A.O. Smith AO-MF User manual

Owner’s Manual
El manual del proprietario
MAIN FAUCET FILTER
WITH CHLORINE, LEAD AND CYST REDUCTION
Under Sink
AO-MF
BAJO EL FREGADERO |FILTRO PARA LLAVE PRINCIPAL
con reducción de cloro, plomo y quistes

NEED HELP? GIVE US A CALL 877.333.7108
A. O. Smith has obsessively engineered this ltration system for you. It features
ltration that reduces harmful contaminants – those you can see, smell and taste,
and those you can’t – with no chemical additives or wasted water. Whatever your
water need – 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
877.333.7108.
The recommended replacement
frequency for the AO-MF is every 6
months or every 1,389 gallons of use.
Use only certied, genuine A. O. Smith replacement lters
for continued contaminant removal and system performance.
Visit AOSmithAtLowes.com to nd replacements
or visit your local Lowe’s store.

NEED HELP? GIVE US A CALL 877.333.7108
TABLE OF CONTENTS
Box Contents ............................................................................................................1
Installation Guide................................................................................................. 2-3
Care and Maintenance.............................................................................................4
Performance Data Sheet..........................................................................................4
Warranty...................................................................................................................5
Spanish/Español.................................................................................................. 6-12
MAIN FAUCET FILTER
WITH CHLORINE, LEAD AND CYST REDUCTION
Under Sink

NEED HELP? GIVE US A CALL 877.333.7108
BOX CONTENTS
1
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 877.333.7108.
Do not attempt to install the lter.
SYSTEM HEAD AND
MOUNTING BRACKET MOUNTING
SCREWS AND
ANCHORS (2)
DUAL PORT
ADAPTER
SYSTEM CARTRIDGE
3/8" TUBING (2)
QUICK CONNECT
ELBOW
• Variable speed drill w/ 7/32" bit
• Adjustable wrench
• Measuring tape
• Level
• Philips head screwdriver
• Pencil
Tools recommended for installation:
Note: We recommend using an approved or certied professional if drilling is required.

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INSTALLATION GUIDE 2
1
2
3 4
Lightly place system head onto cartridge
(do not fully attach) to determine a suitable area
under the sink to mount the system vertically.
After marking placement for
mounting screws, use a 7/32" drill
bit to drill holes. Carefully tap plastic
anchors into the holes with a hammer.
Place the mounting screws into the
anchors and mount the system head
to the wall.
Three (3) inches of clearance from the base of the
cartridge is needed for easy cartridge replacement.
The system head must be installed less than three
(3) feet from the COLD-water inlet valve.
System Head Mounting Options
Fully connect cartridge to system head by
pushing in and turning the cartridge to
the right until it locks into place.
1
1
2
2
Option 1
Measure the distance between
mounting holes on back of system
head. Use this measurement to
determine placement of mounting
holes and mark with a pencil.
Note: make sure mounting holes are level.
Note: Remove system head before
proceeding to step 3.
Option 2
Remove the cover from the system head as
shown below (1). With cover removed, place
system head in desired location. Use a pencil
to mark placement of screws (2). Place cover
back on.
123
3"

5
6
7
8
9
Turn off COLD water supply (1). With an adjustable wrench, disconnect supply
line (2). Attach dual port adapter to shutoff valve and re-attach COLD water
line to the dual port adapter (3).
Connect tubing at all points. Push the tubing in until
it stops. Use 3/8" quick connect elbow if necessary.
Connect 3/8" tubing to the bottom port
of the dual port adapter. Run the opposite
end of the tubing to the left side of the
system head and cut to length.
Using the second piece of 3/8" tubing,
connect one end to the top port of the
dual port adapter and run it to the right
side of the system head and cut to length.
Turn on cold water to the kitchen
faucet (1). With the faucet on, slowly
open the cold water shutoff valve (2).
Leave water running to ush cartridge
for 15 minutes or until water is clear of
carbon nes. Once system is ushed,
turn off kitchen faucet.
1
1
3
2
2
Inlet
Outlet
INSTALLATION GUIDE
3

