A.O. Smith Jaguar CEWHR User manual

CEWHR Manual
Size: 7.5 (w) x 9.0 (h) Inches
User Guide
CEWHR 35, 50, 70, 100 Litres
Water Heater
*
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* Wired remote with LCD display enables the water heater to be installed
in the loft with easy access to all controls through the remote panel.
®
BLUE DIAMOND
GLASS LINING
DUAL GLASS LINED
HEATING ELEMENTS
HIGH STRENGTH
STEEL TANK
ELECTRONIC CONTROLS
AND DISPLAY

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Bracket
Accessory
Remote
Control
Assembly
Discharge
Pipe
What's in the box?
Electric
Water Heater
User
Manual
Relief
Valve
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Contents
Specifications.................................................................1
Physical Characteristics................................................1
Key Features...................................................................2
Dual Glass Lined Heating Elements
Blue Diamond Glass Lining
Electronic Controls and Display
Anode Rod Protection
Safety Valve
Safety Features..............................................................3
High Temperature Limit Protection Switch
General Safety Information ........................................3
Installation Instructions...............................................4
Mounting
Plumbing
Control Box Connection
Power Connection
Water Filling
Operation Instructions.................................................8
Repair and Maintenance ...........................................11
Troubleshooting..........................................................12
Caution .........................................................................13
Wiring Diagram...........................................................13
Jaquar Mercantile ~ Contact details......................14
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Specifications
D
S
L
100
Hot Water Outlet Cold Water Inlet
½” BSP Thread
[12.7mm]
Safety Valve
A.O. Smith 70L
Physical Characteristics
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Type CEWHR
Capacity (L) 35 50 70 100
Voltage (V)/ Frequency (Hz) 220~/50 220~/50 220~/50 220~/50
Input Wattage (kW) 1/1.5/2.5 1/1.5/2.5 1/1.5/2.5 1/1.5/2.5
Current (A) 4.6/6.8/11.4 4.6/6.8/11.4 4.6/6.8/11.4 4.6/6.8/11.4
o
Actual standing loss [kwh/24h/45 C diff.] 0.684 0.762 0.920 1.073
o
Maximum standing loss [kwh/24h/45 C diff.] 1.584 1.832 2.079 2.376
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Reheating time for 50 C rise (in mins) 67 96 144 192
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Temperature range ( C) 35–75 ± 5 35–75 ± 5 35–75 ± 5 35–75 ± 5
2
Rated water pressure N/cm 80 80 80 80
Water head (metres) 80 80 80 80
Net Weight (Kg) 22 24 31 34
L (mm) 760 880 905 1070
S (mm) 217 217 250 250
D (mm) Ø 395 Ø 395 Ø 463 Ø 463
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A. O. Smith reserves the right to make product changes or improvements at any time without notice.

SAFETY VALVE
This water heater has a temperature and pressure safety valve. This valve is designed
to automatically relieve and discharge water incase the pressure or temperature
overshoots the preset limits
Safety Valve helps to relieve and discharge water in case pressure or temperature exceeds
preset limit
The colored LED module displays actual temperature and set temperature. It also
displays off-peak, timing, clock and power modes to enable you set these options.
Electronic Controls & Display helps set temperature and power options
®
Blue Diamond Glass Lining offers the best protection against tank corrosion
®
The new Blue Diamond technology with enhanced levels of zircon increases the life
of the water heater. The lining is proven to be stronger and more water-resistant than
any other in the Industry.
Dual Glass Lined Heating Elements increases the life of the heating element and heats
water faster
Dual Glass Lined Heating Elements provide extended life to the water heater by
preventing Scale Formation on the element surface. They help in quick water heating.
In the event of one glass lined element failing, the other element ensures that water
gets heated. It is recommended in all areas that have hard water.
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2
DUAL GLASS LINED
HEATING ELEMENTS
Key Features
2
The tank has an anode rod system with a stainless-core that is designed to protect the
tank from corrosive elements. The system uses a special cathodic action to fight the
corrosive elements which in turn prolongs the life of the water heater.
Anode Rod Protects the tank from corrosion
®
BLUE DIAMOND
GLASS LINING
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ANODE ROD
PROTECTION
ELECTRONIC CONTROLS
AND DISPLAY

