OWNER’S
MANUAL
MODEL NO.
625.347001
Caution:
Read and Follow
All Safety Rules and
Operating Instructions
Before First Use of
This Product.
Revers e Os mos is
Drinking Water Sys tem
u Warranty
u How To Install
u How It Works
u Care Of
If you have questions when
installing, operating
or
maintaining your reverse
osmosis system, call this
toll--free number...
1--800--426--9345
u Repair Parts
Sears, Roebuc1k and Co., Hoffman Estates, IL 60179 U. S. A.
SAVE THIS MANUAL
PRINTED IN U.S.A.
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-- TABLE OF CONTENTS --
Where To Install the RO System . . . . . . . .
4
4
5-9
5
6
6-7
7
Installation Steps - continued
Sanitizing, Pressure Test, Purging . . . .
How the RO System Works . . . . . . . . . . .
Care of RO System . . . . . . . . . . . . . . . . . . . 11-14
Dimensions, Specifications . . . . . . . . . . . . 15
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . 16-17
Remote Installation Locations . . . . . . . . . 18
Tools and Materials Needed . . . . . . . . . . .
Installation Steps . . . . . . . . . . . . . . . . . . . .
Cold Water Supply Saddle Valve . . . . .
Drain Adapter . . . . . . . . . . . . . . . . . . . . .
Faucet . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RO Assembly . . . . . . . . . . . . . . . . . . . . . .
Storage Tank, Tubing Connections . . . .
9
10
8
-- 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 im-
purities 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 miner-
als and impurities are measured in water as total dis-
solved solids (TDS).
RO membrane. The postfilter removes any tastes
and/ or odors that may remain in the water, after
passing through the RO membrane, 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 drink-
ing, cooking and other uses. Foods will look and
taste better too. Having high quality RO product wa-
ter at your fingertips eliminates the need to buy
bottled water. The storage tank holds over 2 gallons
of RO product water for your needs.
The system includes replaceable pre and postfilter
sediment-carbon cartridges. The prefilter removes
sand, silt, dirt, rust particles, other sediments, and
chlorine from the water supply before it can enter the
-- BEFORE YOU BEGIN TO INSTALL THE RO SYSTEM --
Check Your Water Supply: The cold water supply to
the RO system must be within certain quality limits.
See the specification table on page 15. If supply water
is not within limits, the RO system can not make
product water as it should and reduced RO mem-
brane life will result.
RO and the storage tank, the system includes the
parts illustrated below, a separate length of tubing,
and this manual.
FIG. 1
RO PRODUCT
WATER FAUCET
Trained salespeople at Sears can arrange for a free
water analysis. The analysis will tell you if other wa-
ter supply treatment is needed before going to the
RO system.
WATER SUPPLY SADDLE VALVE
DRAIN
CAUTION: Chlorine in the water will destroy the
RO membrane. Most cities add chlorine to the wa-
ter supply to kill bacteria. The prefilter removes
chlorine up to the limits shown in the specifications
before it enters the RO membrane. It is important
to replace the prefilter cartridge at least every 6
months. See the RO care guide on page 14.
HANGER
ADAPTER
WASHERS &
SCREWS
TUBING
ADAPTERS
Check Parts Included: Unpack the carton and re-
move the RO system. In addition to the assembled
3
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-- WHERE TO INSTALL THE RO SYSTEM --
The RO assembly and storage tank is designed for
safety guides on page 2. You do need a nearby water
installation under the sink, usually in the kitchen or
bathroom. The RO assembly mounts on a wall sur-
face, or can lay on the cabinet floor next to the storage
tank. Hanger washers and wood screws are included
for cabinet wall mounting. The RO product water
faucet installs on the sink, or on the countertop next
to the sink (pages 6 and 7).
source and drain point (see page 18).
Water Supply: To provide supply water to the RO
system inlet, a saddle valve is included to install
(where codes permit) on a cold water pipe, page 5. Pro-
vide other pipe fittings for tubing connection, as typi-
cally shown on page 5, where saddle valves are not
allowed.
Note: Tubing lengths allow for the removal of the
assembly from the hanger washers for servicing. If
tubing lengths are shortened for neater appear-
ance, it may be necessary to keep the assembly on
the hanger washers for service.
Drain Point: A suitable drain point is needed for re-
ject water from the RO membrane. A floor drain,
laundry tub, standpipe, sump, etc., is preferred, as
shown in the remote locations drawing, page 18. A
sink p-trap drain adaptor is included to install where
codes permit, as an optional drain point (page 6).
