING TO INSTATE

Locate the cold water line in the sink cabinet. It is recom
mended, but not required, that the cold water line be soft
water. You can use the saddle valve provided with your
unit to tap into the cold water line. See Fig. 5. Or you can
purchase standard pipe fittings locally such as a com
pression fitting. The fitting must provide a leak-tight
connection to the Reverse Osmosis 1/4" tube.

NOTE: Local code may dictate which type of water fit

ting is used. Consult a plumber if you are not familiar
with local codes or plumbing procedures.

NOTE: Codes in the state of Massachusetts require

installation by a licensed plumber and do not permit the
use of saddle valves.
If you live in the state of Massachusetts, review plumb
ing code 248-CMR of the Commonwealth of
Massachusetts before proceeding with the installation.

INSTATE SADDLE VALVE (Included with your package)

This fitting will be installed on the cold water pipe. The
fitting must provide a leak-tight connection to the
Reverse Osmosis 1/4" tubing.

6. Do not connect the tubing to the fitting at this time.

This will occur later in the installation.

NOTE: Once the saddle valve is installed, the nut near
the handle may need to be tightened to prevent possi
ble leaks.

Complete the following steps to install the saddle valve
assembly.

1. Review Fig. 5 and familiarize yourself with all parts of
the saddle valve. This valve will self-tap a hole in cop
per tubing or plastic pipe.

IMPORTANT: Before starting, close the hot and cold

water shutoff valves (See Pigure 5).

2. If installing on iron pipe, drill a 1/8" hole for the pierc

ing pin.

IMPORTANT: If a battery-powered hand drill is not

available and an electric drill is used, ensure that the
drill is properly grounded.

3. Place the seal on the inside of Clamp X. See Fig. 5.
Turn the valve handle all the way out.(counter-clock
wise) Be sure the piercing pin does not stick out

beyond the seal.

4. Place Clamp X and Z around the pipe. Secure in place
with two screws. Tighten both screws evenly. Do not
over tighten screws. See Fig. 5.

5. Turn the valve handle all the way in. (clockwise) This
will pierce the wall of the pipe. See Fig. 5.

Tubing

Saddle Valve Connection

(Included in package)

Figure 5

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step 2 - Install RO Under Sink

INTRODUCTION

A suitable drain point is needed for the reject water from
the Reverse Osmosis Filter. You have two options to
choose from:

• Install the Drain Adapter included with your unit

See Figures 6, 7 & 8. This is used in under the sink
installations. The drain adapter kit is installed onto
your sink drain pipe above the P-trap. See Figure 6.

• Use another existing drain in your home

This is usually used in remote location type installa
tions. The drain tube from the Reverse Osmosis Filter
runs directly to an open drain. See Figures 9 & 10.

NOTE: Local code may dictate which type of drain

installation is used. Other than local code, either drain
installation types may be used. Consult a plumber if you
are not familiar with plumbing procedures.

INSTALL DRAIN ADAPTER KIT

(Under sink Installation)

In an under the sink installation, you normally use the
P-trap drain adapter. A drain adapter kit is included in
your package. Review the drain adapter kit parts in
Figure 8. The drain adapter is always installed in the
sink drain pipe, above or ahead of the P- trap. See
Figures 6 & 8. Be sure to comply with your local plumb
ing codes. The drain adapter fits 1-1/2" sink drain pipes.
Other drain pipe fittings, purchased locally, may be
needed in addition to the adapter.

1. Slowly disassemble the sink drain pipe between the
sink P-trap and the sink tailpiece. See Figures 6 & 8.

2. Clean the sink tailpiece to assure a leak-tight fit.

3. Install drain adapter directly onto the sink tailpiece

using the ferrule and nut. Snug the nut, but do not

tighten. See Figure 7.

4. Assemble the drain tubing connector to the drain

adapter using the ferrule and nut. Snug the nut, but
do not tighten. See Figure 7.

NOTE: Locate so drain tubing from the Reverse

Osmosis faucet will make a straight run to the adapter,
without dips, loops, low spots or kinks. See Figure 8.

5. Turn the connector to about 45° (10:00 or 2:00 posi

tion). See Figure 7. Tighten the nut securely.

6. Assemble the P-trap to the drain adapter, and other

drain pipe fittings as required to complete the drain
run. See Figure 6.

NOTE: If needed, you can cut the unthreaded end of

the adapter to make it fit. Do not cut too short or the
adapter will not make a leak-tight seal with the con
necting fitting.

7. Tighten all connections, but do not over tighten plastic
connections.

Under The Sink Installation

Single trap

IMPORTANT: Locate drain adapter so when the black drain tube

from the Reverse Osmosis Faucet is installed later on,
it will make a straight run to the adapter, without
dips, loops, low spots or kinks.

