A.O. Smith Pro AOW-4000 User manual

OWNER'S MANUAL
Use this owner's manual to reference installation,
troubleshooting and lter replacement information.
If you need help or have a question,
we've got you covered.
Give us a call at 833.232.9711

System Tested and Certied by NSF International against
NSF/ANSI Standards 42, 53, 58, & 401 and conforms to NSF
protocol P473 for the reduction of the claims specied on
the Performance Data Sheet and at www.nsf.org.
Sistema probado y certificado por NSF International según las
normas NSF/ANSI 42, 53, 58 y 401, y conforme al protocolo P473
de NSF para la reducción de las declaraciones especificadas en la
Hoja de datos de rendimiento y en www.nsf.org.
Remineralizer with Microbial Filter is Tested and
Certied by IAPMO R&T Lab and IAPMO R&T against NSF
Protocol P231 as veried and substantiated by test data.
El remineralizador con filtro microbiano está probado
y certificado por IAPMO R&T Lab y IAPMO R&T según el
protocolo P231 de NSF según se verifica y corrobora mediante
los datos de prueba.
COMPONENT
AOW-4000
REVERSE OSMOSIS
With Microbial and Pump
Osmosis inversa con ltro microbiano y bomba
Owner’s Manual / El manual del proprietario
A. O. Smith Corporation P.O. Box 1597 | Johnson City,TN 37605-1597 | 833.232.9711
AOW-4000_install_20190320
This ltration system is designed and tested for use with genuine A. O. Smith parts, including replacement
lters, faucet and all hardware. Use of parts from other manufacturers may result in loss of contaminant
reduction performance, system damage or failure. Use of parts from other manufacturers will also void
your warranty. Please visit www.aosmith.com/wholesale for replacement parts. Installation must comply
with state and local ordinances.
A. O. Smith is not liable for consequential or incidental damages due to improper installation.
Este sistema de ltrado está diseñado y probado para ser usado con piezas originales de A. O. Smith, lo que incluye los
ltros, la llave y todas las piezas metálicas de repuesto. El uso de piezas de otros fabricantes puede generar una pérdida en el
rendimiento de la reducción de contaminantes, dañar el sistema o causar fallas. El uso de piezas de otros fabricantes también
anulará su garantía. Visite www.aosmith.com/wholesale para pedir repuestos. La instalación debe cumplir con las ordenanzas
estatales y locales.
A. O. Smith no se hace responsable por daños indirectos o emergentes a causa de una instalación incorrecta.
Get the most out of your lter by using
only genuine A. O. Smith replacements.
Visit www.aosmith.com/wholesale
to nd replacements or call 833.232.9711
to speak to a Wholesale Representative.
Aproveche al máximo su ltro con los repuestos originales de A. O. Smith.
The recommended replacement frequency
for the AOW-4000 lters are:
Prelter, Carbon, Claryum®and Remineralizer
with Microbial Filter - replace every 6 months.
Membrane Filter - replace every 2 years.
La frecuencia de reemplazo recomendada para
los ltros AOW-4000 es la siguiente:
Preltro, carbón, Claryum®y remineralizador
con Filtro microbiano: cada 6 meses.
Filtro de membrana: cada 2 años.

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• Variable speed drill with
1/4" bit (for drilling a hole
on PVC drain pipe)
• Open-end wrenches (11⁄16",
13/16", 1"), adjustable
wrench, or pliers
• Phillips head screwdriver
• Scissors or utility knife
• Towel and bucket
• Food-grade silicon grease
(optional)
• Filter cartridge wrenches
(included with the system)
Note: We recommend using
an approved or certied
professional if drilling is
required. Basic plumbing
knowledge is recommended
prior to installing this unit.
AOW-4000
REVERSE OSMOSIS
With Microbial and Pump
TABLE OF CONTENTS
Box Contents .........................................................................................................................................1
Installation Guide...............................................................................................................................2-9
Initial Startup.......................................................................................................................................10
Digital Sensors.....................................................................................................................................11
Care and Maintenance...................................................................................................................12-13
Performance Data Sheet.....................................................................................................................14
System Specications .....................................................................................................................15-17
Warranty..............................................................................................................................................18
Spanish/Español...................................................................................................................................19
A. O. Smith has obsessively engineered this ltration system for you to feature both Reverse
Osmosis and Claryum®ltration that reduces harmful contaminants – those you can see, smell
and taste, and those you can’t – with no chemical additives. Whatever your water needs – from
hydration to cooking, early morning coffee, smoothies, or soup, you will now have ltered water.
Keep this owner’s manual to reference installation, troubleshooting
and lter replacement information.
If you need help or have a question, we’ve got you covered.
Give us a call at 833.232.9711
BOX CONTENTS 1
Tools recommended for installation:
R DRAIN SADDLE WITH
INSTALLATION PARTS
S REMINERALIZER
MOUNTING BRACKET
T MOUNTING SCREWS
(FOR REMINERALIZER
BRACKET AND SYSTEM
MANIFOLD)
U TUBING
V CABLE TIES
W SPARE QUICK-CONNECT
FITTING LOCKS
X REDUCING ELBOW
FITTINGS (2)
I CARBON
J CLARYUM®
K MEMBRANE
L REMINERALIZER WITH
MICROBIAL FILTER
M FILTER HOUSING O-RINGS
N PLUMBER'S TAPE
O LEAK DETECTOR
P HOUSING WRENCHES
Q WATER FEED ADAPTER
A SYSTEM COVER
B FILTER HOUSINGS (3)
C RO MANIFOLD
D FAUCET WITH
INSTALLATION PARTS
E STORAGE TANK
F TANK STAND
G TANK SHUT-OFF VALVE
H PREFILTER
Please read entire manual to ensure all parts listed are present before installation.
If any part is missing or damaged let us know by calling 833.232.9711.
Do not attempt to install the lter.

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INSTALLATION GUIDE
23
Prepare site and plan for installation
Prior to installation, read the entire manual to familiarize yourself with the system, and determine
the best location for installation. Ensure you check and comply with all local plumbing codes.
STEP 2 - Connect the feed water valve
STEP 3 - Install the tank
TO CONNECT:
1 This system comes with installation tubing. To
assemble the tubing, measure the required length
and cut.
2 With a utility knife, create a clean, square edge for
each tubing. Measure 3/4" from the end and mark
with a permanent marker.
3 Remove the lock clip and insert the tubing into
the lock sleeve, until the mark almost disappears.
Re-install lock clip.
TO DISCONNECT:
1 Remove the lock clip.
2 Gently push the lock sleeve down against
the tting body.
3 Keep the lock sleeve pushed down and
pull on the tubing to remove.
This system features quick-connect ttings.
STEP 1 - Position the system and tank
1 Turn off the cold water supply to the sink.
2Turn on the kitchen cold water faucet to release
pressure and allow water to drain from the line.
1 Apply plumber’s tape 4 or 5 times clockwise
around the nipple on top of tank in the same
direction as threads.
2 Screw the tank shut-off valve onto the threads
by hand. Do not over-tighten.
3 Place the tank on its stand and position it in the
desired location.
3Disconnect the faucet connector pipe from the
cold water supply. Place a towel underneath to
catch any drips.
4Congure the feed water valve to match the
connection on the cold water supply.
5Attach the feed water valve to the cold water
supply. Reconnect the faucet connector pipe to
the feed water supply valve.
Note: Do not over-tighten.
WATER FEED ADAPTER
TANK SHUT-OFF
VALVE
DRILL TWO 1/8" DIAMETER HOLES AND
ASSEMBLE TWO #10 MOUNTING SCREWS
TO HANG THE SYSTEM MANIFOLD
4.0"
MINIMUM
3.0"
MINIMUM
18.0" MINIMUM
FROM FLOOR
TIP Temporarily place System Manifold, Remineralizer,
and Tank into the under sink cabinet or desired location to
ensure adequate space and proper positioning.
1 This system is designed to be installed under the
sink, but wherever installed, the system requires
access to a cold water supply, a drain line, and
120-volt AC power. Ensure the power supply is
properly grounded and meets all electrical code
requirements. A remote installation should be
close enough so no more than 15' of tubing are
required to run from the RO System and faucet.
The RO System should not be located more
than 10' below the faucet. Excessive distance or
height difference will reduce the ow rate of
the treated water. Depending on the distance
between the system and the faucet, more
tubing may be required to install the system. If
required, use drinking-water rated polyethylene
tubing with a 1/4" outside diameter.
2 Select a location for the RO System Manifold,
the Remineralizer and the Storage Tank.
Temporarily place the components in the
desired location to ensure adequate space
and proper positioning. Allow at least 3" of
clearance between the oor and the bottom
of the lter housings to allow ample space for
lter changes. To help gauge the right location
for the System Manifold, temporarily assemble
the lter housings into the Manifold for
reference.
3 The back plate of the System Manifold includes
two keyhole slots used for hanging the unit on
a wall with (2) #10 mounting screws. The screws
should be threaded into a surface capable
of supporting the weight of the system.
The instructions below assume that you are
mounting the unit to a cabinet wall. If you are
mounting to drywall or a similar surface, use
the appropriate anchors.
4 Mark wall placement for mounting screws using
the diagram below. Ensure that the holes are as
level as possible.
5 Drill two pilot holes for the mounting screws
using a 1/8" drill bit.
6 Insert two #10 screws into the mounting holes,
leaving approximately 3/8" of each screw
exposed.
7 Hang the System Manifold on the mounting
screws. During installation, you can temporarily
remove the unit from the wall to improve
access to various components.
HOT COLD
HOT COLD

