A.O. Smith X6 User manual

Size: A5 [148.5 mm (W) x 210 mm (H)]
Part No.: 333772-000_R0
Date: 21-12-2015
USER GUIDE
Water Purifier
EXPERT SERVICE
Monday to Friday: 9 a.m. to 8 p.m.
Saturday & Sunday: 9 a.m. to 6 p.m.
#For calls registered at A. O. Smith Call Centre before 4 p.m. only.
Available only in selected cities. For more details, please call our
1800-103-2468/
1860-500-2468 or log on to www.aosmithindia.com
1800-103-2468/ 1860-500-2468
[phone] (Send SMS) or
[email protected]

Dear Customer,
Congratulations and welcome to A. O. Smith family.
We thank you for the trust you have shown in choosing the A. O. Smith Water Purifier.
A. O. Smith Water Purifier is one of the most advanced RO Water Purifier available in the
market today. It is specially designed keeping in mind today’s water quality and your
needs.
Millions of customers all over the world trust A. O. Smith Products for their quality
and workmanship.
Our customer-centric approach manifests itself in many other ways too. If you need any
information or assistance with your Water Purifier, just call us from any phone,
anywhere in the country to our Customer Care No. 1800-103-2468/1860-500-2468.
Please go through this simple and easy to read instruction and installation manual to
get the best out of your A. O. Smith RO Water Purifier.
We once again thank you for choosing A. O. Smith.
Yours Sincerely,
Team A. O. Smith

Contents
What’s in the box?
User Guide Mounting Accessories Tube & ConnectorsWater Purifier
Key Features of your A. O. Smith Water Purifier ................................... 01
Pre-instruction literature .......................................................................................... 03
General instructions ................................................................................................. 04
Introduction ............................................................................................................. 05
Product overview ..................................................................................................... 07
Function of indicators .............................................................................................. 09
Water flow ............................................................................................................... 11
Electrical diagram..................................................................................................... 13
Safety precautions.................................................................................................... 15
How to use............................................................................................................... 18
Draining drip tray..................................................................................................... 20
How to maintain your product................................................................................. 21
Replacing changeable panel..................................................................................... 22
Troubleshooting....................................................................................................... 23
Technical specifications ............................................................................................ 25
FAQs......................................................................................................................... 28
Warranty terms and conditions................................................................................ 30
Warranty card .......................................................................................................... 34
Service and maintenance ......................................................................................... 35
Disclaimer ................................................................................................................ 36

01
ADVANCE PATENTED SSM TECHNOLOGY (SIDE STREAM RO MEMBRANE)
Suitable for water with low and high (upto 2000 ppm) TDS. Wastes less water and
improves pure water recovery.
MIN-TECH (MINERALISER TECHNOLOGY)
The MIN-TECH (Mineraliser Technology) adds essential minerals to the water. This
ensures that the water tastes fresh and natural and has balanced pH – an essential
requirement for drinking water.
TWIN ADVANCE ALERT TECHNOLOGY
For Sediment + Pre Carbon filter and RO membrane + other filter change.
ADVANCED PRE-FILTER & SEDIMENT FILTER
For effective removal of suspended solids and sediment from water and to ensure
better life of RO membrane.
Key Features of your A. O. Smith Water Purifier
RO + SCMT (SILVER CHARGED MEMBRANE TECHNOLOGY)
SCMT is an additional stage of purification to prevent any potential secondary
microbial contamination post RO purification. Double protection ensures purified
and healthy water. (for model only)
PURITY THROUGH 7 STAGE PURIFICATION
7S TECHNOLOGY: Pre-filter + Sediment filter + Pre Carbon filter + Patented Side
Stream RO Membrane + MIN-TECH (Mineraliser Technology) + Silver Activated Post
Carbon + UV (for model only ) / SCMT (Silver Charged Membrane Technology)
(for model only). In A. O. Smith RO Water Purifiers, 100% of the water
passes through the RO membrane.
ONE TOUCH DISPENSING
To dispense water instantly at the press of a button. (for model only)
RO + UV
A promise of pure and safe water is delivered by our Patented SSM RO + UV- dual
technology. It gives the benefit of double purification to you and your family by
removing harmful chemicals, pesticides, heavy metals and disease causing
microorganisms. (for model only)
UV
RO

