A.O. Smith EWJH 15 User manual

Size: 210mm (H) x 148mm (W)
Part No.: 325174-000_R0
Approved on: 17-09-2012
Water Heater
EWJH 15 & 25 Litres
User Guide
HIGH STRENGTH
STEEL TANK
DOUBLE COATED
GLASS LINING
GLASS COATED
HEATING ELEMENT
WIRED REMOTE
CONTROLLER
Part No.:
Revised on: 28-03-2013
Revision: All the logo with ® has been changed.
In Key Features

What's in the box?
Electric Water Heater with
Wired Remote Controller
Mounting
Accessories
User Guide
Discharge Tube
Safety Valve
Contents
User Instructions .................................................................................... 1
Specifications ......................................................................................... 2
Key Features ........................................................................................... 5
Installation.............................................................................................. 6
Directions for use................................................................................. 11
Troubleshooting ................................................................................... 13
Circuit Diagram .................................................................................... 14
Warranty Card ...................................................................................... 15
Jaquar and Company Pvt. Ltd. ............................................................ 21
Water Heater
EWJH 15 & 25 Litres
User Guide
* Conditions Apply
HIGH STRENGTH
STEEL TANK
DOUBLE COATED
GLASS LINING
GLASS COATED
HEATING ELEMENT
WIRED REMOTE
CONTROLLER

User Instructions
Please read the instructions carefully before the installation or operation of the water heater.
This user guide is meant for your future reference and is applicable for the following models.
 EWJH - 15
 EWJH - 25
 EWJH 15 - LHS
 EWJH 25 - LHS
Please refer the invoice or the product nameplate for identifying the model name. Please follow
the instructions accordingly.
• Water heater shall be installed by recommended professional installers only. Either
A. O. Smith or Jaquar shall not be responsible in case of installation of water heater by
customers themselves / unauthorised installers by using any installation materials.
• The water heater is forbidden to install vertically or alter the inlet and outlet side
configurations.
• The above products come in a default wall mounting configuration. Please refer the
instructions to convert this to a floor mounting configuration.
• In case of installation of water heater by customers themselves / unauthorised installers,
A. O. Smith or Jaquar shall not be liable either directly or indirectly for any adverse effects
on normal operation and service performance of the water heater, including but not
limited to pipeline leakage, harmful effects on or damage to the water heater body or
damage to the property / any other losses incurred by customers.
• After installation and operation of the water heater, users should inspect the water
heater regularly and make necessary maintenance according to the service conditions.
If any abnormality occurs, stop the operation of the water heater immediately and for
repair to ensure the normal, safe and reliable operation of the water heater.
• Prior to any maintenance or repair of the water heater, please ensure to cut off the
power. Those installers who are not recommended by us should not adjust or repair the
water heater.
• This water heater is equipped with safety valve. For the sake of safe operation, the
mounting position of the valve should not be changed without permission and the
blockage of valve drain outlet is strictly prohibited. The discharge tube must be provided
for the safety valve, mounted downwards continuously and should not be knotted in the
middle. The discharge tube shall be directly connected to the floor drain.
• Before installing the water heater, confirm that the power of water heater matches its
electric meter capacity and power wire.
• This water heater should be earthed reliably. It is prohibited to connect the earth wire to
neutral wire or tap water pipe.
1
Caution: Failure to follow the instructions provided in the user guide may lead to risk of
fire and could cause property damage and / or personal injury or death.
Warning: Power-on and operation will be permitted only after reliable grounding is
provided for the power socket. The water heater is strictly forbidden for use in
circumstances where no safe grounding or well-drained floor drain is provided.
In the installation area, it should be ensured that the water leakage of the water
heater or joints may not cause damage to the articles in adjacent region or lower
portion of the building.