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INSTALLATION GUIDE4 5
STEP 6 - Install the dispensing faucetSTEP 4 - Install drain connector
WARNING Ensure that all electrical appliances
and outlets are turned off at the circuit breaker
before working in the cabinet area.
CAUTION Wear safety glasses to
protect eyes when drilling.
1 The dispensing faucet requires a hole in the
counter or sink. The mounting hole should
be between 1" and 1-3/8" in diameter.
Either use an existing hole or drill one in
the desired location.
2Install the faucet O-ring into the groove on
the bottom of the faucet. Applying a small
amount of silicone grease to the O-ring
before installation will help hold it in place
during assembly.
3 Measure the amount of tubing required to
run from the faucet to the drain connection
on the RO System. Cut a piece of 1/4" tubing
to the required length and push one end of
the tube onto the smaller barbed tting on
the faucet.
4 Measure the amount of tubing required to
run from the faucet to the drain saddle. Cut
a piece of 3/8" tubing to the required length
and push one end of the tubing onto the
larger barbed tting.
5 Assemble the faucet escutcheon onto the
bottom of the faucet. Slide the escutcheon
with its gasket over the drain tubing until it
seats against the faucet.
6 Feed the drain tubes through the installation
hole and insert the faucet, threaded side
down, into the hole.
7 From under the sink, slide the split washer,
spacer and lock washer onto the faucet base
threads and secure them with the lock nut.
8 Assemble the quick-connect tubing adapter
to the faucet base threads.
1 Identify drain outlet location. Do not install
the drain connector onto the same drainpipe
as the garbage disposal. If drain-line must be
installed on the same line as garbage
disposal, do not use the drain connector
included. A garbage disposal
connector is recommended.
2 Remove protective
cover from back of
foam seal (N).
3 Knock center hole out,
align holes, and attach
to front plate of drain
connector (L).
4 Use drain connector to mark the
drill location on drain-line. Drill a 1/4" hole
on the drain pipe. Do not penetrate opposite
side of pipe.
5 Position the drain connector on sink drain pipe
above drain trap, allowing room for drilling.
6 Securely tighten nuts (M) and screws (M). DRAIN PIPE
BRACKET
NEW HOLE
1 The Remineralizer with Microbial Filter
Cartridge is installed on the outlet line between
the system and dispensing faucet. The Cartridge
should be installed vertically with its outlet
facing up.
2 Screw the Cartridge holder to the wall.
3 Insert a reducing elbow into the inlet and outlet
of the Cartridge.
4 Snap the Cartridge into the holder.
STEP 5 - Install the Remineralizer with
Microbial Filter cartridge
M
N
LM
MOUNTING BRACKET
REMINERALIZER
CARTRIDGE
ESCUTCHEON
ESCUTCHEON
GASKET
FAUCET O-RING
SPLIT WASHER
SPACER
LOCK WASHER
LOCK NUT
TUBE ADAPTER
NOTE: In addition to dispensing treated water, the faucet
includes an air gap that prevents unsanitary water from the
household drain owing back into the RO unit. The barbed
ttings on the faucet connect the air gap to the RO System
drain lines.
TIP
If there is leakage from the drain bracket, loosen the bolts
and slide the bracket up so the drilled hole is at the bottom
of the drain connector port.
MOUNTING SCREW
ELBOW
ELBOW
HOT COLD

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INSTALLATION GUIDE6 7
STEP 8 - Connect the system
STEP 9 - Install the lter cartridges
STEP 7 - Install the RO Membrane
1 Remove the cover from the System Manifold.
2 Find the electrical connector for the system display
and connect it to the control board located inside
the cover. Use the diagram to determine the correct
connector.
3 The system includes a leak detector that will sound an
alarm if a leak is detected. Remove the leak detector
from its box and unwind the attached cable. Feed the
leak detector cable through the hole in the bottom
left corner of the System Manifold and connect it to
the mating plug found on the System Manifold. Place
the leak detector on the base of the cabinet under the
system with the A. O. Smith lettering facing up.
4 Place the cover on the System Manifold and
re-assemble the Manifold to the mounting screws
inside the cabinet as necessary.
1 Assemble two (2) O-rings to each of the three
(3) lter housings. One O-ring ts into the
groove at the top of the housings, and one ts
into the groove on the outside of the housings
above the mounting threads.
2 Remove all the lter cartridges and any
packaging materials from the lter housings.
Unwrap the #1 prelter cartridge. Place it in
the #1 prelter housing. Keep it centered in
the housing and assemble the housing into the
lter cap at the far right position. Twist it to the
right by hand and use the large housing wrench
to tighten it about 1/4 turn.
1 Remove the cover from the System Manifold,
if necessary, and locate the RO Membrane
housing. Ensure you do not damage the
Membrane when you remove it from its
packaging. Note the RO Membrane package
contains a small amount of preservative
solution designed to protect the Membrane
during storage and shipping.
It is also packaged with two clear covers on the
ends of the membrane. These covers are only
included to protect the Membrane seals during
shipping and they should be removed and
disposed of before installation.
2 Disconnect the white tubing from the inlet
quick-connect tting on the RO Membrane
housing.
3 Unscrew the cap from the housing. The smaller
wrench included with the system may be
needed to loosen the cap.
4 Remove the Membrane from its sealed bag.
Insert the Membrane into the housing. Note
that one end of the Membrane has two pairs of
O-ring seals and the other has one pair. Insert
the end with two pairs of O-ring seals into the
housing rst. Push the housing in gently until
it seats. Do not use excessive force to assemble
the Membrane.
5 Ensure the RO housing O-ring is
seated correctly.
6 Screw on the housing cap. Use the small
wrench to tighten it about 1/4 turn.
7 Reconnect the white tubing to the inlet
quick-connect tting on the cap.
3 Unwrap the #2 Carbon Prelter Cartridge.
Place it in the #2 prelter housing. The end
of the Cartridge with the O-ring seals should
face up in the housing. Assemble the housing
to the center position in the RO unit. Ensure
you align the center of the Cartridge with the
center of the socket. Twist the housing to the
right by hand and use the large housing wrench
to tighten it about 1/4 turn.
4 Unwrap the #4 Claryum®Cartridge. Place it
in the #4 postlter housing. The end of the
Cartridge with the O-ring seals should face up
in the housing. Assemble the housing to the
center position in the RO unit. Ensure you align
the center of the Cartridge with the center
of the socket. Twist the housing to the right
by hand and use the large housing wrench to
tighten it about 1/4 turn.
WARNING: We recommend using an approved or certied professional.
Proper installation is the responsibility of the installer. Product failure due
to improper installation is not covered under the warranty.
NOT USED
CONNECT TO
SYSTEM DISPLAY
CONNECT TO
LEAK DETECTOR
RO HOUSING
RO HOUSING O-RING
RO MEMBRANE
(note orientation)
RO COVER

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1 2
3
"
Depth to insert tubing
Diagram is actual size.
1 Supply water connection
(1/4" white tubing)
Use a length of 1/4" white tubing to connect the
water supply. Insert one end of the tubing into
the tting on the inlet valve and the other end
into the “inlet” tting on the System Manifold.
4 Drain connection
Connect the piece of 1/4" white tubing previously
connected to the faucet air gap onto the System
Manifold. Cut off any excess tubing and insert the
loose end of the tubing into the “drain” tting
on the System Manifold.
Connect the piece of 3/8" white tubing previously
connected to the faucet air gap onto the drain
tting. Cut off any excess tubing and insert the
loose end of the tubing into the drain tting that
was previously assembled to the drain pipe.
STEP 10 - Connect tubing
3 Tank connection
(1/4" white tubing)
Use a length of 1/4" white tubing to connect
the System Manifold to the Storage Tank. Insert
one end of the tubing to the “tank” tting on
the System Manifold and the other end into the
shutoff valve on the top of the Storage Tank.
INSTALLATION GUIDE8 9
2 Outlet connection
(1/4" white tubing)
Use a length of 1/4" white tubing to connect the
System Manifold to the Remineralizer Cartridge.
Insert one end of the tubing into the “outlet”
tting on the System Manifold and the other
end into the “inlet” tting on the Remineralizer
Cartridge.
Use a second length of 1/4" white tubing to
connect the Remineralizer Cartridge to the
dispensing faucet. Insert one end of the tubing
into the “outlet” tting on the Remineralizer
Cartridge and the other end into the supply
tting on the dispensing faucet.
STORAGE TANK
CONNECTION
TO FAUCET DISPENSE LINE (1/4")
TO DRAIN LINE
FROM COLD
WATER LINE
TO
FAUCET
STAGE 5
STAGE 4 STAGE 2 STAGE 1
DRAIN CONNECTION
COLD-WATER INLET
CONNECTION
STORAGE TANK
CONNECTION
OUTLET
CONNECTION (TO
REMINERALIZER)
HOT COLD

