OWNER'S
MANUAL
MODEL NO.
625.343400
Caution:
Read and Follow
All Safety Rules,
Installation and
Operating
Instructions
Before First Use
of This Product.
MULTI-PURPOSE
WATER FILTER
HOUSING
If you have questions
when installing and us-
ing your water filter,
housing call this toll–
free number...
♦ Safety Guides
♦ Installation
♦ Operation
♦ Cartridge Replacement
♦ Repair Parts
1 – 800 – 426 – 9345
SAVE THIS MANUAL
Sears, Roebuck and Co., Hoffman Estates, IL 60179 USA
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TABLE OF CONTENTS
Water Treatment Filter Cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Planning Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 5
Typical Installation Drawings / Tools and Materials Needed . . . . . . . . . . . . .
5
Water Filter Housing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8
Filtering All House Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
Using Compression Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using Soldered Copper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using Threaded Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
7
7
Filtering Water To One Faucet (Installing Under Sink) . . . . . . . . . . . . . . . 7 - 8
Installing Filter Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter Cartridge Life / Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
8
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
WATER TREATMENT FILTER CARTRIDGES
Filter cartridges are available (not included with water
filter housing) from Sears to remove (1) sediments, (2)
tastes and odors, (3) tastes, odors and chemical conĆ
taminants, and (4) tastes, odors and lead. To treat
slightly acid and corrosive water supplies, Sears has a
cartridge (5) to add food grade phosphates.
and Sears Item No. 42-34372: for 99% chlorine
reduction
(3) Sears Item No. 42-34365: for 99% chlorine
reduction, plus chemical contaminants
(4) Sears Item No. 42-34377: for 99% chlorine
reduction, plus 95% lead reduction
To filter sediments or tastes and odors from all house
water, locate the water filter housing on the main waĆ
ter supply pipe. You can also filter water to one fauĆ
cet. For example, install the filter under the kitchen
sink to filter the cold drinking water. Typically, taste
and odor filters are installed to filter water to 1 faucet
only. Refer to the following drawings.
Following is a list of filter cartridges available at the
time of this printing. Shop your local Sears store for
the current selection.
(1) Sediment Filter Cartridge, Sears Item No.
42-34360 (25 micron), or Item No. 42-34362 (5
micron): Sediment cartridges remove sand, silt, clay,
dirt, and other sediments from water. The 25 micron
cartridge filters larger sediments from water, and alĆ
lows higher flows at less pressure drop. The 5 micron
cartridge filters finer sediments from water, usually to
a single faucet.
meter
FILTERING ALL HOUSE WATER
CITY SUPPLY
COLD
pressure
tank
Many bad tastes and/or odors are removed from water
by an activated carbon cartridge. It is most often used
to remove chlorine taste and smell, usually to a single
faucet such as the kitchen cold.
TO WATER
HEATER
WATER
FILTER
HOUSING
WELL SUPPLY
Note: Small amounts of hydrogen sulfide (noticeable
as ``rotten egg'' odor) may be reduced by taste and
odor filters for a short time, quickly exhausting the carĆ
bon media. Consult your Sears store for proper continĆ
uous treatment.
FILTERING WATER TO ONE FAUCET
kitchen sink
WATER
FILTER
HOUSING
Sears has several taste and odor filter cartridges
available. These are:
HOT
COLD
(2) Sears Item No. 42-34370: for 95% chlorine
reduction,
continued
3
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WATER TREATMENT FILTER CARTRIDGES (cont.)
(5) Phosphate Cartridge: This cartridge adds pure
ꢀ
ADDING PHOSPHATE TO ALL HOUSE WATER
food grade phosphate into the water supply. PhosĆ
phates coat the insides of pipes, plumbing fixtures, the
water heater, etc. The coating keeps slightly acid (6.8
- 6.9 pH) and corrosive water away from the surfaces
to help prevent rusting, staining and scaling.
meter
main
shutoff
valve
CITY SUPPLY
WATER
FILTER
HOUSING
pressure
tank
Note: Acid water, below 6.8 pH, requires other water
conditioning. Have a sample of your water analyzed
by a qualified water testing laboratory and get their
recommendation for treatment. You can get a free waĆ
ter analysis at your nearest Sears store.
