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Bajaj Majesty
'Zero Worry' Storage Water Heater
Dear Customer,
Congratulations! You are now the proud owner of a Bajaj Majesty Storage Water Heater, the most durable, dependable
and safe product in the market today. And we mean what we say.
Why? Because we at Bajaj understand your concern, your need for reassurance. So we designed our Majesty Storage
Water Heater with one single minded objective - Safety. Total protection for you and your family, for years to come.
This manual will answer all your questions and remove your doubts. We have provided a detailed description of our
Majesty Storage Water Heater and clear instructions for Installation and operation. Read this manual carefully, follow
the instructions and we guarantee you will never have to worry about your Majesty Storage Water Heater again.
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KNOW YOUR BAJAJ MAJESTY STORAGE WATER HEATER
How does it function?
1. Every Bajaj Majesty Storage Water heater
Unit is made of
a. an outer body, inner tank, heating
element
b. safety devices like Safety valve,
Thermostat, Thermal cut-out, Fusible plugs
and
c. Thermal insulation to retain heat.
2. When the tank is full (this becomes clear
when water starts flowing through the
outlet), close the outlet and switch ON the
power supply.
3. The heating element heats up the water. At
a pre-fixed temperature. The thermostat
automatically switches OFF the power supply
to the unit which is indicated by the
switching OFF of green lamp.
4. You can now take the water out through the
outlet. Because of the design of the heater &
displacement principle, fresh cold water
keeps entering through the inlet.
5. As temperature of water inside the tank
drops, the Thermostat again switches ON
the power supply to the heater. When this
happens, water starts heating up again. This
process continues till you switch OFF the
main power supply to the heater after
usage.
6. Since it takes a longer time for the water to heat up in storage water heater, it is advisable to switch ON the
power supply to the unit well in advance of the actual usage.
7. During normal functioning, red lamp does not glow. In case it glows, call the nearest Bajaj Sales and Service
Centre.
How is it made? (Fig.1)
OUTER CASING: This is made of superior quality, rust proof and shock proof ABS Engineering Plastic. A unique two
piece design enables easy servicing of the unit while it is in mounted position.
INNER TANK: This is made from 99.85% pure electrolytic extra thick copper, with reinforced welding at joints. It is
suitable for both hard and soft water. Tested as per BIS specifications it can withstand pressure up to 80 P.S.I. (6.00
Kg./cm
2
).
BAJAJ MAJESTY STORAGE WATER HEATER IS WITH INNER TANK MADE OF PURE COPPER. IT COMES WITH A 5 YEAR
GUARANTEE.
HEATING ELEMENT: A 53" long, dual, direct immersion type mineral filled element of 2 K.W rating is used which is
housed in a copper tube.
Highly efficient, it can be removed and serviced/replaced easily while the heater unit is in installed position. What's
more it is 'Bajaj' & 'ISI' marked, with a 2 year guarantee.
Neon Lamps: These are red and green neon-gas filled lamps which indicate the functioning of Thermostat and
thermal cut-out. They are mounted on the heater unit itself. The operation of these lamps is explained in the
'Operating Instructions'.
Insulation: Bajaj Majesty Water Heater is designed for high degree of efficiency. Premolded, Polyurethene foam
(PUF) is fitted between the outer casing and the inner tank for a high degree of insulation i.e. to ensure minimum heat
loss. Standing heat loss is 40% lower than norms specified by The Bureau of Indian Standards (BIS). This insulation
keeps the water hot for a longer period of time and saves electricity.
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HARDWARE: All Bajaj Storage water heaters are provided with rust proof hardware (screws, nuts, washers and bolts)
for the Inner tank assembly.
SAFETY SYSTEMS: Bajaj Majesty Storage water heaters are provided with the following safety devices. These devices
control temperature and pressure and hence ensure complete and smooth operation.
SAFETY VALVE: When the pressure inside the tank or at the inlet becomes more than 3 Kg/cm
2
this device operates.
It opens and starts dripping.
THERMOSTAT: This is a stem type automatic temperature control device. It is set to operate at 60
o
C. It is 'Bajaj' and
'ISI' marked.
THERMAL CUT-OUT: This is a "Bajaj" marked bimetallic, stem-type, quick action temperature control device that
operates at 90
o
C. It is fitted with a push-button that can be operated by hand. In case the Thermostat fails or the
heater is operated without water the red lamp glows ON indicating that this device has operated. In such a case
contact the nearest Bajaj sales or service centre.