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1 Turn off the storage tank valve.
INITIAL STARTUP PROCEDURE DIGITAL SENSOR OVERVIEW10 11
There is a “Select” and “Reset” button on the sides of the display. These buttons are
used to reset the lter life of a cartridge after replacement. To reset the cartridge life,
press the “Select” button until the icon for the desired lter cartridge blinks. When you
have selected the correct cartridge, press and hold the “Reset” button for three seconds.
If you are changing more than one lter cartridge, you can then select the next lter
stage to reset. The system will return to normal operation 10-seconds after you nish
pressing the “Select” or “Reset” buttons.
The display shows the status of the system and allows you to reset the lter life monitors when you replace lter cartridges.
When the
system is actively
producing
treated water, the
“Filtering” icon
will be blinking
green.
Water supply issue
The RO System monitors the
water supply to ensure it
is adequate for the system
to prevent the pump from
damage that could occur. If
the water supply is adequate,
the “Low Pressure” icon will
be lit green. If the water
supply is turned off or if the
supply pressure becomes too
low, the “Low Pressure” icon
will turn red and an alarm
buzzer will beep seven times,
pause for two seconds, and
repeat. The control will turn
off the pump when there is
not enough water pressure.
The alarm will clear once the
water pressure has returned
to normal.
If there is a system failure, the
“Alarm” icon will be lit in red.
An alarm will be triggered if
the system detects a leak, or if
the water supply is off or not
owing normally
System Leak
If the leak monitor detects
leaking water, the “Alarm”
icon will light up and the
buzzer will repeat a 2-second
long chime. The system will
automatically turn off the
pump and stop operating
until the alarm is cleared.
Unplug the system, nd the
source of the leak, and repair
it. After the leak has been
xed, dry off the sensor and
re-power the system. The
system will perform a brief
startup ush and then return
to normal service.
The system monitors the life of the ve lter elements and
noties you when they need to be replaced. The display shows the
remaining life for each of the ve lter stages. As a lter’s life is
used, the number of bars on the monitor will be reduced. When the
monitor display is reduced to one orange bar, that lter will need
replacement. If the monitor display shows one red bar, then that
lter is overdue for replacement and its effectiveness will be reduced.
When any lter cartridge is
ready for replacement, the
“Change Filter” icon will
be lit. If a lter cartridge is
overdue for replacement, the
system will sound eight short
beeps every time you use it.
2 Turn on the cold-water supply valve.
3 Power on the unit.
4 The unit will run a startup ush –
it will ush the system to drain for
18 seconds, pause to purify water for
15 seconds, then ush to drain for
another 18 seconds.
5 After the startup ush is complete, turn on the
dispensing faucet for ten minutes to allow the
system to ush any remaining particles out of
the system.
6 While the unit is operating, check all of the
connections for leaks or drips. If there are leaks,
turn off the cold water supply valve and unplug
the system (keep the faucet on). Fix the leaking
connection, then turn off the faucet and repeat
this startup procedure.
7 After ten minutes, turn off the dispensing
faucet and turn on the tank valve. The unit will
continue to operate, lling the storage tank
with puried water. While the unit is running,
recheck the system for leaks.
9 When the storage tank is empty, turn off the
faucet. The system will continue operating,
relling the tank. Repeat Step 8 to ush the
tank once more.
10 After ushing the storage tank a second time,
turn off the dispensing faucet and allow the
unit to rell the tank with puried water. The
system is now ready for regular use.
8 The unit will turn off when the tank is lled.
The tank should be ushed two times at initial
startup to remove residual impurities. To empty
the tank, turn on the dispensing faucet and
allow the tank to drain until empty. The tank
is empty when the ow rate out of the faucet
drops signicantly.
5
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CARE AND MAINTENANCE
12
Prelter Carbon and Claryum®
- Change every 6 months*
The Prelter, Carbon and Claryum®lter cartridges
are located in Stages 1, 2 and 4. It is recommended
replacing these cartridges at least every 6 months.
You may need to replace more often with high
water usage or high sediment level. Timely
replacement of these cartridges will protect the
RO Membrane from high levels of chlorine and/or
sediment. As these lters build up with sediment,
you may notice slower water output.
RO Membrane Cartridge
- Change every 2 years
The RO Membrane is located in Stage 3. This
membrane reduces the dissolved solids and organic
matter. Most municipally treated water has a 7.0-7.5
pH, in this case you would need to replace your RO
Membrane every 2 years. Membrane life depends on
pH and supply water hardness. Higher pH shortens
membrane life by causing pin-hole leaks. When
output, water quality and production rate decrease,
it is time to replace the lter.
Remineralizer with Microbial Filter
- Change every 6 months*
Stage 5 performs two functions. First, the
Microbial Filter reduces bacteria, viruses and
cysts. Secondly, the Remineralizer is designed to
return healthy amounts of calcium, magnesium
and potassium in the water.
*Filter life depends on water usage and water
supply quality.
Operational Notes
Filter Changes
13
The system must not be allowed to freeze while
containing water. If the unit does freeze while in
normal operating conditions, the expanding ice
will damage the lter elements, compromising the
safety of the ltered water, and can cause physical
damage to the unit itself, including bursting the
tubing, ttings or lter housings and damage to
the pump and storage tank. If the unit is going to
be stored over winter and exposed to temperatures
below freezing, it should be prepared as follows:
1 Drain the storage tank:
• Turn off the cold-water inlet valve to the system.
• Ensure the storage tank valve is open.
• Turn on the dispensing faucet and allow it to
run until water stops owing. During this time,
the low-pressure alarm will trigger. Disregard
the alarm and let the unit run until water stops
owing from the faucet. At this point, the
storage tank should be empty.
2 Disconnect power from the system.
3 Remove the lter cartridges
(stages 1, 2, and 4):
• Place a tray underneath the System Manifold
to catch drips.
• Use the housing wrench supplied with the
system to loosen and remove the lter
housings from the System Manifold.
• Pour any water out of the housings and
remove the lter cartridges.
• Dispose of the used lter cartridges.
Long-term storage of the cartridges can
lead to contamination that can cause an
unsafe condition when the system restarts.
Replace with new lter cartridges before
restarting the system.
• Check that both O-rings are assembled to
the lter housings.
• Thread the housings back onto the
System Manifold and tighten with
the housing wrench.
Do not use with water that is microbiologically unsafe or
of unknown water quality without adequate disinfection
before or after the system. Systems certied for cyst
reduction may be used on disinfected waters that may
contain lterable cysts.
WARNING
Use only the supplied housing wrenches to
remove or tighten sumps. Over-tightening
can cause damage and result in leaking.
Deactivating System
• The unit will often continue to produce
puried water after you have turned off the
faucet. The system monitors the pressure in
the storage tank and will keep it lled to the
required level.
• After installation, the TDS value of the ltered
water may be slightly higher than expected.
As you use the system, the TDS value will
decrease until the system stabilizes.
• The air gap faucet will make noise when the
unit is producing treated water. However, no
water should leak out of the vent hole in the
back of the faucet during operation. If water
leaks out of the air gap vent, turn off the unit
and check the drain lines for kinks or clogs.
4 Remove the RO Membrane:
• Remove the cover from the System Manifold
and locate the RO housing.
• Snap the RO housing loose from its
mounting brackets.
• Disconnect the white tubing from the
RO housing cap.
• Use the small housing wrench to remove the RO
housing cap. Note that water will be trapped in
the RO housing. Position the housing so that the
water is captured in a drip tray or bucket.
• Remove and dispose of the old RO Membrane.
Long-term storage of the RO Membrane can
lead to contamination that can cause an unsafe
condition when the system restarts. Replace with
a new membrane before restarting the system.
• Ensure the RO housing O-ring is seated correctly
and is not damaged.
• Screw on the housing cap. Use the small
wrench to tighten it about 1/4 turn.
• Reconnect the white tubing to the inlet
tting on the cap.
• Snap the cap into position in the system
manifold.
5 Remove the Remineralizer Cartridge:
• Disconnect the connector elbows from the
Remineralizer inlet and outlet.
• Remove and dispose of the old Remineralizer
Cartridge. Long term storage of the cartridge can
lead to contamination that can cause an unsafe
condition when the system restarts. Replace with
a new unit before restarting the system.
6 Ensure the unit is unplugged and the cold-water
supply line is turned off while the unit is stored.
To reactivate the system, install the new RO
Membrane, Remineralizer Cartridge and Filter
Cartridges (see the instructions included with the
replacement elements), then start the system by
following the initial startup procedure.

