A.O. Smith HSE-SAS User manual

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]
User Guide
Water Heater
HSE-SAS/HSE-SDS/HSE-SGS
6, 10, 15 and 25 Litres
Longer warranties.

Congratulations!
And welcome to the A. O. Smith family.
We would like to thank you for the trust you have shown in choosing an A. O. Smith Water Heater. You
can be sure it will live up to your expectations. Thousands of delighted users all over the world trust
A. O. Smith Water Heaters for their families. This user guide will introduce you to your Water Heater.
Follow the instructions carefully and look forward to enjoying long years of trouble-free service.
A. O. Smith is a company known for its innovative technologies and energy-ecient solutions. Ours are
the only Water Heaters with the Blue Diamond®Glass Lining for the inner tank. This cutting-edge
technology prevents sediment and scaling, ghts corrosion and extends the life of your Water Heater.
Our customer-centric approach manifests itself in many other ways too. If you need any information or
assistance with your Water Heater, just call us from any phone, anywhere in the country to our
Customer Care No. 1800-103-2468/1860-500-2468.
Or
Factory Address:
A. O. Smith India Water Products Private Limited
(formerly known as A. O. Smith India Water Heating Private Limited)
Plot 300, Phase - II, KIADB Industrial Area, Harohalli, Kanakapura Taluk,
Ramanagara District, Karnataka – 562 112, India.
CIN: U31909KA2006PTC040282
A. O. Smith India Water Products Private Limited was established in 2006. Since then, the A. O. Smith
team has conducted numerous focus group studies and spent endless research hours determining
what India wanted in a Water Heater. Backed by 75 years of proven technological advances, A. O. Smith
India has created a stylish design with features demanded by the Indian consumer.
The A. O. Smith plant with manufacturing facilities spread over 76,000 sq. ft. is located on 20 acres, just
outside Bengaluru, in the KIADB Industrial Area, Harohalli. The India operations is the 16th A. O. Smith
manufacturing facility worldwide. In 2013, additional 150,000 sq. ft. was added in Bengaluru factory.
A. O. Smith's India plant has extensive engineering and technical resources and has the latest
technologies incorporated. A. O. Smith is the rst manufacturer to invest in and produce glass-lined
Water Heaters in India.
Today, A. O. Smith Corporation is one of the largest Water Heater manufacturers in the world and is a
global leader in innovative technology and energy-ecient solutions.
About A. O. Smith

Read Before Operation ......................................................................................... 1
General ........................................................................................................................ 2
Specications............................................................................................................ 3
Key Features.............................................................................................................. 5
Safety Precautions.................................................................................................. 6
Installation................................................................................................................. 6
Connecting to Water Supply .............................................................................. 9
Operation ................................................................................................................... 11
A. O. Smith ColourMatch System® ................................................................... 15
Troubleshooting...................................................................................................... 17
Circuit Diagram........................................................................................................ 18
Warranty ..................................................................................................................... 19
Jurisdiction ................................................................................................................ 20
Expert Company Service...................................................................................... 20
Service and Maintenance .................................................................................... 22
Wall Mounting
Accessories
User Guide
USER GUIDE
Electric
Water Heater
Contents
What's in the box?

1
On Receipt
It is our policy to promote safe delivery of all orders. This product shipment has been thoroughly
checked, packed and quality certied before leaving our factory.
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
packaging if any 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 HSE-SAS/HSE-SDS/HSE-SGS Water Heater.
Do not operate the Water Heater before reading the user manual.
Please follow instructions in this manual to ensure personal safety and proper operation of this
product. Always install, operate, inspect and maintain this product in accordance with all applicable
standards. Please store this user manual carefully for any future reference.
Read Before Operation

2
General
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.
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”.
DANGER
WARNING
CAUTION
These instructions have been written as a guide for the proper installation and operation of your
Water Heater. 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 Heater must be installed by an Authorised Service Technician.
Before proceeding with the installation instructions:
1. Inspect the Water Heater and its component parts for possible damage. Do Not install or
attempt to repair any damaged component parts. If you detect any damage in the Water
Heater, please contact the dealer where the Water Heater was purchased or call A. O. Smith
Customer Care Centre.
2. Verify that the voltage being supplied corresponds to that which is marked on the Water
Heater manual.
Important
DO NOT use this Water Heater if any part has been under water. Immediately contact an
Authorised Service Technician to inspect the Water Heater and contact A. O. Smith Service
personnel to replace any part of the control system which has been under water. Failure to follow
this instruction can result in property damage, serious injury or death.
WARNING
Safety
Your safety and the safety of your loved ones is paramount. There are several safety-related messages
in this manual, which have been provided during various steps such as the installation, operation and
maintenance of your HSE-SAS/HSE-SDS/HSE-SGS Water Heater. 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 user manual.