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Safety Features
The water heater employs a high temperature limit protection switch which is reset by manual operation.
The switch rapidly cuts off the phase and neutral line simultaneously to guarantee safety in case the water
heater happens to be faulty and the water temperature exceeds the highest temperature preset in the
thermostat. If this happens, please call the Customer Care Center.
High temperature limit protection switch
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We strongly suggest that you read this manual thoroughly before installation and use of this water heater.
Be sure to keep the manual for future reference.
• A. O. Smith Company will not be liable for any damages resulting from incorrect installation of this
water heater. Only professionals recognized by A. O. Smith should be allowed to install this water
heater for you.
• Be sure to shut off the power before carrying out any repair and maintenance on this water heater.
Non-professionals should not be allowed to adjust or repair this water heater.
• Hot water may cause serious scalding injury. Hot water must be mixed with cold water before usage.
• The water heater may produce steam or extremely hot water if operated without enough water inside
the tank. Make sure the water heater is full of water. Any part supposed to be immersed in water
needs to be examined or repaired by qualified professionals before further use.
• In case of a damage to the power cord of the water heater, only manufacturer’s customer service
personnel or similar professionals are allowed to replace it. All key parts of this water heater are
electrically insulated and have heat-insulated layers, so users may be assured while using it.
• The water heater is equipped with a pressure-relief safety valve. It is prohibited to change the
installation position of the pressure-relief safety valve without permission, or block its outlet. The
pressure-relief safety valve must be equipped with a discharge pipe, which is facing downward
without any knot and connected directly to the floor drainage.
Attention: If the content in the manual is not strictly abided by, fire may be caused which may lead to
property loss, personal injuries or death.
Warning: A power socket cannot be used unless it is securely grounded, and it is forbidden to use a
water heater without being securely grounded. Floor drain openings with good drainage
conditions should be arranged near the water heater.
General Safety Information

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Installation Instructions
Place the heater near an electric power socket, floor drain and the terminal for hot water utilization. There
must be a floor drainage, since there may be water flowing out of the pressure relief port of the press
relief safety valve, when the water heater is being used. Be sure the inlet and outlet of the heater are on
the bottom and are facing downward. It is forbidden to install the water heater vertically.
Warning: Be sure to install the water heater with the provided mounting hangers. The heater can be hung
up only after it is certain that the mounting hangers are solidly mounted. Serious damage and
harm may result if the heater falls off from the wall.
Installation Procedure and Cautions
• Make sure that the wall can withstand fourfold weight of a fully filled water heater.
• To locate the fixing bolts, make sure that there is a clearance of no less than 300 mm between the
right side of the heater and the wall in order to open up the plastic service cover for maintenance or
reset the high limit when necessary. In case, the water heater is embedded in the ceiling, the right side
ceiling of the heater should be removable so as to remove the plastic service cover for maintenance
when necessary.
• Use a drill bit with a diameter of 10 mm to drill 2 holes at least 90 mm deep in the wall. The 2 holes
should be in line horizontally. The distance between the 2 holes is as shown in the below diagram.
• Use the inner hex wrench and expansion bolts to mount and fix the hangers on the wall. Refer to the
first diagram on next page.
Particular Cautions
• The nylon expansion tube must be put through the hole of the hanger first, before being inserted into
the drilled hole.
• Only special hex wrench should be used to drive the bolt into the nylon expansion tube. Once, the bolt
head has pressed against the hanger plate and made the hanger unmovable, stop further tightening
to prevent damaging the nylon tube.
Model E (mm)
CEWHR-35 260
CEWHR-50 380
CEWHR-70 380
CEWHR-100 380
E
Mounting
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Expansion tube
Hanger
Screw
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• Hang the water heater on the wall by placing the 2 holes of the mounting bracket onto the hanger
hooks. Move the water heater downward to ensure that the square holes are pressing on the root of
the hanger hooks and confirm water heater is fixed steadily.
Caution: The provided mounting hangers can only be used on solid cement wall. Inappropriate
installation may result in heater falling down. See the diagram below for details.
Correct Wrong
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Connect the pressure-relief safety valve in the water inlet (on the side of the blue plug cap) in the
direction of the arrow pointing in the direction of water flow (i.e. pointing to the water heater). Connect
hot water pipe to the outlet (on the side of the red plug cap). See above content on safety valve for
the installation of the safety valve. In case, the water pressure is close to over the safety valve
rating (0.8Mpa), please install a pressure-reducing valve in the inlet piping with sufficient distance
from the heater. Refer to the below diagram for water connection details.
Attention: Make sure a suitable tape thread sealant is used for all connections to prevent leakage.
Meanwhile, the safety valve must not be excessively tightened so as to prevent damage.
Plumbing
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1. Make necessary plumbing with reference to the below diagram.
2. It is recommended that suitable nylon braided hoses should be used. These hoses should have a
minimum pressure rating of 8 Bar and should be compatible for hot water applications.
3. Connect the cold water pipe to the inlet [blue].
4. Connect the hot water pipe to the outlet [red].
Attention: Make sure a suitable sealing tape is used for all connections to prevent leakage. Meanwhile,
the safety valve must not be screwed too tight to prevent damage.
Water Connection
Cold Water Inlet
Handle
Discharge Pipe [Connected to Drain Pipe]
Safety Valve
Hot Water Outlet