WELL SUPPLY
well
pump
shutoff
valve
WATER
FILTER
HOUSING
When adding phosphates to your water system, locate
the water filter housing to treat:
ꢁ
ADDING PHOSPHATE, SOFT HOT/COLD HOUSE WATER
SOFT COLD
OUTSIDE FAUCETS
HARD
WATER
- THE ENTIRE HOUSE SUPPLY ꢀ, OR
- BOTH HOT AND COLD SOFT WATER ꢁ, OR
- HOT WATERONLY ꢂ
SOFT HOT
WATER
FILTER
HOUSING
WATER
HEATER
WATER
SOFTENER
Note: If no other water conditioning units are installed,
always treat the entire house supply ꢀ.
ꢂ
ADDING PHOSPHATE, HOT HOUSE WATER ONLY
COLD
WATER
IN
HOT
WATER
FILTER
HOUSING
WATER
HEATER
PLANNING YOUR INSTALLATION
When planning your installation, first read the precedĆ
Sears has optional kits available to make installing the
water filter housing easier (see page 5). These are:
ing filter cartridge information and decide where to loĆ
cate the water filter housing. Then, use the drawings
on page 5 to guide you. There are many variables to
consider as you plan. Some of these are:
L Installation Kit, Sears Item No. 42-34346 - Includes
fittings to fit nominal 1/2" (5/8" O.D.) or 3/4" (7/8"
O.D.) copper.
n The water filter housing inlet and outlet internal
L Installation Kit, Sears Item No. 42-34347 - Includes
3/4" and 3/8" fittings, and 3/8" tubing to connect to a
single faucet.
threads are 3/4" NPT.
n existing plumbing type (copper, threaded, etc.) and
nominal size (1/2", 3/4" etc.)
L Mounting Bracket, Sears Item No. 42-34348 - priĆ
marily, for undersink installation
n tools you have, and your plumbing skills
n cost of materials needed
Make a simple sketch of your proposed installation,
and a list of plumbing materials you will need. Obtain
everything you need before starting the installation.
Be sure you have the tools required.
n space available for installing the filter housing
4
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TYPICAL INSTALLATIONS / TOOLS AND MATERIALS NEEDED
FIG. 1
INSTALLATION ON COPPER PLUMBING USING COMPRESSION FITTINGS
FILTERED
WATER
apply several
wraps of
Teflon tape
nut
brass
ferrule
optional shutoff valve
compression
adaptor
INLET
3/4” NPT
– MATERIALS AND TOOLS NEEDED –
WATER
IN
" 2 compression adaptors, 3/4” NPT x comp.
(compression end to fit existing copper pipe)
Note: Searshasaninstallationkitavailablethat
fits 1/2” (5/8” O.D.) and 3/4” (7/8” O.D.) pipe
sizes, Item No. 42–34346.
" Teflon tape
" tubing cutter
" sandpaper or emery–cloth
Note: Be sure to allow a minimum space of 1–1/2”
under the filter for removing the sump, to change the
cartridge.
" 2 wrenches, either open end or adjustable
↕
jaw, size to fit compression adaptors
SOLDERED COPPER INSTALLATION
UNDERSINK INSTALLATION
FIG. 4
FIG. 2
(FILTERING WATER TO 1 FAUCET)
(OBSERVE FIG. 1 NOTES)
adaptor,
3/4” NPT x sweat
(apply several wraps of
Teflon tape to threads)
OPTIONAL
mounting bracket,
Sears Item No.
IN
OUT
SINK
42–34348
WATER
IN
➠
➠
3/4” copper
pipe, as req’d.
optional shutoff valve
hot
cold
– MATERIALS AND TOOLS NEEDED –
(see page 6)
shutoff valve
Note: To change the
filter cartridge, you
must turn off the
THREADED INSTALLATION
OPTIONAL
FIG. 3
installation kit,
Sears Item No.
42–34347
(also see kit
above)
(OBSERVE FIG. 1 NOTES)
water.
A
nearby
shutoff valve is con-
vienent. Most sinks
already have shutoff
valves on the supply
pipes.
3/4” hex nipple (2)
WATER
IN
OUT
IN
➠
➠
3/4” nipple
optional shutoff valve
union fitting (2)
↕
Note: Be sure to allow a minimum space of
1–1/2” under the filter for removing the sump,
to change the cartridge.
3/4” pipe, as required
– MATERIALS AND TOOLS NEEDED –
(see page 7)
5
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INSTALLATION STEPS
WATER FILTER HOUSING ON HOUSE MAIN WATER PIPE, TO FILTER ALL HOUSEHOLD WATER
7. Place a nut and brass ferrule (from compression fitĆ
tings) onto both pipe ends.