You can also locate the RO assembly and storage tank
in any remote location from the faucet, observing
RO product
water faucet
FIG. 2
cold water
supply
drain adapter
HOT COLD
Storage
Tank
sink drain
p ---trap
RO Assembly
-- TOOLS AND MATERIALS NEEDED --
"
adjustable wrench, standard pliers, and larger
"
hand or battery powered drill with 1/ 8” bit (if
adjustable jaw pliers or pipe wrench to fit sink drain
needed for the cold water supply valve, page 5)
" electric drill and bits, if hole is needed for the RO
faucet, page 6 and 7
"
"
slotted and Phillips head screwdrivers
plumbers putty
" pipe joint compound (thread seal) or Teflon tape,
approved for use on potable water supplies
-- 6 STEPS TO INSTALL --
STEP 1: - Install Cold Water Supply Saddle Valve, or
STEP 4: - Install RO Assembly - page 7
other fittings - page 5
STEP 5: - Install Storage Tank, Make Remaining Tub-
ing Connections - page 8
STEP 2: - Install Drain Adapter - page 6
STEP 6: - Sanitizing, Pressure Testing, Purging -
STEP 3: - Install Faucet - pages 6 and 7
page 9
4
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-- STEP 1: INSTALL COLD WATER SUPPLY SADDLE VALVE --
Check and comply with local plumbing codes as you plan, then install a cold feed (supply) water fitting. The
fitting must provide a leak-tight connection to the RO 1/ 4” tubing (see FIG. 8, page 8). A typical connection,
using the included saddle valve is shown in FIG.3 - A below. An optional connection, using standard plumb-
ing fittings (not included), is shown in B.
Note: Codes in the state of Massachusetts require instal-
FIG. 3
A. WATER SUPPLY CONNECTION
(us ing included s addle valve)
lation by a licensed plumber, and do not permit the use
of the saddle valve. For installation, use plumbing
code 248-CMR of the Commonwealth of Massa-
chusetts.
pre ---drill
Check local
codes for
approval
1/8” hole
for iron pipe
nut (2) --- not req’d
with all types of
clamp Z
A. SADDLE VALVE
seal
clamp X
Note: This valve has a cutting pin and will pierce a
hole in copper tubing or plastic pipe. If installing on
iron pipe, you have to drill a 1/ 8” hole for the pierc-
ing pin. Read the following danger note and be
sure to turn off water to the pipe and to drain water
from it before drilling.
valve
clamp Z
DANGER (if drilling metal pipe): To protect your-
self from serious injury or fatal shock, use a battery
powered hand drill only to make the hole. Do not
use an electric drill.
insert
ferrule
nut
handle
use to connect
tubing, step 2,
on page 8
See note on codes
in the state of
Massachusetts,
above left.
1. Close the house main water shutoff valve and open
faucets to drain water from the sink cold water pipe.
2. Observing above note and caution, drill the 1/ 8”
diameter hole in iron pipe.
3. Looking at figure 3A, turn the valve into clamp X
and tighten (maybe already assembled). Turn the
valve handle all the way out.
4. Place the seal on the inside of clamp X as shown.
Be sure the cutting pin does not stick out beyond the
seal.
5. Place clamp X and Z around the pipe and secure in
place with 2 screws. If you predrilled a 1/ 8” hole,
align the cutting pin with it. Tighten both screws
evenly, but do not overtighten. Clamp Z will either
have threaded screw holes, or 2 nuts are included.
cold water
s hutoff
B. WATER SUPPLY
TYPICAL CONNECTION
(us ing compres s ion fitting)
6. Carefully turn the handle inward to pierce a hole
in the copper or plastic pipe.
-- parts not included --
1/4” compression
fitting
B. OPTIONAL PIPE FITTINGS (compression type
shown)
insert
Note: Be sure to turn off the water supply and open
ferrule
a low faucet to drain the pipe.
Complying with plumbing codes, install a fitting on
the kitchen cold water pipe to adapt 1/ 4” OD tubing.
A typical connection is shown in figure 3B. If
threaded fittings are used, be sure to use pipe joint
compound or Teflon tape on outside threads.
cold
water
pipe
1/4” tubing to
RO inlet (see step
2, on page 8)
5
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-- STEP 2: INSTALL DRAIN ADAPTER --
J Note: Running the drain tubing directly to a floor
FIG. 4
drain, sump, standpipe, laundry tub, etc., as shown
on page 18, is preferred. However, if that is not pos-
sible or practical, the included drain adapter installs
in the sink drain pipe, always above or ahead of the
p -trap (FIG. 4). Be sure to comply with your local
plumbing codes. Other drain pipe fittings, in addi-
tion to the adapter, may be needed.
A
B
drain
adapter
J The drain adapter fits 1-1/ 2” sink drain pipe.
J The adapter installs directly onto the sink tailpiece
as typically shown in FIG. 4 and 5.
J Locate so drain tubing from the faucet (installed in
step 1, page 8) makes a straight run to the adapter,
without dips, loops, low spots or kinks.
FIG. 5
Note: Consult a plumber if you are not familiar
with plumbing procedures.
1. Use a ferrule and nut to assemble the drain tubing
connector to the drain adapter (FIG. 5). Turn the con-
nector to about 45_ from the 12:00 position, as shown
(to 10:00 or 2:00 position as needed). Tighten the nut
securely.
sink tailpiece
nut
2. Carefully disassemble the sink drain pipe and
clean the tailpiece to assure a leak-tight fit.
ferrule
drain adapter
ferrule
3. Install the drain adapter onto the sink tailpiece,
using a ferrule and nut. Snug the nut, but do not
tighten.
black
collet
45_
45_
Note: If needed, to make fit, you can cut to shorten
the unthreaded end of the adapter. Do not cut too
short so the adapter will make a leak-tight seal with
the connecting fitting.
nut
cut, if
needed
10:00
2:00
drain tubing
connector
4. Assemble the p -trap to the drain adapter, and oth-
er drain pipe fittings as required (check codes) to
complete the drain run.
