hajdu ZV80ErP Installation And Owner's Manual

Contents

ENTurning the button fully counter-clockwise, the temperature controllingdevice gets into zero state. Turning the button clockwise, the desiredtemperature can be set at higher and higher degrees, see Figure 4. Arriving atsign *, the water tank is protected against frost, except for cases of non -operation of the water tank or current failure. Frost protection does not coverthe water pipeline system and water fittings.Under frost protection mode, the temperature of the water is not allowed tofall below appr. 7 ºC, while energy consumption is minimal. Set ting thecontrolling button to the beginning of the duple continuous line, the watertank will provide water of 40º C. This mode, i.e. setting the water tank toprovide water of 40º C represents an energy saving mode as this time, heatloss decreases by 70% as compared to the quantity in the mode of providingwater of 80º C, furthermore, the hot water produced in this mode can be usedwithout cold water mixing. If hot water needs can be fulfilled with water ofthis temperature besides the given storing capacity, it is reasonable tooperate the water tank at the temperature of 40º C. The start of the tripleline means 60 ºC and its end means 80º C. In case of larger water need,operate the hot water tank in a mode of 60 ºC water provision and change thetemperature controller into 80 ºC water provision state only if necessary. Incase of both modes of 40 ºC and 60º C water provision, scale deposition andcorrosion are reduced significantly.8.3. Temperature reducing deviceIn case of failure of the contro ller or in case of normal operation before thetemperature of the water exceeds 110 ºC, it breaks the circuit of the heating.Re-switch of the controlling device can only be performed by a professionaltechnician, after eliminating the cause of the defect.8.4. Compact heaterIn case of failure of the compact heater, its replacement can be performedafter switching off the water tank from the electric system, fully emptying thewater tank, through removal of screws of the closing cover.Its reparation can only be performed by a professional technician.8.5. Active anodeAs a supplementary accessory, the hot water tank is equipped with an activeanode to protect it against corrosion. The life expectancy of the active anode28