3
Specications
Note: Image may vary from the actual product.
Figure 1
A
C
B
E
F
D
Dimensions
Model 6 Ltrs 10 Ltrs 15 Ltrs 25 Ltrs
A [mm] 317 373 373 444
B [mm] 317 373 373 444
C [mm] 100 100 100 100
D [mm] 85 95 125 125
E [mm] 105 120 130 135
F [mm] 258 277 348 383
*The maximum set temperature may vary ± 5 °C.
HSE-SAS HSE-SAS HSE-SAS HSE-SAS
Model HSE-SDS HSE-SDS HSE-SDS HSE-SDS
HSE-SGS HSE-SGS HSE-SGS HSE-SGS
Volume [L] 6 10 15 25
Power [W] HSE-SAS/HSE-SDS 2000
HSE-SGS 3000
Voltage/Frequency [V/Hz] 230~/50
Actual Stdg. Loss [kWh/24h/45°C di.] 0.280 0.340 0.451 0.550
Reheating Time for HSE-SAS/HSE-SDS 6 11 12 22
35°C rise [in min.] HSE-SGS 4 6 7 16
Temperature range [°C] 25-75*
Rated water pressure N/cm2 80
Water head (metres) 80
Inlet/Outlet connections [inch] ½ BSP
Net Weight (kgs) 6.3 8.2 9.8 13

4
Do not tamper or detach the Multi-function Safety Valve from the Water Heater.
WARNING
Part Description
1 Cold water inlet pipe with diuser
2 Hot water outlet pipe
3 Multi-function Safety Valve*
4 Temperature Control Knob
5 Decorative Front Panel
6 Blue Cap
Part Description
7 Red Cap
8 Anode
9 Heating Element
10 Thermal Cut-out
11 Thermostat
12 Wall Mount Slot
6
7
12
11
8
Without Service Cover
10
9
5
2
With Service Cover
4
1
3
Figure 2
*Multi-function Safety Valve has been factory t with the Water Heater and set at 0.8 MPa (8 Bar)
rated pressure.
CAUTION

5
Key Features
Note: A. O. Smith reserves the right to amend or modify the specications and features at any
time, as and when required without any prior notication.
Blue Diamond® Glass Lining
Blue Diamond® technology increases the life of the inner tank. The lining is stronger
and more corrosion resistant than any other in the industry.
Glass Coated Heating Element (for HSE-SDS and HSE-SGS)
Scale and sediment build-up on the surface of the element can lead to premature
failure. A. O. Smith Glass Coating helps to prevent scale formation and extends the
life of the Heating Element.
HSE-SAS has ecient Incoloy Heating Element that does not accumulate calciferous
deposits like copper.
Express Heat (for HSE-SGS)
Save your time with the help of innovative Heating Element by heating your water
33%* faster.
Temperature Control Knob
The temperature control knob allows you to set the temperature anywhere between
25ºC to 75ºC.
Thermal Cutout
If the water temperature exceeds the highest preset level, the thermal cut-out cuts
o the power supply to assure safety.
Multi-function Safety Valve
The Multi-function safety valve is designed to automatically relieve pressure and
discharge water in case the pressure overshoots the preset limits.
Anode Rod
The tank has an anode rod which has stainless steel core that is designed to protect
the tank from corrosive elements. The anode rod uses a special cathodic action to
ght these elements and thus prolong the life of the Water Heater.
* As compared to a regular 2 kW Water Heater

During Installation
Do not install the Water Heater where there is
direct sunlight or rain. It has to be installed
indoor only.
6
Do not install the Water Heater where water
splashes on the Water Heater.
Figure 3 Figure 4
CAUTION
Before installing, ensure that the following tools are available:
Figure 5
Tools Required
Hammer
Bubble Level Indicator Measuring Tape Impact
Drill Tool
Adjustable
Wrench
Teon Tape Ruler
CAUTION
Safety Precautions
Installation