5. Tighten all connections, but do not overtighten and
break plastic fittings.
-- STEP 3: INSTALL FAUCET --
A. PREPARE MOUNTING HOLE
CAUTION: To avoid damaging a sink beyond re-
pair, consult a qualified plumber or installer for
guides to drill holes in porcelain or stainless steel.
1. Select 1 of the following places for the faucet. Be
sure it will fit flat against the surface, and there is
space underneath for tubing (see FIG. 8, page 8).
2. If drilling is needed, make the 1” to 1-1/ 4” diame-
ter hole.
' Use an existing sink top hole for a spray hose or
other faucet. A 1” to 1-1/4” diameter hole is need -
ed.
'
sink.
Drill a new hole in the countertop next to the
3. Place plumbers putty around the drilled hole (FIG.
6) to prevent water leakage around the base of the
faucet.
'
Drill a new hole in the sink top.
6
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-- STEP 3: INSTALL FAUCET (cont.)--
B. ASSEMBLE FAUCET
FIG. 6
1. If not already assembled, install the rubber washer,
spacer, flat (or lock) washer and hex nut onto the
threaded faucet stud.
insert spout
2. Apply Teflon tape to the end of the faucet stud.
Turn the tubing adapter with a blue collet onto the
stud and hand tighten, then wrench 1/ 4 turn only.
BE CAREFUL NOT TO CROSS THREAD.
faucet & spout
remove tub-
ing piece
3. Wet the o-ring seals on the faucet spout. Then, re-
move and discard the short piece of tubing from the
faucet body and insert the spout in it’s place.
tubing barb
fittings
4. CONNECT TUBING TO FAUCET AS FOLLOWS.
a. Take the separate length of 3/ 8” black tubing
and, putting end through the larger hole in the rub-
ber washer, slide end onto the larger barb fitting on
the bottom of the faucet.
rubber washer
spacer
ASSEMBLED IN
MOUNTING HOLE
Note: To soften end of tubing, hold under hot water.
b. Route 1/ 4” red tubing from RO up through the
sink hole and slide end onto the smaller barb fitting
(heat end if needed) on the faucet.
flat (or lock)
washer
steel washer
hex nut
spacer
tubing adapter
hex nut
plumbers putty
c. Route 3/ 8” blue tubing from RO up through the
sink hole and push end all the way into the tubing
adapter fitting on the bottom of the faucet. Pull on
the tubing to be sure it’s held firmly in the adapter
fitting. See pages 12 and 13 for tubing connection
instructions.
blue collet
steel washer
5. Lower the faucet into the sink or countertop hole.
hole in sink or
countertop
6. On the underside of the sink or countertop, insert
the large steel washer between the mounting hole
and the spacer on the faucet stud (see assembled
view). Then, turn the hex nut up to the spacer and
tighten. Tighten the hex nut so the faucet can not
move, but do not overtighten and break the faucet.
1/4” red tubing
from RO drain
3/8” black tubing
to drain point
3/8” blue
tubing
TUBING FROM
RO SYSTEM
hanger
washer (2)
FIG. 7
-- STEP 4: INSTALL RO
ASSEMBLY --
10-1/2”
screw (2)
10-1/2” indicators
Hang the assembly on the included hanger washers,
or lay on the cabinet floor, as desired.
1. Refer to FIG. 7 for wall mounting. Hold the assem-
bly up to the wall surface and mark locations for the
hanger washers. Indicator marks on top of the brack-
et are the needed 10-1/ 2” apart.
15-1/2”
min.
up from
floor
2. Install hanger washers at least 15-1/ 2” up from the
cabinet floor, allowing room to remove sumps from
filter heads. Wood screws are provided, or obtain
other fasteners as needed.
7
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-- STEP 5: INSTALL STORAGE TANK,
MAKE REMAINING TUBING CONNECTIONS --
1. CONNECT DRAIN TUBING, FAUCET TO
Tighten the nut with a wrench.
DRAIN ADAPTER: Referring to FIG. 8, run the loose
section (connected to faucet barb fitting) of black
3/ 8” tubing from the faucet to the drain adapter, with
a black collet, installed on page 6. Cut this tubing as
needed to route in as straight of a run as possible,
without loops, dips, low spots or kinks. Cut the end
of the tubing square. Then, push all the way into the
fitting. Pull on the tubing to be sure it’s held firmly
in the adapter fitting. See pages 12 and 13 for tubing
connection instructions.
3. Move the storage tank into place next to the RO as-
sembly. You can stand the tank upright, or lay it on
side. Apply no more than 2 wraps of Teflon tape to
the threads on the nipple at the top of the tank. Hand
tighten, then wrench 1/ 4 turn only, the other in-
cluded tubing adapter fitting with the yellow collet
onto the tank nipple. BE CAREFUL NOT TO CROSS
THREAD.
4. Run the 3/ 8” yellow tubing to the fitting installed
in step 3. Be sure the end of the tubing is cut square,
and insert all the way into the fitting. Again, pull on
the tubing to be sure it’s held firmly in the fitting.