Specifications
2
Model EWJH 15 - LHS EWJH 25 - LHS
Volume [L] 15 25
Power [W] 2000 2000
Voltage/Frequency [V/Hz] ~230/50 ~230/50
Actual Stdg. Loss [kWh/24h/45°C diff.] 0.525 0.672
o
Max. Stdg. Loss [kWh/24h/45 C diff.]
[as per IS 2082:1993 amended in 2002] 1.138 1.386
Reheating Time for 35°C rise [in min] 20 35
Temperature range [°C] 35-75 35-75
2
Rated water pressure N/cm 80 80
Water head (metres) 80 80
Inlet/Outlet connections [Inch] ½ ½
Model EWJH - 15 EWJH - 25
Volume [L] 15 25
Power [W] 2000 2000
Voltage/Frequency [V/Hz] ~230/50 ~230/50
Actual Stdg. Loss [kWh/24h/45°C diff.] 0.525 0.672
o
Max. Stdg. Loss [kWh/24h/45 C diff.]
[as per IS 2082:1993 amended in 2002] 1.138 1.386
Reheating Time for 35°C rise [in min] 20 35
Temperature range [°C] 35-75 35-75
2
Rated water pressure N/cm 80 80
Water head (metres) 80 80
Inlet/Outlet connections [Inch] ½ ½
For Right Hand Side Inlet Outlet Models
For Left Hand Side Inlet Outlet Models
Note:
1. The inlet and outlet tubes are identified by blue and red ring caps respectively.
2. Please note that in all models (LHS and RHS variants) and in all configurations (wall &
floor mounted), the outlet tube should be vertically above the inlet. Refer figures 5A &
5B respectively.
3. The water heater should not be installed in any other configuration that may alter this
arrangement.
4. LHS variant should be used for left hand side plumbing connections and RHS variant
should be used for right hand side plumbing connections.
5. It is not permitted to install a RHS variant in left hand side configuration by rotating the
unit and vice versa.
6. Please note that the A. O. Smith Jaquar logo visible in the front and in horizontal
orientation represents correct positioning of the unit.

3
Dimensions and Part Descriptors
Part Descriptors
1 Outlet
2 Inlet
3 Wired Remote Controller
4 Red Cap
5 Blue Cap
6 Jacket
7 Left Cover
8 Right Cover
9 Service Cover
10 Anode
11 Heating Element
12 Tank
13 PU Insulation
14 EPS Insulation
15 Thermal Cutout
16 Installation Bracket
16 16
ED
Section F-F
15
11
14
10
13
12
14
1
2
Model EWJH - 15 EWJH - 25
A1 [mm] 628 908
A2 [mm] 641 921
B [mm] 80 80
C [mm] 310 310
D [mm] 167 247
E [mm] 260 380
85
4
9
F
F
6
7
B
A1
A2
C
3

4
Dimensions and Part Descriptors
Part Descriptors
1 Outlet
2 Inlet
3 Wired Remote Controller
4 Red Cap
5 Blue Cap
6 Jacket
7 Left Cover
8 Right Cover
9 Service Cover
10 Anode
11 Heating Element
12 Tank
13 PU Insulation
14 EPS Insulation
15 Thermal Cutout
16 Installation Bracket
1616
ED
Section F-F
15 11
14 10 13 12 14
1
2
Model EWJH 15 - LHS EWJH 25 - LHS
A1 [mm] 628 908
A2 [mm] 641 921
B [mm] 80 80
C [mm] 310 310
D [mm] 167 247
E [mm] 260 380
8 5
4
9
F
F
67
B
A1
A2
C
3
Caution:
*Safety valve has been provided
with the Water heater. The valve is
preset at 8 bar (0.8 MPa) rated
pressure. Install the valve on the
inlet side as shown in installation
diagram.
Warning:
Do not use the water heater
without installing the safety
valve. Once Installed, do not
detach or tamper the safety valve
in the water heater.