NEED HELP? GIVE US A CALL 833.232.9711 NEED HELP? GIVE US A CALL 833.232.9711
Arsenic (abbreviated As) is found naturally in some
well water. Arsenic in water has no color, taste or
odor. It is measured by a laboratory test. Public
water utilities must have their water tested for
arsenic. You can get the results from your water
utility. If you have your own well, you can have
the water tested. The local health department
or the state environmental health agency can
provide a list of certied labs. The cost is typically
$15 to $30. Information about arsenic in water
can be found on the internet at the U.S.
Environmental Protection Agency website:
epa.gov/safewater/arsenic.
There are two forms of arsenic:
pentavalent arsenic (As(V), As(+5), and arsenate)
and trivalent arsenic (also called As(III), As(+3), and
arsenite). In well water, arsenic may be pentavalent,
trivalent, or a combination of both. Special sampling
procedures are needed for a lab to determine what
type and how much of each type of arsenic is in the
water. Check with the labs in your area to see if they
can provide this type of service.
Reverse Osmosis (RO) water treatment systems
do not completely remove trivalent arsenic from
water. RO systems are very effective at removing
pentavalent arsenic.
A free chlorine residual will rapidly convert
trivalent arsenic to pentavalent arsenic. Other water
treatment chemicals such as ozone and potassium
permanganate will also change trivalent arsenic to
pentavalent arsenic. A combined chlorine residual
(also called chloramine) may not convert all the
trivalent arsenic. If you get your water from a public
water utility, contact the utility to nd out if free
chlorine or combined chlorine is used in the water
system. The AO-US-RO-MB-6000 System is designed
to remove pentavalent arsenic. It will not convert
trivalent arsenic to pentavalent arsenic. This System
was tested in a lab. Under testing conditions, system
reduced [0.30 mg/L (ppm) or 0.050 mg/L (ppm)]
pentavalent arsenic to 0.010 mg/L (ppm) (the USEPA
standard for drinking water) or less. The perfor-
mance of system may be different with your instal-
lation. Have the treated water tested for arsenic to
check whether the system is working properly.
The RO component of the AO-US-RO-MB-6000
System must be replaced every 2 years to ensure the
system will continue to remove pentavalent arsenic.
The component identication and locations where
you can purchase the component are listed in the
installation/operation manual.
This system has been tested for the treatment of water containing pentavalent arsenic
(also known as As(V), As(+5), or arsenate) at concentrations of 0.30 mg/L or less. This
system reduces pentavalent arsenic, but may not remove other forms of arsenic. This
system is to be used on water supplies containing a detectable free chlorine residual
at the system inlet or on water supplies that have been demonstrated to contain only
pentavalent arsenic. Treatment with chloramine (combined chlorine) is not sufcient to
ensure complete conversion of trivalent arsenic to pentavalent arsenic. Please see the
Arsenic Facts section of this Performance Data Sheet for further information.
This system is acceptable for treatment of inuent concentration of no more than
27 mg/L nitrate and 3 mg/L nitrite in combination measured as N; and is certied
for nitrate/nitrite reduction only for water supplies with a pressure of 40 psig
(275 kPa) or greater.
• Efciency rating is the percentage of
the inuent water to the system that is
available to the user as reverse osmosis
treated water under operating conditions
that approximate typical daily usage.
• Recovery rating is the percentage of the
inuent water to the membrane portion of
the system that is available to the user as
reverse osmosis treated water when the
system is operated without a Storage Tank
or when the Storage Tank is bypassed.
Arsenic Facts
Nitrate/Nitrite Removal
SYSTEM SPECIFICATIONS 15
As
33
Arsenic
NO3-
NO2-
Organic chemicals included by surrogate testing
VOCs
(by surrogate testing
using chloroform)
Drinking water
regulatory level (MCL/
MAC) mg/L
Inuent/
Unltered
Efuent/
Filtered
Percent
Reduction
alachlor 0.002 0.050 0.001 >98%
atrazine 0.003 0.100 0.003 >97%
benzene 0.005 0.081 0.001 >99%
carbofuran 0.04 0.190 0.001 >99%
carbon tetrachloride 0.005 0.078 0.0018 98%
chlorobenzene 0.1 0.077 0.001 >99%
chloropicrin —0.015 0.0002 99%
2,4-D 0.07 0.110 0.0017 98%
dibromochloropropane (DBCP) 0.0002 0.052 0.00002 >99%
o-dichlorobenzene 0.6 0.080 0.001 >99%
p-dichlorobenzene 0.075 0.040 0.001 >98%
1,2-dichloroethane 0.005 0.088 0.0048 95%
1,1-dichloroethylene 0.007 0.083 0.001 >99%
cis-1,2-dichloroethylene 0.07 0.170 0.0005 >99%
trans-1,2-dichloroethylene 0.1 0.086 0.001 >99%
1,2-dichloropropane 0.005 0.080 0.001 >99%
cis-1,3-dichloropropylene — 0.079 0.001 >99%
dinoseb 0.007 0.170 0.0002 99%
endrin 0.002 0.053 0.00059 99%
ethylbenzene 0.7 0.088 0.001 >99%
ethylene dibromide (EDB) 0.00005 0.044 0.00002 >99%
haloacetonitriles (HAN)
bromochloroacetontrile —0.022 0.0005 98%
dibromoacetontrile —0.024 0.0006 98%
dichloroacetontrile —0.0096 0.0002 98%
trichloroacetontrile —0.015 0.0003 98%
haloketones (HK)
1,1-dichloro-2-propanone —0.0072 0.0001 99%
1,1,1-trichloro-2-propanone —0.0082 0.0003 96%
heptachlor (H-34, Heptox) 0.0004 0.025 0.00001 >99%
heptachlor epoxide 0.0002 0.0107 0.0002 98%
hexachlorobutadiene —0.044 0.001 >98%
hexachlorocyclopentadiene 0.05 0.060 0.000002 >99%
lindane 0.0002 0.055 0.00001 >99%
methoxychlor 0.04 0.050 0.0001 >99%
pentachlorophenol 0.001 0.096 0.001 >99%
simazine 0.004 0.120 0.004 >97%
styrene 0.1 0.150 0.0005 >99%
1,1,2,2-tetrachloroethane —0.081 0.001 >99%
tetrachloroethylene 0.005 0.081 0.001 >99%
toluene 10.078 0.001 >99%
2,4,5-TP (silvex) 0.05 0.270 0.0016 99%
tribromoacetic acid —0.042 0.001 >98%
1,2,4-trichlorobenzene 0.07 0.160 0.0005 >99%
1,1,1-trichloroethane 0.2 0.084 0.0046 95%
1,1,2-trichloroethane 0.005 0.150 0.0005 >99%
trichloroethylene 0.005 0.180 0.0010 >99%
trihalomethanes (THMs) Inuent/
Unltered Efuent/ Filtered Percent Reduction
bromodichloromethane (THM)
0.080 0.300 0.015 95%
bromoform (THM)
chloroform (THM)
chlorodibromomethane (THM)
xylenes (total) 10 0.070 0.001 >99%
NSF/ANSI 42 Minimum Reduction Overall% Reduction Results
Chlorine Reduction, Free Available <0.5 mg/l 60.20% Pass
Particulate Reduction 85% 99.8% Pass
NSF/ANSI 53 Minimum Reduction Overall% Reduction Results
Cyst Live Cryptosporidium & Giardia 99.95% >99.95% Pass
Mercury Reduction pH 8.5 <2 ug/L >96.7% Pass
Mercury Reduction pH 6.5 <2 ug/L >96.6% Pass
Lead Reduction pH 6.5 <10 ug/L >99.4% Pass
Lead Reduction pH 8.5 <10 ug/L >99.3% Pass
MTBE Reduction <5 ug/L 86.6% Pass
Turbidity <0.5 NTU 99.1% Pass
VOC Surrogate Test 95% 99.4% Pass
Asbestos 99% >99% Pass
NSF/ANSI 58 Maximum Concen-
tration
Minimum
Reduction Overall% Reduction Results
Arsenic Pentavalent 0.30mg/L ± 10% 80.0% 98.0% Pass
Barium 10.0mg/L ± 10% 80.0% 97.2% Pass
Cadmium 0.30mg/L ± 10% 83.3% 98.2% Pass
Chromium Hexavalent 0.30mg/L ± 10% 66.7% 98.2% Pass
Chromium Trivalent 0.30mg/L ± 10% 66.7% 97.6% Pass
Copper 0.30mg/L ± 10% 56.7% 98.8% Pass
Fluoride 8.0mg/L ± 10% 81.2% 96.5% Pass
Lead .15mg/L ± 10% 93.3% 96.6% Pass
Nitrate/Nitrite 30.0mg/L ± 10% 66.7% 95.9% Pass
Selenium 0.10mg/L ± 10% 50.0% 98.0% Pass
TDS 750mg/L ± 10% 75.0% 96.7% Pass
Turbidity 11 ± NTU 95.4% 99.1% Pass
NSF/ANSI 401 Maximum
Concentration Minimum Reduction Overall% Reduction Results
Atenolol 30 ng/L 94.2% 94.2% Pass
Bisphenol A 300 ng/L 98.80% 98.9% Pass
Carbamazepine 200 ng/L 98.6% 98.6% Pass
DEET 200 ng/L 98.7% 98.7% Pass
Estrone 20 ng/L 96.30% 96.5% Pass
Ibuprofen 60 ng/L 95.3% 95.4% Pass
Linuron 20 ng/L 96.6% 96.6% Pass
Meprobamate 60 ng/L 94.7% 94.7% Pass
Metolachlor 200 ng/L 98.6% 98.6% Pass
Naproxen 20 ng/L 96.3% 96.4% Pass
Nonyl phenol 200 ng/L 97.50% 97.5% Pass
Phenytoin 30 ng/L 95.50% 95.6% Pass
TCEP 700 ng/L 98% 98% Pass
TCPP 700 ng/L 97.8% 97.8% Pass
Trimethoprim 20 ng/L 96.7% 96.7% Pass
NSF P473 Inuent challenge
concentration
Maximum permissible
concentration
Overall%
reduction Results
Peruorooctanoic
acid (PFOA) &
Peruorooctane
sulfonate (PFOS)
1.5 ±10% ug/L 0.07 ug/L 95.8% Pass
System Tested and Certied by NSF International against
NSF/ANSI Standards 42, 53, 58 & 401 and conforms to
NSF protocol P473 for reduction of claims specied on the
Performance Data Sheet and at www.nsf.org.
For use with municipally treated water only. Do not use with
water that is microbiologically unsafe or of unknown water
quality without adequate disinfection before or after the System.
Filter is only to be used with cold water.
Filter usage must comply with all state and local laws.
Testing was performed under standard laboratory
conditions, actual performance may vary.
Systems certied for cyst reduction may be used on
disinfected waters that may contain lterable cysts.
See owner’s manual for general installation conditions
and needs plus manufacturer’s limited warranty.
• All contaminants reduced by this lter are listed.
• Not all contaminants listed may be present in your water.
• Does not remove all contaminants that may be present in tap water.
Testing Performed under NSF/ANSI Standards 42, 53, 58, 401 & P473 and in accordance with the California Department of Health Services
Drinking Water Treatment Device Program.This System has been tested according to NSF/ANSI 42, 53, 401 & P473 for reduction of the
substances listed below. The concentration of the indicated substances in water entering the System was reduced to a concentration less than or
equal to the permissible limit for water leaving the System, as specied in NSF/ANSI 42, 53, 58, 401 & P473.
Performance Data for the Drinking Water System AOW-4000
Manufactured by: A. O. Smith Corporation 11270 West Park Place | Milwaukee, WI 53224 | 877.333.7108
Models Replacement Operating
pressure range
Operating temp.
range
Recovery
rating
Efciency
rating
Daily
Production (DPR)
AOW-4000 AOW-4000-CARBON and
AOW-4000-MEM 40-100 psi 275-689 kPa 40-100° F 5-37° C 47.66% 37.64% 83.93 gallons 317 liters
PERFORMANCE DATA SHEET14
Remineralizer with Microbial Filter is Tested and
Certied by IAPMO R&T Lab and IAPMO R&T against NSF
Protocol P231 as veried and substantiated by test data.
El remineralizador con refuerzo microbiano está probado y certicado
por IAPMO R&T Lab y IAPMO R&T según el protocolo P231 de NSF
según se verica y corrobora mediante los datos de prueba.
COMPONENT