02
CONVENIENCE
Provision for both wall mounting & table top.
DIGITAL
Digital display for simple and intelligent display of information.
LARGE STORAGE CAPACITY
Purified water storage capacity of 9 litres.
AESTHETICS
ColourMatch System®to suit your kitchen décor. (for model only)
WQA CERTIFIED RO MEMBRANE
RO membrane element in A. O. Smith Water Purifiers is tested and
certified by WQA against NSF/ANSI 58 standards for material requirements.

03
On Receipt
It is our policy to promote safe delivery of all orders. This product shipment has been
thoroughly checked, packed and quality certified before leaving our plant.
Visible Loss or Damage
If any of the goods called for on the bill of lading or express receipt are damaged or the
quantity is short, do not accept them until the freight or express delivery agent makes an
appropriate notation on your freight bill or receipt.
Concealed Loss or Damage
When a shipment has been delivered to you in apparent good condition, but upon
opening the crate or container, loss or damage has taken place while in transit, inform
the carrier’s agent/A. O. Smith representative immediately.
About this Manual
This manual is a guide to good practice for operating and periodic maintenance of the
A. O. Smith Water Purifier.
This does not contain the full servicing procedures necessary for continued successful
operation of this product. The services of A. O. Smith Company Authorised Service
Technician must be employed periodically on the same.
Do not operate before reading manual supplied with this product.
Please follow instructions in this manual to ensure personal safety and proper operation
of this product. A. O. Smith assumes no liability for installation or servicing performed by
any unauthorised personnel. Always install, operate, inspect and maintain this product in
accordance with all applicable standards. Please store this user manual carefully for any
future reference.
Pre-instruction Literature

04
Safety
Your safety and the safety of your loved ones is paramount to us. There are several
safety-related messages in this manual, which have been provided during various stages
such as installation, operation and maintenance of your A. O. Smith Water
Purifier. These messages point out potential hazards and also educate on how to reduce
any potential risks. Please always read and follow all safety messages as provided in this
manual.
General Instructions
These instructions have been written as a guide for the proper installation and operation
of your A. O. Smith Water Purifier. A. O. Smith will not accept any liability
where these instructions have not been followed. However, for your safety and to avoid
damage caused by improper installation, it is recommended that Water Purifier must be
installed by A. O. Smith Company Authorised Service Technician only.
Before proceeding with the installation instructions:
1. Inspect the A. O. Smith Water Purifier and its component parts for
possible damage. DO NOT install or attempt to repair any damaged component parts.
If you detect any damage in your A. O. Smith Water Purifier, please
contact the company through Customer Care Centre, details of which are mentioned
in this manual and on the product.
2. Verify that the voltage being supplied corresponds to that which is mentioned in the
A. O. Smith Water Purifier manual.
IMPORTANT
This is the safety alert symbol. This symbol alerts you to potential
hazards that can hurt you and others. All safety messages will follow the
safety alert symbol and either the word “DANGER” or “WARNING”.
Indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury or property damage.
DANGER
CAUTION
WARNING
Note: This manual refers to the three models Water Purifier, Water Purifier and
Water Purifier. Based on the product purchased, customer needs to refer the respective
illustrations.