2. CONNECT TUBING TO WATER SUPPLY: Use the
tubing insert, ferrule and nut to fasten the 1/ 4” green
tubing to the saddle valve fitting installed on page 5.
TYPICAL UNDERSINK INSTALLATION
FIG. 8
RO product
water faucet
3/8” black tubing, to
larger barb on faucet
See note on
codes in the state
of Massachusetts,
page 5.
drain adapter
sink p ---trap
water supply
HOT COLD
valve
Note: See note on page 4
regarding tubing lengths.
OPEN
yellow collet
CLOSE
insert
ferrule
nut
tubing adaptor
8
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-- STEP 6: SANITIZING, PRESSURE TESTING & PURGING --
6. If needed to clean, flush the prefilter sump with
fresh water. Then, fill with water to about 1” from the
top. Add 1.0 ounce of chlorine (ordinary 5.25%
household bleach ...Hilex, Clorox, etc.) and mix in the
water. Do not add chlorine first. Concentrated, it
will attack plastics.
SANITIZING
Sanitizing is recommended upon installation of the
RO system, and after servicing inner parts. It is im -
portant for the service person to have clean hands
while handling inner parts of the system.
CAUTION: Be sure to remove the RO membrane
and both filter cartridges as follows, before sanitiz-
ing. Chlorine will destroy the RO membrane car-
tridge.
7. Carefully replace the sump on the prefilter head
and tighten securely.
8. Slowly open the water supply to the RO.
1. Be sure the water supply to the RO is turned off,
and the RO faucet is open to relieve pressure.
9. Open the RO faucet, locking the lever upward,
against the spout.
2. Referring to FIG. 9, page 11, press inward while
turning the RO cap to the left (? ) to remove from the
bracket/ membrane housing. Remove (use pliers)
the RO cartridge from the housing. Place the car-
tridge in a clean plastic bag.
10. Allow water to circulate through the RO system
until you smell the bleach odor. Then close the faucet
and allow the RO to stand idle for 20 minutes.
11. After the 20 minutes, open the RO faucet and run
water until the bleach odor is gone.
3. Be sure the o-ring seal is in the RO cap. Replace the
RO cap and push inward while turning to the right
(? ) to lock.
12. Turn off the water supply to the RO.
13. Be sure your hands are clean. Then, repeat steps
1 - 5 and 7, only replace all cartridges.
4. Remove the postfilter sump, turning to the left.
Take the cartridge from the sump and place in the
plastic bag. Replace the sump and tighten securely.
Important: Refer to FIG. 9, page 11, and to page 12
when replacing cartridges. The prefilter (left side)
cartridge has light gray coloring, and the postfilter
(right side) has blue coloring.
5. Remove the prefilter sump and cartridge. Also
place this cartridge in the clean bag.
4. In about 2 hours, pressure will start to build in the
RO system. Then, carefully check all fittings and con-
nections for water leaks. Correct leaks if any are
found.
PRESSURE TESTING
1. Do the preceding sanitizing procedures before
pressure testing.
2. Open the water supply shutoff valve to the RO.
3. Open the main water supply valve and several
house faucets to purge air from the system. Close
faucets when water runs smooth.
Note: When the system is first pressurized, water
may ‘‘spurt’’ from the faucet airgap hole until air is
expelled from the RO system.
1. Allow the storage tank to fill for about 4 hours.
Then, open the RO faucet until the tank is empty and
flow stops.
PURGING RO MEMBRANE
Important purging instructions: The RO cartridge
contains a food grade preservative that you should
clean from it before using water from the system. The
preservative will give product water an unpleasant
taste and odor.
2. Close the RO faucet and allow the tank to fill again
for 4 hours. Then, open the RO faucet and empty
again.
Repeat steps 1 and 2 to purge the storage tank 4 times. Then, the RO system is ready to
make product water for use.
9
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-- HOW YOUR REVERSE OSMOSIS SYSTEM WORKS --
product water. Taste-free, odor-free, clean, high
quality drinking water is available for use.
PREFILTER
Water from the cold supply pipe enters the RO as-
sembly prefilter first (FIG. 8 and schematic below).
FAUCET
The prefilter has a replaceable sediment cartridge
with activated carbon in its composition. The car-
tridge (10 micron) removes sand, silt, dirt, other sedi-
ments, and up to the ppm of chlorine shown in the
specifications from the feed water. Chlorine will de-
stroy the RO membrane. Filtered, clean, chlorine-
free water flows from the prefilter, to the RO mem-
brane cartridge.
The sink or countertop faucet has a hand operated,
spring-loaded closed lever to prevent the waste of
drinking water. You can also keep the faucet open by
pushing upward on the lever and locking it against
the faucet spout.
To comply with plumbing codes, an air-gap is built
into the faucet drain water connection.
IMPORTANT: See prefilter maintenance, page 11.
SHUTOFF ASSEMBLY
To conserve water, the drinking water system has an
automatic shutoff system. When the storage tank has
filled to capacity, and the drinking water faucet is
closed, pressure closes the shutoff to stop flow into
the RO. Pressure in the storage tank is about half of
the water supply pressure. After drinking water is
used, and pressure in the system drops, the shutoff
opens to allow water flow again.