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The power cord and plug have been equipped and connected well with this water heater. Just plug it into
a corresponding socket.
Attention: Please make sure the water heater and the socket are appropriately grounded. A separate
socket should be used. Moreover, the socket must be of a good quality to ensure proper
contact with the plug. The rated current of the socket should not be less than 15A.
Electrical Power Wiring
Once the piping has been connected, open the cold water valve and hot water faucet to fill the water
heater and drain the air out until water flows continuously from hot water faucet. This indicates that the
heater is full. Then, close the hot water faucet and check all the connections to see if there is any leakage.
If it leaks, drain the heater completely, repair the leaking joint and then re-fill the heater.
Water Filling
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If the remote wire is to be installed on the wall by wire slot or wire clip, the control box will be
installed on the surface of the wall by box hanger which has been fixed on the wall previously. If
the remote wire is prepared to be embedded into the wall through wire tube, the installation
operation will be as follows:
1 First, unscrew the four screws in the box and open the box.
2 Second, take out the remote wire and pull it out from the wire terminal.
3 Third, put the wire through the wire tube in the wall (take care so as not to damage the eight-core
plug and wire) and plug the eight-core wire terminal into the controller.
4 Lastly, close the control box cover with screws and fix it onto the pre-installed fixed board on the wall.
Control Box Connection