05
 Stage 3 – Pre Carbon filter
The Pre Carbon filter uses carbon block with high adsorbtion capacity which reduces
harmful chemicals including pesticides, volatile organic compounds, residual chlorine
etc., from water. It also adsorbs bad taste and odour causing organic compounds
from water.
Stage 4 – RO (Reverse Osmosis) membrane
RO membrane contains semi-permeable membrane wherein the water is passed
through the semi-permeable membrane to remove TDS (Total Dissolved Solids) and
heavy metals like mercury, arsenic, lead, chromium, cadmium etc. It also removes
disease causing microorganisms like bacteria, virus, protozoa and cysts.
Stage 5 – MIN-TECH (Mineraliser Technology)
The MIN-TECH contains Calcium and Magnesium minerals which helps to improve
the taste and quality of water. It adds the required essential minerals back to water
and balances the pH of water.
Stage 6 – Silver Activated Post Carbon
Water is passed through Silver Activated Post Carbon which acts as a polisher and
enhances the taste of water.
Stage 7 – UV lamp (for model only)
In the final stage, water is passed through UV housing wherein UV rays disinfect the
water by eliminating waterborne disease causing microorganisms like bacteria and
virus which ensures double purification of water making it pure & sure for drinking.
Stage 7 – SCMT (Silver Charged Membrane Technology) filter (for model only)
In the final stage, water is passed through SCMT filter which ensures double
purification of water making it pure & sure for drinking.
A. O. Smith Water Purifier uses one of the latest technologies that is used in
water purification process. A. O. Smith Water Purifier works under the
principle of RO (Reverse Osmosis) technology which is found to be one of the most
effective process. In this process, water under pressure is passed through a
semi-permeable membrane. Purified water is collected for drinking in a storage tank and
impurities in the water are flushed to the drain. A. O. Smith Water Purifier has
RO+UV technology wherein water is passed through a RO membrane to remove
impurities in water and then passed through UV housing wherein UV rays disinfect the
water by eliminating waterborne disease causing microorganisms like bacteria and virus.
Introduction
Why water purification is important?
Water purification, today is essential due to the presence of harmful contaminants
present in the water supply. Rapid urbanisation and speedy industrial growth have led to
significant pollutants and contaminants being found in the water supply. Below is a list
of some of the harmful contaminants found today in the water supply which if
consumed in excess can be detrimental to human health.
• TDS (Total Dissolved Solids) like Nitrates, Chlorides, Sulphates etc.
• Pesticides and VOC (Volatile Organic Compounds).
• Heavy metals like Mercury, Arsenic, Lead, Chromium, Cadmium etc., imbalanced pH.
• Microorganisms such as pathogenic bacteria, virus, protozoa and cysts.
A. O. Smith Water Purifier removes excessive TDS (Total Dissolved Solids) in
water by more than 95%. A. O. Smith Water Purifier reduces heavy metals,
removes pathogens and balances the pH value. By this, it ensures you safe and great
tasting water.
A. O. Smith Water Purifier has 7 stages of purification system, wherein the
water is passed through the various stages and progressively filtered to get purified
water which is stored in the inbuilt storage tank.
 Stage 1 – Pre-filter
The Pre-filter is used to remove physical contaminants such as dirt, dust, soil
particles, turbidity present in the water. This improves the life of the Sediment filter.
 Stage 2 – Sediment filter
The Sediment filter is used to remove fine and coarse physical contaminants present
in the water. This improves life of the Pre Carbon filter and ensures efficient working
of RO membrane.
How does the A. O. Smith Water Purifier work?

06
 Stage 3 – Pre Carbon filter
The Pre Carbon filter uses carbon block with high adsorbtion capacity which reduces
harmful chemicals including pesticides, volatile organic compounds, residual chlorine
etc., from water. It also adsorbs bad taste and odour causing organic compounds
from water.
Stage 4 – RO (Reverse Osmosis) membrane
RO membrane contains semi-permeable membrane wherein the water is passed
through the semi-permeable membrane to remove TDS (Total Dissolved Solids) and
heavy metals like mercury, arsenic, lead, chromium, cadmium etc. It also removes
disease causing microorganisms like bacteria, virus, protozoa and cysts.
Stage 5 – MIN-TECH (Mineraliser Technology)
The MIN-TECH contains Calcium and Magnesium minerals which helps to improve
the taste and quality of water. It adds the required essential minerals back to water
and balances the pH of water.
Stage 6 – Silver Activated Post Carbon
Water is passed through Silver Activated Post Carbon which acts as a polisher and
enhances the taste of water.
Stage 7 – UV lamp (for model only)
In the final stage, water is passed through UV housing wherein UV rays disinfect the
water by eliminating waterborne disease causing microorganisms like bacteria and
virus which ensures double purification of water making it pure & sure for drinking.
Stage 7 – SCMT (Silver Charged Membrane Technology) filter (for model only)
In the final stage, water is passed through SCMT filter which ensures double
purification of water making it pure & sure for drinking.
Figure 1
Note: The Pre-filter and the Ball valve comes along with the product as standard accessories.
Pre-filter
Ball valve