Double Trap

Figure 8

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step 2 - Install RO Drain In Remote Location

Outside Faucet

(Flard Water)

Soft, Cold Water

Soft, Hot Water

Remote Location

Installation

Outside Faucet

(Flard Water)

BLUE Tubing
to Reverse
Osmosis Air
Gap Faucet

Sump

1

Airgap

1-1/2

"

:Q-

Stand pipe

INSTALL A REMOTE DRAIN POINT AND AIR GAP

Airgap 1-1/2"

Q

T

Laundry Tub

A

(Remote Location)

You can also run the drain tubing to an existing drain in
the house. A floor drain, laundry tub, standpipe, sump,
etc. are suitable drain points. See Figure 10. This type of
drain is the preferred over the p- trap drain adapter.
Check your local codes. Longer lengths of tubing (see
parts list in back of manual) may be needed.

Always be sure to provide an air gap between the end of
the hose and the drain point. This will prevent water
from backing up into the system. Airgaps are required
code in most areas.

Figure 9

Figure 10

To install a remote drain point, complete the following
steps:

1. Locate the 1/4" red tubing on the Reverse Osmosis fil
ter assembly. See Figure 9.

2. Determine if this length is long enough to reach the
drain point.

3. If not, disconnect the 1/4" red tubing and replace with
an adequate length of tubing to reach the drain point.
Refer to Step 6 later in the manual on how to discon
nect and connect tubing.

NOTE; A flow control insert is located in the red
tube. Refer to Key No. 10 on Page 26. This insert
must be saved and placed in the new length of tub-

ingi

4. Run the tubing to the drain point and secure at the
end with a bracket (purchased locally). See Figure 10.
Provide a 1-1/2" air gap between the end of the tube
and the drain. See Figure 10.

10

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step 3 - Instali RO Filter Assembly

INSTALL REVERSE OSMOSIS EIETER ASSEMBEY

The Reverse Osmosis Filter Assembly is mounted on
hanger washers. The hanger washers allow you to lift the
filter assembly from the washers without any hardware
removal. When planning your installation, you need to
leave room for changing filters. See Figure 11.

Complete the following steps to install your Reverse
Osmosis Filter Assembly:

1. Remove the cover.

2. Locate mounting slots on back of the assembly. See
Figure 11.

3. Hold the assembly up to the wall surface and mark
locations for the hanger washers. This allows room to
change filters.

4. Fasten the hanger washers to the wall using the wood
screws provided.

5. Hang assembly on washers.

6. Replace cover.

Step 4 - Install Storage Tank

INSTAEE STORAGE TANK

1. Apply thread sealing tape to the threads on the nipple
at the top of the tank (max. 2 wraps). See Figure 12.

2. Locate the tubing connector. Tighten the tubing con

nector with a wrench onto the tank nipple 7-8 turns,
being careful not to cross thread or overtighten. See

Figure 12

3. Do not connect the tube at this time. This will occur
later in the assembly.

4. Place the storage tank next to the Reverse Osmosis
Assembly. The tank can be placed upright or on its
side.

tank nipple

tubing connector

storage tank

Figure 12

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11

step 5 - Install RO Faucet

SELECT LOCATION OE REVERSE OSMOSIS EAUCET MOUNTING HOLE

You will need to select the location of the Reverse
Osmosis Faucet. You have three options to choose from:

• Use the existing sink top hole for the spray hose or
soap dispenser (Must be 1-1/4" in diameter)

• Drill a new hole in the sink

• Drill a new hole in the countertop next to the sink

1. Determine where you are going to install your Reverse
Osmosis Faucet.

2. Check to ensure the Reverse Osmosis faucet will
mount flat against the mounting surface.

3. Visually review the routing of the tubes from the
Reverse Osmosis filter assembly to the faucet. Check
to ensure there is adequate tube routing space

between the faucet and filter assembly.

4. If drilling is needed, drill a 1-1/4" diameter hole in the
mounting surface.

IMPORTANT: Drilling holes into countertops and

sinks should only be performed by a qualified installer
who is certified for drilling such materials. Drilling of
surfaces made of stone or solid surface materials such
as granite, marble, Corian™ or other plastic resin prod

ucts or sinks made of porcelain and stainless steel may

cause permanent, irreparable damage to the sink or
countertop surface.

Figure 13

INSTALL REVERSE OSMOSIS EAUCET

1. Locate and organize your RO faucet install parts. Refer
to Figure 14.

2. Mount faucet base to sink hole until the faucet base is
square against the sink surface. The rubber gasket
should be between the sink surface and the faucet

base.

