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User reference guide

Daikin Altherma 3 H MT F

ETVZ12S18E▲6V▼

ETVZ12S23E▲6V▼

ETVZ12S18E▲9W▼

ETVZ12S23E▲9W▼

▲= A, B, C, …, Z

▼= , , 1, 2, 3, …, 9

Table of contents

User reference guide

ETVZ12S18+23E

Daikin Altherma 3 H MT F

4P634889-1A – 2022.08

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 17

5.1 User interface: Overview ................................................................................................................................................ 17

5.2 Menu structure: Overview user settings........................................................................................................................ 19

5.3 Possible screens: Overview............................................................................................................................................. 20

5.3.1 Home screen................................................................................................................................................... 20

5.3.2 Main menu screen.......................................................................................................................................... 23

5.3.3 Setpoint screen............................................................................................................................................... 24

5.3.4 Detailed screen with values ........................................................................................................................... 25

5.4 Turning operation ON or OFF ......................................................................................................................................... 25

5.4.1 Visual indication.............................................................................................................................................. 25

5.4.2 To turn ON or OFF .......................................................................................................................................... 26

5.5 Reading out information................................................................................................................................................. 27

5.6 Space heating/cooling control........................................................................................................................................ 27

5.6.1 About space heating/cooling control............................................................................................................. 27

5.6.2 Setting the space operation mode................................................................................................................. 27

5.6.3 Determining which temperature control you are using................................................................................ 29

5.6.4 To change the desired room temperature .................................................................................................... 29

5.6.5 To change the desired leaving water temperature ....................................................................................... 30

5.7 Domestic hot water control............................................................................................................................................ 31

5.7.1 About domestic hot water control................................................................................................................. 31

5.7.2 Reheat mode .................................................................................................................................................. 32

5.7.3 Scheduled mode............................................................................................................................................. 33

5.7.4 Scheduled + reheat mode .............................................................................................................................. 33

5.7.5 To change the domestic hot water temperature .......................................................................................... 34

5.7.6 Using DHW powerful operation..................................................................................................................... 34

5.8 Preset values and schedules........................................................................................................................................... 35

5.8.1 Using preset values......................................................................................................................................... 35

5.8.2 Using and programming schedules................................................................................................................ 36

5.8.3 Schedule screen: Example.............................................................................................................................. 39

5.8.4 Setting the energy prices................................................................................................................................ 43

5.9 Weather-dependent curve ............................................................................................................................................. 45

5.9.1 What is a weather-dependent curve? ........................................................................................................... 45

5.9.2 2-points curve................................................................................................................................................. 46

5.9.3 Slope-offset curve........................................................................................................................................... 47

5.9.4 Using weather-dependent curves.................................................................................................................. 48

5.10 Other functionalities....................................................................................................................................................... 50

5.10.1 To configure time and date ............................................................................................................................ 50

5.10.2 Using quiet mode ........................................................................................................................................... 51

5.10.3 Using holiday mode ........................................................................................................................................ 51

5.10.4 Using WLAN .................................................................................................................................................... 52

6 Energy saving tips 55

7 Maintenance and service 56

7.1 Overview: Maintenance and service .............................................................................................................................. 56

8 Troubleshooting 57

8.1 To display the help text in case of a malfunction........................................................................................................... 57

8.2 To check the malfunction history ................................................................................................................................... 57

8.3 Symptom: You are feeling too cold (hot) in your living room........................................................................................ 58

8.4 Symptom: The water at the tap is too cold.................................................................................................................... 58

8.5 Symptom: Heat pump failure ......................................................................................................................................... 59

Table of contents

User reference guide

ETVZ12S18+23E

Daikin Altherma 3 H MT F

4P634889-1A – 2022.08

8.6 Symptom: The system is making gurgling noises after commissioning......................................................................... 59

9 Relocation 61

9.1 Overview: Relocation...................................................................................................................................................... 61

10 Disposal 62

11 Glossary 63

12 Installer settings: Tables to be filled in by installer 64

12.1 Configuration wizard....................................................................................................................................................... 64

12.2 Settings menu ................................................................................................................................................................. 65