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SYSTEM SPECIFICATIONS
16
AOW-4000
Replacement cartridge AOW-4000-CARBON
and AOW-4000-MEM
System Production 83.93 gpd (317 lpd)
TDS Reduction 96.7% + average
Max TDS 1000 ppm
Max water hardness 26 gpg (450 ppm)
Max Chlorine in water 3.0 ppm
Supply water pH limits 4-10
Drain (reject water) ow 1-2x product ow
Empty storage tank precharge 5-7 psi air (35-48 kPa)
Storage tank capacity 3.2 gallons (12.11 liters)
Supply water pressure limits 40-100 psi (275-689 kPa)
Supply water temp. limits 40-100 degrees F (5-37 degrees C)
Efciency 37.64%
Recovery 47.66%
CAPACITY AT VARIOUS WATER PRESSURE LEVELS (WITH 5 PSI PRECHARGE) U.S. GALLONS
TOTAL VOLUME 20 PSI 30 PSI 40 PSI 50 PSI 60 PSI 70 PSI
3.2 1.4 1.8 2.0 2.2 2.4 2.5
NON-POTABLE WATER SOURCES: Do not attempt to use this product to make safe drinking water from non-potable water sources. Do not use the system on
microbiologically unsafe water, or water of unknown quality without adequate disinfection before or after the system.This system is certied for cyst reduction and
may be used on disinfected water that may contain lterable cysts.
INSTALLATIONS IN THE COMMONWEALTH OF MASSACHUSETTS: The Commonwealth of Massachusetts requires installation be performed by a licensed
plumber and does not permit the use of saddle valves. Plumbing code 248—CMR of the Commonwealth of Massachusetts must be followed in these cases.
Do not use with water that is microbiologically unsafe or of unknown water quality without adequate disinfection before or after the system.
Systems certied for cyst reduction may be used on disinfected waters that may contain lterable cysts.
Filter is only to be used with cold water. Systems certied for cyst reduction may be used on disinfected water that may contain lterable cysts.
17
Safeguards
• Use only cold water with lter.
• If you experience a hose connection
leak, disconnect and re-seat the hose.
• When you use the system for the rst time,
it will ush the preservative solution from
the RO Membrane and small carbon particles
from the lter cartridges. This may cause a
slight discoloration of the water. As you ush
the system (see startup instructions), this
discoloration will end.
• It is possible for the unit to become
contaminated if it is not operated for a long
period of time. To prevent this from happening,
the system will perform an automatic ush if it
sits idle for three days.
• Disconnect the power and shut off the water
supply before xing any leaks in the system.
• Do not allow the system to freeze. See
deactivating system in this manual.
Specications – Qualied System Performance
Because the performance of a Reverse Osmosis
Membrane is highly dependent upon pressure,
temperature and Total Dissolved Solids (TDS),
the following should be used for comparison
purposes only.
Industry standards measure RO Membranes
performance with no back pressure on the product
water, at 60 psig (414 kPa) and 77°F (25°C). Further
conditions on the above are 250 ppm TDS and a
30.6% recovery rate. Production rate and TDS
reduction gures are for a new Membrane that
has been rinsed for 24 hours. The production rate
of a new Membrane can decrease by 10% per year
or more, depending upon the scaling and fouling
tendencies of the Feed Water.
TDS Reduction measured at 50 psi, 77°±2°F,
and 717 mg/l TDS per NSF/ANSI Standard 58.
Efciency rating is the percentage of the inuent
water to the system that is available to the
user as reverse osmosis treated water. This
measurement is taken under operating
conditions that approximate typical daily usage.
Recovery rating is the percentage of the inuent
water to the membrane portion of the system that
is available to the user as reverse osmosis treated
water when the system is operated without a
storage Tank or when the Storage Tank is bypassed.
Flow rate and output are determined
by 3 factors:
1Incoming water temperature
2 Total dissolved solids (TDS) present in
supply water
3 Incoming water pressure
Lower temperatures are directly proportional to
slower ow rate. All membranes are tested at 77°F.
Incoming water temperature should not exceed
100°F. The RO Filter System should also not be
installed in a location susceptible to freezing. The
more TDS in the supply water, the more lter time
is required. Incoming TDS should not exceed 1000
ppm. Higher water pressure enables a higher ow
rate. Pressure must be above 20 psi for proper sys-
tem operation. The system includes an
integral booster.
Cleaning
To clean your lter unit, wipe down the
exterior with a damp cloth.

NEED HELP? GIVE US A CALL 833.232.9711
What is covered:
This warranty covers defects in materials
or workmanship in manufacturing of
your A. O. Smith drinking water Filtration
Systems, except as provided below.
For how long:
This warranty runs for two years from
the date of purchase by a consumer
(“Warranty Period”).
What is not covered:
This warranty does not cover lter
cartridges and any products that were
not installed in compliance with the
instructions or that have been abused
or operated incorrectly. The limited
warranty stated herein is in lieu of any
and all warranties, expressed or implied,
whether written or oral, including but
not limited to the implied warranties of
tness for a particular purpose or the
implied warranty of merchantability.
A. O. Smith shall not be liable for any
incidental, consequential, special or
contingent damages arising directly or
indirectly from any defect or the use of
the System. Owner shall be responsible for
all labor and any other expenses related
to the removal, repair or installation of
the Filtration System or any component
part. Finally, this warranty is voided if the
product is used with parts that are not
genuine A. O. Smith parts. This includes,
but is not limited to: replacement lters,
faucets, and diverter valves.
What A. O. Smith will do:
We will replace the defective part of
the covered product and send it to
you with installation instructions upon
payment of $9.50 for shipping and
handling per incident.
How to get service:
To receive service under this
warranty, you must contact
A. O. Smith at 833.232.9711 or
[email protected] within
the Warranty Period and describe
the problem to a customer service
representative who will verify
that the product is under warranty
and arrange for delivery of a
replacement part.
How state law applies:
This warranty gives you specic rights but
you may have other rights which vary from
state to state.
Some states do not allow the exclusion
or limitation of implied warranties or
incidental or consequential damages,
so the above limitation or exclusion
may not apply to you.
LIMITED WARRANTY
A. O. Smith Corporation P.O. Box 1597 | Johnson City, TN 37605-1597 | 833.232.9711
2
YEAR
AOW-4000
REVERSE OSMOSIS
con ltro microbiano y bomba
TABLA DE CONTENIDO
Contenido de la caja ........................................................................................................................20
Guía de instalación..................................................................................................................... 22-31
Arranque inicial................................................................................................................................32
Sensores digitales.............................................................................................................................34
Cuidado y mantenimiento......................................................................................................... 35-36
Hoja de datos de rendimiento ........................................................................................................37
Especicaciones del sistema ...................................................................................................... 38-40
Garantía............................................................................................................................................41
A. O. Smith diseñó este sistema de ltración minuciosamente para usted para que cuente
con la ltración Claryum®y de Osmosis inversa que disminuyen los contaminantes dañinos,
aquellos que puede y no puede ver, oler y sentir su sabor, sin usar aditivos químicos. Sin
importar para qué necesite el agua, para hidratarse, cocinar, para el café de la mañana, los
batidos o una sopa, ahora tendrá agua ltrada.
Conserve este manual del propietario como referencia para la instalación, resolución de
problemas e información de cambio del ltro.
18 19