7
Figure 6
Mounting the Water Heater
• It is recommended as per IS302-1 to have
6 inches clearance from wall.
• Select a place to mount Water Heater
vertically with water connection at the
bottom.
• Water heater must be located within
3-1/2 ft. (approx.) from a 230V electrical
outlet with proper grounding.
• Make sure that the wall can withstand at
least twice the weight of the Water Heater
when completely lled with water.
Figure 7
Solid
Concrete
Wall
Solid
Concrete
Wall False
Wall
False
Wall
3-1/2 ft.
Figure 8
• Use a drill bit with diameter of 12 mm to
drill 2 holes at least 90 mm deep in the wall
(Fig. 8 : Step 3). The two holes should be
aligned horizontally. The horizontal
distance between the 2 holes should be
74 mm (Fig. 8 : Step 2).
• Insert the Expansion Anchor into the hole
(Fig. 9 : Step 1).
• Place the Hanging Screw over the
Expansion Anchor and tighten the Hanging
Screw by rotating it till it gets xed steadily
(Fig. 9 : Step 2).
Figure 9
Hole
1
2
Concrete
Wall
Concrete
Wall
Expansion
Anchor
Expansion
Anchor
Concrete
Wall
Concrete
Wall
Hanging
Screw
Hanging
Screw
1
2
3
Hole
90 mm
74 mm
74 mm
Drilling
Tool
Concrete
Wall
Concrete
Wall
Water Heater
6 inch
6 inch
Ceiling Wall

• Place the Water Heater on the Hanging Screw using the Wall Mount Slot (Fig. 10). Tug downwards
on the Water Heater to ensure that the Water Heater is xed steadily.
Figure 10
DANGER
Hot water is dangerous, especially for young children, the aged or the disabled.
The Water Heater allows you to control the temperature of your hot water. Water
temperatures over 52°C can cause severe burns instantly or death from scalds.
Do not leave a child or an inrm person in the bath unsupervised.
HOT
WallWall
Water
Heater
Water
Heater
WallWall
Water
Heater
Water
Heater
2
3
Wall Mount
Slot
Wall Mount
Slot
Concrete
Wall
Concrete
Wall
Water
Heater
Water
Heater
1
8

9
• Make necessary plumbing with reference to the Installation Diagram (Fig. 11).
• A. O. Smith recommends Nylon/Stainless Steel (SS) braided hoses (Flexible Hoses) having a
minimum pressure rating of 8 Bar and hoses should be compatible for hot water applications.
• Connect the cold water pipe to the inlet [Blue Cap].
• Connect the hot water pipe to the outlet [Red Cap].
Hot Water Tap Cold Water Tap
*Flexible Hose*Flexible Hose
Red Cap
Blue Cap
**Multi-function
Safety Valve
Discharge Lever
Discharge Outlet
Figure 11 Installation Diagram
* Flexible Hoses to be procured by the customer, not part of standard product.
** Multi-function Safety Valve comes included with the Water Heater.
Note: The Multi-function Safety Valve may drip during the usage of the heater. As the water is
heated, it expands and tries to ow back through the inlet pipe, but is prevented by the presence
of the non-return valve. Hence water may drip from the Multi-function Safety Valve. Therefore,
Discharge Outlet is provided to discharge water from the Water Heater. To avoid dripping, it is
recommended to install non-return valve at a distance of at least 40 feet away from the inlet of
the Water Heater.
Connecting to Water Supply

• The Multi-function Safety Valve should never be removed or blocked by any means to
prevent it from dripping or releasing the excess pressure inside the heater. Failure to do so
may result in damage to the Water Heater and injuries to the user. This will also make the
warranty null and void.
• Discharge Outlet is provided to release the discharge from the Water Heater in case
excessive pressure is developed. The contents of the discharge from the Multi-function
Safety Valve may be hot and may cause burns to the users and damage nearby objects,
therefore it is recommended to take pre-cautions while discharging water from the Water
Heater.
• It is recommended to operate the Discharge Lever in the Multi-function Safety Valve on a
regular basis to ensure that there are no blockages and also to remove any lime deposits
that would have been formed inside the Water Heater.
• Ensure that the Water Heater is in power OFF condition when the Discharge Lever is being
operated. Ensure that the water is lled completely in the Water Heater before switching it
ON.
• Make sure a suitable Teon Tape is used for all plumbing connections to prevent leakage.
• Use only Nylon/Stainless Steel (SS) braided hoses (Flexible Hoses) having a minimum
pressure rating of 8 Bar and hoses should be compatible for hot water applications.
• Failure to follow this instruction can result in property damage.
CAUTION
10

