Installation and Operating Instructions For
Aqua-Pure® AP-DWS1000 & AP-DWS1000 LF
Drinking Water Filtration Systems
6888931 0609
Installer: Please leave manual with homeowner.
Homeowner: Please retain for operation and
future maintenance instructions.
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SAFETY INFORMATION
Read, understand, and follow all safety information contained in these in-
structions prior to installation and use of the AP-DWS1000 & AP-DWS1000
LF Drinking Water Filtration Systems. Retain these instructions for future
reference.
Intended use:
®
The Aqua-Pure AP-DWS1000 & AP-DWS1000 LF Drinking Water Filtration Systems are
intended for use in filtering drinking water in residential locations and have not been evalu-
ated for other uses. These systems are typically installed beneath or near a kitchen sink,
and it is recommended that the installation be performed by a qualified installation specialist
or a licensed plumber.
EXPLANATION OF SIGNAL WORD CONSEQUENCES
Indicates a potentially hazardous situation, which, if not avoided,
could result in death or serious injury and/or property damage.
WARNING
Indicates a potentially hazardous situation, which, if not
avoided, may result in property damage.
CAUTION
WARNING
To reduce the risk associated with choking:
• Do not allow children under 3 years of age to have access to small parts during the
installation of this product.
To reduce the risk associated with ingestion of contaminants:
• Do not use with water that is microbiologically unsafe or of unknown quality without
adequate disinfection before or after the system.
To reduce the risk associated with a hazardous voltage due to an installer drilling
through existing electric wiring or water pipes in the area of installation:
• Do not install near electric wiring or piping which may be in the path of a drilling tool
when selecting the position to mount the filter bracket.
2
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CAUTION
To reduce the risk associated with property damage due to water leakage:
• Read and follow the Instructions in this manual before installation and use of this
system.
• Installation and Operation of this system MUST comply with all state and local plumb-
ing codes.
• Protect from freezing. Drain filter when temperatures drop below 40°F (4.4°C).
• Do not install if water pressure exceeds 125 psi (862 kPa). If your water pressure
exceeds 125 psi, you must install a pressure limiting valve. Contact a plumbing
professional if you are uncertain how to check your water pressure.
• Do not install where water hammer conditions may occur. If water hammer conditions
exist you must install a water hammer arrester. Contact a plumbing professional if you
are uncertain how to check for this condition.
• Install on COLD water lines only, maximum temperature is 100°F (37.8°C).
• The disposable filter cartridge must be replaced every six months or at the speci-
fied service cycle.
• Do not use a torch or other high temperature sources near filter or plastic fittings.
• Do not install in direct sunlight.
• Do not install near water pipes which will be in path of a drilling tool when selecting
the position to mount the bracket.
• Mount filter in such a position as to prevent it from being struck by other items used in
the area of installation (waste baskets, etc).
• On plastic fittings, never use pipe sealant or pipe dope. Use thread sealing tape only.
• Ensure all tubing and fittings are secure and free of leaks.
• Do not install unit if collet is missing. Contact CUNO if collets are missing from any
fittings.
• SHUT OFF FUEL SUPPLY TO WATER HEATER after water is shut off.
• Shut off cold water valve under the sink before installing feedwater valve.
• Shut off inlet water supply and depressurize system as shown in manual when
changing cartridges or servicing.
• Install with the inlet and outlet ports as labeled. Make sure not to reverse connections.
IMPORTANT NOTES
• Failure to follow instructions may void warranty.
• Allow a minimum of 2” (5 cm) clear space under filter to facilitate cartridge change.
• Do not crimp copper tubing.
• Porcelain, enamel and ceramic sinks require special procedures for drilling holes. Refer
to the special section on porcelain, enamel and ceramic sinks for detailed instructions.
• Some state and local plumbing codes may prohibit the use of saddle-type valves
and/or drain connections. The use of saddle-type valves are prohibited in: Alaska,
Delaware, Idaho, Kentucky, Massachusetts, Michigan, Minnesota, New Hampshire,
North Dakota, Ohio, Oregan and South Dakota. Check your local plumbing codes
for any restrictions that apply.
3
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Introduction:
This manual explains installation and operation of the Aqua-Pure® AP-DWS1000 & AP-
DWS1000 LF Drinking Water Filtration Systems. Please read each section of this manual
carefully.
The Aqua-Pure AP-DWS1000 & AP-DWS1000 LF Drinking Water Filtration Systems are
designed to connect permanently to a home plumbing system. To ensure that the installa-
tion conforms to your state and local plumbing codes, it is recommended that the installation
be performed by a qualified installation specialist for drinking water filtration systems or a
licensed plumber.
IMPORTANT NOTES
• Failure to follow instructions may void warranty.