CONTENIDO DE LA CAJA20
• Taladro de velocidad variable
con broca de 1/4" (para
perforar un oricio en la
tubería de drenaje de PVC)
• Llaves de boca (11⁄16", 13/16",
1"), llaves ajustables o alicates
• Destornillador Phillips
• Tijeras o cuchilla
• Toalla y cubeta
• Grasa de silicio de grado
alimenticio (opcional)
• Llaves para el cartucho de ltro
(se incluyen con el sistema)
Nota: Recomendamos llamar a un profesional
autorizado o certicado si es que se necesita
perforar. Se recomienda tener conocimiento básico
de plomería ante de instalar esta unidad.
21
Lea todo el manual antes de la instalación para asegurarse
de que todas las piezas indicadas estén presentes.
Si falta una pieza o alguna está dañada, llámenos para
avisarnos al 833.232.9711. No intente instalar el ltro.
Herramientas recomendadas para la instalación:
N CINTA DE TEFLÓN
O DETECTOR DE FUGAS
P LLAVES PARA LA CARCASA
Q ADAPTADOR DE ALIMENTACIÓN DE
AGUA
R ABRAZADERA DEL DRENAJE CON
PIEZAS DE INSTALACIÓN
S SOPORTE DE MONTAJE DEL
REMINERALIZADOR
T TORNILLOS DE MONTAJE (PARA EL
SOPORTE DEL REMINERALIZADOR Y
EL COLECTOR DEL SISTEMA)
U TUBO
V AMARRES PARA CABLES
W BLOQUEOS DE CONECTORES DE
CONEXIÓN RÁPIDA DE REPUESTO
X CODO REDUCTOR ACCESORIOS (2)
A CUBIERTA DEL SISTEMA
B CARCASAS DE FILTROS (3)
C COLECTOR DE OI
D LLAVE CON PIEZAS DE INSTALACIÓN
E TANQUE DE ALMACENAMIENTO
F SOPORTE DEL TANQUE
G VÁLVULA DE CIERRE DEL TANQUE
PREFILTER
H PREFILTRO
I CARBÓN
J CLARYUM®
K MEMBRANA
L REMINERALIZADOR CON FILTRO
MICROBIANO
M JUNTAS TÓRICAS DE LA
CARCASA DEL FILTRO

GUÍA DE INSTALACIÓN
22 23
Prepare el lugar y planique la instalación
Antes de la instalación, lea todo el manual para familiarizarse con el sistema y determinar la mejor
ubicación para la instalación. Asegúrese de revisar y cumplir con todos los códigos de plomería locales.
PASO 1: Ubicación del sistema y el tanque
2 Seleccione la ubicación para el colector del
sistema de OI, el remineralizador y el tanque
de almacenamiento. Coloque temporalmente
los componentes en la ubicación deseada para
garantizar que haya espacio suciente y un
posicionamiento correcto. Deje una separación
como mínimo de 76mm (3") entre el suelo y
la parte inferior de las carcasas de los ltros
para que quede un espacio amplio para los
cambios de ltro. Para calcular la ubicación
adecuada para el colector del sistema, monte
temporalmente las carcasas de los ltros en el
colector como referencia.
PERFORE DOS ORIFICIOS DE 3mm (1/8") DE
DIÁMETRO E INSTALE DOS TORNILLOS DE MONTAJE
N.°10 PARA COLGAR EL COLECTOR DEL SISTEMA
102mm
(4.0") MÍNIMO
76mm
(3.0")
MÍNIMO
457mm (18") MÍNIMO
RESPECTO DEL SUELO
1 Este sistema está diseñado para ser instalado
bajo el fregadero; sin embargo, sin importar
dónde se instale, requiere acceso a un
suministro de agua fría, una tubería de drenaje
y una alimentación de 120 voltios CA. Asegúrese
de que el suministro de alimentación esté
correctamente conectado a tierra y que cumpla
todos los requisitos del código eléctrico. Una
instalación remota debe estar lo bastante cerca
como para que no se necesiten más de 5m
(15pies) de tubo entre el sistema de OI y la
llave. El sistema de OI no se debe colocar a más
de 3m (10pies) bajo la llave. Una distancia o
diferencia excesiva de altura reducirá el caudal
del agua tratada. Según la distancia entre el
sistema y la llave, podría necesitar más tubo
para instalar el sistema. De ser necesario, use un
tubo de polietileno para agua potable con un
diámetro exterior de 1/4".
3 La placa trasera del colector del sistema
incluye dos ranuras de tipo bocallave que
se usan para colgar la unidad en una pared
con dos (2) tornillos de montaje n.°10. Los
tornillos se deben atornillar en una supercie
capaz de soportar el peso del sistema. Para
las instrucciones a continuación, se asume
que usted montó la unidad en la pared de
un gabinete. Si la montará en un muro en
seco o una supercie similar, use los anclajes
correspondientes.
4 Marque la ubicación de los tornillos de montaje
en la pared de acuerdo con el diagrama que se
muestra a continuación. Asegúrese de que los
oricios estén lo más nivelados posible.
5 Perfore dos oricios piloto para los tornillos de
montaje con una broca de 1/8".
6 Inserte dos tornillos n.°10 en los oricios de
montaje; deje aproximadamente 10mm (3/8")
expuestos de cada tornillo.
7 Cuelgue el colector del sistema en los tornillos
de montaje. Durante la instalación, puede
retirar temporalmente la unidad de la pared
para acceder con mayor facilidad a diversos
componentes.
CONSEJO Coloque temporalmente el colector del sistema,
el remineralizador y el tanque dentro del gabinete bajo el
fregadero o ubicación deseada para garantizar un espacio
adecuado y un posicionamiento correcto.
CALIENTE FRÍA

24
PASO 2: Conexión de la válvula de alimentación de agua
PASO 3: Instalación del tanque
PARA CONECTAR:
1 Este sistema trae un tubo de instalación. Para instalar
el tubo, mida la longitud necesaria y córtelo.
2 Con una cuchilla, haga un corte derecho y alineado
en cada tubo. Mida 19mm (3/4") desde el extremo y
marque con un rotulador permanente.
3 Retire el sujetador de bloqueo e inserte el tubo en
el manguito de bloqueo hasta que la marca esté a
punto de desaparecer. Vuelva a instalar el sujetador
de bloqueo.
PARA DESCONECTAR:
1 Retire el sujetador de bloqueo.
2 Empuje cuidadosamente el manguito de
bloqueo hacia abajo contra el cuerpo del
conector.
3 Mantenga abajo el manguito de bloqueo y
tire del tubo para retirarlo.
Este sistema cuenta con conectores de conexión rápida.
1 Corte el suministro de agua fría
hacia el fregadero.
2Abra la llave de agua fría de la cocina para
liberar la presión y permitir que el agua
salga de la tubería.
1 Aplique 4 o 5 vueltas hacia la derecha de la cinta de
Teón alrededor del niple en la parte superior del
tanque, en la misma dirección que las roscas.
2 Atornille a mano la válvula de cierre del tanque
en las roscas. No apriete en exceso.
3 Coloque el tanque en su soporte y póngalo
en la ubicación deseada.
3Desconecte la tubería del conector de la llave
de suministro de agua fría. Coloque una toalla
debajo para atrapar el agua que gotea.
4Congure la válvula de alimentación de
agua para que coincida con la conexión en el
suministro de agua fría.
5Ajuste la válvula de alimentación de agua al
suministro de agua fría. Vuelva a conectar la
tubería del conector de la llave a la válvula de
suministro de agua fría de alimentación.
Nota: No apriete en exceso.
ADAPTADOR DE
ALIMENTACIÓN DE AGUA
VÁLVULA DE
CIERRE DEL
TANQUE
25
PASO 4: Instalación del conector de drenaje
1 Identique la ubicación de la salida de
drenaje. No instale el conector de drenaje en
la misma tubería de drenaje que el triturador
de desperdicios de comida. Si tiene que
instalar la tubería de drenaje en la misma
tubería que el triturador de desperdicios
de comida, no use el conector de drenaje que
se incluye. Se recomienda un conector para
triturador de desperdicios de comida.
2 Retire la cubierta protectora
de la parte posterior del
sello de espuma (N).
3 Abra el oricio central,
alinee los oricios e
instálelo en la placa
delantera del conector
de drenaje (L).
4 Use el conector de drenaje para marcar la
ubicación de perforación en la tubería de
drenaje. Perfore un oricio de 6mm (1/4") en la
tubería de drenaje. No penetre el lado opuesto
de la tubería.
5 Coloque el conector de drenaje en la tubería de
drenaje del fregadero, sobre el sifón de drenaje,
y deje espacio para perforar.
6 Apriete rmemente las tuercas (M) y los
tornillos (M).
1 El remineralizador con cartucho de ltro
microbiano se instala en la tubería de salida
entre el sistema y la llave dispensadora. El
cartucho se debe instalar de manera vertical con
la salida orientada hacia arriba.
2 Atornille el soporte del cartucho a la pared.
3 Inserte un codo reductor en la entrada y en la
salida del cartucho.
4 Coloque el cartucho en el soporte.
PASO 5: Instalación del remineralizador
con cartucho de ltro microbiano
M
N
LM
GUÍA DE INSTALACIÓN
CONSEJO
Si hay una fuga desde el soporte de drenaje, suelte los pernos
y deslice el soporte hacia arriba, de modo que el oricio
perforado quede abajo del puerto del conector de drenaje.
TUBERÍA DE
DRENAJE
SOPORTE
ORIFICIO
NUEVO
SOPORTE DE MONTAJE
CODO
CODO
CARTUCHO DEL
REMINERALIZADOR
TORNILLO DE MONTAJE
CALIENTE FRÍA
CALIENTE FRÍA