REVERSE OSMOSIS (RO) CARTRIDGE
The cartridge inside of the RO housing, is a tightly
wound, special membrane. Water is forced through
the cartridge and the membrane removes the dis-
solved solids and organic matter. High quality prod-
uct water (about 1 ounce per minute) exits the RO
housing and goes to the storage tank, or to the post-
filter and RO faucet. Reject water, with the dissolved
solids and organic matter, is routed through the flow
control and to the drain.
CHECK VALVE
A check valve (FIG. 10) is located in the outlet end of
the RO housing, opposite of the cap. The check valve
prevents a backward flow of product water from the
storage tank. A backward flow could rupture the RO
membrane.
STORAGE TANK
The storage tank holds up to 2.3 gallons of product
water. A diaphragm inside the tank keeps water
pressurized to about 30 psi, when the tank is full, to
provide fast flow from the RO faucet. The tank, when
empty, is pressurized to 5 - 7 psi.
FLOW CONTROL
Water flow through the RO membrane is regulated
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 RO housing drain port. A small cone-
shaped screen fits over the end of the flow control to
help prevent plugging with drain water sediments.
POSTFILTER
After leaving the storage tank, but before going to the
RO faucet, product water goes through the postfilter.
The postfilter is an activated carbon type filter. Any
remaining tastes and odors are removed from the
PRODUCT
WATER
FAUCET
REVERSE OSMOSIS
RED
drain flow
control
SCHEMATIC
YELLOW
air gap
RO MEMBRANE
check
valve
BLUE
PRODUCT WATER
gravity
drain
AUTOMATIC
SHUTOFF
PRODUCT
WATER
STORAGE
WATER
IN
GREEN
POSTFILTER
PREFILTER
10
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-- CARE OF YOUR REVERSE OSMOSIS SYSTEM --
To keep your reverse osmosis system operating and
making high quality water, you must make sure sup-
ply water is always within the limits shown in the
specifications. Good supply water helps to assure
longer life from the RO membrane cartridge, prefilter
and postfilter cartridges. However, each of these will
wear out in time and need replacement.
Note: The prefilter cartridge has light gray netting
and end caps. The postfilter has blue. Do not inter-
change.
*Note: Use a lubricant approved for use on a potable
water supply.
mounting
washers (2)
FIG. 9
This reverse osmosis system contains a replaceable
treatment component critical for effective removal of
total dissolved solids. The water should be tested
periodically to verify the system is performing satis-
factorily.
(RO cartridge
o--ring seals on
this end)
RO Cartridge
If the RO assembly is wall mounted, you may be able
to replace parts with the assembly left on the wall. If
not, simply lift the RO assembly from the mounting
washers and lay on the cabinet floor when replacing
the prefilter and post filter cartridges and RO mem-
brane.
prefilter
cartridge
(lt. gray)
pos tfilter
cartridge
(blue)
Note: To prevent spillage, place a container under
the RO assembly, or put the RO assembly in a con-
tainer to catch the water.
o--ring
seal
o--ring seal
RO cap
CAUTION: Before disconnecting parts, be sure to
close the water supply valve to the RO.
sump
PREFILTER AND POSTFILTER
CARTRIDGES
Turn sumps in the
direction of the arrow
to remove. Turn
opposite way to install
and tighten.
You must replace the prefilter cartridge often to pro-
tect the RO membrane from being destroyed by chlorine,
and/ or from plugging with sediments in your water
supply. If the water supply contains both chlorine
and sediments, replace the prefilter cartridge at least
every 6 months of product water use. Replace more
often than 6 months if it begins to plug with sedi-
ments.
RO MEMBRANE CARTRIDGE
The life of the RO membrane cartridge depends
mostly on the pH of the supply water to the RO sys-
tem (see specifications). Cartridge life is shorter with
higher pH. For example, if supply water pH is from 6.8
to 7.7, the cartridge may last for well over 1 year. However,
cartridge life may be as short as 6 months if the pH is as
high as 8.5 to 10. Higher pH weakens the cartridge
membrane and causes pin-hole leaks.
If the water has sediments only, with no chlorine, you
may notice a slower making of product water as the
prefilter collects the sediments. When this occurs, re-
place the prefilter cartridge. Also replace the postfilter
cartridge.
It’s time to replace the RO cartridge when the pro-
duction rate and/ or quality of product water drops.
Product water may begin to taste different or bad, in-
dicating solids and organics are passing through the
RO membrane. To be sure it is the RO cartridge, re-
place the prefilter and postfilter cartridges first.
To replace the filter cartridges (see FIG. 9):
1. Turn off the water supply and open the RO faucet
to relieve pressure.
2. Remove (turn to the left) both sumps from the filter
heads. Be careful . . .the sumps are full of water.
3. Remove and discard the inner cartridges in a prop-
er manner. Flush the insides of the sumps with fresh
water. Do not lose the large o-ring seals.
To replace the RO cartridge (see FIG. 9):
1. Turn off the water supply and open the RO faucet
to relieve pressure.