A. O. Smith Water Purifier
07
Product Overview
Figure 2
Removable Drip Tray
LED Display Panel Indicators
Water Dispensing Nozzle
Top Cover
Main Body
Water Level Indicator
Faucet Knob
Changeable Panel
Drip Tray Cover
Front View
LED Display
Panel Indicators
Overflow water
Feed water inlet
Reject water
O I R
Rear Cover
Back View

08
A. O. Smith Water Purifier
Figure 3
Front View
Removable Drip Tray
LED Display Panel Indicators
Water Dispense Nozzle
Top Cover
Main Body
Water Level Indicator
Water Dispense Button
Changeable Panel
Drip Tray Cover
Back View
Rear Cover
Overflow water
Reject water
Feed water inlet
O I R
LED Display
Panel Indicators

09
This indicates flushing is in progress. Every time the water purification process is
activated, the auto flushing mechanism cleans the RO membrane. It enhances the life of
RO membrane.
Note: Call A. O. Smith Customer Care Centre if you notice continuous blinking of Auto-flush indicator.
Auto-flush indicator
Tank full indicator
This indicates that the Water Purifier tank is full.
• When there is an overflow, the indicator starts to blink with continuous beep till it is
fixed.
Note: Call A. O. Smith Customer Care Centre if you notice continuous blinking of Tank full indicator.
This button is used to switch ON/OFF the Water Purifier.
• When there is a leak in the Water Purifier, the power button starts to blink with
continuous beep till it is fixed.
• When the water pressure is lower than required water pressure limits, the power
button starts to blink continuously with beep sound for 10 seconds till the water
pressure becomes normal.
Note: Call A. O. Smith Customer Care Centre if you notice continuous blinking of Power light.
Power Button
Function of Indicators

10
This indicates that the RO membrane and/or the post RO filters need to be replaced.
• RO change indicator glows when 10% life is remaining, indicating that it is time to
replace RO membrane and/or the post RO filters.
• When RO membrane and/or the post RO filters life reaches its end, this indicator will
start to blink continuously. The unit will not function until RO membrane and/or the
post RO filters are/is replaced.
• RO change indicator keeps blinking continuously with the buzzer beeping for 10
times every time the system is switched ON. The unit will not function until RO
membrane and/or the post RO filters are/is replaced.
RO change indicator
Note: Call A. O. Smith Customer Care Centre to replace the RO membrane and/or the post RO filters.
Note: Call A. O. Smith Customer Care Centre to replace the Sediment filter and/or Pre Carbon filter.
SCPA change indicator
This indicates that the Sediment filter and/or Pre Carbon filter needs to be replaced.
• SCPA change indicator glows when 10% life is remaining, indicating that it is time to
replace Sediment filter and/or Pre Carbon filter.
• When Sediment filter and/or Pre Carbon filter life reaches its end, this indicator will
start to blink continuously and the unit will not function until Sediment filter and/or
Pre Carbon filter are/is replaced.
• SCPA change indicator keeps blinking continuously with the buzzer beeping for 10
times every time the system is switched ON. The unit will not function until Sediment
filter and/or Pre Carbon filter are/is replaced.
This button is used to dispense water from the Water Purifier.
The purifier has a built-in electronic auto shut-off feature where it turns off
automatically after 3.5 minutes of dispensing water.
Water dispense button (for model only)

Water flow
Figure 4
Figure 5
Faucet
Overflow
water Level 1
Sensor
Level 2
Sensor
Storage
Tank
MIN-TECH
Silver
Activated
Post Carbon
UV
Lamp
Pump RO
Sediment
filter Pre Carbon
Tap
water
Pre-filter
Ball
Valve
Inlet water
3-way joint
Check
Valve
Low
Pressure
Switch
Inlet
Solenoid
valve
Flow
Restrictor
Flush
Solenoid
valve
Waste
water
Pure
water
Faucet
Overflow
water Level 1
Sensor
Level 2
Sensor
Storage
Tank
MIN-TECH
Silver
Activated
Post Carbon
SCMT
Pump RO
Sediment
filter Pre Carbon
Tap
water
Pre-filter
Ball
Valve
Inlet water
3-way joint
Check
Valve
Low
Pressure
Switch
Inlet
Solenoid
valve
Flow
Restrictor
Flush
Solenoid
valve
Waste
water
Pure
water
11