26
PASO 6: Instalación de la llave dispensadora
1 La llave dispensadora requiere un oricio en el
mostrador o el fregadero. El oricio de montaje
debe tener entre 25mm y 35mm (1" y 1-3/8")
de diámetro. Use un oricio ya hecho o perfore
uno en la ubicación deseada.
2Instale la junta tórica de la llave en la muesca
de la parte inferior de la llave. Aplicar una
pequeña cantidad de grasa de silicio a la
junta tórica antes de la instalación ayudará a
mantenerla en su lugar durante el montaje.
3 Mida la cantidad de tubo que necesitará entre
la llave y la conexión de drenaje en el sistema
de OI. Corte un tubo de 1/4" del largo necesario
y presione un extremo de este hacia el conector
dentado más pequeño en la llave.
4 Mida la cantidad de tubo que necesitará entre
la llave y la abrazadera del drenaje. Corte un
tubo de 3/8" del largo necesario y presione un
extremo de este hacia el conector dentado más
grande.
5 Instale el escudo de la llave en la parte inferior
de la llave. Deslice el escudo con la junta sobre
la tubería de drenaje hasta que quede asentado
contra la llave.
6 Coloque las tuberías en el oricio de instalación
e inserte la llave en el oricio, con el lado
roscado hacia abajo.
7 Por debajo del fregadero, deslice la
arandela hendida, el separador y la arandela
de seguridad para colocarlos en las roscas
de la base de la llave y apriételos con la
tuerca de seguridad.
8 Instale el adaptador del tubo de conexión
rápida en las roscas de la base de la llave.
27
ADVERTENCIA Asegúrese de que todos los
artefactos eléctricos y tomacorrientes estén
apagados desde el disyuntor antes de realizar
trabajos en el área del gabinete.
PRECAUCIÓN Use gafas de seguridad para
proteger sus ojos mientras perfora.
ESCUDO
JUNTA DEL
ESCUDO
JUNTA TÓRICA DE LA LLAVE
ARANDELA
HENDIDA
SEPARADOR
ARANDELA DE
SEGURIDAD TUERCA DE SEGURIDAD
ADAPTADOR DEL
TUBO
GUÍA DE INSTALACIÓN
NOTA: Además de dispensar el agua tratada, la llave incluye
un entrehierro que evita que el agua insalubre del drenaje
del hogar uya de regreso a la unidad de OI. Los conectores
dentados en la llave conectan el entrehierro a las tuberías de
drenaje del sistema de OI.

2928 GUÍA DE INSTALACIÓN
PASO 8: Conexión del sistema
PASO 9: Instalación de los cartuchos de los ltros
PASO 7: Instalación de la membrana de osmosis inversa
1 Retire la cubierta del colector del sistema.
2 Encuentre el conector eléctrico de la pantalla del sistema y
conéctelo al tablero de control ubicado dentro de la cubierta.
Use el diagrama para determinar el conector correcto.
3 El sistema incluye un detector de fugas que activará una alarma
si detecta una fuga. Retire el detector de fugas de la caja y
desenrolle el cable incluido. Introduzca el cable del detector
de fugas por el oricio hasta la esquina inferior izquierda del
colector del sistema y conéctelo al tapón correspondiente que
se encuentra en el colector del sistema. Coloque el detector de
fugas en la base del gabinete bajo el sistema, con los caracteres
de A.O. Smith orientados hacia arriba.
4 Coloque la cubierta en el colector del sistema y vuelva a colgar
el colector en los tornillos de montaje dentro del gabinete
según sea necesario.
1 Instale dos (2) juntas tóricas en cada una de las
tres (3) carcasas de los ltros. Una de las juntas
tóricas cabe en la muesca de la parte superior
de las carcasas y la otra cabe en la muesca de la
parte externa de las carcasas, sobre las roscas de
montaje.
2 Retire todos los cartuchos de los ltros y todos
los materiales de empaque de las carcasas de
los ltros. Desenvuelva el cartucho del preltro
n.°1. Colóquelo en la carcasa del preltro n.°1.
Manténgalo centrado en la carcasa e instale la
carcasa en la tapa del ltro en la posición más a
la derecha. Gírelo hacia la derecha a mano y use
la llave grande para la carcasa para apretarlo
aproximadamente 1/4 de vuelta.
1 Retire la cubierta del colector del sistema, si es
necesario, y ubique la carcasa de la membrana
de OI. Asegúrese de no dañar la membrana
cuando la saque del envase. Tenga en cuenta
que el envase de la membrana de OI contiene
una pequeña cantidad de solución conservante
diseñada para proteger la membrana durante el
almacenamiento y el envío.
También está envasada con dos cubiertas
transparentes en los extremos de la membrana.
Estas cubiertas solo se incluyen para proteger
los sellos de la membrana durante el envío y se
deben retirar y desechar antes de la instalación.
2 Desconecte el tubo blanco del conector de
conexión rápida de entrada en la carcasa de la
membrana de OI.
3 Destornille la tapa de la carcasa. Es posible que
necesite la llave más pequeña, que se incluye
con el sistema, para soltar la tapa.
4 Retire la membrana de la bolsa sellada. Inserte
la membrana en la carcasa. Tenga en cuenta
que un extremo de la membrana tiene dos
pares de juntas tóricas y el otro tiene un solo
par. Primero, inserte el extremo con los dos
pares de juntas tóricas en la carcasa. Presione
la carcasa cuidadosamente hasta que quede
asentada. No use demasiada fuerza para colocar
la membrana.
5 Asegúrese de que la junta tórica de la carcasa
de OI esté bien asentada.
6 Atornille la tapa de la carcasa. Use la llave
pequeña para apretarla aproximadamente 1/4
de vuelta.
7 Vuelva a conectar el tubo blanco al conector
de conexión rápida de entrada en la tapa.
3 Desenvuelva el cartucho del preltro de carbón
n.°2. Colóquelo en la carcasa del preltro
n.°2. El extremo del cartucho con las juntas
tóricas debe estar orientado hacia arriba en la
carcasa. Instale la carcasa en la posición central
en la unidad de OI. Asegúrese de alinear el
centro del cartucho con el centro del encastre.
Gire la carcasa hacia la derecha a mano y use
la llave grande para la carcasa para apretarla
aproximadamente 1/4 de vuelta.
4 Desenvuelva el cartucho del ltro de Claryum®
n.°4. Colóquelo en la carcasa del posltro
n.°4. El extremo del cartucho con las juntas
tóricas debe estar orientado hacia arriba en la
carcasa. Instale la carcasa en la posición central
en la unidad de OI. Asegúrese de alinear el
centro del cartucho con el centro del encastre.
Gire la carcasa hacia la derecha a mano y use
la llave grande para la carcasa para apretarla
aproximadamente 1/4 de vuelta.
ADVERTENCIA: Recomendamos llamar a un profesional autorizado o certicado.
La instalación adecuada es responsabilidad del instalador. La garantía no cubre
fallas del producto debido a una instalación incorrecta.
NO USADO
CONECTAR A
PANTALLA DEL
SISTEMA
CONECTAR AL
DETECTOR DE
FUGAS
CARCASA DE OI
JUNTA TÓRICA DE LA CARCASA DE OI
MEMBRANA DE OI
(preste atención a la
orientación)
CUBIERTA DE OI