4. Insert new cartridges, and with lubricated* o-rings
in place, turn on and tighten the sumps.
continued
11
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-- CARE OF YOUR REVERSE OSMOSIS SYSTEM --
2. Press inward while turning the RO cap to the left
(? ) to remove from the bracket/ membrane housing.
5. Inspect the o-ring and collet. Replace if worn, cut
or otherwise damaged. Carefully replace into the
drain port.
3. Use a pliers, or heavy wire made into a hook, to
pull the RO cartridge from the housing.
6. Be sure the flow control is in the end of the tubing,
then push all the way into the fitting.
Note: Sanitizing is recommended after servicing in-
ner parts of the system (see page 9).
TO
FIG. 10
DRAIN
4. Install the new cartridge, end with o-ring seals in-
ward. Work back and forth to get all the way in (end
of cartridge about 1-1/ 4” in from end of housing).
flow (control) insert
1/4” tubing
5. Lubricate the RO cap o-ring seal if dry. Replace the
o-ring into the cap. Press inward on the cap while
turning to the right (? )to lock. The cap will not go on
if the RO cartridge is not fully seated inward.
screen
collet
6. Check the flow control and screen (see below).
o--ring seal
drain port
7. Purge the RO membrane cartridge following instruc-
tions on page 9.
FLOW CONTROL AND SCREEN
The flow control is vital for proper operation of the
RO membrane cartridge. The control keeps water
flow through the membrane at the needed rate to ob-
tain the best quality product water.
ball
spring
o-ring
cap
Whenever servicing the RO system, check the flow
control to be sure the small hole through it is clean
and unrestricted. Also check and clean or replace the
cone-shaped screen in front of the control. The RO
membrane cannot discharge minerals and impuri-
ties to the drain if the flow control plugs with foreign
material. If this happens, it only takes a short time for
the membrane to foul and become useless.
check
valve
To clean/replace flow control and screen (FIG. 10):
TUBING CONNECTION
(all push-in fitting locations)
1. At the drain connection, depress the collet (FIG.
11) with a finger while carefully pulling on the drain
tubing to remove.
This RO system includes push-in fittings for quick
tubing connection at most locations. If working with
the fittings, do the following.
2. Remove the flow control from the end of the drain
Connection (FIG. 11):
tubing. Be sure the center hole is clean.
1. Use a sharp cutter or knife to cut the end of tubing
square.
3. Check the drain tubing to be sure it’s clean. Then,
insert the cleaned or new flow control into the tubing.
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.
4. With a small screwdriver, carefully remove the col-
let and o-ring from the drain port. Use a small need-
le-nose pliers or tweezers to remove the screen from
the drain port. Thoroughly clean, or replace with a
new screen. Install, pointed end down.
3. Push tubing through the collet and all the way into
fitting. Full engagement is 11/ 16” for 1/ 4” tubing,
and 3/ 4” for 3/ 8” tubing.
Note: Visually check to be sure it is positioned cor-
rectly.
continued
12
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-- CARE OF YOUR REVERSE OSMOSIS SYSTEM --
AUTOMATIC SHUTOFF SERVICE
TUBING CONNECTION (continued)
If tubing is used, other than supplied with the sys-
tem, be sure it is of high quality, exact size and round-
ness with a smooth surface.
If the shutoff assembly requires service, be sure to
reassemble parts exactly as shown in FIG. 12, and to
reconnect tubing as shown on pages 10 and 16.
To Disconnect Tubing: Push the collet inward and
hold with a finger while pulling the tubing out.
Tee Fitting,
1/4” NPT x 3/8”
FIG. 12
Tube
screw (4)
Tubing correctly cut and connected
FIG. 11
collet
cut tubing square
SHUTOFF
ASSEMBLY
end of tubing round and
smooth, with no cuts,
nicks or flat spots
11/16” (1/4” tubing)
engagement
3/4” (3/8” tubing)
diaphragm
plunger
Replacing collet and
o-ring s eal
collet (depress to
remove tubing)
Push o-ring seal in to
bottom of port, then
follow with collet.
tubing
fitting
o--ring seal
collet
diaphragm
Changing Collet and O -ring (FIG. 11):
1. With a small screwdriver, remove the collet and o-
ring from the fitting.
2. Be sure the port is clean, then lubricate and insert
the o-ring seal to the bottom of the port.
Elbow fitting turns
into OUT port.
Male Connector,
1/8” NPT x 1/4” Tube
3. Push the collet inward until it locks in place.
Male Elbow,1/8”
NPT x 1/4” Tubing
tubing
CAUTION
DO NOT USE VINEGAR, OR OTHER ACID
BASED CLEANERS ON THIS RO SYSTEM. THEY
WILL DEGRADE SOME RO SYSTEM PARTS. AL-
WAYS USE SOAP AND WATER.
collet
This reverse osmosis system contains a replaceable
treatment component critical for effective removal
of total dissolved solids. The water should be
tested periodically to verify the system is perform-
ing satisfactorily.
13
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-- CARE OF YOUR REVERSE OSMOSIS SYSTEM --
REVERSE OSMOSIS SYSTEM CARE GUIDE
MODEL NO. 625.347001
1. AT LEAST every 6 months, replace the prefilter and postfilter cartridges. Clean or replace the flow control and
screen.