• This Water Heater should not be operated with insufficient amount of water. Failure to do so
may result in damage to the Water Heater and injuries to the user. This will also make the
warranty null and void.
• Once the Mounting, Multi-function Safety Valve, Plumbing and Water lling is completed,
then only the power supply should be switched ON.
• Do not splash water directly or clean with benzene, pesticides, thinner, alcohol, etc., but use
a soft, dry cloth to clean the Water Heater.
CAUTION
Figure 14
Filling the Water Heater Tank
1. Open a nearby hot water faucet to permit air to escape.
2. Open the cold water inlet valve fully, lling the Water Heater and the piping.
3. Close hot water faucet when water ows.
4. Check all the connections to see if there is any leakage. In case of a leakage, drain the Water
Heater completely, repair the leaking joint and then rell the Water Heater.
Operation
11

12
Figure 15
• Connect the Water Heater using independent sockets, do not use any adapters. Use
multimeter to check whether the live line and neutral line are not reverse, to ensure
complete safety.
• Before installing the Water Heater, conrm that the power of Water Heater matches electric
meter capacity and supply wire.
• The Water Heater should be earthed reliably. It is prohibited to connect the earth wire to
neutral wire or faucet water pipe.
CAUTION
Connecting to Electrical Supply
The power cord and plug are connected with this Water Heater. Find a separate socket for power
plug and make sure the socket is in rm contact with the plug. Ensure that reliable earthing has
been done.

13
Figure 14
Temperature Control Knob
Switch on the Water Heater’s power supply. The Power indicator lamp glows.
Temperature Setting
Turn the Temperature Control Knob clockwise for the device to commence heating and change the
set temperature. The Heating indicator lamp will glow. [The set temperature increases if the
Temperature Control Knob is turned clockwise]. Temperature can be adjusted from 25°C to
maximum 75°C. Recommended to keep Temperature Control Knob notch position always in
medium or above level.
Heating mode Standby mode
When the actual temperature of the water is
less than the set temperature, it enters into
Heating mode. The Heating indicator lamp
glows as shown in (Fig. 15).
After the Water Heater reaches set
temperature, it will enter into the Standby
mode due to the thermostat cut-o and the
Power indicator lamp glows and Heating
indicator lamp switch o as shown in
(Fig. 16).
Figure 16Figure 15
When the temperature of the water drops by 5°C from the set temperature due to usage of water,
the Water Heater again enters into the Heating mode.
Modes
There are two types of modes depending on the actual water temperature inside the inner tank of
the Water Heater:
Power
indicator
lamp
Heating
indicator
lamp

14
• Please turn o the power supply to the Water Heater prior to draining the Water Heater.
CAUTION
1. Switch OFF the electric supply to the Water Heater.
2. Open the hot water faucet until the water runs cool.
3. Close cold water supply.
4. Drain the water by lifting the Discharge Lever of the Multi-function Safety Valve upwards.
(Fig. 17).
Draining the Water Heater Tank
Whenever the Water Heater is not used for an extended period, unplug the unit and drain.
If it is below freezing temperature, you will need to unplug the unit and drain it.
Discharge Outlet
Discharge Lever
Figure 17

15
A. O. Smith ColourMatch System®
Colours shown are only indicative and may vary from
actual colours available.
You have the option of changing this panel to match your bathroom decor at a nominal cost
(for HSE-SAS models).
* You have the option of changing this panel to match your bathroom decor at a no cost. This option
is available only one time after purchase (for HSE-SDS and HSE-SGS models).
Call the A. O. Smith Customer Care Centre [1800-103-2468/1860-500-2468] or visit
www.aosmithindia.com to register your product within 60 days of purchase and ask for one of the
Decorative Front Panel colour options.
A. O. Smith ColourMatch System® allows your Water Heater to match the colours of your bathroom.
The product of your choice comes with either white or ivory body colours, along with the coloured
front panels as in the following table.
Decorative front panel White or invory White or invory Red
Body Colour White or invory White or invory White or invory
Cost of changing Decorative Nominal Cost No Cost* No Cost*
front panel
Models HSE-SAS HSE-SDS HSE-SGS

Changing the Decorative Front Panel
• Please ensure to switch o the power supply while changing the Decorative Front Panel and
pull out the power plug from the socket.
• An insulation layer is provided below the front panel which should not be replaced.
• While changing the front panel ensure that, none of the internal components are damaged
or removed.
WARNING
Please follow the instructions as shown in (Fig. 18).
Figure 18
1. Pull out the Knob. 2. Unscrew the screw on
the Decorative Front Panel.
3. Remove the Decorative
Front Panel to change.
16