Daikin EHVZ04S18CB Installation Manual

Also see for Altherma EHVZ04S18CB: Installation manual Reference guide Installer's reference guide User reference guide

Daikin EHVZ04S18CB Installation Manual Manual pdf 8 page image

4 InstallationInstallation manual8EHVZ04~16S18CB3VDaikin Altherma – Low temperature split4P401672-1D – 2017.04If the temperature is higher than 30°C and the humidity is higherthan RH 80%, the thickness of the insulation materials should be atleast 20 mm to prevent condensation on the surface of theinsulation.4.5 Connecting the electrical wiringDANGER: RISK OF ELECTROCUTIONWARNINGALWAYS use multicore cable for power supply cables.4.5.1 About electrical complianceSee "4.5.4 To connect the backup heater power supply" onpage 9.4.5.2 To connect the electrical wiring on theindoor unit1 To open the indoor unit, see "4.1.1 To open the indoor unit" onpage 5 and "4.1.2 To open the switch box cover of the indoorunit" on page 6.2 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 type and installed options)aLow voltage▪ Preferential power supply contact▪ User interface▪ Power consumption digital inputs (field supply)▪ Outdoor ambient temperature sensor (option)▪ Indoor ambient temperature sensor (option)▪ Electrical meters (field supply)▪ Safety thermostat for the main zone (field supply)▪ Safety thermostat for the additional zone (field supply)bHigh voltage power supply▪ 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 control signal▪ Heat pump convector (option)▪ Room thermostat (option)▪ Shut-off valve (field supply)▪ Domestic hot water pump (field supply)▪ Alarm output▪ Changeover to external heat source control▪ Space heating operation controlCAUTIONDo NOT push or place redundant cable length in the unit.4.5.3 To connect the main power supply1 Connect the main power supply.In case of normal kWh rate power supply