Specifications:
Inlet/Outlet Size: 1/4” Tube with Quick Connect Fittings
Flow Rate: 0.6 gpm (2.3 lpm)
Temperature Range: 40-100°F (4.4-37.8°C)
Pressure Range: 25-125 psi (172-862 kPa)
Capacity: 625 gallons (2,366 liters)
Weight: 7 lbs. (3.2 kg)
Dimensions: 15-3/4” H x 10-7/8” W x 3-1/4” D (40 cm x 28 cm x 8 cm)
Parts Included: Model AP-DWS1000 Drinking Water System
• Drinking Water System Bracket Assembly (includes heads, connections & shut-off meter)
• Filter Cartridge #1 (AP-DW80)
• Filter Cartridge #2 (AP-DW90)
• Saddle Valve Assembly
• Faucet Assembly (with blue tubing)
• Tubing (yellow)
• Mounting Hardware
• Installation, Operation & Maintenance Manual
Model AP-DWS1000 LF (Less Faucet) does not include tubing to connect filter system
to a drinking water faucet. The filter system’s outlet connection will accept 1/4”plastic
or copper tubing.
Tools Required (not included):
• Drill (cordless recommended)
• Phillips Head Screwdriver
• Adjustable Wrench
• Razor Knife or Tube Cutter
• #8 Gauge Fastening Screws (appropriate for mounting surface)
If a Faucet Hole needs to be Drilled for Faucet:
• Center Punch
• File or Grinding Wheel
• 9/16” Drill Bit (suitable for counter top materials or cast iron/stainless steel)
IMPORTANT NOTES
• Some state and local plumbing codes may prohibit the use of saddle-type valves and/or drain
connections. See page 3 for list of states.
4
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1) Install DrinkingWater System Faucet (Refer to Figure 4, Page 11):
IMPORTANT NOTES
• Porcelain, enamel and ceramic sinks require special procedures for drilling holes. Refer to the
special section on porcelain, enamel and ceramic sinks for detailed instructions.
• The drinking water system faucet should be located on a flat surface, conveniently located near
the sink, so that it empties into the sink. Most sinks have pre-drilled holes designated for spray-
ers, soap dispensers and other accessories. If your sink does not have an extra hole, then a
9/16” diameter hole must be drilled.
Instructions for drilling 9/16” diameter hole through counter top or stainless steel sink
A. Locate area to be drilled. Mark center of the hole with center punch.
B. Drill hole with 9/16” drill bit suitable to counter top materials or cast iron/stainless steel.
C. With grinding wheel or file, smooth out any rough edges.
Installing the Faucet
A. Slide the following parts in the order specified up blue tubing and threaded brass stem:
1. Stainless steel bezel
2. Large rubber washer
B. Next, feed blue tubing and faucet stem down through faucet mounting hole.
C. From underneath sink, assemble the black spacer, star washer and hex nuts as shown
(see Figure 4, Page 11) onto the threaded brass stem and tighten by hand.
D. With a padded adjustable wrench, turn the faucet base (above the counter) to the right
(clockwise) to securely fasten. Remove piece of plastic tubing from base.
E. Insert faucet neck onto base until seated and align over sink.
2) Mount System
Determine undersink mounting location
WARNING
To reduce the risk associated with a hazardous voltage due to an installer drilling through
existing electric wiring or water pipes in the area of installation:
• Do not install near electric wiring or piping which may be in the path of a drilling tool when
selecting the position to mount the filter bracket.
IMPORTANT NOTES
• Allow a minimum of 2” (5 cm) clear space under filter to facilitate cartridge change.
A. Mark holes on mounting surface using holes on bracket as guides.
B. Drill starter holes into mounting surface.
C. Hang unit onto mounting surface by fastening wood screws through backplate of bracket.
3) Install Feedwater Valve (Refer to Figure 5, Page 11)
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Shut off cold water valve under the sink before installing feedwater valve.
• Installation and Use MUST comply with all state and local plumbing codes.
A. Most sinks use 3/8” copper tubing. Connect the saddle valve as shown in Figure 5,
Page 11. The back saddle bracket can be reversed for smaller pipe sizes (7/16” to 1/2”).
Tighten screws evenly and firmly, brackets should be parallel.
5
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B. To pierce soft copper tubing, turn handle to the right (clockwise) several times until it
stops. The valve is now closed. Turning the handle to the left (counterclockwise) will open
the valve.
C. Assemble insert, plastic sleeve and compression nut as shown onto yellow tubing and
fasten securely to saddle valve.
4) Making Connections (Refer to Figure 6, Page 12)
A. Connect yellow 1/4” tubing from saddle valve to the “Push-In” fitting on the left side of the
bracket assembly. THE YELLOW TUBE MUST GO UP AND THROUGH THE BASE OF
THE BRACKET.