A. USING COMPRESSION FITTINGS, FIG. 1
1. Apply several wraps of Teflon tape to the threads
of both compression fittings.
brass ferrule
brass ferrule
nut
2. CAREFULLY, turn the compression fittings into the
water filter head inlet and outlet and tighten. Do not
cross-thread and damage the threads. Do not overĆ
nut
8. With the inlet side of the water filter facing inĆ
coming water, spread the pipes apart and fit both
tighten and crack the head.
pipe ends into the compression fittings. Move a ferrule
and nut up to the fitting. Then, turn on and tighten the
nut. Hold the fitting with 1 wrench while tightening the
nut with the other. Repeat on the other side.
3. Remove the nut and brass ferrule from both comĆ
pression fittings and set aside. Using a tape measure
or ruler, measure the distance ``D'' as shown below.
Mark this dimension below so you do not forget.
Note: If water flow is from right to left ( ➨), be sure to
turn water filter so inlet is to the right.
fitting
➨
IN
OUT
D
"
D =
IN
OUT
Measure to shoulder inside of
fittings. Copper pipe butts
against this shoulder.
brass ferrule
nut
nut
➨ WATER FLOW ➨
9. Before turning on the water supply, remove the
sump from the filter head and install the filter cartridge
(see page 8).
IMPORTANT: The house cold water pipe is often used
to ground electrical outlets in the home. Grounding
protects you from electrical shock. The water filter
housing may have broken this ground. To restore, buy
and install a #4 copper wire across the filter, tightly
4. CAUTION: Turn off the water supply to the
main pipe. Open a high and low faucet, in the water
system, to drain the pipe.
5. On the main water pipe, where you will install the
filter, mark the dimension D. You will remove this secĆ
tion of pipe. Before you begin to cut, double-
check your measurement.
clamped at both ends as shown here.
ground
wire
IN
OUT
6. Use a tubing cutter to remove the section of pipe.
Remove all burrs and rough edges with the sandpaper
or emery-cloth.
clamp
age the water filter housing. Be sure to use the folĆ
lowing procedures to protect the water filter.
B. SOLDERED COPPER FITTINGS, FIG. 2
1. CAUTION: Turn off the water supply to the
main pipe. Open a high and low faucet, in the water
system, to drain the pipe.
MATERIALS AND TOOLS NEEDED: You will need 2
sweat adaptors, 3/4" NPTx sweat (sweat end to fit
your main water pipe), lead-free solder and flux,
soldering torch, Teflon tape, sandpaper or
emery-cloth, open end (to fit sweat adaptor) or
adjustable jaw wrench.
2. On the main water pipe, where you will install the
filter, use a tubing cutter to remove a section of pipe
about 12" long. Use sandpaper or emery-cloth to thorĆ
oughly clean, and remove all burrs and rough edges,
from both pipe ends.
CAUTION: Heat created when soldering can damĆ
6
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INSTALLATION STEPS (cont.)
WATER FILTER HOUSING ON HOUSE MAIN WATER PIPE, TO FILTER ALL HOUSEHOLD WATER
Note: When soldering, use lead-free solder and flux
only. Be sure pipe and fittings are properly cleaned.
Observe caution note in opposite column.
measure or ruler, measure the distance ``D'' as shown
below. Mark this same dimension on a length of copĆ
per pipe. Cut the length of pipe.
3. Solder a sweat adaptor onto 1 of the pipe ends.
D
4. Place, but do not solder, a straight connector onto
the other pipe end.
IN
OUT
sweat adaptor
straight connector
5. Remove the sump from the filter head and set the
sump aside.
D
6. After it cools, apply several wraps of Teflon tape to
the threads on the sweat adaptor fitting.
9. Remove the sweat adaptor fitting from the filter
head and solder to the cut length of pipe.
7. Carefully, turn the filter head INLET (if water flow
is from the left) onto the sweat adaptor fitting. If water
flow is from the right, turn the outlet side of the head
onto the fitting. Do not cross-thread, or over-
tighten and crack the filter head.
