Table of contents
Installer reference guide
3
EKHWET90~120BAV3
R32 Split series – Domestic hot water tank
4P680077-1 – 2021.11
9.1.3 About electrical compliance........................................................................................................................... 47
9.2 Connections to the indoor unit ...................................................................................................................................... 47
9.2.1 To connect the main power supply................................................................................................................ 47
9.2.2 To connect the booster heater power supply ............................................................................................... 48
9.2.3 To connect the WLAN cartridge (delivered as accessory)............................................................................. 50
10 Configuration 51
10.1 Overview: Configuration................................................................................................................................................. 51
10.1.1 To access the most used commands ............................................................................................................. 52
10.1.2 To connect the PC cable to the switch box.................................................................................................... 54
10.2 Configuration wizard....................................................................................................................................................... 54
10.3 Possible screens .............................................................................................................................................................. 55
10.3.1 Possible screens: Overview ............................................................................................................................ 55
10.3.2 Home screen................................................................................................................................................... 56
10.3.3 Main menu screen.......................................................................................................................................... 57
10.3.4 Menu screen................................................................................................................................................... 58
10.3.5 Setpoint screen............................................................................................................................................... 58
10.3.6 Detailed screen with values ........................................................................................................................... 59
10.4 Preset values and schedules........................................................................................................................................... 60
10.4.1 Using preset values......................................................................................................................................... 60
10.4.2 Using and programming schedules................................................................................................................ 61
10.4.3 Schedule screen: Example.............................................................................................................................. 62
10.5 Weather-dependent curve ............................................................................................................................................. 65
10.5.1 What is a weather-dependent curve? ........................................................................................................... 65
10.5.2 2-points curve................................................................................................................................................. 66
10.5.3 Slope-offset curve........................................................................................................................................... 67
10.5.4 Using weather-dependent curves.................................................................................................................. 68
10.6 Settings menu ................................................................................................................................................................. 69
10.6.1 Malfunctioning ............................................................................................................................................... 69
10.6.2 Tank................................................................................................................................................................. 70
10.6.3 User settings ................................................................................................................................................... 78
10.6.4 Information..................................................................................................................................................... 81
10.6.5 Installer settings ............................................................................................................................................. 82
10.6.6 Commissioning ............................................................................................................................................... 87
10.6.7 User profile ..................................................................................................................................................... 88
10.6.8 Operation........................................................................................................................................................ 88
10.6.9 WLAN .............................................................................................................................................................. 88
10.7 Menu structure: Overview user settings........................................................................................................................ 91
10.8 Menu structure: Overview installer settings.................................................................................................................. 92
11 Commissioning 93
11.1 Overview: Commissioning .............................................................................................................................................. 93
11.2 Precautions when commissioning .................................................................................................................................. 93
11.3 Checklist before commissioning ..................................................................................................................................... 94
11.4 Checklist during commissioning ..................................................................................................................................... 94
11.4.1 Operation test run .......................................................................................................................................... 95
11.4.2 Actuator test run ............................................................................................................................................ 95
12 Hand-over to the user 97
13 Maintenance and service 98
13.1 Maintenance safety precautions .................................................................................................................................... 98
13.2 Yearly maintenance ........................................................................................................................................................ 98
13.2.1 Yearly maintenance indoor unit: overview .................................................................................................... 98
13.2.2 Yearly maintenance indoor unit: instructions ............................................................................................... 99
13.3 To drain the domestic hot water tank............................................................................................................................ 100
14 Troubleshooting 101
14.1 Overview: Troubleshooting ............................................................................................................................................ 101
14.2 Precautions when troubleshooting ................................................................................................................................ 101
14.3 Solving problems based on symptoms........................................................................................................................... 102
14.3.1 Symptom: Hot water does NOT reach the desired temperature.................................................................. 102
14.3.2 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 102
14.3.3 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 102
14.4 Solving problems based on error codes ......................................................................................................................... 102
14.4.1 To display the help text in case of a malfunction .......................................................................................... 103
14.4.2 Error codes: Overview .................................................................................................................................... 103
15 Technical data 107
15.1 Piping diagram: Indoor unit ............................................................................................................................................ 108
15.2 Wiring diagram: Indoor unit ........................................................................................................................................... 109
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