Table of contents
User reference guide
2
ETVZ16S18+23E
Daikin Altherma 3 H HT F
4P644741-1A – 2022.03
Table of contents
1 About this document 4
1.1 Meaning of warnings and symbols................................................................................................................................. 5
2 User safety instructions 7
2.1 General ............................................................................................................................................................................ 7
2.2 Instructions for safe operation ....................................................................................................................................... 8
3 About the system 10
3.1 Components in a typical system layout.......................................................................................................................... 10
4 Quick guide 11
4.1 User permission level...................................................................................................................................................... 11
4.2 Space heating/cooling..................................................................................................................................................... 11
4.3 Domestic hot water ........................................................................................................................................................ 15
5 Operation 16
5.1 User interface: Overview ................................................................................................................................................ 16
5.2 Menu structure: Overview user settings........................................................................................................................ 18
5.3 Possible screens: Overview............................................................................................................................................. 19
5.3.1 Home screen................................................................................................................................................... 19
5.3.2 Main menu screen.......................................................................................................................................... 22
5.3.3 Setpoint screen............................................................................................................................................... 23
5.3.4 Detailed screen with values ........................................................................................................................... 24
5.4 Turning operation ON or OFF ......................................................................................................................................... 24
5.4.1 Visual indication.............................................................................................................................................. 24
5.4.2 To turn ON or OFF .......................................................................................................................................... 25
5.5 Reading out information................................................................................................................................................. 26
5.6 Space heating/cooling control........................................................................................................................................ 26
5.6.1 About space heating/cooling control............................................................................................................. 26
5.6.2 Setting the space operation mode................................................................................................................. 26
5.6.3 Determining which temperature control you are using................................................................................ 28
5.6.4 To change the desired room temperature .................................................................................................... 28
5.6.5 To change the desired leaving water temperature ....................................................................................... 29
5.7 Domestic hot water control............................................................................................................................................ 30
5.7.1 About domestic hot water control................................................................................................................. 30
5.7.2 Reheat mode .................................................................................................................................................. 31
5.7.3 Scheduled mode ............................................................................................................................................. 32
5.7.4 Scheduled + reheat mode .............................................................................................................................. 32
5.7.5 To change the domestic hot water temperature .......................................................................................... 33
5.7.6 Using DHW powerful operation ..................................................................................................................... 33
5.8 Preset values and schedules........................................................................................................................................... 34
5.8.1 Using preset values......................................................................................................................................... 34
5.8.2 Using and programming schedules................................................................................................................ 34
5.8.3 Schedule screen: Example.............................................................................................................................. 37
5.8.4 Setting the energy prices................................................................................................................................ 41
5.9 Weather-dependent curve ............................................................................................................................................. 43
5.9.1 What is a weather-dependent curve? ........................................................................................................... 43
5.9.2 2-points curve................................................................................................................................................. 44
5.9.3 Slope-offset curve........................................................................................................................................... 45
5.9.4 Using weather-dependent curves.................................................................................................................. 46
5.10 Other functionalities....................................................................................................................................................... 48
5.10.1 To configure time and date ............................................................................................................................ 48
5.10.2 Using quiet mode ........................................................................................................................................... 49
5.10.3 Using holiday mode ........................................................................................................................................ 49
5.10.4 Using WLAN .................................................................................................................................................... 50
6 Energy saving tips 53
7 Maintenance and service 54
7.1 Overview: Maintenance and service .............................................................................................................................. 54
8 Troubleshooting 55
8.1 To display the help text in case of a malfunction........................................................................................................... 55
8.2 To check the malfunction history................................................................................................................................... 55
8.3 Symptom: You are feeling too cold (hot) in your living room........................................................................................ 56
8.4 Symptom: The water at the tap is too cold.................................................................................................................... 56
8.5 Symptom: Heat pump failure ......................................................................................................................................... 57