This is the only Horizontal Water Heater in India which gives you a 4 year*
warranty on the Glass Coated Heating Element.
4 year Warranty on Heating Element
4
5
Key Features
Anode Rod
Safety Valve
Thermal Cutout
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.
Double Coated Inner Tank
Glass Coated Heating Element
Wired Remote Controller
The safety valve is designed to automatically relieve and discharge water in case
the pressure overshoots the preset limits.
If the water temperature exceeds the highest preset level, the breaker rapidly
cuts off the live line and the neutral line simultaneously to assure safety.
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.
Double coating of the glass lining increases glass thickness and ensures good
glass coverage, thus reducing the risk of tank steel corrosion.
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.
Displays the water temperature, Timer selection allows you to set the time when
the heater will start to heat and Test Button for testing current leakage.
Temperature can be precisely set between 35°C to 75°C. It is easy to operate the
water heater with wired remote controller even if the water heater is placed in
an enclosed area.

Installation
Mounting
Fig. 2 Wall mounting bracket
6
A
1. Make sure that the wall can withstand at least twice
the weight of the water heater when completely filled
with water.
2. Before locating the position for installation of the
water heater, make sure that there is sufficient
clearance available for the product. This clearance is
required for easy installation and maintenance. Refer
Fig. 1A or Fig. 1B for minimum clearances required
according to the model.
3. Use a drill bit with diameter of 10 mm to drill 2 holes
at least 90 mm deep in the wall (Fig. 3). The two holes
should be aligned horizontally. The horizontal distance
between the 2 holes is shown in the above table (Fig. 2).
4. Insert the expansion anchors into the holes. Place the wall mounting bracket over
the expansion anchors and tighten the screws on the bracket (Fig. 3).
5. Place the water heater on wall mounting bracket (Fig. 4) using hanger hooks. Tug
downwards on the heater to ensure that the water heater is fixed steadily.
Fig. 3 Installation of
wall mounting bracket
Expansion tube
Hanger
Screw
90
Fig. 4 Inserting the water heater
into mounting bracket
Wall
Water
Heater
1
2
3
Fig. 1A Position for installation
Fig. 1A Applicable for models EWJH 15 and EWJH 25
Fig. 1B Position for installation
Fig. 1B Applicable for models EWJH 15 - LHS and EWJH 25 - LHS
A (mm)
260
380
Model
EWJH 15
EWJH 15 - LHS
EWJH 25
EWJH 25 - LHS
Ceiling Wall
RHS
Water heater
400 mm
400 mm
Ceiling
Wall
400 mm
400 mm
Water heater
LHS

7
Note:
Steps 1 through 7 shown above is applicable
for models EWJH 15 and EWJH 25. Similar
steps needs to be followed for EWJH 15 - LHS
and EWJH 25 - LHS.
Conversion From Wall Mounting Installation To Floor Mounting
Step 2: Unscrew the four bolts, and remove
the two brackets
Step 3: Turn 90 degrees and remove four paper
disks
Step 4: Place the paper disks to cover the holes
on the jacket
Step 1: Factory default installation (wall hung)
Step 5: Use four screws (accessories) to fix
the two brackets in place
Step 7: Floor installation Warning:
The water heater comes with default wall hung
installation. The same should not be used for
floor mounting. Separate floor mounting
accessories have been provided for floor
mounting option.
Step 6: Assembly finished depiction

8
RHS
LHS
Fig. 5A Installation diagram
Fig. 5B Installation diagram
*Flexible Hoses to be procured by the customer, not part of standard product.
Note: The product should be installed by applicable inlet outlet configuration only.
• Correct Installation is indicated by the A. O. Smith Jaquar logo facing forward and in
horizontal condition.
• Refer Fig. 5A & Fig. 5B as applicable to the model to be installed.
• Please note that A. O. Smith Jaquar logo turned upside down or A. O. Smith Jaquar
logo facing upwards indicate a wrong installation.
Fig. 5A Applicable for models EWJH 15 and EWJH 25
Fig. 5B Applicable for models EWJH 15 - LHS and EWJH 25 - LHS
Lever
Safety Valve
To Drain
Blue Cap
Red Cap
Hot Water Tap
Cold Water Tap
Discharge Tube
*Flexible Hose
Lever
Safety Valve
To Drain
Blue Cap
Red Cap
Cold Water Tap
Hot Water Tap
Discharge Tube
*Flexible Hose