10. After it cools, apply several wraps of Teflon tape
to the threads on the sweat adaptor fitting. Apply flux
and place the pipe end of the soldered assembly into
the straight connector. Then, turn the adaptor end into
the filter head and tighten.
filter head
apply Teflon tape
OUT
IN
11. Solder both sides of the straight connector.
12. Before replacing the sump and turning on the
water supply, install the filter cartridge (see page 8).
sweat adaptor
➨ WATER FLOW ➨
Note: Read the grounding information on page 6,
and comply with the instructions if required to mainĆ
tain continuity.
8. Turn a sweat adaptor fitting into the other side of
the filter head and hand tighten only. Using a tape
H Do not turn pipe or fittings to tightly into the filter
C. THREADED PIPE AND FITTINGS, FIG. 3
head or you may break it.
H It is important to have some linear movement in the
house main water pipe. This will allow you to tighten
union fittings, without damaging the filter head, if
pipe lengths are not exact.
MATERIALS AND TOOLS NEEDED: For threaded pipe
installation, you will need a pipe threading tool, pipe
wrenches, pipe joint compound, union fittings and
pipe nipples. Connect the filter housing as typically
shown in FIG. 3, page 5. Observe the following:
Note: Read the grounding information on page 6,
and comply with the instructions if required to mainĆ
tain continuity.
H Use pipe joint compound on all external threads.
7
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INSTALLATION STEPS (cont.)
WATER FILTER HOUSING UNDERSINK, TO FILTER WATER TO 1 FAUCET
REFER TO FIG. 4, PAGE 5. If optional kits are used,
follow instructions included with them.
4. Use the plumbing procedures on page 6 if using
compression fittings. Follow procedures on pages 6
and 7 for sweat copper and threaded pipe installation.
Be sure water flow is into the filter inlet side, and
from the outlet side, to the faucet.
1. Close the cold water side shutoff valve. (Usually,
there already is a shutoff under the sink. If not, close
the main water shutoff valve near the water meter or
pressure tank.)
Note: A grounding jumper wire is not required.
2. Cut and remove a section of the cold water pipe.
5. Before turning on the water supply, remove the
sump from the filter head and install the filter cartridge
(see below).
3. If plumbing with flexible tubing, hang or support
the filter housing in some manner (the optional
mounting bracket is preferred). If using rigid pipe, be
sure to allow a minimum of 1-1/2" clearance under
the filter for sump removal when changing the filter
cartridge.
FILTER CARTRIDGE INSTALLATION
TURN TO PAGE 9 AND FOLLOW ALL STEPS UNDER ``FILTER CARTRIDGE REPLACEMENT''.
8
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FILTER CARTRIDGE / USEFUL LIFE / REPLACEMENT
Taste and Odor Cartridges: Filtering water to a
FILTER CARTRIDGE LIFE
single faucet, the filter cartridge may last for 6 months
or more. Cartridge life is less when filtering all house
water. If the cartridge is also for lead or chemical conĆ
taminant removal, it is more important to replace it freĆ
quently.
Several variables determine how long a cartridge will
last. These include:
1. where the water filter is installed (filtering all house
water, or just to 1 faucet)
2. how much water you use
Phosphate Cartridge: The cartridge is filled with
pure food grade phosphate crystals. The crystals slowĆ
ly dissolve, and the phosphates coat the insides of the
plumbing. This coating keeps the slightly acid or corĆ
rosive water away from the inside surfaces to help
stop rusting, staining and scale.
3. how much sediment, taste and/or odor, or other unĆ
wanted substance, is in the water
Use the following information as a guide. However,
no matter which type of cartridge you are using, you
will know it is time to replace it when you first noĆ
tice the return of the unwanted substance in your
water.
In addition to the previously mentioned variables, waĆ
ter temperature, hardness and pH are all factors in
how fast the crystals dissolve. After 4 or 5 months,
check the cartridge to see how many crystals remain.
Replace the cartridge, or refill with crystals if needed
(see page 11). Otherwise, check the cartridge again afĆ
ter several more months. After checking a few times,
you will know about how fast the crystals are disĆ
solved, and the frequency replacement of the carĆ
tridge or crystals is needed.
Sediment Cartridges: Cartridge life, when filtering
water to 1 faucet, is about 6 months maximum. CarĆ
tridge life is less when filtering all house water. This
time varies depending on the type of sediment carĆ
tridge.
Filtering sediments, you will know it's time to replace
the cartridge when water pressure drops to the single
faucet, or to the entire house supply.
FILTER CARTRIDGE REPLACEMENT
CAUTION: Never remove the sump with water
pressure in the filter.
