230V/50Hz
PCB
Signal line
Sensor
Control circuit board
Temperature sensor
Thermal cut-off
Heating element
ELCB
Plug
PCB
Digital screen
Operation Of Water Heater :
A. Using the heater for the first time :
1. Do not switch “ON” before filling the heater with water.
2. Leave the hot water tap open. Now fill the heater by opening the control valve at the inlet.
3. When the heater is full, water will start flowing through the hot water tap. Close the hot water tap.
4. Now the heater will always have water inside. Water drawn will be replaced by water from the over head tank.
5. Always keep the inlet control valve open.
6. Now switch “ON” the power supply to the heater.
B. Using the heater regularly :
1. Always keep the inlet valve open so that water drawn from the hot water tap is automatically replaced from the mains.
2. When the water reaches the required temperature the thermostat will cut-off the power supply automatically.
3. The thermostat setting can be changed by the user to suit outlet water temperature. (DO NOT TAMPER THE SETTING
FREQUENTLY)
4. Lowering the setting of the thermostat will give a lower hot water temperature; increasing the setting will give a higher hot
water temperature.
5. Initially it may take a long time for the water to get hot, it is recommended to switch “ON” the water heater at least an hour
before you want to use it.
6. If you require hot water early in the morning, switch “ON” previous night itself, thermostat would cut-off the power
automatically, when the water reaches the set temperature.
7. The heater can also be kept “ON” always, if required since the heater is completely insulated, the water will remain hot.
The thermostat will cut-in and cut-off automatically to keep the water at constant temperature. In this way you can always
get hot water.
Maintenance & Cleaning :
1. To benefit from the highest standards of service and to ensure your guarantee remains in focus, please always contact
HAVELLS approved dealer or HAVELLS Authorised Franchise.
2. Always keep the inlet control valve open.
3. Never switch “ON” the water heater without water in the heater. It will damage the heating element.
4. Check condition of metal flexible pipe at-least once in a year. If found damaged replace with new pipes.
5. Check the condition of power & supply cord for “No Damages”. Replace it by an authentic supply cord in case of damage.
Internal Wiring Diagram
Bello Digital
Electrical circuit diagram