3. Tighten the toggle bolts until the base is firmly mount
ed to the sink surface. Do not overtighten.

4. Locate the faucet base. The black and blue tubes are
already connected to the faucet. Insert these tubes into
the sink hole until approximately one foot of tube
length and the faucet base are left above the counter
surface. Do not bend or kink the tubes in the process.
See Figures 15 and 21.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

12

step 5 - Install RO Faucet

5. Locate the 1/4" red tubing. One end is connected to the
RO Filter assembly. See Figure 21. Locate the loose
end.
A. Route red tube through countertop to faucet.
B. Cut the loose end of the red tube square and to

length. See Figure 21.

NOTE: Tubing lengths should allow for the removal of

the assembly from the hanger washers for servicing. If
tubing lengths are shortened for neater appearance, it
may be necessary to keep the assembly on the hanger
washers for service.

C. Insert all the way onto the 1/4" faucet barb fitting on

faucet. See Figure 15.

D. Pull on the tubing to be sure it is held firmly in the

fitting.
NOTE: If you ran the red reverse osmosis drain tubing
directly to a remote drain point, disregard step 3 and
refer to instructions on page 10.

6. Mount the faucet body on to the faucet base, 1/4 turn.

FAUCET ELECTRONICS

Inside the faucet base is a battery operated 6 month
timer. See Figure 14.
An amber LED indicator is also located in the front of
the faucet base. This LED will flash continuously after 6
months has passed. This indicates that it is time to
replace the battery, prefilter and postfilter.

INSTALL BATTERY

To install battery, complete the following steps.

1. Loosen the screw on the right side of the faucet base.

See Figure 14.

2. Press the battery housing upwards from the front

faucet base until it releases from the faucet base. See
Figure 14.

3. Replace the battery (Maxell CR 2032 or equivalent).

Place battery into the holder with the positive (+) side
facing the back of the holder.

4. When the battery is first replaced it will flash six times

and turn off. This indicates the battery is fully
charged. After the six flashes the timer enters the 6
month time cycle.

NOTE: If the LED repeatedly flashes just two times, it is

not a fully charged battery and will need to be replaced.

5. Re-install the timer housing and firmly tighten the

mounting screw. See Figure 14.

Figure 15

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13

step 6 - Connect Tubes

HOW TO CUT AND CONNECT THE TUBES

Your Reverse Osmosis Water System includes push-in
fittings for quick tubing connection. Review the follow
ing instructions before connecting the tubes in the next
step.

Cut tubes to length

1. Use a sharp cutter or knife to cut the end of tubing.

Always cut the tubing square. See Figure 17.

2. Inspect the end (about 1") of the tubing to be sure

there are no nicks, scratches or other rough spots. If

needed, cut the tubing again. See Figure 17.

NOTE: Tubing lengths should allow for the removal of

the assembly from the hanger washers for servicing. If
tubing lengths are shortened for neater appearance, it
may be necessary to keep the assembly on the hanger
washers for service.

Connect tubes
NOTE: Remove protective foam plugs before connect

ing tubes (See Fig. 16). Discard foam plugs.

1. Push tubing through collet, until it engages the o-ring.

See Figure 18A. Continue pushing until the tube bot
toms out against the back of the fitting. See Figure 18B.
A common mistake is to stop pushing when the tube
engages the o-ring. This will lead to future leaks.
When a 1/4" tube is fully engaged, 11/16" of the tube

has entered the fitting. When a 3/8" tube is fully

engaged, 3/4" of the tube has entered the fitting. See
Figures 18A & 18B.

2. If using tubing other than tubing supplied with the

system, be sure it is of high quality, exact size and
roundness with a smooth surface.

Foam Plug

Push In Fitting

Remove and Discard Foam Plugs

Push In Fitting

Tube,

A

U/ ,

Y//aiim4

Jl

Cut tubing square with end of tubing round,

smooth, with no cuts, nicks or flat spots.

Tube Correctly Cut

Collet

Tube Partially Engaged With Fitting

Collet /

O-Ring

(

O-Rlng

Figure 16

Figure 17

Figure 18A

To Disconnect Tubes

1. Push the collet inward with a finger tip. See Figure 20.

2. Continue holding collet inward while pulling the tub

ing out. See Figure 20.

Fitting

O-Ring Seal

Collet

Collet and O-Ring

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14

Figure 19

A

Tube Fully Engaged With Fitting

Figure18B

Collet (Depre.s.s to

Figure 20

water supply
fitting

NOTE: Tube color.s match

Collet color.s

step 6 - Connect Tubes

NOTE: Tubing lengths should allow for the removal
of the assembly from the hanger washers for servic
ing. If tubing lengths are shortened for neater
appearance, it may be necessary to keep the assem
bly on the hanger washers for service.
NOTE: Codes in the state of Massachusetts require
installation by a licensed plumber and do not permit
the use of saddle valves. If you live in the state of
Massachusetts, review plumbing code 248-CMR of
the Commonwealth of Massachusetts before pro
ceeding with the installation.