30 31GUÍA DE INSTALACIÓN
1 2
3
"
Profundidad para insertar los tubos
El diagrama tiene la dimensión real.
1 Conexión de suministro de agua
(tubo blanco de 1/4")
Use una parte del tubo blanco de 1/4" para
conectar el suministro de agua. Inserte un
extremo del tubo en el conector de la válvula
de entrada y el otro extremo en el conector de
“entrada” del colector del sistema.
4 Conexión de drenaje
Conecte el tubo blanco de 1/4" ya conectado al
entrehierro de la llave al colector del sistema.
Corte cualquier exceso de tubo e inserte el
extremo suelto del tubo en el conector del
“drenaje” del colector del sistema.
Conecte el tubo blanco de 3/8" ya conectado al
entrehierro de la llave al conector del drenaje.
Corte cualquier exceso de tubo e inserte el
extremo suelto del tubo en el conector del
drenaje que se conectó anteriormente a la
tubería de drenaje.
PASO 10: Conexión de los tubos
3 Conexión del tanque
(tubo blanco de 1/4")
Use una parte del tubo blanco de 1/4" para
conectar el colector del sistema al tanque
de almacenamiento. Inserte un extremo del
tubo en el conector del “tanque” del colector
del sistema y el otro extremo en la válvula
de cierre de la parte superior del tanque de
almacenamiento.
2 Conexión de salida
(tubo blanco de 1/4")
Use una parte del tubo blanco de 1/4" para
conectar el colector del sistema al cartucho del
remineralizador. Inserte un extremo del tubo en
el conector de “salida” del colector del sistema
y el otro extremo en el conector de “entrada”
del cartucho del remineralizador.
Use una segunda parte del tubo blanco de 1/4"
para conectar el cartucho del remineralizador
a la llave dispensadora. Inserte un extremo del
tubo en el conector de “salida” del cartucho
del remineralizador y el otro extremo en el
conector de suministro de la llave dispensadora.
CONEXIÓN DEL TANQUE DE ALMACENAMIENTO
HACIA LA TUBERÍA DISPENSADORA DE LA LLAVE (1/4")
HACIA LA TUBERÍA
DE DRENAJE
DESDE LA
TUBERÍA DE
AGUA FRÍA
HACIA LA
LLAVE
ETAPA 5
ETAPA 4 ETAPA 2 ETAPA 1
CONEXIÓN DE DRENAJE
CONEXIÓN DE ENTRADA
DE AGUA FRÍA
CONEXIÓN DEL TANQUE
DE ALMACENAMIENTO
CONEXIÓN
DE SALIDA (A
REMINERALIZADOR)
CALIENTE FRÍA

9 Cuando el tanque de almacenamiento esté
vacío, cierre la llave. El sistema seguirá
funcionando y volverá a llenar el tanque.
Repita el paso 8 para lavar el tanque una
vez más.
10 Después de lavar el tanque de almacenamiento
por segunda vez, cierre la llave dispensadora
y permita que la unidad llene nuevamente el
tanque con agua puricada. El sistema ya está
listo para un uso normal.
8 La unidad se desactivará cuando el tanque esté
lleno. El tanque se debe lavar dos veces en el
arranque inicial para eliminar las impurezas
residuales. Para vaciar el tanque, abra la llave
dispensadora y permita que el tanque se vacíe
completamente. El tanque está vacío cuando el
caudal de la llave disminuye de forma notoria.
32 33
7 Después de diez minutos, cierre la llave
dispensadora y abra la válvula del tanque. La
unidad seguirá funcionando y llenará el tanque
de almacenamiento con agua puricada.
Mientras la unidad esté en funcionamiento,
vuelva a vericar el sistema para encontrar
fugas.
PROCEDIMIENTO DE ARRANQUE INICIAL
1 Cierre la válvula del tanque de
almacenamiento.
6 Mientras la unidad esté en funcionamiento,
verique todas las conexiones para encontrar
fugas o goteos. Si hay fugas, cierre la válvula de
suministro de agua fría y desconecte el sistema
(mantenga la llave abierta). Corrija la conexión
que presente fugas, luego cierre la llave y
repita el procedimiento de arranque.
3 Encienda la unidad.
4 La unidad hará un lavado inicial; hará correr
agua por el sistema hacia el drenaje durante
18 segundos, se pausará para puricar el agua
durante 15 segundos y luego hará correr agua
hacia el drenaje durante otros 18 segundos.
5 Después de terminar el lavado inicial, abra la
llave dispensadora durante diez minutos para
permitir que el sistema lave y expulse cualquier
partícula restante.
2 Cierre la válvula de suministro de agua fría.
CALIENTE FRÍA

CUIDADO Y MANTENIMIENTO 35
Preltro, carbón y Claryum®:
Cambiar cada 6 meses*
Los cartuchos del preltro, el carbón y el ltro
de Claryum®se encuentran en las etapas 1, 2 y 4.
Se recomienda cambiar estos cartuchos al menos
cada 6 meses. Es posible que deba reemplazar
con más frecuencia en caso de un alto consumo
de agua o un alto nivel de sedimentos. El
reemplazo oportuno de estos cartuchos protegerá
la membrana de osmosis inversa contra altos
niveles de cloro o sedimentos. Ya que se acumulan
sedimentos en estos ltros, observará un caudal
de agua más lento.
Cartucho de la membrana de osmosis inversa:
Cambiar cada 2 años
La membrana de osmosis inversa se ubica en
la etapa 3. Esta membrana reduce los sólidos
disueltos y la materia orgánica. La mayor parte
del agua tratada municipal tiene un pH de 7.0
a 7.5; en este caso, se debería reemplazar la
membrana de osmosis inversa cada 2 años. La vida
útil de la membrana depende del pH y la dureza
del agua de suministro. El mayor pH causa fugas
por oricios diminutos y acorta la vida útil de la
membrana. Cuando la salida, la calidad del agua y
la velocidad de producción disminuyen, es tiempo
de reemplazar el ltro.
Remineralizador con ltro microbiano:
Cambiar cada 6 meses*
La etapa 5 realiza dos funciones. Primero, el ltro
microbiano reduce las bacterias, virus y quistes.
Segundo, el remineralizador está diseñado
para devolver cantidades saludables de calcio,
magnesio y potasio en el agua.
*La vida útil del ltro depende del uso de agua y
la calidad del suministro de agua.
Notas de funcionamiento
Cambios de ltro
ADVERTENCIA
Use solo las llaves para la carcasa proporcionadas
para retirar o apretar los sumideros. Apretar en
exceso puede causar daños y generar ltraciones.
• A menudo, la unidad seguirá produciendo
agua puricada después de que haya cerrado
la llave. El sistema monitorea la presión en el
tanque de almacenamiento y lo mantendrá
lleno hasta el nivel requerido.
• Después de la instalación, el valor de los TDS del
agua ltrada podría ser ligeramente superior al
esperado. A medida que use el sistema, el valor
de los TDS disminuirá hasta que el sistema se
estabilice.
• El entrehierro de la llave hará ruido cuando la
unidad produzca agua tratada. Sin embargo,
no debería ltrar agua por el respiradero
en la parte posterior de la llave durante
el funcionamiento. Si el agua ltra por el
respiradero del entrehierro, apague la unidad
y revise las tuberías de drenaje para buscar
torceduras u obstrucciones.
34
Hay un botón “Select” (Seleccionar) y un botón “Reset” (Restablecer) a los lados de la
pantalla. Estos botones se usan para restablecer la vida útil del ltro de un cartucho
después de que se reemplaza. Para restablecer la vida útil de un cartucho, presione el
botón “Select” hasta que el ícono del cartucho de ltro deseado parpadee. Cuando
haya seleccionado el cartucho correcto, mantenga presionado el botón “Reset” durante
tres segundos. Si cambiará más de un cartucho de ltro, puede seleccionar la siguiente
etapa de ltro que quiere restablecer. El sistema volverá a un funcionamiento normal 10
segundos después de que termine de presionar los botones “Select” o “Reset”.
La pantalla muestra el estado del sistema y le permite restablecer los monitores
de vida útil del ltro cuando se reemplazan los cartuchos de los ltros.
Cuando el
sistema produce
agua tratada de
manera activa, el
ícono “Filtering”
(Filtrando)
parpadeará en
color verde.
Problema de suministro de
agua
El sistema de OI monitorea
el suministro de agua para
garantizar que sea el correcto
para el sistema, a n de
prevenir los posibles daños a
la bomba. Si el suministro de
agua es el correcto, el ícono
de “Low pressure” (Presión
baja) estará de color verde.
Si el suministro de agua
está cerrado o la presión del
suministro baja demasiado,
el ícono de “Low Pressue”
se pondrá rojo y sonará
una alarma siete veces, se
detendrá dos segundos y se
repetirá. El control apagará
la bomba cuando no haya
suciente presión de agua. La
alarma se detendrá cuando la
presión de agua haya vuelto a
la normalidad.
Si hay una falla del sistema,
el ícono “Alarm” (Alarma)
se encenderá de color rojo.
Se activará una alarma si el
sistema detecta una fuga o si el
suministro de agua está cerrado
o no uye de manera normal.
Fuga en el sistema
Si el monitor de fugas detecta
una ltración de agua, el ícono
“Alarm” se encenderá y la
alarma repetirá un tono de 2
segundos. El sistema apagará
la bomba automáticamente y
se detendrá hasta que se haya
apagado la alarma. Desconecte
el sistema, encuentre la fuga y
repárela. Después de arreglar
la fuga, seque el sensor y
vuelva a encender el sistema.
El sistema realizará un breve
lavado de arranque y volverá al
funcionamiento normal.
El sistema monitorea la vida útil de los cinco ltros y le informa
cuándo es necesario cambiarlos. La pantalla muestra la vida útil
restante de cada una de las etapas del ltro. A medida que se
acaba la vida útil de un ltro, la cantidad de barras en el monitor
se reduce. Cuando la pantalla de monitoreo se reduce a una
barra naranja, es necesario reemplazar ese ltro. Si la pantalla de
monitoreo muestra una barra roja, ese ltro excedió el plazo para
reemplazarlo y su ecacia disminuirá.
Cuando un cartucho de ltro
está listo para su reemplazo,
se enciende el ícono “Change
lter” (Cambiar ltro). Si un
cartucho de ltro excede el plazo
para reemplazarlo, el sistema
hace sonar ocho pitidos cortos
cada vez que lo usa.
INFORMACIÓN GENERAL SOBRE EL SENSOR DIGITAL
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