Daikin EKHWETU120BAV3 Bedienungsanleitung

Daikin Durchlauferhitzer und Boiler EKHWETU120BAV3

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User reference guide

R32 Split series – Domestic hot water tank

EKHWET90B▲V3▼

EKHWET(U)120B▲V3▼

▲= 1, 2, 3, …, 9, A, B, C, …, Z

▼= , , 1, 2, 3, …, 9

Table of contents

User reference guide

EKHWET90+(U)120B

R32 Split series – Domestic hot water tank

4P680076-1C – 2024.04

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 Domestic hot water........................................................................................................................................................ 11

5 Operation 13

5.1 User interface: Overview ............................................................................................................................................... 13

5.2 Menu structure: Overview user settings ....................................................................................................................... 15

5.3 Possible screens: Overview ............................................................................................................................................ 16

5.3.1 Home screen.................................................................................................................................................. 16

5.3.2 Main menu screen ......................................................................................................................................... 17

5.3.3 Setpoint screen .............................................................................................................................................. 18

5.3.4 Detailed screen with values........................................................................................................................... 19

5.4 Turning operation ON or OFF......................................................................................................................................... 19

5.4.1 Visual indication............................................................................................................................................. 19

5.4.2 To turn ON or OFF.......................................................................................................................................... 20

5.5 Reading out information ................................................................................................................................................ 20

5.6 Domestic hot water control ........................................................................................................................................... 21

5.6.1 About domestic hot water control................................................................................................................ 21

5.6.2 Reheat mode.................................................................................................................................................. 22

5.6.3 Scheduled mode ............................................................................................................................................ 22

5.6.4 Scheduled + reheat mode ............................................................................................................................. 23

5.6.5 To change the domestic hot water temperature ......................................................................................... 23

5.6.6 Using DHW powerful operation .................................................................................................................... 24

5.7 Preset values and schedules .......................................................................................................................................... 25

5.7.1 Using preset values........................................................................................................................................ 25

5.7.2 Using and programming schedules ............................................................................................................... 25

5.7.3 Schedule screen: Example ............................................................................................................................. 27

5.8 Weather-dependent curve ............................................................................................................................................ 30

5.8.1 What is a weather-dependent curve?........................................................................................................... 30

5.8.2 2-points curve ................................................................................................................................................ 31

5.8.3 Slope-offset curve.......................................................................................................................................... 32

5.8.4 Using weather-dependent curves ................................................................................................................. 33

5.9 Priority schedule............................................................................................................................................................. 34

5.10 Operation mode ............................................................................................................................................................. 35

5.11 Other functionalities ...................................................................................................................................................... 36

5.11.1 To configure time and date ........................................................................................................................... 36

5.11.2 Using quiet mode........................................................................................................................................... 36

5.11.3 Using holiday mode ....................................................................................................................................... 37

5.11.4 Using WLAN ................................................................................................................................................... 38

6 Energy saving tips 40

7 Maintenance and service 41

7.1 Overview: Maintenance and service.............................................................................................................................. 41

8 Troubleshooting 43

8.1 To display the help text in case of a malfunction .......................................................................................................... 43

8.2 To check the malfunction history .................................................................................................................................. 43

8.3 Symptom: The water at the tap is too cold ................................................................................................................... 44

8.4 Symptom: Heat pump failure......................................................................................................................................... 44

9 Relocation 45

9.1 Overview: Relocation ..................................................................................................................................................... 45

10 Disposal 46

11 Glossary 47