THIS DEVICE ALSO HELPS IN PREVENTING DRY HEATING OF THE ELEMENT IN CASE THE UNIT IS OPERATED
WITHOUT WATER.
FUSIBLE PLUG: Bajaj Majesty Storage Water Heater is provided with fusible plug, at the bottom. In the rare case
that the Thermostat & Thermal cut-out fails, this plug melts, releasing hot water and steam through the drain pipe.
Thus it helps in avoiding untoward accidents.
VENT PIPE: Bajaj Majesty Storage Water Heater has a vent pipe for extra protection. The vent pipe can be extended
up to the water tank situated above and left open into the atmosphere.
NON-RETURN DEVICE: There is a siphon hole on the inlet pipe inside the inner tank of Bajaj Majesty Storage Water
Heater. When pressure inside the tank becomes low, this siphon hole prevents back flow of water. It acts as a non-
return device up to a certain level of low pressure. Thus it prevents collapse of the tank due to vacuum formation.
BENEFITS:
1. A two-year guarantee.
2. Attractive colour to suit your bathroom decor.
3. Suitable for single point usage.
4. Rust proof Stainless Steel hardware facilitates easy servicing.
5. The largest dealer and After Sales Service Network available in the country.
6. Specially designed for easy servicing.
THE HOW AND WHERE OF INSTALLATION AND OPERATION
A. Fix the Water heater in a perfectly straight position at a suitable height from the floor with suitable bolt size
(1/2" or 5/16" diameter).
B. There should be enough space around the heater for easy installation and servicing.
C. Make sure that supporting walls or fixture are strong enough to carry the weight of the heater when it is
completely filled with water.
Bajaj Majesty Storage Water Heater
Technical Specification Table
Overall dimensions (Ref. fig. 2)
Model Capacity
(in litres)
Element
Rating
Time required to
raise the Temp.
by 35 C(in minutes)
Weight of
water Heater
(in Kgs)*
Pipe
connection
(in BSP)
A B C
D
E
F G
H
SEE
Majesty
ISI 15L
15 2.0 20 23.00 1/2" 312
225
551
332
10
188
448
326
SEE
Majesty
ISI 25L
25 2.0 30 34.00 1/2" 320
365
720
365
10
214
618
353
* When completely filled with water.
Due to continuous efforts for improvement, specifications are subject to changes.
A typical installation is shown in Fig. 2. Front and Sideview.
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D. There should be a minimum space of 50 cm between the top of the heater and the roof. This is to make sure
that the heater can be removed and taken out when necessary.
E. The heater should be saved from being damaged by splashing of water. Therefore, keep a minimum space of
about 1.8 m. between the floor and bottom of the heater.
F. During installation and plumbing (preferably by flexible metal pipes) remove the coupler cover by pulling it
out towards the front of the water heater. Connect the plumbing by bending the flexible pipes or elbow as
shown in fig. 2. sideview. Slide the coupler cover to complete the plumbing.
WATER SUPPLY.
A. You can connect the heater directly to municipal water supply or vent pipe the water tank on top of your
house.
B. If the height is more, use a Pressure reducing valve at the inlet.
C. The water pressure should also not be too low. The minimum distance between the heater and the water
supply tank should be at least 2 metres.
D. YOU SHOULD INSTALL THE VENT PIPE FROM THE TOP OF THE HEATER ABOVE THE LEVEL OF THE WATER
SUPPLY TANK. THERE, IT SHOULD BE LEFT OPEN TO THE ATMOSPHERE. THIS IS THE SAFEST METHOD OF
INSTALLATION.
WATER CONNECTIONS:
Do not connect the cold and hot water pipe lines directly to the heater.
Instead, connect them using flexible tubes of appropriate material. Never
use plastic tube especially at the outlet because it cannot withstand the heat.
In case of direct pipe connections, tightening of couplings using a wrench
can damage the heater unit. USE A CONTROL VALVE AT THE INLET. MAKE
SURE THAT IT IS ALWAYS KEPT OPEN.
WIRING
All the electrical connections inside the Heater are done at the factory. The
water heater is provided with a supply cord and 3 pin plug, which should be
connected to main power supply. Connect the red wire to phase, black to
neutral and green to earthing. Make sure that the connections in the plug
and socket are right, and proper earthing is provided to the unit.
