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
*
Black
* 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
0
Reheating time for 50 C rise (in mins) 67 96 144 192
o
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
1
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.
1
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

3
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

4
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
5
• 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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6
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