2. Replace the RO membrane cartridge when the percent rejection of total dissolved solids (TDS) is less than shown
in the specifications (see B, below).
If any of the following occur before the 6 months , replace as directed.
A. Slow Making of Product Water: Replace the prefilter cartridge.
C. Chlorine Taste and/or Odor: Replace the prefilter, postfilter and
If the production rate does not improve, replace the postfilter car- RO membrane cartridges.
tridge and RO membrane cartridge.
B. High Total Dissolved Solids (TDS) in Product Water: You can
get a free TDS test through some Sears retail stores or service
departments. If the store or service department does not have a
TDS meter, you can 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, postfilter and RO membrane cartridges.
OTHER TROUBLESHOOTING
PROBLEM
CAUSE
CORRECTION
Chlorine taste and/or The ppm of chlorine in your water supply If the water supply contains more than 2.0 ppm of chlorine, addi-
odor in the RO product exceeds maximum limits, and has de- tional filtering of the water supply to the RO is needed. Correct
water
stroyed the RO membrane.
this condition before doing maintenance on the RO system.
The prefilter is no longer removing chlo-
rine from the water supply.
Replace the prefilter, postfilter and RO membrane cartridges,
flow control, and screen.
Other taste and/or odor Postfilter expended.
RO membrane cartridge expended.
Replace the postfilter cartridge. If taste and odor persists, re-
place the prefilter cartridge, RO membrane cartridge, flow con-
trol, and screen.
Contamination in product water storage. Use sanitizing procedures. Replace the postfilter cartridge.
System makes product Water supply to the RO system not within Increase water pressure, precondition the water, etc., as needed
water too slowly
specifications.
to conform before doing maintenance on the RO system.
Prefilter or RO membrane cartridges Replace the prefilter cartridge. If rate does not increase, replace
plugged with sediments.
the postfilter cartridge, RO membrane cartridge, flow control,
and screen.
System makes lower Storage tank air-charge less than 5 --- 7 Open RO faucet and drain tank until flow slows to a drip. Keep
amount of product water psi.
than usual
faucet open and check tank pressure. If low, pressurize to 6 psi.
Close faucet to refill the tank.
High total dissolved sol- Water supply to the RO system not within Increase water pressure, precondition the water, etc., as needed
ids (TDS) in product wa - specifications.
to conform before doing maintenance on the RO system.
ter
RO membrane cartridge expended.
Replace the prefilter, postfilter and RO membrane cartridges,
flow control, and screen.
Water leaking from fau- Drain side of faucet airgap (3/8” tubing) Inspect and eliminate restriction or plug. Refer to installation
cet airgap hole
plugged, restricted, or incorrectly con- instructions for proper drain connection.
nected to drain point.
Continual water flow to Check valve or automatic shutoff assem- Clean, repair or replace as needed.
drain bly plugged, restricted or parts worn
Note: Sanitizing is recommended after servicing inner parts of the system(see page 9).
14
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-- DIMENSIONS and SPECIFICATIONS --
16”
15”
STORAGE
TANK
9” dia.
16”
Metric
Supply water pressure limits . . . . . . . . . . . . . . . . . . . . . . . .
Supply water temperature limits . . . . . . . . . . . . . . . . . . . . .
Maximum total dissolved solids (TDS) . . . . . . . . . . . . . . .
Maximum water hardness @ 6.9 pH . . . . . . . . . . . . . . . . .
Maximum iron, manganese, hydrogen sulfide . . . . . . . . .
Chlorine in water supply (max. ppm) . . . . . . . . . . . . . . . .
40 --- 125 psi
280 --- 860 kPa
5 --- 40°C
40 --- 100 °F
2000 ppm
10 gpg
0
2.0
Supply water pH limits (pH) . . . . . . . . . . . . . . . . . . . . . . . .
Product (quality) water, 24 hours ¬ . . . . . . . . . . . . . . . . .
Waste water per gallon of product water ¬ . . . . . . . . . . .
Percent rejection of TDS, minimum (new membrane) ¬
Storage tank capacity (max.) . . . . . . . . . . . . . . . . . . . . . . .
Automatic shutoff control . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 --- 10
6 gal.
22.7 liters
18.9 liters
5 gal.
90 --- 95
2.3 gal.
yes
8.7 liters
¬ 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.