1. Open a hot water faucet nearby to permit the air to escape.
2. Open the cold water inlet valve fully, filling the heater and the piping.
3. Close the hot water faucet when water flows.
4. Check all the connections to see if there is any leakage. In case of a leakage, drain the
heater completely, repair the leaking joint and then refill the heater.
Electrical Connections
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 firm contact with the plug. Ensure that reliable
earthing has been done.
9
Caution:
• Connect the water heater using independent sockets, do not use adapters. Use
multimeter to check whether the live line and neutral line are not reverse, to ensure
complete safety.
• Before installing the water heater, confirm 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 tap water pipe.
Attention:
• Make sure a suitable sealing tape is used for all connections to prevent leakage.
• Discharge tube should be installed downwards without any loops, folds or knots.
Ensure that the free end of the discharge tube is placed over a suitable drain and away
from the users.
• Discharge tube is provided to release the discharge from the water heater (through
the safety valve) in case excessive pressure is developed. The contents of the discharge
from the Safety valve may be hot and may cause burns to the users and damage
nearby objects if not properly routed to a drain.
• It is recommended to operate the discharge lever in the 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 filled completely in the water heater before
switching it ON.
Water Filling
Plumbing
1. Make necessary plumbing with reference to the installation diagram. (Fig. 5)
2. A. O. Smith recommends nylon/SS braided hoses having a minimum pressure rating of
8 Bar and hoses should be compatible for hot water applications.
3. Connect the cold water pipe to the inlet [Blue Cap].
4. Connect the hot water pipe to the outlet [Red Cap].
5. Attach the discharge tube to safety valve as shown in installation diagram (Fig. 5A,B & 6A,B).

10
Fig. 6A Safety valve
RHS
Fig. 6B Safety valve
LHS
For draining water from the water heater, following steps needs to be followed:
1. Switch off the electric supply to the water heater.
2. Open the hot water taps until the water is not hot any more.
3. Close cold water supply.
4. Drain the water by moving the lever of safety valve in the direction of the arrow as
indicated in the diagram (Fig. 6A & Fig. 6B).
Draining
Installation of wired remote controller
Fig. 7 Installation of Bracket for
wired remote controller
Fig. 8 Bracket for
wired remote controller
24mm
Wall
For convenience of operation, please install the wired remote controller in an easily accessible
location on the wall near the water heater. The length of the wire for wired remote controller is
approximately 8 feet. Please ensure that the wired remote controller is neither immersed in
water nor installed in a place where it gets into direct water contact.
1. Drill two holes on the wall by using an electric impact drill with 5mm bit.
2. The holes must be aligned vertically (Fig. 7). Space between two holes should be 24mm (Fig. 8).
3. Fix the bracket on the wall by expansion tubes and screws attached.
Caution:
• Once the mounting, plumbing, discharge tube, power connection and water filling
is completed, then only the power supply should be given.
• During repair or periodic maintenance, if necessary, the power cord or Internal
electrical wiring should be replaced by authorised service personnel only.
• It is not permitted for the power supply plug and cord to be replaced or altered by
unauthorised people or by the users themselves. This will make the warranty null and
void and may cause the water heater operation hazardous.
Safety Valve Port
Discharge Tube

11
Directions for use
1 On/Off
The water heater will be switched on after the “On / Off” button is pressed. The default
status of the control board working for the first time is as follows: heating light is turned
on; default setting of the temperature is 70°C; actual temperature will be displayed in the
LED panel.
2 Temperature Setting
This water heater displays the actual temperature and the set temperature based on key
pressed. The actual temperature refers to the temperature of the water in the water heater;
the set temperature refers to the temperature that the user expects the water heater to
reach while heating the water. The user can choose to change the set temperature any time
by pressing the ““ or ““ button. When user presses the “” or “” button, the digital
LED will flash and display the setting temperature, when user stops pressing the ““ or
““ button, the digital LED stops flashing. 4 seconds later, when the temperature setting is
completed then the LED displays the actual temperature.
Fig. 9 Wired remote controller
Caution:
• Before using the water heater, make sure the inner tank is completely filled with
water and the power plug has been connected properly.
• Operating the water heater with insufficient or No water may result in permanent
damage to the water heater and may cause damage to the property and injuries to
the users.
• It is recommended that the wired remote controller should be installed on the
remote bracket (Fig. 8). Ensure that the wired remote controller does not get in direct
contact with water. do not use wet hands while operating the remote.
Warning:
• The wired remote controller works with the power of water heater (No separate
power connection or battery required). Do not open the wired remote controller.
On / Off
Increase
Decrease
Timer
Heating
Indicator
Test
Display LED

