Daikin Altherma EHVZ04S18CB Installer's Reference Manual

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Daikin Altherma EHVZ04S18CB Installer's Reference Manual Manual pdf 35 page image

7 InstallationInstaller reference guide35ERLQ004~008CA + EHVZ04+08S18CBDaikin Altherma – Low temperature split4P401676-1D – 2018.073×1 2 36 Install the switch box cover.7.9.6 To connect the electrical wiring on theindoor unit1 To open the indoor unit, see "7.2.3 To open the indoor unit" onpage 23 and "7.2.4 To open the switch box cover of the indoorunit" on page 23.2 Wiring should enter the unit from the top:a b+c3 Routing of the wiring inside the unit should be as follows:ab+c4 Fix the cable with cable ties to the cable tie mountings toensure strain relief and to make sure that it does NOT come incontact with the piping and sharp edges.INFORMATIONTo access the domestic hot water temperature sensor, theswitch box can be tilted. The switch box should NOT beremoved from the unit.Routing Possible cables (depending on unit typeand installed options)aLow voltage▪ Preferential power supply contact▪ User interface▪ Power consumption digital inputs (fieldsupply)▪ Outdoor ambient temperature sensor(option)▪ Indoor ambient temperature sensor(option)▪ Electrical meters (field supply)▪ Safety thermostat for the main zone (fieldsupply)▪ Safety thermostat for the additional zone(field supply)bHigh voltage powersupply▪ Interconnection cable▪ Normal kWh rate power supply▪ Preferential kWh rate power supply▪ Power supply for backup heater▪ Power supply for bottom plate heater(option)cHigh voltage controlsignal▪ Heat pump convector (option)▪ Room thermostat (option)▪ Shut-off valve (field supply)▪ Domestic hot water pump (field supply)▪ Alarm output▪ Changeover to external heat sourcecontrol▪ Space heating operation controlCAUTIONDo NOT push or place redundant cable length in the unit.7.9.7 To connect the main power supply1 Connect the main power supply.In case of normal kWh rate power supplyX2MX5MA5P X1MK3MK2M1 2 31 2 3X6YBX6YAX6Y30 31X1AX6YAX19Aa