IMPORTANT NOTES
• Be sure to install tubing so there are no sharp bends and install enough tubing for ease of ser-
vice. Refer to the enclosed diagram (Figure 1, Page 8) on the use of “Push-In” plastic fittings.
• Failure to route the yellow tubing through the bracket will not allow protective shroud to be fas-
tened securely to the bracket.
B. Connect the blue 1/4” tubing from the base of the faucet to the “Push-In” fitting at-
tached to the base of the shut-off meter.
Installing Filter Cartridge & Replacing Filter Cartridges
C. In order to ensure proper performance, it is essential that “Filter 1” be installed on the left
and “Filter 2” on the right side of the bracket assembly. Use the color/number coded labels
to match “Filter 1” cartridge with “Filter 1” head.
D. Meter should be set at “Start”.
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Installation and Use MUST comply with all state and local plumbing codes.
5) Test System
A. Open cold water valve under the sink.
B. The system will pressurize. Check for leaks. If any leaks are present, immediately turn off
water and refer to the Troubleshooting Section.
6) Flush Filter
A. Pressing down on the faucet lever will dispense water until you let go. Lifting up on the
lever will lock the faucet open.
B. Flush 5 gallons through system (approximately 10 minutes). At this point, the water will
run clear. In rare cases, it may take a week or more for the residual air bubbles to be
completely eliminated.
C. The system installation is now complete and ready to serve filtered water.
Enjoy!
7) Procedure for Drilling Hole Through Porcelain/Enamel/Ceramic
Sinks with Sheet Metal or Cast Iron Base
RecommendedTools:
• Variable Speed Drill
• Porcelain Cutter Tool Set (9/16” size)
• Plumber’s Putty
NOTE: It is important to understand this procedure before beginning.
6
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1. The glassy layer of porcelain/enamel/ceramic must be scored through to the metal base
creating a disc.
2. This disc must be removed while protecting the surrounding decorative coating against
chipping or fracturing.
3. The base metal must be drilled through to complete the hole.
Procedure:
A. Mark center for 9/16” hole.
B. Form a dam of shallow putty around hole location and fill with enough water to lubricate
carbide drill bit.
C. Carefully drill pilot hole through porcelain/enamel/ceramic and base metal using a carbide
pilot drill. Always operate drill with light pressure at slow speed (300-400 rpm).
D. Drill porcelain/enamel/ceramic using special 9/16” cutting tool, making certain a complete
ring has been cut through to the sink’s metal base.
E. Change to metal cutting drill bit and drill out the center of the ring, making sure not to
contact outer rim of decorative coating. Cut through metal sink base.
8) Troubleshooting
Water leaks from threaded connection:
Tighten fittings or hex nut until leak stops. If leaks persist, shut off water at the cold water
valve, remove threaded fittings, reapply PTFE tape around the fitting to the left (counter-
clockwise), and screw back into head assembly or saddle valve.
Water leaks at quick connect fittings:
Push tubing in as far as it will go. If leaking continues, shut off water at the cold water valve
and remove water line by pushing in on the connector collet while pulling the tubing away.
Inspect tubing for cracks. If tubing is cracked, simply cut that portion away and re-insert
tubing into quick connect fitting (see Figure 1, Page 8).
Water does not flow from the drinking water system faucet:
Check to see if the main water line valve is open, allowing water to flow to the filter. If water
still does not flow from the drinking water system faucet, make sure the filter’s shut-off valve
is reset to “Start”. Also, check for crimps or sharp bends in the blue and yellow tubing.
NOTE: In rare cases, it may take a week or more for the residual air bubbles to be com-
pletely eliminated.
7
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Quick Connect Guide (Figure 1)
‘Push-In’Tubing Connector
(Quick Connect Fittings)
This product is outfitted with user friendly
‘Push-In’ connectors. Proper use of the con-
nectors is shown in the diagrams. It is most
important that the tubing selected for use with
these connectors be of high quality, exact size
and roundness and with no surface nicks or
scratches. If it is necessary to cut the tubing,
use a plastic tubing cutter or sharp razor knife.
Make a clean square cut. Should a leak occur
at a ‘Push-In’ connector, the cause is usually
defective tubing.
To Fix:
• Relieve pressure
• Release tubing
• Cut off at least 1/4” from end
• Reattach tubing
• Confirm connection is leak free
To Attach Tubing
To Release Tubing
1
2
1
2
Tube
Grey Collet
Push tubing straight in as far as it will go. Tubing must be Push in grey collet to release tubing. With collet held, pull
inserted past o-ring and hit backstop. Pull tube to ensure tubing straight out.
it is secured.
CAUTION
To reduce the risk associated with property damage due to water leakage:
• Ensure all tubing and fittings are secure and free of leaks.
• Do not install unit if collet is missing. Contact CUNO if collets are missing from any fittings.