12
The value of the set temperature can be increased or decreased by one unit when the
button is pressed. If the button is pressed continuously, the setting temperature increases
or decreases continuously. If the button is released, it will exit the temperature setting
mode after the flashing stops. The temperature setting is within 35°C - 75°C.
3 Timer
Press the “TIMER” button to set the time this is when the water heater will start to heat.
The setting range is from 23 to 0. The running mode of TIMER is countdown mode, for
example, if the user wants the water heater to start heating 7 hours later, set the digital
LED to 7, the timer will start to count, 7 hours later, the heater will start to heat.
After pressing the “TIMER” button, the digital LED will flash, then press the ““ or ““
button to set the time when you want to heat the heater, when user stops pressing the
“” or ““ button, the digital LED will stop flashing. 4 seconds later, the timer setting
completes then the LED displays the actual temperature.
In the “TIMER” mode, the green light besides the “TIMER” button will be lit. The setting
time will be memorized until the “TIMER” button is pressed and the TIMER mode is
cancelled.
Note: In case there is an interruption in power supply in your premises, the green light
beside the timer button ceases to glow. The user would need to set the countdown timer
again as mentioned above.
4 TEST button
Press the TEST button to test whether the current leakage protection function is normal in
the controller.

13
Troubleshooting
Problem Possible Cause(s) Solution
• No display on wired Heater is not plugged in Plug in the heater
remote controller
Thermal cutout trips Call Customer Care Centre
• No hot water No power supply in power Check the power socket
socket on the wall
Control circuit or internal Call Customer Care Centre
wiring error
• Water temperature Electronics circuit damaged Call Customer Care Centre
is too high
• Display, no hot water Heating element(s) Call Customer Care Centre
breakdown or internal
wiring error
• Piping connection Connection not sealed Re-connect piping, using tape
leaks thread sealant.
Refer plumbing instructions on
page 9
• Water leakage Leakage in tank or Shut off power immediately
from product other parts and Call Customer Care Centre
• Wired remote controller Leakage of electricity Call Customer Care Centre
displays error code “E0”
• Wired remote controller Temperature sensor circuit Call Customer Care Centre
displays error code “E1” short or open
• Wired remote controller Extra high temperature Call Customer Care Centre
displays error code “E3”
• Wired remote controller Current leakage detection Call Customer Care Centre
displays error code “E4” circuit fault
• Wired remote controller Low voltage protection Use after voltage returns to
displays error code “E5” (>100 V & <275 V) normal

Circuit Diagram
L
N
Green and Yellow
Link Water Tank
PE
Mains Board
High Limit
Red
Black
Blue
Brown
Element
Control Board
Sensor
7- Core Harness
N
L1
14

Dear Customer,
Congratulations! You have bought a world-class product manufactured by A. O. Smith India Water
Heating Private Limited. It is a wholly owned subsidiary of A. O. Smith Corporation (A. O. Smith).
A. O. Smith is one of the largest water heater manufacturer in the world and a global leader in
innovative technology and energy efficient solutions. Jaquar, the leader in the Indian bath fitting
industry has always emphasised on Quality, Reliability and Service. The key philosophy of Jaquar is
to provide consumers more value for their money. The reason why Jaquar believes in that - Its
products must make Friends not just Customers.
To further its commitment to customer delight, Jaquar offers an exclusive premium range of water
heaters manufactured by A. O. Smith India Water Heating Private Limited.
Our customer-centric approach manifests in many ways. Jaquar has the largest sales and after sales
network with 22 regional centres, over 2200 local dealers complemented by over 225 service
technicians.
If you need any further assistance, please call our Customer Care.
Keep smiling for years to come.
Customer Care No.
1.800.121.6808
J A QUA R CUS T O M ER C A R E ( A )
15

