Watts W-415-NF User manual

Installation, Operation and
Maintenance Manual
Model W-415-NF, W-525, W-525-NF, W-525P
IOM-WQ-W-415-NF_W-525_W-525-NF_W-525P
WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.
WQA Certified to NSF/ANSI standard
58, and NSF/ANSI standard 372 for lead free
compliance.
Do not use with water that is microbiologically unsafe or of
unknown quality without adequate disinfection before or after the
system.
WARNING
!
If you are unsure about installing your WATTS water filter, contact
a WATTS representative or consult a professional plumber.
IMPORTANT
!
Test the water periodically to verify that the system is
performing satisfactory.
Discard small parts remaining after the installation.
CAUTION
!
Failure to install the system correctly voids the warranty. Handle all
components of the system with care. Do not drop, drag or turn
components upside down.
Be sure the floor under the water filter system is clean, level and
strong enough to support the unit.
Watts, 13700 HWY 90 West San Antonio, TX 78245
NOTICE
Model 525P Shown

2
Thank you for choosing the Watts Reverse Osmosis Drinking Water
System. With proper care your water filtration system will produce
high quality drinking water for many years.
Read carefully and follow the instruction in this manual before
proceeding with the actual installation. Pay particular attention to
all warnings, cautions and notes. Failure to do so could result in
personal injury or damage to the equipment or other property.
System and installation need to comply with state and local laws and
regulations.
Check List:
1) Reverse Osmosis Unit.
2) Water storage tank, 3 gallon volume (2.5 gallon @40psi).
3) Installation kit: tank ball valve, drain saddle clamp (¼" & 3/8"), feed
water valve, faucet assembly.
4) Manual.
Recommended Tools Lists
* Variable speed drill
* 1/8" and 1/4" drill bits
* 7/16" drill bit 1/2" and 9/16" open-end wrenches (or adjustable)
* Phillips screwdriver
* Utility knife
This reverse osmosis system contains a replaceable component
critical to the efficiency of the system.
Replacement of the reverse osmosis component should be with one
of identical specifications, as defined by the manufacturer, to ensure
the same efficiency and contaminant reduction performance. The
product water shall be tested periodically to verify that the system is
performing satisfactorily.
Do not use with water that is microbiologically unsafe or of unknown
quality without adequate disinfection before or after the system.
1) Reverse Osmosis Unit
(525P Shown)
2) Water Storage
Tank 3 Gallon
3) Installation Kit

3
W-415-NF Filtration Process
Specifications:
1st stage: Sediment filter, 5 micron, 10"
2nd stage: Carbon block filter, 5 micron, 10"
3rd stage: TFC membrane, 50GPD @ 60PSI
4th stage: Inline carbon filter
Auto shut off valve
Operating pressure: 40-100 PSI
Operating temperature: 40-100°F
Please contact your local dealer at:
Replacement Parts
WATTS ITEM# DESCRIPTIONS SERVICE LIFE
FPMB5-978 Sediment filter, 5 micron, 10" 6-12 months
F101009 Carbon block filter, 5 micron, 10" 6-12 months
W-1812-50 TFC membrane, 50GPD @ 60 PSI 24-36 months
FI-CBA010J.38 Inline carbon filter 12-18 months

4
W-525 and W-525-NF Filtration Process
Specifications:
1st stage: Sediment filter, 5 micron, 10"
2nd stage: Carbon Block filter, 5 micron, 10"
3rd stage: Carbon Block filter, 5 micron, 10"
4th stage: TFC membrane, 50GPD @ 60 PSI
5th stage: Inline carbon filter
Auto shut off valve
Operating pressure: 40-100 PSI
Operating temperature: 40-100°F
Please contact your local dealer at:
Replacement Parts
WATTS ITEM# DESCRIPTIONS SERVICE LIFE
FPMB5-978 Sediment filter, 5 micron, 10" 6-12 months
F109009 Carbon block filter, 5 micron, 10" 6-12 months
F109009 Carbon block filter, 5 micron, 10" 6-12 months
W-1812-50 TFC membrane, 50GPD @ 60PSI 24-36 months
FI-CBA010J.38 Inline carbon filter 12-18 months