3/8" yellow tubing

tubing
connector

Tube Connections

CONNECT YELLOW TUBE TO STORAGE TANK

1. Locate the yellow tube. One end is attached to the Reverse

Osmosis filter assembly.

2. Run the other end of the yellow tube to the fitting on top of

the storage tank. See Figure 21.

3. Cut tube square and to length. See Figure 17.

4. Do not connect at this time. This will occur in the sanitizing

step.

CONNECT GREEN TUBE TO COLD WATER
SUPPLY PIPE

1. Run one end of the 1/4" green tube to the fitting on the water

supply pipe. See Figure 21.

2. Cut tube square and to length. See Figure 17.

3. Connect to saddle valve. This is a compression fitting.

4. Run the other end of the green tube to green collet to the fit

ting on the left side of the Reverse Osmosis filter assembly.

5. Cut tube square and to length. See Figure 17.

6. Insert all the way into the fitting. See Figures 18A & 18B.

7. Pull on the tube to be sure it is held firmly in the fitting.

CONNECT RED TUBE TO REVERSE OSMOSIS
FAUCET

The red tube connection was completed in the faucet assembly
steps.

Figure 21

CONNECT BLUE TUBE TO REVERSE OSMOSIS
ASSEMBLY

1. Locate the blue tube. One end is attached to the faucet.

2. Run the other end of the 3/8" blue tube to the blue collet on
the right side of the Reverse Osmosis filter assembly.

3. Cut tube square and to length. See Figure 17.

4. Insert all the way into the fitting. See Figures 18A & 18B.

5. Pull on the tube to be sure it’s held firmly in the fitting.

CONNECT BLACK TUBE FROM REVERSE OSMOSIS
FAUCET TO DRAIN ADAPTER

1. Locate the 30" length of 3/8" black tube. One end is attached
to the faucet. Figure 21.

2. The other end needs to be attached to the black collet on the
sink drain adapter.

3. Cut this tube as needed to route in as straight of a run as
possible, without loops, dips, low spots or kinks.

4. Cut the end of the tube square. See Figure 17.

5. Insert all the way into the fitting. See Figures 18A & 18B.

6. Pull on the tube to be sure it is held firmly in the fitting.

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15

step 7 - ize, Test and Purge System

SANITIZE THE SYSTEM

Sanitizing is recommended immediately after installation
of the Reverse Osmosis system. It's also recommended
after servicing inner parts. It is important that the person
installing or servicing the system have clean hands while
handling inner parts of the system.

Complete the following steps to sanitize the system.
See Figure 22.

1. Turn off the water supply to the Reverse Osmosis sys
tem.

2. Open the Reverse Osmosis faucet. If the tank is not
already empty, allow the water to empty.

3. Locate the eyedropper that is included in package and
common household bleach (5.25%).

4. Add 3 ml. of bleach into open end of yellow tank tub
ing. Handle bleach according to bleach manufacturer's
recommendations. See Figure 22.

5. Connect yellow tank tubing to tank connector. See
Figures 12 and 22.

6. Sanitizing the system will be completed during the
pressure test and purging steps on the following page.

NOTE: The bleach must be removed from the system

before drinking the water. See purging instructions on

the next page.

16

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

step 7 - ze, Test and Purge System

PRESSURE TEST THE SYSTEM

NOTE: Complete the sanitizing procedures on the pre
ceding page before pressure testing.

To pressure test the system, complete the following
steps.

1. Turn the handle of the saddle valve counterclockwise
to open the valve. See Fig. 23.

2. Open the water supply valve to the Reverse Osmosis
System. See Figure 23.

3. Open the main water supply valve and several house
faucets. This will purge air from the house plumbing
and system. Close faucets when water runs smooth.
See Figure 23.
NOTE: If leaking occurs at the saddle valve, you may

need to tighten the saddle valve nut.

4. Pressure will start to build in the RO system in about 2

hours Carefully check all fittings and connections as

the system builds pressure. Check for water leaks. Fix
leaks if any are found. If problems exist, refer to the
troubleshooting chart or call the toll free number.
NOTE: When the system is first pressurized, water
may "spurt" from the faucet air gap hole until air is
expelled from the RO system.

Reverse

Osmosis

Faucet

Osmosis System

Figure 23

Please review the following operating features before

using your Reverse Osmosis System:

You will not have filtered water immediately. It may

take T3 hours to completely fill the storage tank and
create maximum flow from the Reverse Osmosis
faucet.

Water Pressure from the Reverse Osmosis faucet will be
less than your standard faucet.

