VESTEL WATER HEATER SERVICE MANUAL
VESTEL BEYAZ EŞYA A.Ş. (Air Conditioning Quality Assurance Department)
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Thermostat cools and heating coil is re-activated. Cold water is heated until it reaches the set temperature value in
the thermostat. Water in the tank stays hot and ready for use until more water is drawn.
LAMINATION OF HOT AND COLD WATER LAYERS
Operation principle of a water heater is to create layers that to not mix in different water temperatures.
This principle is extremely simple to explain: water expands when heated and water density is reduced compared to
cold water. In this case, density reduces when water is heated and accumulate at the top of the tank. Water at lower
temperature creates a layer in the lower part.
When hot water is drawn from the top of the tank, this water is replaced by the cold water at the bottom. In this way,
the density balance is provided.
ELECTRICAL WATER HEATER INSTALLATIONS
Service life of a water heater largely depends on the installation to be made correctly. We recommend that installation
must be performed by a professional. The plumber, first of all, must check if water supply, power supply and waste
water connections are in conformity with manufacturer’s recommendations.
Water heater installation and first operation must be performed in accordance with the instructions in the user
manual.
PLACEMENT AND INSTALLATION OF THE UNIT
Attention must be paid to the following issues in the wall-mounting of the stove.
Water heater must be in a position to align with the water connection in the wall.
Dowels and hanger screws should be strong enough. An 80 liter water heater can exceed 100 kg including its
own weight. As this weight will be loaded completely on hanger screws, screws must be strong enough to stay
in the wall.
After hanging, it is ensured that the device is parallel to the wall using the adjustment plastic section at the
bottom of the stove.
There must be no damage on the device that will adversely affect the electrical isolation.
Power cable of the device must be connected to the fuse supplied with the device.
Safety valve is must be mounted to the cold water inlet pipe with blue ring.
Water connection hose sleeves have flexible gaskets. Sleeves must be sufficiently tightened to prevent water
leakage. If extremely tightened, sleeves and gaskets may be damaged. If hose length is not sufficient, different
sizes of hoses recommended by Vestel Service Center must be used.
Water heater must be installed where water inside will not freeze.
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WATER HEATER MAINTENANCE
CLEANING SCALE ON HEATING COIL
Scale (scaling) can lead to operating problems mentioned below:
