User manual PANASONIC HR-S500

[. . . ] : 241525-0 DE - GB - F Dear customer, You have selected our water heater for heating your water. Thank you for the confidence you have shown in us. You have purchased an attractive unit which was constructed according to the state of the art and which meets all the appropriate regulations. Our continuously developed and improved enameling as well as constant quality inspection during production give our water heaters technical advantages that will serve you for years to come. [. . . ] Regularly check for proper function of the safety valve. When lifting or turning the safety valve test knob to the “Test” position, the water must flow unhindered from the safety valve body into the funnel. Caution: The cold water inlet and parts of the water heater fitting can get hot during this process. If the tank is not heated up or hot water removed, no water is allowed to drip from the safety valve. If this is the case, either the water line pressure is greater than the permitted value (in Switzerland more than 6 bar) or the safety valve is defective. If the water line pressure is greater than permitted (6 bar in Switzerland), a pressure reducing valve must be used. B) If the service water has a high lime content, removal of the scale formed in the interior boiler as well as of the free lime particles must be performed by a technician every one to two operating years. Cleaning is done through the flange opening – remove heater flange, clean tank, and use a new gasket when reassembling the flange. The screws must be tightened in a cross pattern with a tightening torque of 20 Nm - 25 Nm. The special enamelled inner container of the water heater must never come into contact with scale solvent. Do not work with the decalcification pump!Then flush the unit thoroughly and perform the heat-up cycle as for initial startup of the unit. C) To make a proper warranty claim as provided for by AE-AG, the installed sacrificial anode must have been inspected and this inspection documented by a technician at intervals of no more than 2 operating years. During maintenance works, it is advisable to open the cleaning and service flange in order to check the tank for any possible washing-in of foreign objects and contaminations, and to remove these if necessary. The external current anode has a virtually unlimited life expectancy. Its function must be regularly checked by noting the inspection lamp. This indicates two conditions: green: System OK. flashing red: Fault: Contact customer service!The prerequisite for proper function is that the container is filled with water. Conductivity of at least 150 µs is required to ensure that the external current anode functions properly. D) The area in which the unit is operated must be kept from freezing. The unit must be installed in a location where it can be easily accessed for maintenance, repair and possible replacement. [. . . ] Transport damage shall be investigated and possibly accepted only if it is reported to AE AG in writing on the next following workday after delivery at the latest. Claims over and above the warranty, if legally permissible, in particular claims with respect to compensation of damages and consequential damages, shall be excluded. Prorated labour time for repairs as well as the costs of restoring the original condition of the unit must be paid in full by the buyer. In accordance with this warranty declaration, the warranty shall apply only to repair or replacement of the unit. [. . . ]