Water will run to the drain while the Reverse Osmosis
system is producing water, even if you are not draw
ing water from the Reverse Osmosis faucet. You may

hear a small quantity of water going to the drain for a

couple of hours. Water going to the drain will auto
matically shut off when the storage tank is full.

PURGING THE SYSTEM
To purge the system, complete the following steps.

1. Open the Reverse Osmosis Faucet and let water
through the system for a 24 hour period.
NOTE: Water flow will be a slow trickle at this time.

2. Close the Reverse Osmosis faucet after the 24 hour
purging period is complete.

3. When the purging is finished, your Reverse Osmosis
system is ready for use.

NOTE: Codes in the state of Massachusetts require
installation by a licensed plumber and do not permit the
use of saddle valves.
If you live in the state of Massachusetts, review plumb
ing code 248-CMR of the Commonwealth of
Massachusetts before proceeding with the installation.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

17

How Your RO Water System Works

HOW YOUR REVERSE OSMOSIS SYSTEM

WORKS

Introduction: Your Reverse Osmosis (RO) Drinking

Water System uses your household water pressure to
force water through three filters. Minerals and impurities
are filtered out. Delicious tasting drinking water goes to
the storage tank-ready for your use. Minerals and impu
rities are sent down the drain. The following paragraphs
will explain in detail how your Reverse Osmosis
Drinking Water System works.

Prefilter: Water from the cold supply pipe enters the pre
filter. See Figure 24. The prefilter has a replaceable sedi
ment cartridge with activated carbon in its composition.
The cartridge reduces taste, odor, sand, silt, dirt, other
sediments, and up to the amount of chlorine shown in
the specifications.

Reverse Osmosis Cartridge: Filtered water flows from

the prefilter, to the Reverse Osmosis membrane car
tridge. See Figure 24. The Reverse Osmosis cartridge is a
tightly wound special membrane. The membrane
reduces the dissolved solids and organic matter. High
quality product water (about one ounce per minute) exits
the Reverse Osmosis cartridge. The product water flows
to the storage tank, postfilter or Reverse Osmosis faucet.
See Figure 24. Reject water, with the dissolved solids and
organic matter, is routed to the drain. See Figure 24.

Reverse Osmosis Faucet: The sink or countertop faucet

has a hand operated knob to access drinking water. See
Figure 24. An air-gap is built into the faucet drain water
connection to comply with plumbing codes. See Figure

24.

Faucet Electronics: Inside the faucet base is a battery

operated 6 month timer. See Figure 14. An amber LED
indicator is also located in the front of the faucet base.
This LED will flash continuously after 6 months have
passed. This indicates that it is time to replace the bat
tery, prefilter and postfilter.

Shutoff Assembly: The unit has an automatic shutoff

system to conserve water. When the storage tank has
filled to capacity, and the drinking water faucet is closed,
pressure closes the shutoff to stop flow to the drain.
After enough drinking water is used, pressure in the sys
tem drops, and the shutoff opens to allow the tank to be
refilled. See Figure 24.

Check Valve: A check valve is located in the Reverse

Osmosis manifold, above the center sump. The check
valve prevents a backward flow of product water from
the storage tank to drain. A backward flow could dam
age the Reverse Osmosis Membrane. See Figure 24.

Storage Tank: The storage tank holds product water. See

Figure 24. A diaphragm inside the tank holds water pres
surized to about 30 psi when the tank is full. This pro
vides fast flow to the Reverse Osmosis faucet. When the
tank is empty of water, it is pressurized to 5 - 7 psi.

Postfilter: Before going to the Reverse Osmosis faucet,

product water goes through the postfilter. See Figure 24.
The postfilter is an activated carbon type filter. Any
remaining tastes and odors are reduced from the prod
uct water. Clean, high quality drinking water is available
at the faucet.

Flow Control: Water flow to the drain is restricted by the

flow control. It maintains the desired flow rate to obtain
the highest quality drinking water. The flow control is
located in the end of the 1/4" red drain tubing, at the
Reverse Osmosis manifold drain port. See Figure 24.