1. Thermal cut-out
2. Heating Element
3. Thermostat
4. Green Neon lamp
5. Red Neon Lamp
Bajaj Majesty Storage Water Heater Performance Parameters as Per BIS
Model Capacity
(in litres)
Element Rating
(in Kw)
Min. Hot water Output
(at
0
C)
Reheating Time
(in minutes)
Mixing Factor (%)
SEE Majesty
ISI 15L
15 2.0 50
o
20 30
SEE Majesty
ISI 25L
25 2.0 50
o
31 30
THE OPERATION PROCESS
Operation Instructions:
Normally, Water heaters are connected to the water tank situated on top of the house. Since the heater unit is
designed to operate at a given working pressure, the exact installations are different. To help you install the unit
correctly, various alternatives are shown in Fig. 4 and 5.
1. Do not switch ON before filling the heater unit with water.
2. Leave the hot water outlet open and open the inlet valve to allow the heater unit to be filled with water. After
it is full the water will start flowing out from the outlet.
3. Now close the outlet cover. ALWAYS KEEP THE INLET VALVE OPEN.
4. Switch ON the power supply. Green neon lamp will glow ON to indicate that water is getting heated.
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5. When the water has reached the set temperature green light will go OFF. This indicates that the thermostat
has operated and has switched OFF the power supply to the unit. You should withdraw the water only after
the green light has switched OFF. Hot water
at desired temperature is now available for
use.
6. It takes time for the water to get heated.
Therefore, switch ON the unit well in advance
before use. The Heater unit can always be
kept ON. Insulation keeps the water hot and
thermostat makes sure that the electric
supply is alternately switched ON and OFF.
7. Every once in a while, check the working of
the neon lamps to make sure that the
thermostat and thermal cut-out are working
properly.
8. The red neon lamp glows ON when i) the
thermostat falls OR ii) water
temperature reaches boiling point OR iii)
the heater unit is operating without
water. This indicates that the thermal
cut-out has operated thereby switching
OFF the main power supply to the unit.
In such a case contact the nearest Bajaj
sales or service centre.
9. The power supply to the Heater can be kept
ON continuously. But it is advisable to switch
it OFF when the unit is not in use for a long
time to save on electricity.
INSTALLATION CHART (FIG. 4)
i. Inlet water pressure is less than 30 P.S.I. OR
ii. Height of water tank is less than 70 ft. from
the water heater OR
iii. Water tank is situated less than 5 floors from
the water heater. In such a case if possible
remove the vent nut and extend the vent
pipe up to the top level of overhead water
supply tank.
INSTALLATION CHART (Fig. 5)
i. Inlet water pressure is more than 30 P.S.I.
OR
ii. Height of water-tank is more than 70 ft. from
the water heater OR
iii. Water tank is situated more than 5 floors
from the water heater. In such a case if
possible remove the vent nut and extend the
vent pipe up to the top level of overhead
water supply tank.
Pre and Post operative care
Precautions:
1. Read Installation and Operating instructions
carefully.
2. Get a qualified plumber/electrician to install
the unit.
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3. THE INLET VALVE SHOULD ALWAYS BE KEPT OPEN.
4. To minimise scaling of heating element, which happens more in areas with hard water, simply lower the
setting of the thermostat a little. Drain the water periodically. However this should be done through a
qualified technician only.
5. Scaling of the heating element can be removed by scrapping.
6. Always get the unit serviced once in two years.
7. Use genuine spare parts when replacement is necessary.
8. Switch OFF the power supply to the unit and drain out the water when the heater unit is not in use. This
prevents scaling of element and increases its life.
9. In case the red lamp glows ON do not operate the unit by resetting the thermal cut-out. Please contact the
nearest Bajaj sales and service station to check if there is a fault.
10. Always drain out the water when i) the unit has to be serviced OR ii) when the unit is not in use for extended
periods. Use the drain pipe provided separately to drain out the water.
11. In case of any problem with the heater contact the nearest Bajaj sales or service centre.
12. Be very sure that you do not increase the setting of the thermostat more than the pre-fixed temperature.
DONT'S
1. Safety valve, thermostat and thermal cut-out are used to control temperature and pressure. These are very
sensitive and pre-set devices. Do not tamper with them or try to change their settings. This could prove
hazardous and should be strictly avoided.
2. Do not switch ON the heater till it is completely filled with water.
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