Daikin ERLQ004CA Installer's Reference Manual

Contents

7 InstallationInstaller reference guide30ERLQ004~008CA + EHBH/X04+08CBDaikin Altherma – Low temperature split4P384972-1B – 2017.04Backup heatertypePower supply Required number ofconductors*3V 1× 230 V 2+GND*9W 1× 230 V 2+GND + 2 bridges3× 230 V 3+GND + 1 bridge3× 400 V 4+GND7 Installation7.1 Overview: InstallationThis chapter describes what you have to do and know on-site toinstall the system.Typical workflowInstallation typically consists of the following stages:1 Mounting the outdoor unit.2 Mounting the indoor unit.3 Connecting the refrigerant piping.4 Checking the refrigerant piping.5 Charging refrigerant.6 Connecting the water piping.7 Connecting the electrical wiring.8 Finishing the outdoor installation.9 Finishing the indoor installation.INFORMATIONDepending on the units and/or the installation conditions, itmight be necessary to connect electrical wiring before youcan charge refrigerant.7.2 Opening the units7.2.1 About opening the unitsAt certain times, you have to open the unit. Example:▪ When connecting the refrigerant piping▪ When connecting the electrical wiring▪ When maintaining or servicing the unitDANGER: RISK OF ELECTROCUTIONDo NOT leave the unit unattended when the service coveris removed.7.2.2 To open the outdoor unitDANGER: RISK OF ELECTROCUTIONDANGER: RISK OF BURNING1×1227.2.3 To open the indoor unit1 Loosen and remove the 2 screws that fix the front panel.2×2 Tilt the front panel towards you and remove the front panel.7.2.4 To open the switch box cover of theindoor unit4×7.3 Mounting the outdoor unit7.3.1 About mounting the outdoor unitWhenYou have to mount the outdoor and indoor unit before you canconnect the refrigerant and water piping.Typical workflowMounting the outdoor unit typically consists of the following stages:1 Providing the installation structure.2 Installing the outdoor unit.3 Providing drainage.4 Protecting the unit against snow and wind by installing a snowcover and baffle plates. See "Preparing installation site" in"6 Preparation" on page 23.7.3.2 Precautions when mounting the outdoorunitINFORMATIONAlso read the precautions and requirements in thefollowing chapters:▪ General safety precautions▪ Preparation