18

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

RED

RO

MEMBRANE

YELLOW

0

Reverse Osmosis Water Flow Schematic

Water Flow Description

1. Water enters prefilter. Sand, silt and other sediments are reduced. Chlorine is also reduced.

2. Water leaves prefilter and proceeds to the Reverse Osmosis Cartridge.

3. Water enters the Reverse Osmosis membrane. Dissolved solids are reduced.

4. Processed water leaves the Reverse Osmosis Membrane and flows to the storage tank.

5. Waste water with dissolved solids leave the Reverse Osmosis membrane and flows to the drain.

6. Faucet is activated.

7. Processed water leaves the storage tank and flows to the post filter filtered to ensure fresh taste.

8. Water flows to the Reverse Osmosis faucet.

E

Figure 24

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

19

Maintenance

PREFILTER/POSTFILTER MAINTENANCE

NOTE: It is recommended to replace the battery, prefilter

and postfilter cartridges at least every 6 months of prod
uct water use. Replace more often if they begin to plug
with sediments.
The prefilter and postfilter are replaceable sediment car
tridges with activated carbon in its composition. See
Figure 25. You must periodically replace the prefilter and
postfilter cartridge. This will protect the RO membrane
from being destroyed by chlorine. It will also prevent the
filters from plugging with sediments.
You may notice a slower output of product water as the
prefilter and postfilter build up with sediments. Replace
the prefilter and postfilter cartridges when this occurs.
You should replace the battery whenever you replace the
cartridges.

RO MEMBRANE CARTRIDGE MAINTENANCE

The Reverse Osmosis cartridge is a tightly wound special
membrane. See Figure 25. The membrane reduces the

dissolved

Reverse Osmosis membrane cartridge depends mostly
on the pH and hardness of the supply water, (see specifi
cations). Cartridge life is shorter with higher pH. For
example, if supply water pH is from 6.8 to 7.7, the car
tridge may last for well over one year. However, car
tridge life may be as short as 6 months if the pH is as
high as 8.5 to 10. Higher pH weakens the cartridge mem
brane and causes pin-hole leaks. It's time to replace the
Reverse Osmosis cartridge when the production rate
and/or quality of product water drops. Product water
may begin to taste different or bad, indicating solids and
organics are passing through the Reverse Osmosis mem
brane. See Reverse Osmosis cartridge replacement.

solids and organic matter. The life of the

Prefilter

Cartridge

Postfilter
Cartridge

REVERSE OSMOSIS CARTRIDGE REPLACEMENT

Complete the following steps to replace the cartridges.

1. If possible, turn off the water supply to the RO system.

2. Remove (turn to the left) the pre filter cartridge from
the filter head to relieve pressure on the Reverse
Osmosis cartridge.

3. Remove the Reverse Osmosis cartridge.

4. Remove the postfilter cartridge.

5. Discard the cartridges in a proper manner.

6. Install new cartridges in reverse order (postfilter.
Reverse Osmosis and then prefilter). Turn cartridges to
the right to re-attach to the filter heads.

7. Remove and replace the timer battery. See Figure 14.

8. Turn on the water supply to the RO system.

9. Purge the Reverse Osmosis membrane cartridge. See
page 17 for instructions.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

20

RO Cartridge

PREFILTER/POSTFILTER CARTRIDGE
REPLACEMENT
Complete the following steps to replace the cartridges.

1. If possible, turn off the water supply to the RO system.

2. Remove the pre filter cartridge (turn to the left) from
the filter head. Then remove the post filter cartridge.

3. Discard the cartridges in a proper manner.

4. Install new cartridges in reverse order (postfilter first,
then pre filter). Turn cartridges to the right to re-attach
to the filter heads.

5. Remove and replace the timer battery. See Figure 14.

6. Turn on the water supply to the RO system.

7. Purge the Reverse Osmosis membrane cartridge. See
page 17 for instructions.

Turn to the left

to remove

Figure 25

Maintenance

FLOW CONTROL

The flow control is vital for proper operation of the
Reverse Osmosis membrane cartridge. See Figure 26. The
flow control, located in the red tube at the system hous
ing, keeps water flowing through the membrane at the
required rate. This is to ensure the system produces the
best quality product water.

Flow Control Insert

Periodically check the flow control assembly to be sure
the small hole through it is clean and unrestricted.

If the flow control assembly requires service, review the
exploded view in Figure 26. Assemble and disassemble
as shown.

CHANGE COLLET AND O-RING

1. Remove the collet and o-ring from the fitting with a
small screwdriver. Be careful not to scratch the inter

nal walls of the collet port. See Figures 27 & 28.

2. Clean collet port, lubricate and insert the o-ring seal
into the bottom of the port. See Figures 27 & 28.

3. Push the collet inward until it locks in place. See
Figures 27 & 28.

1/4" Red Tubing

Figure 26

Push o-ring seal into bottom of

port then follow with collet.

Fitting

O-Ring Seal

Collet

Change collet and o-ring

Figure 27

Collet (depress to
remove tubing)

'\

Tubing

Disconnect Tubing

CHANGE BATTERY

To change battery, complete the following steps.

1. Loosen the screw on the right side of the faucet base.
See Figure 29.

2. Press the battery housing upwards from the front
faucet base until it releases from the faucet base. See
Figure 29.

3. Replace the battery (Maxell CR 2032 or equivalent).
Place battery into the holder with the positive (+) side
facing the back of the holder.