5
W-525P RO Filtration Process
Please contact your local dealer at:
Replacement Parts
Specifications:
1st stage: Sediment filter, 5 micron, 10"
2nd stage: Carbon Block filter, 5 micron, 10"
3rd stage: Carbon Block filter, 5 micron, 10"
4th stage: TFC membrane, 50GPD @ 60 PSI
5th stage: Inline carbon filter
Auto shut off valve
Operating pressure: 40-100 PSI
Operating temperature: 40-100°F
WATTS ITEM# DESCRIPTIONS SERVICE LIFE
FPMB5-978 Sediment filter, 5 micron, 10" 6-12 months
F109009 Carbon block filter, 5 micron, 10" 6-12 months
F109009 Carbon block filter, 5 micron, 10" 6-12 months
W-1812-50 TFC membrane, 50GPD @ 60PSI 24-36 months
FI-CBA010J.38 Inline carbon filter 12-18 months

Installation Quick Look
Please follow 4 color tubing diagram to complete installation Please follow 4 color tubing diagram to complete installation
Installation needs to comply with State and local plumbing regulations.
HOW TO MAKE A CONNECTION
1. CUT THE TUBE SQUARE
Cut the tube square. It is essential that the outside diam-
eter be free from score marks and that burrs and sharp
edges be removed before inserting into fitting. For soft thin
walled plastic tubing we recommend the use of a tube
insert.
2. INSERT TUBE
Fitting grips before it seals. Ensure tube is pushed into the
tube stop.
3. PUSH UP TO TUBE STOP
Push the tube into the fitting, to the tube stop. The collet
(gripper) has stainless steel teeth which hold the tube
firmly in position while the o-ring provides a permanent
leak proof seal.
4. PULL TO CHECK SECURE
Pull on the tube to check that it is secure. It is a good
practice to test the system prior to leaving site and/or
before use.
Disconnecting PUSH COLLET AND REMOVE TUBE To
disconnect, ensure the system is depressurized before
removing the tube. Push in collet squarely against face of
fitting. With the collet held in this position, the tube can be
removed. The fitting can then be re-used.
CAUTION: When cutting supplied tubes, predeter-mine the
length by measuring the distance between the components to
be connected.
No tools are needed to connect 4 colored tubes.
Connections Item No. Color of Tubing Description
A RO Faucet FU-WDF-905-CP Blue Pure water to the Faucet
B Feed Water Valve F560080 Green Feed Water to RO System
C Tank Ball Valve PPSV501222W Yellow Pure Water to Storage Tank
D Drain Saddle SC500B14 or WE-CU138B-Q Red Discharge Water to Drain

7
Drill a Hole for the Faucet in a Porcelain Sink
NOTICE
Most sinks are pre drilled with 1 ½" or 1 ¼" diameter hole that you can use for your RO
faucet. (If you are already using it for a sprayer or soap dispenser, see step 1)
Porcelain sinks are extremely hard and can crack or chip easily.
Use extreme caution when drilling. Watts accepts no responsibility for damage resulting
from the installation of faucet. Diamond tip bit recommended.
1) Determine desired location for the RO faucet on your sink and place a piece of masking tape
over where the hole is to be drilled. Mark the center of the hole on the tape.
2) Using a variable speed drill set on the slowest speed, drill a 1/8" pilot hole through both porce-
lain and metal casing of sink at the marked center of the desired location. Use lubricating oil
or liquid soap to keep the drill bit cool (If drill bit gets hot it may cause the porcelain to crack or
chip).
3) Using a 1 ¼"hole saw, proceed to drill the large hole. Keep drill speed on the slowest speed
and use lubricating oil or liquid soap to keep the hole saw cool during cutting.
4) Make sure the surroundings of the sink are cooled before mounting the faucet to the sink after
drilling and remove all sharp edges.
PUNCH A HOLE FOR THE FAUCET IN A STAINLESS STEEL SINK
NOTICE
If mounting faucet to a Stainless Steel Sink you will need a ½" & 1 ¼" hole punch.
The faucet opening should be centered between the back splash and the edge of
the sink, ideally on the same side as the vertical drain pipe.
Drill a ¼" pilot hole. Use a ½" hole punch and an adjustable wrench to punch the
hole in the sink. Change to the 1 ¼" hole punch to enlarge the hole.
The faucet can now be installed.
5) Drill a ¼" pilot hole. Use a ½" hole punch and an adjustable wrench to punch the hole in the
sink. Change to the 1 ¼" hole punch to enlarge the hole.
The faucet can now be installed.

