Table of ContentsInstallation manual3EHVZ04~16S18CB3VDaikin Altherma – Low temperature split4P401672-1D – 2017.04Table of Contents1 About the documentation 31.1 About this document.................................................................. 32 About the box 32.1 Indoor unit ................................................................................. 32.1.1 To remove the accessories from the indoor unit......... 33 Preparation 43.1 Preparing installation site .......................................................... 43.1.1 Installation site requirements of the indoor unit .......... 43.2 Preparing water piping .............................................................. 43.2.1 To check the water volume and flow rate ................... 43.3 Preparing electrical wiring ......................................................... 53.3.1 Overview of electrical connections for external andinternal actuators ........................................................ 54 Installation 54.1 Opening the units ...................................................................... 54.1.1 To open the indoor unit ............................................... 54.1.2 To open the switch box cover of the indoor unit ......... 64.2 Mounting the indoor unit............................................................ 64.2.1 To install the indoor unit.............................................. 64.3 Connecting the refrigerant piping .............................................. 64.3.1 To connect the refrigerant piping to the indoor unit .... 64.4 Connecting the water piping...................................................... 64.4.1 To connect the water piping........................................ 64.4.2 To connect the recirculation piping ............................. 74.4.3 To fill the water circuit ................................................. 74.4.4 To fill the domestic hot water tank .............................. 74.4.5 To insulate the water piping ........................................ 74.5 Connecting the electrical wiring................................................. 84.5.1 About electrical compliance ........................................ 84.5.2 To connect the electrical wiring on the indoor unit...... 84.5.3 To connect the main power supply ............................. 84.5.4 To connect the backup heater power supply .............. 94.5.5 To connect the user interface ..................................... 94.5.6 To connect the shut-off valve...................................... 104.5.7 To connect the electrical meters ................................. 104.5.8 To connect the domestic hot water pump ................... 114.5.9 To connect the alarm output ....................................... 114.5.10 To connect the changeover to external heat source... 114.5.11 To connect the power consumption digital inputs ....... 114.5.12 To connect the safety thermostat (normal closedcontact) ....................................................................... 114.6 Finishing the indoor unit installation .......................................... 124.6.1 To fix the user interface cover to the indoor unit......... 124.6.2 To close the indoor unit............................................... 125 Configuration 125.1 Overview: Configuration ............................................................ 125.1.1 To access the most used commands ......................... 135.2 Basic configuration .................................................................... 135.2.1 Quick wizard: Language / time and date..................... 135.2.2 Quick wizard: Standard............................................... 145.2.3 Quick wizard: Options ................................................. 145.2.4 Quick wizard: Capacities (energy metering) ............... 155.2.5 Space heating control ................................................. 165.2.6 Domestic hot water control ......................................... 175.2.7 Contact/helpdesk number ........................................... 175.3 Menu structure: Overview installer settings............................... 186 Commissioning 196.1 Checklist before commissioning................................................ 196.2 Checklist during commissioning ................................................ 196.2.1 To check the minimum flow rate ................................. 196.2.2 To perform an air purge .............................................. 206.2.3 To perform a test run ................................................... 206.2.4 To perform an actuator test run ................................... 206.2.5 To perform an underfloor heating screed dryout.......... 207 Hand-over to the user 218 Technical data 218.1 Piping diagram: Indoor unit ........................................................ 218.2 Wiring diagram: Indoor unit ........................................................ 231 About the documentation1.1 About this documentTarget audienceAuthorised installersDocumentation setThis document is part of a documentation set. The complete setconsists of:▪ General safety precautions:▪ Safety instructions that you must read before installing▪ Format: Paper (in the box of the indoor unit)▪ Indoor unit installation manual:▪ Installation instructions▪ Format: Paper (in the box of the indoor unit)▪ Outdoor unit installation manual:▪ Installation instructions▪ Format: Paper (in the box of the outdoor unit)▪ Installer reference guide:▪ Preparation of the installation, good practices, reference data,…▪ Format: Digital files on http://www.daikineurope.com/support-and-manuals/product-information/▪ Addendum book for optional equipment:▪ Additional info about how to install optional equipment▪ Format: Paper (in the box of the indoor unit) + Digital files onhttp://www.daikineurope.com/support-and-manuals/product-information/Latest revisions of the supplied documentation may be available onthe regional Daikin website or via your dealer.The original documentation is written in English. All other languagesare translations.Technical engineering data▪ A subset of the latest technical data is available on the regionalDaikin website (publicly accessible).▪ The full set of latest technical data is available on the Daikinextranet (authentication required).2 About the box2.1 Indoor unit2.1.1 To remove the accessories from theindoor unit1 Remove the screws at the top of the unit.2 Remove the top panel.