A.O. Smith Z6 User manual

Size: A5 [148.5 mm (W) x 210 mm (H)]
Part No.: 333771-000_R0
Date: 21-12-2015
WITH MINERALISED &
PURIFIED HOT WATER
SUPERIOR TECHNOLOGY FOR ADVANCED PROTECTION.
TM
USER GUIDE
www.aosmithindia.com
EXPERT COMPANY SERVICE
Toll Free No.: 1800-103-2468 or
SMS us: [phone] or
Email us: [email protected]
Monday to Friday: 9 am to 8 pm.
Saturday & Sunday: 9 am to 6 pm.
#For calls registered at A. O. Smith call centre before 4 pm only.
For more details please call our Toll Free No. 1800-103-2468
or log on to www.aosmithindia.com.
Water Purifier
&

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 Toll Free Customer Care No. 1800-103-2468.
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
Key Features of your A. O. Smith & RO water purifier .................................... 01
Pre-instruction literature .......................................................................................... 02
General instructions ................................................................................................. 03
Introduction ............................................................................................................. 04
Product overview ..................................................................................................... 06
Function of indicators .............................................................................................. 08
Water flow ............................................................................................................... 11
Electrical diagram..................................................................................................... 12
Safety precautions.................................................................................................... 13
How to use............................................................................................................... 16
Draining drip tray..................................................................................................... 22
How to maintain your product................................................................................. 24
Troubleshooting....................................................................................................... 25
Technical specifications ............................................................................................ 28
FAQs......................................................................................................................... 30
Warranty terms and conditions................................................................................ 33
Warranty card .......................................................................................................... 37
Service and maintenance ......................................................................................... 38
Disclaimer ................................................................................................................ 39
What’s in the box?
User Guide Mounting Accessories Tube & ConnectorsWater Purifier

01
HOT WATER AT A PRESS OF BUTTON
Only RO in India that gives you purified hot water with added minerals at two
temperature choices.
INDIA'S FIRST RO WITH NIGHT ASSIST
Glow effect guides you to your water purifier at night and makes your kitchen look
good.
ADVANCE UNIQUE 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.
CONVENIENCE
Pure water storage capacity of 10 litres. Provision for both wall mounting & table top.
DIGITAL
Digital display for simple and intelligent display of information.
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.
TWIN ADVANCE ALERT TECHNOLOGY
For Sediment + Pre Carbon filter and RO membrane + other filters change.
ONE TOUCH DISPENSING
To dispense water instantly at the press of a button. (Only on A. O. Smith )
WQA CERTIFIED RO MEMBRANE
RO Membrane element in A. O. Smith & RO water purifier is tested and
certified by WQA against NSF/ANSI 58 standards for material requirements.
PURITY THROUGH 7 STAGE PURIFICATION
7S TECHNOLOGY: Pre-filter + Sediment filter + Pre Carbon filter + RO Membrane +
MIN-TECH (Mineraliser Technology) + Silver Activated Post Carbon + SCMT (Silver
Charged Membrane Technology). In A. O. Smith & RO water purifier 100% of
the water passes through the RO membrane and Double Purified by SCMT.
Key Features of your A. O. Smith & RO water purifier

02
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
Pre-instruction Literature
This manual is a guide to good practice for operating and periodic maintenance of the
A. O. Smith / RO 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.

Safety
General Instructions
These instructions have been written as a guide for the proper installation and operation
of your A. O. Smith / RO 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 / RO 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 / RO 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 / RO water purifier manual.
IMPORTANT
03
Note: This manual refers to the two models RO water purifier and RO water purifier.
Based on the product purchased, customer need to refer the respective illustrations.
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
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 / RO 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

A. O. Smith / RO 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.
Why water purification is important?
Introduction
How does A. O. Smith / RO water purifier work?
04
 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
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 polisher and
enhances the taste of water.
Stage 7 – SCMT filter (Silver Charged Membrane Technology)
In the final stage water is passed through SCMT filter which ensures double
purification of water making it Pure & Sure for drinking.
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 / RO water purifier removes excessive TDS (Total Dissolved Solids) in
water by more than 90%. A. O. Smith / RO 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 / RO water purifier uses one of the latest technologies that is used in
water purification process. A. O. Smith / RO 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.

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
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 polisher and
enhances the taste of water.
Stage 7 – SCMT filter (Silver Charged Membrane Technology)
In the final stage water is passed through SCMT filter which ensures double
purification of water making it Pure & Sure for drinking.
Figure 1
Ball valve
Pre-filter
Note: The Pre-filter and the Ball valve comes along with the product as standard accessories.

Product Overview
Figure 2
06
A. O. Smith RO water purifier
LED Display Panel Indicators
Front View
Back View
Water Level Indicator
Top Cover
LED Display Panel Indicators
Water Level Indicator
Child Lock Button
Hot Water Faucet
Main Body
Hot Water Tank
Drip Tray Cover
Normal Water Faucet
Faucet Lever
Front Cover
Removable Drip Tray
Rear Cover
Overflow water
Reject water
Feed water inlet
O I R

07
Front View
Back View
Figure 3
A. O. Smith RO water purifier
LED Display Panel Indicators
Water Level Indicator
Top Cover
LED Display Panel Indicators
Water Level Indicator
Hot Water Outlet
Main Body
Hot Water Tank
Drip Tray Cover
Normal Water Outlet
Front Cover
Removable Drip Tray
Rear Cover
Overflow water
Reject water
Feed water inlet
O I R

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
Function of indicators
08
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 the 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

