Ariston ABS VLS EVO WI-FI 50 3700455 [22/129] Maintenance regulations for competent person

Ariston ABS VLS EVO WI-FI 50 3700455 [22/129] Maintenance regulations for competent person
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EN The manufacturer will not be held responsible for such damage Connect the inlet of the pressure safety device to the cold water system using a flexible pipe using a cut off valve if necessary D fig 2 In addition a water discharge tube on the outlet C fig 2 is necessary If the emptying tap is opened When tightening the pressure safety device do not over tighten and do not tamper with It It Is normal for wa ter to trickle from the tap during the heating phase for this reason it is necessary to connect the drain which must always be left exposed to the atmosphere with a drainage pipe that is installed sloping downwards in a place with no ice If the network pressure is closed to the calibrated valve pressure it will be necessary to apply a pressure reducer far away from the appliance To avoid any possible damage to the mixer units taps or shower it is necessary to drain any impurities from the pipes The appliance must not be supplied with water of hardness less than 1 2 F nor with especially hard water greater than 25 F we recommend Installing a water softener properly calibrated and controlled do not allow the residual hard ness to fall below 15 F Before using the appliance we recommend filling its tank with water and draining it completely so as to remove any residual Electrical connection Before performing external switch any operations disconnect the appliance from the electricity mains using the Before installing the appliance it is recommended to thoroughly check the electrical system to verify compli ance with established regulations the manufacturer is not liable for damage caused by lack of grounding or anomalous power supply Check that the system Is suitable for the maximum power absorbed by the water heater please refer to the data plate and that the cross section of the electrical connection cables is suitable and complies with current laws The use of multiplugs extensions or adaptors is strictly prohibited It is strictly forbidden to use the piping from the plumbing heating and gas systems for the appliance earth ing connection If the appliance is supplied with a power supply cable should the latter need replacing use a cable featur ing the same characteristics type H05VV F 3x1 5 mm2 8 5 mm in diameter The power cord H05WF 3x1 5 mm2 diameter 8 5 mm must be positioned in the special seat in the back of the appliance until it reaches the terminal M Fig 7 8 then lock the Individual wires tightening the appropriate screws Secure the power cord with the included cable clamp To disconnect the unit from the electrical supply use a bipolar switch conforming to CEI EN standards con tact opening at least 3 mm better if equipped with fuses The appliance must be earthed and the earth cable which must be yellow green and longer than that of the phases Is fixed to the terminal marked by the symbol G Fig 7 8 Before starting up the appliance check that the power rating matches that given on the appliance nameplate If the appliance is not supplied with a power supply cable choose one of the following installation modes connection to mains with a rigid pipe if the appliance has no cable clamp use a cable with a minimum 3x1 5 mm2 section with a flexible cable type H05W F 3x1 5mm2 8 5 mm in diameter if the appliance is supplied with a cable clamp Startup and commissioning Before powering up the appliance fill the heater with mains water To do so open the mains cock and the hot water tap until all the air has been vented from the boiler Check for water leaks from the flanges from the by pass pipe tighten down the bolts not too much if necessary C Fig 5 and or the rings W Fig 7 8 Power the appliance by actuating the switch If you carry out horizontal installation you need to configure the correct display of the display by pressing the mode button and the eco button simultaneously for 5 seconds MAINTENANCE REGULATIONS for competent person l CAUTION Observe all general warnings and safety standards listed at the beginnlng of this text In full all such Instructions are obligatory O All maintenance operations and service visits should have the skills required by the applicable norms In force be performed by a competent person Before calling your Technical Servicing Centre check that the fault is not due to lack of water or power failure Emptying the appliance The appliance must be emptied if It Is to be left unused in premises subject to frost 22 who

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