4. When the battery is first replaced it will flash six times
and turn off. This indicates the battery is fully
charged. After the six flashes the timer enters the 6
month time cycle. If it repeatedly flashes just two
times, it is not a fully charged battery.

5. Re-install the battery housing and firmly tighten the
mounting screw. See Figure 29.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

Figure 28

Screw

Figure 29

21

Specifications

Supply water pressure limits.........................................................................................................................40-100 psi (280-689 kPa)

Supply water temperature limits..............................................................................................................................40-100 °F (5-40°C)

Maximum total dissolved solids (TDS) ..................................................................................................................................2000 ppm

Maximum water hardness @ 6.9 pH ...........................................................................................................................................10 gpg

Maximum iron, manganese, hydrogen sulfide.......................................................................................................................................0

Chlorine in water supply (max. ppm) ..................................................................................................................................................2.0

Supply water pH limits (pH).............................................................................................................................................................4-10

Product (quality) water, 24 hours '....................................................................................................................... 14.53 gal. (55 liters)

Waste water per gallon of product water' ................................................................................................................5 gal. (18.9 liters)

Percent rejection of TDS, minimum (new membrane)' ..................................................................................................................90-95

Automatic shutoff control...................................................................................................................................................................yes

Efficiency^ ....................................................................................................................................................................................9.7 %

Recovery" ......................................................................................................................................................................................19.7 %

This system conforms to NSF/ANSI 58 for the specific performance claims as verified and substantiated by test data.
'C«> Feed water supply at 50 psi, 77°F, and 750 TDS. Quality water production, amount of waste water and percent

rejection all vary with changes in pressure, temperature and total dissolved solids.
"Efficiency rating means the percentage of the influent water to the system that is available to the user as reverse

osmosis treated water under operating conditions that approximate typical daily usage.
"Recovery rating means the percentage of the influent water to the membrane portion of the system that is available

to the user as reverse osmosis treated water when the system is operated without a storage tank or when the storage
tank is bypassed.

Non-potable Water Sources: Do not attempt to use this product to make safe drinking water from non-potable water

sources. Do not use the system on microbiologically unsafe water, or water of unknown quality without an adequate
disinfection before or after the system. This system is certified for cyst reduction and may be used on disinfected
water that may contain filterable cysts.

Arsenic Reduction: This system shall only be used for arsenic reduction on chlorinated water supplies containing

detectable residual free chlorine at the system inlet. Water systems using an inline chlorinator should provide a one
minute chlorine contact time before the reverse osmosis system.

Nitrate/Nitrite Test Kit: This system is acceptable for treatment of influent concentrations of no more than 27mg/L

nitrate and 3mg/L nitrite in combination measured as N. It is certified for nitrate/nitrite reduction only for water sup
plies with a pressure of 280 kPa (40 psig) or greater. This system is supplied with a nitrate/nitrite test kit. Product
water should be monitored periodically according to the instructions provided with the test kit.

TDS Test Kits: TDS test kits are available by calling 1—800—949—8220, or check the water testing section of your local

phone directory.

Installations In The Commonwealth Of Massachusetts: The Commonwealth of Massachusetts requires installation

be performed by a licensed plumber and do not permit the use of saddle valves. Plumbing code 248—CMR of the
Commonwealth of Massachusetts must be followed in these cases.

Product Water Testing: The Reverse Osmosis System contains a replaceable treatment component critical for the

effective reduction of total dissolved solids. Product water should be tested periodically to verify that the system is
performing properly.

Replacement of the reverse osmosis component: This reverse osmosis system contains a replaceable component

critical to the efficiency of the system. Replacement of the reverse osmosis component should be with one of identical
specifications, as defined by the manufacturer, to assure the same efficiency and contaminant performance.

22

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

23

Troubleshooting

Problem: Chlorine taste and/or odor in the RO product water.
Cause: The level of chlorine in your water supply

exceeds maximum limits, and has
destroyed the Reverse Osmosis mem
brane.

Cause: The prefilter is no longer reducing

chlorine from the water supply.

Problem: Other taste and/or odor.
Cause: Postfilter expended.

Cause: Reverse Osmosis membrane cartridge

expended.

Cause: Contamination in product water storage

tank.

Cause: System contamination. Correction: Sanitize entire system. Call 1-800-426-9345 for instructions.

Problem: System makes product water too slowly.
Cause: Water supply to the Reverse Osmosis sys

tem not within specifications.

Cause: Prefilter or Reverse Osmosis mem

brane cartridges plugged with sedi
ments.

Correction: If the water supply contains more than 2.0 ppm of chlorine, addi

tional filtering of the water supply to the Reverse Osmosis is
needed. Correct this condition before doing maintenance on the
Reverse Osmosis system.

