Kenmore Water System 625347001 User Manual

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 reqd  
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 its 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 its 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 its 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 its 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 its 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 systems 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, 7F, 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 Ownerss 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  
Americas Repair Specialists  
Sears , Roebuck and Co., Hoffman Es tates , IL 60179 U.S.A.  
part no. 7208112 (4/99)  
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