Operation Manual

4
 Incaseofheater’sdefectimmediatelycutoffwaterandpowersupply.
 Allserviceandmaintenanceworkscanbecompletedonlywithpowerswitchedoff
 Onlyoriginalsparepartscanbeusedforrepair
 Casingshouldneverbedisassembledwhilepowerison
 Avoidelectronicsystemtobesplashedwithwater
 Incaseofheater’sdefectorimproperworkswitchoffpowerandshutoffwatersupply
usingstopping–suppressingvalve.
 Watertapdraintubesprinkler(strainer)shouldbecleanedregularly.
 Powersupplysystemshouldbeperiodicallycheckedup(voltagedrops),particularly
electricalconnections.
 Waterowshouldbesuppressedinsuchwaytoavoidexcessivetemperature(take
careofchildren).

 Theheatercanonlybeusedpreviouslyconnectedtoearthingsystem.
 Wiringsystemshouldbeequippedwithdifferentialswitch.
 Minimumwirecrosssectionandfusevalueshouldbeselectedaccordingtotable3.
 Beforeheater’sinstallationcheckstateofwiringsystemandparticularlyterminal.
 Afterheater’sconnectiontowiringsystemmeasurevoltagedropunderload.
Fig.2