8
Typical RO Faucet Installation
Drinking Feed Tube Connection
Non Air Gap Faucet
Locate the 3/8" threaded quick connect fitting in the parts bag.
After the faucet has been mounted, thread the fitting on the to faucet
stem. Connect the 3/8" blue feed tube to the 3/8" quick connect
fit-ting on the faucet stem. The final polishing filter is clipped on to
the top of the RO membrane housing. Attached to the polishing filter
is a 3/8" quick connect elbow fitting. Attach the open end of the 3/8"
blue tubing from the RO faucet to the 3/8" quick connect elbow on
the polishing filter.
With Non Air-Gap faucets this will be the only tube connected to the
RO faucet.
Air Gap Faucet
Follow the drinking feed tube connection instruc-tions above. Con-
nect the ¼" drain tube from the RO module up to the ¼" fitting on
the RO faucet. The 3/8" drain tube from the RO faucet will connect
to the 3/8" drain saddle.
BLACK RUBBER
WASHER
ESCUTCHEON PLATE
COUNTER TOP/SINK
LOCK WASHER
3/8” FAUCET CONNECTOR
3/8” BLUE TUBING FROM
RO MODULE
1/4” RED LINE TO
RO MODULE
3/8” Line to Drain
Saddle Valve
Non Air Gap Faucet Installation
Air Gap Faucet Installation
Black Rubber
Washer
Escutcheon Plate
COUNTER TOP/SINK
LOCK WASHER
3/8” FAUCET CONNECTOR
3/8” BLUE TUBING FROM
RO MODULE

9
Feed Water Valve Installation
Caution: Water supply line to the system must be from the cold water supply line only.
Hot water will severely damage your system.
Do not use Teflon tape with the Adapt-a-Valve.
1) Turn off the cold water supply to the faucet by turning the angle stop valve completely off.
2) Attach the adapt-a-valve as illustrated in the three photos above, choosing the configuration that fits your plumbing.
Drain Saddle Installation
Use the ¼" Drain Saddle with non air-gap faucet and 3/8" with air-gap faucet.
CAUTION
!
If you have a garbage disposal, do not install the drain saddle near it. Installation of the drain
saddle must be either above the garbage disposal, or if a second sink drain is available, install
it above the cross bar on the second drain. Installation of the drain saddle near a garbage
disposal may cause the drain line to plug.
1) Gather the pieces of the drain saddle
1 Black compression nut 1 Semicircle bracket with opening
2 Screws 1 Foam gasket
2 Nuts for screws 1 Semicircle bracket
2) The small square black foam gasket with a circle cut out of the middle must be applied to
the inside of the drain saddle. Remove sticky tape backing and stick to the drain saddle as
shown.
3) The drain saddle must be mounted at least 1 ½" above the nut of the P-trap or cross bar
from the garbage disposal to insure proper drainage. Assemble the drain saddle around the
drain pipe at the best available location. Using Phillips screw driver tighten screws evenly and
securely on both sides of the drain saddle. Keep the plastic compression nut off at this time.
Do not over tighten the screws. It may crack the drain saddle.
CAUTION
!
WARNING
!
Conguration for 3/8"
(with brass ttings)
*Insert white washer
Hot Cold
Supply Supply
Conguration for 1/2"
(without brass ttings)

10
<Fig 5>
STEP 3:
Mounting the Tank Ball Valve
Note: Do not tamper with the air valve on low side of storage
tank. It has been preset at 5-7 psi by the manufacturers.
1) With the provided teflon tape wrap 3-4 turns in a clockwise
direction around the male threaded connection on the top of the
storage tank,
2) Connect the ball valve to the thread. Make sure it is tight but not
over tight. See <Fig. 5>.
3) Connect the yellow tubing from to the tank ball valve. Push the
tubing in all the way to make sure it is properly seated.
4) Turn the tank ball valve off.
TOP VIEW OF TANK BALL VALVE
(PPSV501222W)
OFF POSITION ON POSITION
STEP 4:
Mounting the Drain Clamp
The drain saddle and part number to (SC500B14) will fit most stan-
dard drain pipe ¼". It should be installed above the trap and on the
vertical tailpiece. See <Fig. 6>
1) Position the drain saddle in desired location, mark spot through
thread outlet, remove saddle.
2) Drill ¼" (6.3mm) hole into the drain pipe above the water line of
trap.
3) Align the hole drilled in the drain pipe with the drain saddle using a
drill bit or other narrow straight object and tighten clamp.
4) Make sure to align drain saddle to drilled hole. Attach drain saddle
to drain pipe and tighten the two screws evenly. See <Fig. 7>.
5) Connect black tubing to drain clamp.