Correction: Replace the prefilter, postfilter and Reverse Osmosis membrane

cartridges. See page 20.

Correction: Replace the post filter cartridge. If taste and odor persists, replace

the prefilter cartridge and Reverse Osmosis membrane cartridge.

See page 20.

Correction: Use sanitizing procedures. Replace pre and post filter cartridge. See

pages 16 & 20.

Correction: Increase water pressure, precondition the water, etc., as needed

to conform before doing maintenance on the Reverse Osmosis
system.

Correction: Replace the prefilter cartridge. If rate does not increase, replace the

postfilter cartridge and Reverse Osmosis membrane cartridge. See

page 20.

Problem: System makes lower amount of product water than usual.
Cause: Storage tank air-charge less than

5-7 psi.

Correction: Open Reverse Osmosis faucet and drain tank until flow slows to a

drip. Keep faucet open and check tank pressure. If low, pressur
ize to 6 psi. Close faucet to refill the tank.

Problem: High total dissolved solids (TDS) in product water
Cause: Water supply to the Reverse Osmosis sys

tem not within specifications.

Correction: Increase water pressure, precondition the water, etc., as needed

to conform before doing maintenance on the Reverse Osmosis
system.

Correction: Send treated and untreated water samples to a water analysis lab

for testing. It is important to test both the treated and untreated
water to determine system performance. If the TDS Is not within
the system’s performance guidelines, replace the prefilter, post fil
ter and RO membrane cartridges.

Problem: Continual water flow to drain and no product water.
Cause: Missing flow control insert in red drain tube

Correction: Replace flow control insert. See page 21.

or its corresponding port.

24

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

Troubleshooting

Problem: Water leaking from faucet airgap hole.
Cause: Drain side of faucet airgap (3/8" biack tub

ing) plugged, restricted or incorrectly con
nected to drain point.

Problem: Faucet LED indicator light does not function after battery change.
Cause: Battery dead. Correction: Replace with new battery. See page 21.

Cause: Battery installed incorrectly. Correction: Install battery correctly. See pages 13 or 21.
Problem: Water leaks at push connect fittings

Cause: Tubing not cut square. Correction: Cut tubing square. See page 14.
Cause: Tubing not pushed in aii the 'vvay. Correction: Push tubing in aii the way. See page 14.
Cause: Tubing nicked. Correction: Remove tube from connection. Remove nicked portion by cutting

Cause: Outer tubing surface finish not smooth. Correction: Remove tube from connection. Remove problem area by cutting

Correction: Inspect and eliminate restriction or piug. Refer to instaiiation

instructions for proper drain connection. See page 9.

tube to shorter length. Re-insert in connection. See page 14.

tube to shorter length. Re-insert in connection. See page 14.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

25

26

Parts Li

Key No. Part No. Description

1 9006062 Screw (2 req’d)
2 9041700 Hanger Washer (2 req’d)
3 7115432 0-ring (2 req’d)
4 7272658 Check Valve
5 7273337 Screw (6 req’d)
6 7281330 Washer (4 req’d)
7 7273345 Automatic Shut-off Cover
8 7250876 Diaphragm Kit
9 7234325 Plunger & Spacer Ring Kit

10 7275185 Flow (Control) Insert

11 3805605

12 3857705
13 7256018 Storage Tank
14 7207938 Connector, Tank 1/4 NPT x 3/8 Quick Connect
15 7208489 Drain Adapter
16 7011272 Saddle Valve
17 7292682 Faucet, with base & electronics
18 7284508 Cover

19 7281005
20 7281013
21 7285368 Repl. Manifold Assembly (incl. Key Nos. 3 - 9, 19 & 20)

■

■

■

■

■

■

7161823
7161784
7157280
7161750
7154818 Coin Battery
7279749 Dropper

Pre & Post Filter Cartridge *
RO Membrane Cartridge +

Push-in Fitting Kit, 1/4” ♦ •
Push-in Fitting Kit, 3/8” ♦ •

Tubing, 1/4” X 20’ - white A •
Tubing, 1/4” X 100’ - white A •
Tubing, 3/8” X 20’ - white A •
Tubing, 3/8” X 100’ - white A •

* Please purchase replacement pre & post filter cartridges from the retail store where you bought your reverse

osmosis system.
+ Please call 1-800-4-MY-HOME (1-800-469-4663) to purchase replacement RO membrane cartridges.
♦ These o-rings and collets are for replacement in the manifold housing only. They do not fit the other push-in

fitting on Key No. 16.

• Not included.

A Tubing lengths for remote installations, direct replacement for colored lengths of tubing.

■ Not illustrated.

Questions? Call The Kenmore Water Line 1-800-426-9345 or visit KenmoreWater.com

27

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