Note: A special wrench is available from Sears for reĆ
moving the sump. See the parts list on page 11.
1. Close the nearest shutoff valve on the water
supply pipe to the filter. Press the vent valve on
the top of the head to relieve pressure in the filter
(or open a nearby filtered water faucet). It is normal
for some water to leak out when pressing the vent
valve.
3. Be sure the inside of the sump is clean. Cleaners are
available from Sears (see the parts list on page 11), or
use hot, soapy water.
4. Remove the wrapper from the new filter cartridge
and insert the filter cartridge in the sump. Some carĆ
tridges fit either way, while others fit only one way.
Observe markings on the cartridge, or on the wrapper.
2. Turn the sump off of the filter head, to the left or
clockwise. Be careful, the sump is full of water. Do not
lose the large o-ring seal.
5. Lightly lubricate the o-ring seal, in the sump, with
silicone grease or Vaseline. Be sure it is fully seated in
the groove.
vent valve
head
6. Hold the sump up to the filter head, aligning the
center hole in the cartridge with the protrusion on the
bottom of the head.
sump
continued
TURN
SUMP
CLOCKWISE
TO REMOVE
9
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FILTER CARTRIDGE / USEFUL LIFE / REPLACEMENT (cont.)
Note: If the sump will not tighten up to the head, you
may have the cartridge in upside down. Take the carĆ
tridge out and check for correct orientation.
7. Being careful not to cross-thread, turn the sump
onto the filter head and tighten securely.
8. Partially open a house faucet on the outlet side of
the filter housing. Then, slowly open the water supĆ
ply shutoff valve and allow the filter housing to fill.
While it is filling, press the filter vent valve to release
air in the filter.
vent valve
head
o–ring
seal
cartridge
9. Close the house faucet. Then, check for leaks beĆ
tween the sump and the head.
sump
TURN
SUMP
Note: If leaking, turn off the water supply and depresĆ
surize the filter. Then, disassemble the filter and check
the o-ring for cuts, flat spots, etc., and sealing surfaces
for foreign material. Relubricate the o-ring with siliĆ
cone grease or Vaseline and carefully press into the
groove in the sump.
COUNTER-
CLOCKWISE
TO TIGHTEN
10
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REPAIR PARTS
Kenmore Multi–Purpose Water Filter Housing, Model No. 625.343400
1
2
3
4
KEY
NO. NUMBER
PART
DESCRIPTION
1
7160445 Head Assembly (with vent valve)
7164936 Vent Assembly
2
3
42–34345 O–ring, 3–7/8” I.D. x 4–1/8” O.D.
7156551 Sump
4
z
v
v
v
v
v
v
v
v
v
v
v
7182219 Owners Manual
42–34360 Sediment Cartridge, 25 micron
42–34362 Sediment Cartridge, 5 micron
42–34370 Taste & Odor Cartridge, 95% chlorine reduction
42–34372 Taste & Odor Cartridge, 99% chlorine reduction
42–34365 Taste & Odor / Chemical Contaminate Cartridge
42–34377 Taste & Odor / Lead Cartridge
42–3453 Phosphate Crystal Cartridge
42–3443 Repl. Phosphate Crystals
42–34330 Sump Cleaning Kit
42–34331 Sump Cleaning Solution
42–34334 Sump Removal Wrench
z
not illustrated
v
available options from Sears at the time of this printing, not illustrated,
and not included with the Water Filter Housing
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MULTI-PURPOSE
WATER FILTER
HOUSING
OWNERS
MANUAL
For the repair or replacement parts you need
MODEL NO.
Call 7 am – 7 pm, 7 days a week
625.343400
1 – 800 – 366 – PART
(1 – 800 – 366 – 7278)
For in–home major brand repair service
Call 24 hours a day, 7 days a week
1 – 800 – 4 – REPAIR
(1 – 800 – 473 – 7247)
The model number of
your water filter housing
is found on the rating de-
cal, on the filter sump.
For the location of a
Sears Repair Service Center in your area
Call 24 hours a day, 7 days a week
When requesting service
or ordering parts, always
provide the following in-
formation:
1 – 800 – 488 – 1222
For information on purchasing a Sears
Maintenance Agreement, or to inquire
about an existing Agreement
z Product Type
z Model Number
z Part Number
z Part Description
Call 9 am – 5 pm, Monday – Saturday
1 – 800 – 827 – 6655
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
7182219 (5/97)
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