A O Smith AO-MF Direct Connect Water Filter Instruction Manual
- June 13, 2024
- A O Smith
Table of Contents
AO-MF
Owner’s Manual
DIRECT CONNECT
WATER FILTER
AO-MF Direct Connect Water Filter
IF YOU NEED HELP OR HAVE A QUESTION, WE’VE GOT YOU COVERED. GIVE US A CALL AT
877.333.7108
PLEASE DO NOT RETURN TO THE STORE.
Congratulations on your new purchase. This water filter has been engineered to
provide you with optimally clean water. The Direct Connect Water Filter
features filtration technology that reduces harmful contaminants and bad taste
and odor while retaining beneficial minerals. Whatever your water needs — from
hydration to cooking and more — A. O. Smith has you covered.
Keep this owner’s manual to reference installation, troubleshooting and filter
replacement information.
If you need help or have a question, 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 certified, genuine A. O. Smith replacement filters for
continued contaminant removal and system performance.
Visit AOSmithAtLowes.com to find replacements or visit your local Lowe’s
store.
NEED HELP? GIVE US A CALL 877.333.7108
Under Sink
DIRECT CONNECT WATER FILTER
https://qr1.be/HZI2
Scan to view the AO-MF installation video.
BOX CONTENTS
Please read entire manual and 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 filter.
Tools recommended for installation:
- Variable speed drill w/ 7/32″ bit
- Adjustable wrench
- Measuring tape
- Level
- Phillips head screwdriver
- Pencil
INSTALLATION GUIDE
Installation Options
- Vertical
- Horizontal wall mount
- Horizontal floor mount (mount the system to the floor of your cabinet)
STEP 1 Prepare for Installation
Lightly place system head onto filter cartridge (do not
fully attach) and determine a suitable area under the sink to mount the system
vertically.
Three (3) inches of clearance from the base of the filter cartridge is needed
for easy replacement. The system head must be installed less than three (3)
feet from the COLD water inlet valve.
Note: Remove system head before proceeding to step 3.
STEP 2 System Head Mounting Options
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.
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. Note:
Make sure mounting holes are level.
STEP 3 Mount System Head
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.
STEP 4 Insert Filter Cartridge
Fully connect filter cartridge to system head by pushing up and turning the cartridge to the right until it locks into place.
STEP 5 Turn Off and Disconnect Water Line
Turn off COLD water supply (1). With an adjustable wrench, disconnect water
line (2).
Attach dual port adapter to shutoff valve and re-attach COLD water line to the
dual port adapter (3). 
STEP 6 Connect Tubing
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.
Connect tubing at all points. Push the tubing in until it stops. Use 3/8″
quick connect elbow if necessary.
STEP 7 Turn On Cold Water
Turn on COLD water to the kitchen faucet (1). With the faucet on, slowly open
the COLD water shutoff valve (2).
STEP 8 Flush System
Leave water running to flush system for 15 minutes or until water is clear
of carbon fines. While the system is flushing, check for leaks. Once system is
flushed, turn off kitchen faucet.
Note: Do not drink flushed water.
CARE & SAFEGUARDS
Care
To clean your filter unit, wipe down the exterior with a damp cloth.
NOTICE
Safeguards
-
If you experience a hose connection leak, disconnect and re-set the hose.
-
Do not install this system where the line pressure may exceed 125 psi. The operating pressure range for this system is between 10-125 psi.
-
Install on COLD water lines only (40°F – 90°F).
-
Use caution when installing the system head on a cabinet wall that backs up to a dishwasher. Screws may exceed cabinet width.
-
It is recommended that your system be installed inside and out of direct sunlight.
The system must be protected from both direct sunlight and freezing temperatures. -
System and installation shall comply with applicable state and local laws.
-
Do not use with water that is microbiologically unsafe or of unknown water quality without adequate disinfection before or after the system.
-
Systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts.
PERFORMANCE & CERTIFICATIONS
Models| Replacement| Rated capacity| Operating temp.
range| Rated flow
---|---|---|---|---
AO-MF| AO-MF-R| 1,389 gallons
5,258 liters| 40 – 90ºF
4.44 – 32.22ºC| 1.4 gpm
5.3 lpm
Manufactured by: A. O. Smith Corporation 11270 W Park Pl #170, Milwaukee, WI
53224 | 877.333.7108
System certified by IAPMO R&T to NSF/ANSI Standards 42, 53, and 401 for the reduction of the claims specified on the Performance Data Sheet and at www.IAPMO.org.
For the full list of contaminants filtered, scan to view the AO-MF Performance Data Sheet.
LIMITED 1 YEAR WARRANTY
Who is covered:
A. O. Smith and its suppliers, (herein collectively referred to as
“Manufacturer”) warrants to the original owner who purchased and installed the
system (hereinafter “Owner”).
What is covered:
This Warranty covers defects in materials or workmanship during the limited
Warranty period of your of your A. O. Smith Water Filtration System including
sub-components purchased with original system (may or may not include faucet
and fittings), except as provided below. The water filter is warranted only
when it is installed, operated and maintained in accordance with the
instructions accompanying the water filter found on
AOSmithAtLowes.com. A water filter should be
installed in such a manner that, if the system or any connection thereto
should leak, the resulting flow of water will not cause damage to the area in
which it is installed. For detailed instructions read the manual accompanying
the water filter and review drawings in the manual.
For how long:
This Warranty runs for 12 months (365 days) from the date of purchase by a
consumer (hereinafter “Warranty Period”). No Warranty coverage will be
provided if the claimant is unable to provide proof of purchase from an
authorized A. O. Smith reseller. Estimated lifespan of products is for
information only and is based on usage approximations. Water conditions and
use rates may limit the functional lifespan of your filter. This Limited
Warranty does not extend to the full estimated life span of the system.