8
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AP-DWS1000 Parts List (Figure 2)
6
9
2
11
7
12 13
10
4
1
5
3
3
Reference #
Part #
Description
1
2
69968-31
36897-82*
55851-02
36897-62*
69888-42
68841-21
68871-01
85-400201
68845-31
68873-31
74-3230404
68870-33
69804-34
Self-Piercing Water Valve
1/4” Inlet Yellow Tubing (price per ft.)
AP-DW80 & AP-DW90 Cartridge Set
1/4” Outlet Blue Tubing (price per ft.)
Faucet
3
4
5
6
Shroud
7
Head
8
UTC Shroud Mounting Pin (not shown)
3/8” NPT x 1/4” Tube (Qty. 4)
1/4” NPT Adaptor x 1/4” Tube (Qty. 2)
1/4” Plug-In Elbow
9
10
11
12
13
Metering Valve
Metering Valve Screw (Qty. 4)
* Must order minimum of 10 ft (3 m)
9
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Installation Overview (Figure 3)
Standard Installation Overview
1 6
1. Install DWS Faucet
2. Mount System
1
3. Install Feedwater Valve
4. Making Connections
5. Test System
6. Flush Filter (see
page 6, Step 6B of this
manual for instructions)
Stainless Bezel
Rubber Washer
Countertop
2
3
Plastic Backing Spacer
Star Washer
Hex Nut
5
4
3
6
2
4
17" (43.2 cm)
Minimum
FILTER 1
FILTER 2
2" (5 cm)
Minimum
10
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Install Drinking Water System Faucet (Figure 4)
Stainless Bezel
Rubber Washer
Stainless Bezel
Rubber Washer
Countertop
Stainless Bezel
Rubber Washer
Countertop
Stainless Bezel
Rubber Washer
Countertop
A
B
C
D
Plastic Backing Spacer
Star Washer
Plastic Backing Spacer
Star Washer
Hex Nut
Hex Nut
Install Feedwater Valve (Figure 5)
A
B
C
11
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Making Connections (Figure 6)
B
A
FROM
FEEDWATER
VALVE
TO
DWS
FAUCET
C
FILTER 1
FILTER 2
12
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Cartridge Change Instructions (Refer to Corresponding Dia-
grams Below)
CAUTION
To reduce the risk associated with property damage due to water leakage:
• The disposable filter cartridge must be replaced every six months or at the specified ser-
vice cycle.
1. Turn water supply off at saddle valve or at undersink cold water line, and remove protective
shroud from bracket.
2. Reset shut-off meter by pushing in knob and turning to the right (clockwise) until the arrow
on the top of the meter body is lined up to “Start”. (It is recommended that the cartridges
be replaced when the meter reads 625 gallons. The shut-off meter will shut water pres-
sure to the faucet when 625 gallons are dispensed.) Open faucet to depressurize the
system.
3. Lift red knob upward and hold.
4. Turn cartridge to the left (counterclockwise) and gently pull straight down. Discard spent
cartridge. If system has not been properly depressurized, a small amount of water may
discharge. Repeat for second cartridge.
5. Align tabs of the new cartridges with head and insert cartridge. Turn cartridge to the right
(clockwise) until a clicking sound is heard. The cartridge is now properly installed. Use
the number coded labels to match “FILTER 1” cartridge with “FILTER 1” head. Repeat
with “FILTER 2”.
6. Turn on water at saddle valve or water line and check system for leaks. If leaks occur,
check connections or repeat cartridge installation.
7. Flush 5 gallons through system (approximately 10 minutes). Residual air may cause
temporary cloudiness in water. Place protective shroud back on bracket.
2
3
4
5
7
13
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NOTES:
14
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Limited OneYear Warranty
CUNO Incorporated warrants this Product to be free from defects in material and work-
manship for one (1) year from the date of purchase. This warranty does not cover failures
resulting from abuse, misuse, alteration or damage not caused by CUNO or failure to
follow installation and use instructions. If the Product is defective CUNO will replace the
Product or refund your Product purchase price. CUNO will not be liable for any indirect,
special, incidental, or consequential damages arising from the use of this Product. Some
states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation may not apply to you. To obtain warranty service, mail your request
to Warranty Claims, CUNO Incorporated, 400 Research Parkway, Meriden, CT 06450.
Proof of purchase (original sales receipt) must accompany the warranty claim, along with
a complete description of the Product, model number and alleged defect. This warranty
gives you specific legal rights and you may have other rights which vary from state to state,
or country to country.
®
a 3M company
CUNO Incorporated
400 Research Parkway
Meriden, CT 06450 USA
Toll Free: 1-800-222-7880
Worldwide: 203-237-5541
Fax: 203-238-8701
3M is a trademark of 3M Company.
CUNO and Aqua-Pure are trademarks of 3M Company used under license.
© 2009 3M Company. All rights reserved.
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