A.O. Smith HSE User manual

EXPERT COMPANY SERVICE
www.aosmithindia.com
Toll Free No.: 1800-103-2468 or
SMS us: [phone] or
E-mail 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. Not available on public
holidays and under unavoidable circumstances. Available in select cities only.
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TIME FIX
HOUR RESPONSE
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DAY RESOLUTION
TIME FIX
Water Heater
HSE-HAS 15 and 25 Litres
Superior quality.
Longer warranties.
User Guide

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-efficient 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, fights 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 Toll Free Customer Care No. 1800-103-2468.
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 first
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 efficient solutions.
About A. O. Smith

Read Before Operation.......................................................... 1
General.................................................................................. 2
Specifications........................................................................ 3
Key Features .......................................................................... 5
Safety Precautions................................................................. 6
Installation ........................................................................... 6
Connecting Multi-function Safety Valve............................... 8
Connecting to Water Supply................................................. 10
Operation .............................................................................. 11
Troubleshooting .................................................................... 14
Circuit Diagram .................................................................... 15
Warranty................................................................................ 16
Jurisdiction............................................................................ 17
Expert Company Service ....................................................... 17
Service and Maintenance ..................................................... 19
Contents
Discharge Tube
Wall Mounting
Accessories
User Guide
What's in the box?
Electric
Water Heater
Multi-function
Safety Valve

1
Read Before Operation
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 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-HAS 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.

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
Important
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 a Qualified 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.
2. Verify that the voltage being supplied corresponds to that which is marked on the
water heater manual.
WARNING
DO NOT use this water heater if any part has been under water. Immediately contact a
Qualified 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.
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-HAS 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
Specifications
Right Hand Side Inlet Outlet Models Left Hand Side Inlet Outlet Models
Model HSE-HAS 15 HSE-HAS 25 HSE-HAS 15 - LHS HSE-HAS 25 - LHS
A [mm] 320 320 320 320
B [mm] 604 804 604 804
C [mm] 100 100 100 100
D [mm] 126 126 126 126
E [mm] 180 380 180 380
F (mm) 334 334 334 334
Dimensions
Note: Image may vary from the actual product.
Figure 1
Model HSE-HAS 15 HSE-HAS 25
HSE-HAS 15 - LHS HSE-HAS 25 - LHS
Volume [L] 15 25
Power [W] 2000
Voltage/Frequency [V/Hz] 230~/50
Actual Stdg. Loss [kWh/24h/45ºC diff.] 0.507 0.618
Reheating Time for 35ºC rise [in min.] 20 30
Temperature range [ºC] 25-75 ±5
Rated water pressure N/cm280
Water head (metres) 80
Inlet/Outlet connections [inch] ½ BSP
Net Weight (kgs) 12 18
C
DE
F
ØA
B
Front view
Rear view
Right view
C
DE
F
ØA
B
Front view
Rear view
Left view
Right Hand Side Inlet Outlet Models Left Hand Side Inlet Outlet Models

4
Figure 2
Note: The above image shown is Left Hand Side model.
Item Description
1 Cold water inlet pipe with diffuser
2 Hot water outlet pipe
3 Multi-function Safety valve (Insulated)
4 Temperature Control Knob
5 Thermostat
6 Blue sticker
7 Red sticker
8 Anode
9 Heating element
10 Thermal Cut-out
11 Installation Bracket
8
Without Service CoverWith Service Cover
10
9
7
6
2
5
4
3
1
11

5
Key Features
Note: A. O. Smith reserves the right to amend or modify the specifications and features at any
time, as and when required without any prior notification.
Thermal Cutout
If the water temperature exceeds the highest preset level, the thermal cut-out
cuts off the power supply to assure safety.
Temperature Control Knob
The temperature control knob allows you to set the temperature anywhere
between 25ºC to 75ºC.
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.
Multi-function Safety Valve
The Multi-function safety valve is designed to automatically relieve and
discharge water, in case the pressure overshoots the preset limits.
Glass Coated Heating Element
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.
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 fight these elements and thus prolong the life of the water heater.

Do not install the water heater where there is
direct sunlight or rain. It is has to be installed
indoor only.
During Installation
6
Figure 3
Do not install the water heater where water
splashes on the water heater.
Figure 4
Safety Precautions
Installation
Before installing, ensure that the following tools are available:
Figure 5
Tools Required
CAUTION
Bubble Level Indicator Measuring Tape
Adjustable Wrench
Impact
Drill Tool
HammerTeflon Tape Ruler
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
CM
0 1 2 3 4 5 6 7 8 9 10 11 12
INCH
CAUTION

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
horizontally with water connection at the
bottom.
 :DWHUKHDWHUPXVWEHORFDWHGZLWKLQ
3-1/2ft. (approx.) from a 230V electrical
outlet with proper grounding.
 0DNHVXUHWKDWWKHZDOOFDQZLWKVWDQG
at least twice the weight of the water
heater when completely filled with
water.
Figure 7
Figure 8
 8VHDGULOOELWZLWKGLDPHWHURIPPWR
drill 2 holes at least 90mm deep in the
wall (Step 3). The two holes should be
aligned horizontally. The distance (D)
between 2 holes is given in the below
table (Step 2).
 ,QVHUWWKH([SDQVLRQDQFKRULQWRWKH
hole (Step 1).
 3ODFHWKH+DQJLQJVFUHZRYHUWKH
Expansion anchor and tighten the
Hanging screw by rotating it till it gets
fixed steadily (Step 2).
Figure 9
Ceiling
Water
heater
Wall
3-1/2 ft.
Solid
Concrete
Wall
False
Wall
D
1
2
3
Hole
Concrete
Wall
90 mm
D
Drilling
Tool Models D (mm)
HSE-HAS 15
HSE-HAS 15-LHS 180
HSE-HAS 25
HSE-HAS 25-LHS 380
Expansion
anchor
Hole
Concrete
Wall
Concrete
Wall
1
2Hanging
Screw