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To clean your lter unit, wipe down
the exterior with a damp cloth.
Safeguards
• Use only COLD water with lter.
• If you experience a hose connection
leak, disconnect and re-seat the hose.
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.
AO-MF
Replacement cartridge: AO-MF-R
Rated service ow: 1.4 gpm (5.3 lpm)
Max capacity: 1,389 gallons (5,258 l)
Min working pressure: 10 psi (68.95 kPa)
Max working pressure: 125 psi (861.8 kPa)
Min operating temperature: 40º F (4.44º C)
Max operating temperature: 90º F (32.22º C)
Performance Data Sheet for the A. O. Smith Main Faucet Water Filter
Models Replacement Operating pressure range Rated capacity Operating temp. range Rated ow
AO-MF AO-MF-R 10-125 psi
68.95-861.8 kPa
1,389 gallons
5,258 liters
40-90º F
4.44 - 32.22º C
1.4 gpm
5.3 lpm
Manufactured by: A. O. Smith Corporation P.O. Box 1597 | Johnson City, TN 37605-1597 | 877.333.7108
NSF/ANSI 42 Min Reduction Overall % Reduction Results
Chlorine Reduction, Free Available 97.5% 97.5% Pass
Particulate Reduction 87.1% 95.9% Pass
NSF/ANSI 53 Min Reduction Overall % Reduction Results
Cyst Live Cryptosporidium & Giardia >99.99% >99.99% Pass
Lead Reduction pH 6.5 > 99.3% > 99.3% Pass
Lead Reduction pH 8.5 > 99.3% > 99.3% Pass
Atrazine 89.1% 93.7% Pass
Lindane 97.4% 98.8% Pass
Turbidity 97.3% 98.7% Pass
• 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 and 53 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 and 53 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 and 53.
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.
Read owner’s manual for general installation
conditions and needs, as well as manufacturer’s
limited warranty.
CARE & MAINTENANCE 4
System Tested and Certied by IAPMO R&T lab and IAPMO R&T against NSF/ANSI Standards
42 & 53. Please refer to the Performance Data Sheet for specic contaminant reductions.

3
What is covered:
This warranty covers defects in materials
or workmanship in manufacturing of your
A. O. Smith drinking water lter systems,
except as provided below.
For how long:
This warranty runs for 365 days 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, express or implied, whether
written or oral, including but not limited
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 ltration 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
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 1-877-333-7108
or aosmithatlowes.com/contactus 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.
Warranty card:
Warranty registration is not required
for coverage under the A. O. Smith
Limited Warranty. If you purchased from
a retailer or dealer, please complete the
online warranty registration form at
www.AOSmithatLowes.com/register.
Once registered online, we will have a
record of your purchase and you will not
be required to produce a proof of
purchase for a warranty claim.
LIMITED WARRANTY
A. O. Smith Corporation P.O. Box 1597 | Johnson City, TN 37605-1597 | 877.333.7108
1
YEAR
5

A.O.Smith diseñó este sistema de ltración minuciosamente para usted. Cuenta con
ltración que disminuye los contaminantes dañinos, aquellos que puede y no puede
ver, oler y sentir su sabor, sin usar aditivos químicos o aguas residuales. 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.
Si necesita ayuda o tiene alguna consulta, nosotros nos encargamos. Llámenos al
877.333.7108.
La frecuencia de cambio recomendada para el AO-MF es
cada 6 meses o cada 5,258litros (1,389galones) de uso.
Solo use ltros de repuesto originales A.O.Smith
y certicados para eliminación de contaminantes y
rendimiento del sistema constantes.
Visite AOSmithAtLowes.com para encontrar repuestos
o visite su tienda Lowe’s local.