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Operation Instructions
Please check whether the water heater is filled with water and whether the power plug is plugged in place
before using the water heater.
1 On/Off
Press the "On/Off" button to enter the "On" status as shown in Fig. 1. Press the button again to enter
the "Off" mode.
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System Default Setting: The default temperature setting is 70 C.
2 Temperature Setting
In the working status of the controller, press “” or “” button, the “Temperature Setting” and the
current set temperature will flash in the temperature window. The set temperature increases/decreases
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by 1 C for each time the “” or “” button is pressed. If the button is pressed without pause, the
setting temperature increases/decreases continuously. If the button is released, it will exit the
temperature setting mode after the flashing stops.
In the working mode of the controller, the screen will display the actual water temperature and setting
temperature first (as shown in Fig. 2). Ten seconds later, it will display the characters “Clock” and the
time (as shown above in Fig. 3) both displays will alternate after 10 seconds.
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Caution: Hot water exceeding 50 C can produce scalding injury. Particular care should be taken when
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the temperature is set over 50 C for the safety of your family, especially children.
3 Clock Setting and View
(1) Clock Setting: First press the “Clock Setting” button for 3 seconds to enter clock setting mode
(as shown in Fig. 4). The hour field will flash first. Set the numbers by pressing “” or “”
button. The set hour will increase/decrease by 1 for each time the “” or ““ button is
pressed. During flashing period, press the clock button again to enter clock “Minute” setting
mode, the minutes display will flash. Set the numbers through “” or “” button. If the
button is pressed without pause, the numbers will increase/decrease continuously. The hour
number setting range is between 0-23 and the minute number setting range is between 0-59.
ACTUAL TEMPERATURE TEMPERATURE SETTING ACTUAL
CLOCK OFF-PEAK
TIMING ON TIMING OFF
1000W
1500W
2500W
TEMPERATURE TEMPERATURE SETTING
CLOCK
SETTING
Fig. 1
Fig. 3
Fig. 2
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(2) Clock View: You can know the time by pressing the “Clock Setting” button in power on mode. The
time will display for ten seconds, then return to temperature display mode.
4 Timing Option
When in the “Off-peak” or “Timing” mode, you can enter the “Time Setting” mode by keeping pressed
the “Off-peak” or “Timing” button for 3 seconds. You cannot set the time in the “Off-peak” or
“Timing” mode.
Timing On mode
In the “Timing” mode, press and hold the ”Off-peak” or “Timing” key for 3 seconds. The display
“Timing On” flashes and the “Timing On” time is displayed. The “Timing On” hour flashes first; press
the ”” and “” key to set the hour field in “Timing On“. The hour field can be set to any value from
0 to 23. Press “Off-peak” or “Timing“ button again to set the minutes field. The display will flash
“Timing Minute”. The minutes field can be set circularly to any value from 0 to 59 (as shown in Fig. 5).
Timing Off mode
Press the “Off-peak” or “Timing” button again to exit the “Timing On” mode and “Timing Off“ flashes
indicating you are now in the “Timing Off“ mode and the “Timing Off” values will flash.
The method for setting “Timing Off” is same as for “Timing On” detailed above (as shown in Fig. 6).
ACTUAL
OFF-PEAK
TEMPERATURE TEMPERATURE SETTING ACTUAL
TIMING ON
TEMPERATURE TEMPERATURE SETTING
CLOCK
ACTUAL
TIMING OFF
TEMPERATURE TEMPERATURE SETTING
CLOCK
5 Timing Setting View
In “Timing”, “Off-peak” or “Timing” plus “Off-peak” modes, by pressing the “Off-peak” or “Timing”
button, you will be able to break the alternated display of temperature and time and enter the “Off-
peak” or “Timing Setting” view.
(1) If the clock is not in the “Off-peak” or “Timing Setting” mode, it displays “Timing On” and the
value for “Timing On” is displayed for several seconds.
(2) If the clock is in the “Off-peak” or “Timing Setting” mode, it displays “Timing Off” and the value
for “Timing Off” is displayed for several seconds.
Fig. 4
Fig. 6
Fig. 5
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6 Power Option
Press the “Power Option” button to choose input mode alternately between “Low Power” (1000 W),
“Half Volume Quickly” (1500 W) and “Full volume Quickly” (2500 W) in the normal working status. The
system default is “Low Power”.
7 Instant Heating
At start-up without heating, heating begins and LED heating icon turns on after “Instant Heating”
button is pressed. The heating continues until the set temperature is reached. You can exit the heating
mode by pressing the “Instant Heating” button again during the instant heating mode.
8 Electric Leakage Detection
The Ground Fault Circuit Interrupter (GFCI) cuts off the power completely when an unsafe electrical
condition is detected, during which the “Reset On” button jumps up, the power indicator lights turn
off or turn from green to orange. If the normal condition cannot be re-attained by pressing the "Reset
On” button, you should call the Customer Care Centre immediately.
Caution: Users should regularly test whether the functions of the GFCI are normal. The method of
testing is as follows: When the power indicator light turns on (green), press down the “Test
Off” button, the power indicator will be turned off, then press “Reset On” button again. The
power indicator (green) will be turned on, which indicates that the GFCI is in good condition,
otherwise there is a failure in the GFCI and service should be called for immediately.
9 Safety Valve Function Detection
During the course of heating, it is normal for the outlet of the safety valve to drip. Under normal
conditions, the handle of the safety valve should be opened regularly (move the handle of the pressure
relief valve) to eliminate calcium carbonate. If the water is flowing, then the safety valve is operating
normally. Otherwise, please call the Customer Care Centre.
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• When it is necessary to drain the water heater, first close the inlet valve, move the handle of the
pressure relief safety valve and release the nut connected with the water output adapter of the
container. This will ensure that the water flows out from the flow guild pipe.
• Clean water tank periodically to get rid of scale.
Step by step guide: 1) Shut off power input.
2) Remove pressure-relief safety valve and water inlet.
3) Connect water outlet to tap water to introduce the water; connect original water
inlet to floor drain with a pipe to discharge the water.
4) Fully open the water inlet valve to wash the tank with flowing water until the
water flowing out of the tank becomes clean.
5) Re-connect water inlet and outlet according to diagram (refer to diagram for
Wiring Diagram of CEWHR, Cylinder Electric Wall Hung Water Heater with Remote
Control) and start to use after leakage test is passed.
Caution: Water discharged could be very hot, please take care so as not to get scalded.
Maintenance
Declaration: Only qualified service technicians are allowed to repair and maintain this water heater.
Incorrect operations may cause serious injuries or property loss.
Warning: Electric shock
This appliance must be unplugged before being opened up or repaired.
Attention: Before calling for repair service, please use the Troubleshooting List on the next page as a
guide to correct apparent problems.
Repair and Maintenance
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Troubleshooting
Heater is not plugged in
No power supply in power
socket on the wall
Control circuit or internal
wiring error
High limit trips
Power board damaged
Heating element(s)
breakdown or internal
wiring error
Connection not sealed
Leakage in tank or
other parts
Plug in the heater
Check the power socket
Call Customer Care Center
Call Customer Care Center
Call Customer Care Center
Call Customer Care Center
Re-connect piping, be sure to use
tape thread sealant
Shut off power immediately and
Call Customer Care Center
No display
No hot water
No display
Water temperature is
too high
Display, no hot water
Piping connection
leakages
Leakage
Temperature sensor
circuit short or open
Call Customer Care Center
Display error code “E1”
Extra high temperature
Low voltage protection
(Less than 176 V)
The water heater itself or
outside grounding
system malfunction
Call Customer Care Center
Call Customer Care Center
Shut off the power and
Call Customer Care Center
Display error code “E3”
Display error code “E5”
“Rest On” button on
the plug jumps up and
can't be restored
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Problem Possible Cause(s) Solution