12
Figure 6
Low
Pressure
Switch
Pump
Tap
water Pre-filter Pre Carbon
RO
Sediment
filter
Ball
valve
Inlet water
3-way joint
Inlet
Solenoid
valve
Flow
Restrictor
Flush
Solenoid
valve
Waste
water
Pure
water
Silver
Activated
Post Carbon
MIN-TECH
Check
valve
SCMT
Dispensing
Solenoid
valve
Overflow
water Level 1
sensor
Storage
Tank
Level 2
sensor
Water
outlet

Figure 7
Low Pressure
Switch
Pump
Flush SV
UV
Ballast
UV
Lamp
Inlet SV
Water
Leakage
PCB
Lower
Level
Sensor
Upper
Level
Sensor Reset
PCB
Driver Board
SMPS
150V - 300V
50 Hz
1- φAC supply
P
N24V DC
GND
Figure 8
Low Pressure
Switch
Pump
Flush
SV
Inlet SV
Water
Leakage
PCB
Lower
Level
Sensor
Upper
Level
Sensor Reset
PCB
Driver Board
SMPS
150V - 300V
50 Hz
1- φAC supply
P
N24V DC
GND
Electrical diagram
13

14
Figure 9
Faucet
SV
Low Pressure
Switch
Pump
Flush SV
Inlet SV
Water
Leakage
PCB
Lower
Level
Sensor
Upper
Level
Sensor Electronic
Faucet
PCB
Reset
PCB
Driver Board
SMPS
150V - 300V
50 Hz
1- φAC supply
P
N24V DC
GND

15
Safety Precautions
Electrical safety
Figure 10
Power plug must be used with a
grounded 230V outlet. It is recommended
to connect the product to the power
supply only with the plug that is provided
with the purifier.(Figure 10)
Figure 11
Do not pull out or touch power plug
with wet hands to avoid electrical
shock. (Figure 12)
Even though these products are designed keeping highest safety standards in mind,
there are certain Do’s and Dont’s which need to be followed while using these products.
Do not move the product when product is
running. (Figure 11)
Figure 12
DANGER
Figure 13
Install the product away from direct
sunlight. (Figure 13)
230V
CAUTION
Figure 14
Make sure that the feed water is tested
before installation. Do not install the
product if the TDS and Hardness are more
than that prescribed in the recommended
feed water conditions (Refer page 26).
(Figure 14)
TDS
METER

16
Figure 17
Product should be installed only by
A. O. Smith Company Authorised Service
Technician. Do not open the purifier for
cleaning the filters or for any part
replacements. This must be done only by
A. O. Smith Company Authorised Service
Technician. (Figure 17) CAUTION
Figure 15
Do not connect hot water to the product.
(Figure 15)
Heater
CAUTION
Figure 16
Do not use the purifier if the power cord is
damaged or you notice strange noise,
burning smell or smoke. Switch off the
power, unplug the power cord immediately
and call Customer Care Centre. (Figure 16)
CAUTION

17
CAUTION
Waste
water
Reject water
tube
Figure 20
Do not drink the water from the reject water tube. Reject water should not be consumed
in any form. (Figure 20)
When it is used
Figure 18 Figure 19
Do not put heavy objects on the product.
(Figure 18)
Do not put foreign objects or hand inside
the purifier. (Caution is needed, especially
for children). (Figure 19)
Note: It is recommended not to switch off the Water Purifier and/or turn off the water supply to
the product when it has not been used for more than 24 hrs. The purifier has an inbuilt
cleaning mechanism which cleans the RO membrane every 24 hrs by flushing it. This
feature protects the RO membrane and ensures longer life.