Table of contents
Installer reference guide
4
EPRA14~18D + ETVH/X16S18+23E
Daikin Altherma 3 H HT F
4P644737-1A – 2022.03
10.3.3 Main menu screen.......................................................................................................................................... 139
10.3.4 Menu screen................................................................................................................................................... 140
10.3.5 Setpoint screen............................................................................................................................................... 141
10.3.6 Detailed screen with values ........................................................................................................................... 142
10.3.7 Schedule screen: Example.............................................................................................................................. 142
10.4 Weather-dependent curve............................................................................................................................................. 146
10.4.1 What is a weather-dependent curve? ........................................................................................................... 146
10.4.2 2-points curve................................................................................................................................................. 147
10.4.3 Slope-offset curve........................................................................................................................................... 148
10.4.4 Using weather-dependent curves.................................................................................................................. 149
10.5 Settings menu ................................................................................................................................................................. 151
10.5.1 Malfunctioning ............................................................................................................................................... 151
10.5.2 Room............................................................................................................................................................... 152
10.5.3 Main zone ....................................................................................................................................................... 156
10.5.4 Additional zone............................................................................................................................................... 167
10.5.5 Space heating/cooling .................................................................................................................................... 171
10.5.6 Tank................................................................................................................................................................. 180
10.5.7 User settings ................................................................................................................................................... 188
10.5.8 Information..................................................................................................................................................... 193
10.5.9 Installer settings ............................................................................................................................................. 194
10.5.10 Commissioning ............................................................................................................................................... 217
10.5.11 User profile ..................................................................................................................................................... 217
10.5.12 Operation........................................................................................................................................................ 218
10.5.13 WLAN .............................................................................................................................................................. 218
10.6 Menu structure: Overview user settings........................................................................................................................ 221
10.7 Menu structure: Overview installer settings.................................................................................................................. 222
11 Commissioning 224
11.1 Overview: Commissioning .............................................................................................................................................. 224
11.2 Precautions when commissioning.................................................................................................................................. 225
11.3 Checklist before commissioning..................................................................................................................................... 225
11.4 Checklist during commissioning ..................................................................................................................................... 226
11.4.1 Minimum flow rate......................................................................................................................................... 226
11.4.2 Air purge function........................................................................................................................................... 227
11.4.3 Operation test run .......................................................................................................................................... 228
11.4.4 Actuator test run ............................................................................................................................................ 229
11.4.5 Underfloor heating screed dryout ................................................................................................................. 230
12 Hand-over to the user 234
13 Maintenance and service 235
13.1 Maintenance safety precautions.................................................................................................................................... 235
13.2 Yearly maintenance ........................................................................................................................................................ 235
13.2.1 Yearly maintenance outdoor unit: overview ................................................................................................. 235
13.2.2 Yearly maintenance outdoor unit: instructions ............................................................................................. 236
13.2.3 Yearly maintenance indoor unit: overview .................................................................................................... 236
13.2.4 Yearly maintenance indoor unit: instructions ............................................................................................... 236
13.3 To drain the domestic hot water tank............................................................................................................................ 239
13.4 About cleaning the water filter in case of trouble ......................................................................................................... 239
13.4.1 To remove the water filter ............................................................................................................................. 239
13.4.2 To clean the water filter in case of trouble.................................................................................................... 240
13.4.3 To install the water filter ................................................................................................................................ 241
14 Troubleshooting 242
14.1 Overview: Troubleshooting ............................................................................................................................................ 242
14.2 Precautions when troubleshooting ................................................................................................................................ 242
14.3 Solving problems based on symptoms........................................................................................................................... 243
14.3.1 Symptom: The unit is NOT heating or cooling as expected........................................................................... 243
14.3.2 Symptom: Hot water does NOT reach the desired temperature.................................................................. 244
14.3.3 Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 244
14.3.4 Symptom: The system is making gurgling noises after commissioning ........................................................ 244
14.3.5 Symptom: The pump is blocked..................................................................................................................... 245
14.3.6 Symptom: The pump is making noise (cavitation)......................................................................................... 246
14.3.7 Symptom: The pressure relief valve opens.................................................................................................... 246
14.3.8 Symptom: The water pressure relief valve leaks ........................................................................................... 247
14.3.9 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 247
14.3.10 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 248
14.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 248
14.4 Solving problems based on error codes......................................................................................................................... 249
14.4.1 To display the help text in case of a malfunction .......................................................................................... 249
14.4.2 Error codes of the unit ................................................................................................................................... 249
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