15
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-- REPAIR PARTS --
Kenmore Reverse Osmosis Drinking Water System, Model No. 625.347001
SADDLE VALVE
See note on codes in the state
of Massachusetts, page 5
32
36
35
1
1/4” Tubing
31
30
o-ring seals
3
4
33
¬
•
29
2
28
27
DRAIN
ADAPTER
26
•
25
5
6
34
¬
21
Bracket/Membrane Housing
PUSH - IN FITTINGS
8
9
21
¬1/4”
•3/8”
o--ring seal
20
7
22
collet
8
7
11
19
18
24
17
16
15
17
9
14
13
10
11
12
23
16
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-- REPAIR PARTS --
Kenmore Reverse Osmosis Drinking Water System, Model No. 625.347001
Key
No. Number
Part
Key
No. Number
Part
Des cription of Part
Des cription of Part
1
2
3
4
5
6
7
8
9
7205350 Faucet
23
24
25
26
27
28
29
30
31
32
33
34
7205326 Storage Tank
7207920 Adaptor, 7/16”-24 x 3/8” Tubing
7185788 Screw, # 10-12 x 5/8” (8 req.)
42-34702 RO Membrane Cartridge
7177175 O-ring Seal, 1-7/8” x 2-1/8”
7174965 RO Cap
7207938 Adaptor, 1/4” NPT x 3/8” Tubing
7208366 Bracket/Membrane Housing
7133634 Check Ball
7110385 Spring
7133464 O-ring Seal, 7/16” x 5/8”
7202344 Check Valve Cap
7095030 Cone Screen
7207881 Elbow, 3/8” NPT x 3/8” Tube (2 req.)
7156535 Head (2 req.)
7170246 O-ring Seal, 3-3/8” x 3-5/8” (2 req.)
7208413 Flow (Control) Insert
7011272 Saddle Valve
10 42-34370 Filter Cart., T & O Postfilter
11
12
13
14
15
16
17
18
19
J
7156569 Sump (2 req.)
7192230 Drain Adapter
7171674 Connector, 1/8” NPT x 1/4” Tubing
7171682 Elbow, 1/8” NPT x 1/4” Tubing
7112442 Valve Top
7209566 Push-in Fitting Kit, 1/4” À®
7209574 Push-in Fitting Kit, 3/8” Á®
9006062 Screw (2 req.)
35
36
J
J
J
J
J
J
7112434 Valve Center
9041700 Hanger Washer (2 req.)
42-34334 Sump Removal Wrench ®
7014979 Plunger
7099296 Diaphragm (2 req.)
7112426 Valve Bottom
7161823 Tubing, 1/4” x 20’ - white ©
®
7161784 Tubing, 1/4” x 100’ - white © ®
7157280 Tubing, 3/8” x 20’ - white © ®
7161750 Tubing, 3/8” x 100’ - white © ®
7208112 Owners’s Manual
7030721 Screw, # 10-14 x 1-3/4” (4 req.)
7133838 Shutoff Assembly ¡
7208502 Tee, 1/4” NPT x 3/8 Tubing
7207899 Elbow, 3/8” NPT x 1/4” Tube (2 req.)
20
21
¡ includes key numbers 14 through 19
22 42-34373 Filter Cart., Sed. --- T & O Prefilter
© tubing lengths for remote installations, page 18 (not
included) Direct replacement for colored lengths of
tubing.
J
not illustrated
ÀÁ see page 16 for use locations --- Note: This o-ring
and collet are for replacement in the bracket/membrane
housing only. They do not fit the other push-in fittings,
key nos. 2, 7, 12, 13, 21 and 24.
® not included
17
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-- REMOTE LOCATION FOR REVERSE OSMOSIS SYSTEM --
REMOTE RO INSTALLATION
(s torage tank not s hown)
Possible remote locations for the RO nearby the kitchen or bathroom sink include; (1) a basement area
underneath the sink, and (2) an adjacent room or closet. Longer lengths of tubing may be needed (see parts
list on page 17).
You can run the drain tubing directly to 1 of several suitable open drain points, as shown below, bypassing
the faucet airgap and p ---trap drain. This type of drain is the preferred over the p ---trap drain adapter. Check
your local codes. Always be s ure to provide an air gap between the end of the hose and the drain point.
RO product
water faucet
Note: Tubing colors as
supplied with RO system.
3/8” blue tubing
COLD
WATER
SUPPLY
OPTIONAL DRAIN POINTS FOR REJ ECT WATER
red
red
1/4” green tubing
yellow
storage
tank
SUMP
airgap
airgap
airgap
LAUNDRY
TUB
FLOOR
DRAIN
STANDPIPE
airgap
18
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19
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OWNER’S
MANUAL
Revers e Os mos is
Drinking Water Sys tem
For the repair or replacement parts you need
MODEL NO.
Call 7 am -- 7 pm, 7 days a week
625.347001
1 -- 800 -- 366 -- PART
(1 -- 800 -- 366 -- 7278)
For in --home major brand repair s ervice
Call 24 hours a day, 7 days a week
1 -- 800 -- 4 -- REPAIR
(1 -- 800 -- 473 -- 7247)
REPAIR SERVICES
The model number of
your reverse osmosis
system is found on the
rating decal. This decal is
on the top of the bracket.
For the location of a
Sears Repair Service Center in your area
REPAIR SERVICES
When requesting service
or ordering parts, always
provide the following in-
formation:
Call 24 hours a day, 7 days a week
1 -- 800 -- 488 -- 1222
For information on purchas ing a Sears
Maintenance Agreement, or to inquire
about an exis ting Agreement
z Product Type
z Model Number
z Part Number
z Part Description
Call 9 am -- 5 pm, Monday -- Saturday
1 -- 800 -- 827 -- 6655
America’s Repair Specialists
Sears , Roebuck and Co., Hoffman Es tates , IL 60179 U.S.A.
part no. 7208112 (4/99)
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