This indicates the temperature of water inside the hot water tank and displays the Error
codes incase of fault in the water purifier.
Note: Call A. O. Smith Customer care centre if you notice any Error messages (Refer page 27).
Temperature indicator
09
This indicates that the MIN-TECH, Silver Activated Post Carbon, SCMT filter and/or
ROmembrane needs to be replaced.
• RO change indicator glows when 10% life is remaining, indicating that it is time to
replace MIN-TECH, Silver Activated Post Carbon, SCMT filter and/or RO membrane.
• When MIN-TECH, Silver Activated Post Carbon, SCMT filter and/or RO membrane life
reaches its end, this indicator will start to blink continuously. The unit will not
function until MIN-TECH, Silver Activated Post Carbon, SCMT filter and/or RO
membrane 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
MIN-TECH, Silver Activated Post Carbon, SCMT filter and/or RO membrane are/is
replaced.
RO change indicator
Note: Call A. O. Smith Customer care centre to replace the MIN-TECH, Silver Activated Post
Carbon, SCMT filter and/or RO membrane.
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.

10
This purifier is capable of dispensing warm water (45°C) and hot water (80°C) as per
customer desire. This button is used to heat the water inside the hot water tank of the
purifier.
Water Heating Button
As a safety feature while dispensing hot water, the purifier has a built-in Child lock
feature. This button prevents accidental dispense of hot water.
Child Lock Button (for A. O. Smith only)
As a safety feature, to prevent hot water from being dispensed accidentally and possibly
harming a child, the hot water button can only be operated when the child lock is
disabled. To learn more about this feature refer page 20.
Child Lock (CL) (for A. O. Smith only)
This button is used to dispense hot water from the purifier.
Hot Water Button (for A. O. Smith only)
This button is used to dispense normal water from the purifier.
Normal Water Button (for A. O. Smith only)

Figure 4
Water flow
11
Figure 5
Dispensing
Solenoid
valve
Dispensing
Solenoid
valve
Normal
water outlet
Hot
Tank
Hot water
outlet
Check
valve
Overflow
water Level 1
Sensor
Level 2
Sensor
Storage
Tank
Low Pressure
Switch
Flow
Restrictor
Tap
water Ball
Valve
Inlet water
3-way joint
Flush
Solenoid
valve
Inlet
Solenoid valve
Waste
water
MIN-TECHSilver
Activated
Post Carbon
SCMT
Pump
Pure
water
RO
Sediment
filter Pre CarbonPre-filter
Check
Valve
FaucetFaucet
Hot
Tank
Check
valve
Overflow
water Level 1
Sensor
Level 2
Sensor
Storage
Tank
Low Pressure
Switch
Flow
Restrictor
Tap
water Ball
Valve
Inlet water
3-way joint
Flush
Solenoid
valve
Inlet Solenoid
valve
Waste
water
MIN-TECHSilver
Activated
Post Carbon
SCMT
Pump
Pure
water
RO
Sediment
filter Pre CarbonPre-filter
Check
Valve

Figure 6
Figure 5
Electrical diagram
12
Figure 7
Reset
PCB
LED1
LED2
Night
Assist
LED
Water
Leakage PCB
Flush
SV
Inlet
SV
Pump
SMPS
P
N
G
150V - 300V
50 Hz
1- φ
AC supply
Terminal
Block
Hot Water Tank
ECO
Temperature
Sensor
Lower
Level
Sensor
Low
Pressure
Switch
Upper
Level
Sensor
Main Control Board
24V
DC
GND
Normal
water SV
Hot water SV
Reset
PCB
LED1
LED2
Night
Assist
LED
Water
Leakage PCB
Flush
SV
Inlet
SV
Pump
SMPS
P
N
G
150V - 300V
50 Hz
1- φ
AC supply
Terminal
Block
Hot Water Tank
ECO
Temperature
Sensor
Lower
Level
Sensor
Low
Pressure
Switch
Upper
Level
Sensor
Main Control Board
24V
DC
GND

Safety Precautions
Electrical safety
Figure 8
Power plug must be used with a
grounded 230V outlet. (Figure 8)
230V CAUTION
Figure 9
Do not pull out or touch power plug with
wet hands to avoid electrical shock.
(Figure 10)
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 9)
Figure 10
DANGER
13
Figure 11
Install the product away from direct
sunlight. (Figure 11)

14
Product should be installed only by
A. O. Smith Company authorised service
technician. (Figure 12)
Figure 12
CAUTION
Heater
CAUTION
Figure 13
Do not connect hot water to the product.
(Figure 13)
Figure 14
Connect the product to the power supply
only with the plug that is provided with
the purifier. (Figure 14)
Figure 16
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 16)
CAUTION
Figure 15
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 15)
CAUTION

CAUTION
Figure 19
Do not drink the water from the reject water tube. Reject water should not be consumed
in any form. (Figure 19)
When it is used
Figure 17 Figure 18
Do not put heavy objects on the product.
(Figure 17)
Do not put foreign objects or hand inside
the purifier. (Caution is needed, especially
for children). (Figure 18)
15
Waste
water
Reject water
tube
Note: It is recommended not to switch off the water purifier and/or turn off the water supply to
the product when it is 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.

ON
16
How to use
Figure 20 Figure 21
1. Turn ON the water connection
through the ball valve. (Figure 20)
1. Turn ON the water connection
through the ball valve. (Figure 21)
Figure 22
2. Switch ON the power supply and press
the power button of the purifier.
(Figure 22)
Figure 23
2. Switch ON the power supply and press
the power button of the purifier.
(Figure 23)
A. O. Smith A. O. Smith
ON