Daikin Altherma EHVZ04S18CB Installer's Reference Manual

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

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Daikin Altherma EHVZ04S18CB Installer's Reference Manual Manual pdf 65 page image

10 Hand-over to the userInstaller reference guide65ERLQ004~008CA + EHVZ04+08S18CBDaikin Altherma – Low temperature split4P401676-1D – 2018.07To readout the status of an underfloor heatingscreed dryout1 Press .2 The current step of the program, the total remaining time, andthe current desired leaving water temperature will be displayed.INFORMATIONThere is limited access to the menu structure. Only thefollowing menus can be accessed:▪ Information.▪ Installer settings > Commissioning > UFH screeddryout.To interrupt an underfloor heating screed dryoutWhen the program is stopped by an error, an operation switch off, ora power failure, the U3 error will be displayed on the user interface.To resolve the error codes, see "12.4 Solving problems based onerror codes" on page 69. To reset the U3 error, your Userpermission level needs to be Installer.1 Go to the underfloor heating screed dryout screen.2 Press .3 Press to interrupt the program.4 Select OK and press .Result: The underfloor heating screed dryout program is stopped.When the program is stopped due to an error, an operation switch-off, or a power failure, you can read out the underfloor heatingscreed dryout status.5 Go to [A.7.2]: > Installer settings > Commissioning > UFHscreed dryout > Dryout status > Stopped at and followed by thelast executed step.6 Modify and restart the execution of the program.10 Hand-over to the userOnce the test run is finished and the unit operates properly, pleasemake sure the following is clear for the user:▪ Fill in the installer setting table (in the operation manual) with theactual settings.▪ Make sure that the user has the printed documentation and askhim/her to keep it for future reference. Inform the user that he canfind the complete documentation at the URL mentioned earlier inthis manual.▪ Explain the user how to properly operate the system and what todo in case of problems.▪ Show the user what to do for the maintenance of the unit.▪ Explain the user about energy saving tips as described in theoperation manual.11 Maintenance and serviceNOTICEMaintenance MUST be done by an authorized installer orservice agent.We recommend performing maintenance at least once ayear. However, applicable legislation might require shortermaintenance intervals.NOTICEIn Europe, the greenhouse gas emissions of the totalrefrigerant charge in the system (expressed as tonnes CO2equivalent) is used to determine the maintenance intervals.Follow the applicable legislation.Formula to calculate the greenhouse gas emissions:GWP value of the refrigerant × Total refrigerant charge [inkg] / 100011.1 Overview: Maintenance andserviceThis chapter contains information about:▪ The yearly maintenance of the outdoor unit▪ The yearly maintenance of the indoor unit11.2 Maintenance safety precautionsDANGER: RISK OF ELECTROCUTIONDANGER: RISK OF BURNINGNOTICE: Risk of electrostatic dischargeBefore performing any maintenance or service work, toucha metal part of the unit in order to eliminate static electricityand to protect the PCB.11.2.1 Opening the indoor unitCAUTIONThe front panel is heavy. Be careful NOT to jam yourfingers when opening or closing the unit.You just need to remove the front panel of the unit to gain access tomost parts which need maintenance. In rare cases, you may alsoneed to remove the switch box.11.3 Checklist for yearly maintenanceof the outdoor unitCheck the following at least once a year:▪ Heat exchangerThe heat exchanger of the outdoor unit can get blocked up due todust, dirt, leaves, etc. It is recommended to clean the heatexchanger yearly. A blocked heat exchanger can lead to too lowpressure or too high pressure leading to worse performance.11.4 Checklist for yearly maintenanceof the indoor unitCheck the following at least once a year:▪ Water pressure▪ Water filters▪ Water pressure relief valve▪ Relief valve hose▪ Pressure relief valve of the domestic hot water tank▪ Switch box▪ Descaling▪ Chemical disinfection▪ Anode