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• Ensure the power of the water heater matches the electricity meter capacity and the power wiring
before the installation of the water heater.
• The water heater must be grounded securely; it is not advisable to connect the ground line to the
neutral line and the tap water pipe.
• In case, the safety valve for temperature and pressure has been mounted by manufacturer, do not
change the installation without permission or get its outlet obstructed.
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• Hot water above 50 C may result in scalding injury. Be sure to feel the temperature of the water with
your hand and adjust the temperature accordingly by introducing the cold water, before using the hot
water.
Caution
Wiring Diagram of CEWHR, Cylinder Electric Wall Hung Water Heater with Remote Control
Wiring Diagram
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Red
Power board
L1
L2
N COM
Brown
White
1000W
1500W
L N PE
Black
Blue
Eight-core cable
Sensor
Green & Yellow
High Limit

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Jaquar Mercantile
Customer Care Mailing Address
306, Udyog Vihar Phase - 2, Gurgaon, Haryana - 122016
Customer Care Network
Central New Delhi 011.3300.4455
Jaipur 0141.3300.4455
Lucknow 0522.3300.4455
Bhopal 0755.3300.4455
Raipur 0771.3300.4455
Patna 0612.321.5435
North Ludhiana 0161.3300.4455
Chandigarh 0172.3300.4455
Jammu 0191.247.0396
Dehradun 0135.329.6820
East Kolkata 033.3300.4455
Siliguri 0353.3300.4455
Ranchi 0651.3300.4455
Bhubaneswar 0674.3300.4455
Guwahati 0361.246.3051
West Mumbai 022.3300.4455
Pune 020.3300.4455
Ahmedabad 076.3300.4455
Surat 0261.3300.4455
Goa 0832.322.4483
Nagpur 0712.325.4602
South Bangalore 080.3300.4455
Chennai 044.3300.4455
Hyderabad 040.3300.4455
Cochin 0484.3300.4455
Zone Branch Customer Care Number
e-mail: [e-mail]
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.

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A. O. Smith India Water Heating Private Limited,
Plot No. 300, Phase - 2, KIADB Industrial Area, Harohalli, Kanakapura Taluk, Ramanagara Dist. - 562 112, Karnataka, India
Website: www.aosmithindia.com
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