C O N D IT I ONS O F W A R R A N T Y
• This warranty certificate must be duly filled, stamped and signed by the dealer.
This certificate must be preserved and produced whenever required.
• During the warranty period and under normal use, if the product is found to be of
faulty manufacture, the same will be repaired or replaced upon production of this
warranty certificate, at our option, without charge either for part or labour.
No allowance however, will be mode for labour, transport charges consequential
damages, losses or any other incidental expenses incurred.
• This warranty is not valid for damage resulting from faulty installation,
mishandling, negligence, accidents and unauthorised repairs.
We hereby warrant this product against failure arising through faulty designs,
material or workmanship for a period as mentioned below from the date of purchase
subject to certain conditions specified.
EWJH / EWJH - LHS
• Tank - 7 years
• Heating Element - 4 years
• Rest of the parts - 2 years
Name of Buyer: ..........................................................................................................
Address: ....................................................................................................................
..................................................................................................................................
Ph: ............................. Mobile: ............................... E-mail: ......................................
Date of Purchase: ............................................ Invoice No.: .......................................
Dealer's Name & Address
(Stamp)
..............................................................
.............................................................. ..................................
.............................................................. Signature of the Buyer
Jurisdiction: The courts of competent jurisdiction at Bangalore, Karnataka shall have exclusive
jurisdiction over all matters arising out of any disputes in relation to the product.
Warranty Card
16

Dear Customer,
Congratulations! You have bought a world-class product manufactured by A. O. Smith India Water
Heating Private Limited. It is a wholly owned subsidiary of A. O. Smith Corporation (A. O. Smith).
A. O. Smith is one of the largest water heater manufacturer in the world and a global leader in
innovative technology and energy efficient solutions. Jaquar, the leader in the Indian bath fitting
industry has always emphasised on Quality, Reliability and Service. The key philosophy of Jaquar is
to provide consumers more value for their money. The reason why Jaquar believes in that - Its
products must make Friends not just Customers.
To further its commitment to customer delight, Jaquar offers an exclusive premium range of water
heaters manufactured by A. O. Smith India Water Heating Private Limited.
Our customer-centric approach manifests in many ways. Jaquar has the largest sales and after sales
network with 22 regional centres, over 2200 local dealers complemented by over 225 service
technicians.
If you need any further assistance, please call our Customer Care.
Keep smiling for years to come.
Customer Care No.
1.800.121.6808
J A QUA R CUS T O M ER C A R E ( J )
17

C O N D IT I ONS O F W A R R A N T Y
• This warranty certificate must be duly filled, stamped and signed by the dealer.
This certificate must be preserved and produced whenever required.
• During the warranty period and under normal use, if the product is found to be of
faulty manufacture, the same will be repaired or replaced upon production of this
warranty certificate, at our option, without charge either for part or labour.
No allowance however, will be mode for labour, transport charges consequential
damages, losses or any other incidental expenses incurred.
• This warranty is not valid for damage resulting from faulty installation,
mishandling, negligence, accidents and unauthorised repairs.
We hereby warrant this product against failure arising through faulty designs,
material or workmanship for a period as mentioned below from the date of purchase
subject to certain conditions specified.
EWJH / EWJH - LHS
• Tank - 7 years
• Heating Element - 4 years
• Rest of the parts - 2 years
Name of Buyer: ..........................................................................................................
Address: ....................................................................................................................
..................................................................................................................................
Ph: ............................. Mobile: ............................... E-mail: ......................................
Date of Purchase: ............................................ Invoice No.: .......................................
Dealer's Name & Address
(Stamp)
..............................................................
.............................................................. ..................................
.............................................................. Signature of the Buyer
Jurisdiction: The courts of competent jurisdiction at Bangalore, Karnataka shall have exclusive
jurisdiction over all matters arising out of any disputes in relation to the product.
Warranty Card
18