What A. O. Smith will do:
- If necessary, the Manufacturer will provide a replacement that fulfills the remaining estimated lifespan/capacity of your original purchase and send it to you with installation instructions. If industry standards, product improvements or product obsolescence prohibit Manufacturer from furnishing an identical model replacement water filter under this Warranty, the Owner will be furnished with a new water filter of comparable remaining capacity and functionality; however, the Owner will be charged for the additional value of the item(s) which Manufacturer has incorporated in the replacement water filter. The Warranty period for any replacement will run for the balance of the original 365 days.
- Component Part – If any component part proves to Manufacturer’s satisfaction to be defective in material or workmanship within the Warranty period listed on the data plate label, the Manufacturer will furnish the Owner with a replacement for the defective part(s).
- Return of Defective Water Filter and Component Parts – Manufacturer reserves the right to examine the alleged defect in the water filter or component part(s), and it will be the Owner’s obligation to return the water filter and/or component part(s) to the Manufacturer at the Manufacturer’s request.
a. When returning a water filter, it must include all component parts.
b. When returning component part(s), they must be individually tagged and identified with the water filter’s model number, date of purchase, and date of installation.
What is not covered:
-
This Warranty does not cover filter cartridges and any systems that were not installed in compliance with the instructions or that have been abused or operated incorrectly.
-
This Warranty applies only to products purchased from authorized A. O. Smith resellers.
-
The Limited Warranty stated herein is in lieu of any and all warranties, express or implied (whether written or oral), including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
-
Manufacturer shall not be liable for any incidental, consequential, special, punitive, or contingent damages or expenses, arising, directly or indirectly, from any defect in the water filter or the use of the water filter, including but not limited to water damage.
-
Manufacturer shall not be liable for any water damage arising, directly or indirectly, from any defect in the water filter or component part(s) or from its use.
-
Manufacturer shall not be liable for any damage or product failures caused by any of the following:
• The water filter or any of its component parts have been subject to misuse, alteration, neglect or accident.
• The water filter has not been installed in accordance with the applicable local plumbing and/or building code(s) and/or regulations or in their absence.
• The water filter is not installed, operated and maintained in accordance with the printed Manufacturer’s instructions, including if the water filter has any additional aftermarket equipment introduced into the sealed system not approved by the manufacturer.
• The water filter is exposed to highly corrosive conditions.
• The water filter is not continuously supplied with potable water.
• The water filter is not operated within the factory calibrated temperature limits.
• The water filter is installed in direct sunlight or exposed to freezing temperatures.
• The water filter or any of its component parts fail due to sediment build- up.
• Clogging due to purchaser’s failure to replace the filter cartridges.
• Damage caused by fire, flood or acts of God.
• Damage caused by over-pressurization in the water line. -
Manufacturer shall not be liable for any claims related to excessive noise, smell, or taste of water.
-
This Warranty does not cover damage caused by the use of parts that are not genuine A. O. Smith parts. This includes, but is not limited to replacement filters, faucets, and/or diverter valves.
-
Except when specifically prohibited by the applicable state law, the Owner, and not the Manufacturer, shall be liable for and shall pay for all charges for labor or other expenses incurred in the removal, repair or replacement of the water filter or any component part(s) claimed to be defective or any expense incurred to remedy any defect in the product. Such charges may include, but are not necessarily limited to:
a. All freight, shipping, handling and delivery costs of forwarding a new water filter or replacement part(s) to the owner.
b. All costs necessary or incidental in removing the defective water filter or component part(s) and installing a new water filter or component part(s).
c. Any material required to complete, and/or permits required for, installation of a new water filter or replacement part(s), and
d. All costs necessary or incidental in returning the defective water filter or component part(s) to a location designated by the Manufacturer.
How to get service:
To receive service under this Warranty, you must contact A. O. Smith at
1-877-333-7108 within the Warranty
Period to describe the problem to a customer service representative who will
verify that the product is under Warranty and determine whether a part or the
system will be replaced and whether you must send back the unit. You will be
required to provide proof of purchase from an authorized A. O. Smith reseller
and proof of proper installation.
Warranty registration:
Warranty registration is not required for coverage under the A. O. Smith
Limited Warranty. If you purchased from a retailer or an authorized reseller,
please complete the online Warranty registration form at
www.aosmithatlowes.com/register.
Proof of purchase from an A. O. Smith authorized dealer is required. Once
registered online, we will have a record of your purchase.
How state law applies:
This Warranty gives you specific rights and you may have other rights which
vary from state to state. Some states do not allow the exclusion or limitation
of incidental or consequential damages, so the above limitation or exclusion
may not apply to you.
Love it?
We welcome your rating & review.
Visit AOSmithatLowes.com/reviews
Need help?
Save a trip and give us a call instead at 877.333.7108
Tell us what’s going on. We’ll do our best to help solve the problem and
improve the product.
System certified by IAPMO R&T to NSF/ANSI Standards 42, 53, and 401 for the
reduction of the claims specified on the Performance Data Sheet and at
www.IAPMO.org.
This filter system is designed and tested for use with genuine A. O. Smith
parts, including replacement filters, 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
AOSmithAtLowes.com 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.
A. O. Smith Corporation 11270 W Park Pl #170, Milwaukee, WI 53224
877.333.7108
AO-MF_install_Oct2022
References
- Signature Series® Water Heaters Electric & Gas | A. O. Smith
- Owner and Product Registration Forms | A. O. Smith