Schedule screen: Example.............................................................................................................................. 114

9.4

Weather-dependent curve ............................................................................................................................................. 118

9.4.1

What is a weather-dependent curve? ........................................................................................................... 118

9.4.2

2-points curve................................................................................................................................................. 119

9.4.3

Slope-offset curve........................................................................................................................................... 120

9.4.4

Using weather-dependent curves.................................................................................................................. 121

9.5

Settings menu ................................................................................................................................................................. 123

9.5.1

Malfunctioning ............................................................................................................................................... 123

9.5.2

Room............................................................................................................................................................... 124

9.5.3

Main zone ....................................................................................................................................................... 128

9.5.4

Additional zone............................................................................................................................................... 138

9.5.5

Space heating/cooling .................................................................................................................................... 143

9.5.6

Tank................................................................................................................................................................. 152

9.5.7

User settings ................................................................................................................................................... 158

9.5.8

Information..................................................................................................................................................... 163

9.5.9

Installer settings ............................................................................................................................................. 164

9.5.10

Commissioning ............................................................................................................................................... 182

9.5.11

Operation........................................................................................................................................................ 182

9.6

Menu structure: Overview user settings........................................................................................................................ 183

9.7

Menu structure: Overview installer settings.................................................................................................................. 184

10 Commissioning

10.1

Overview: Commissioning .............................................................................................................................................. 185

10.2

Precautions when commissioning .................................................................................................................................. 186

10.3

Checklist before commissioning..................................................................................................................................... 186

10.4

Checklist during commissioning ..................................................................................................................................... 187

10.4.1

Minimum flow rate......................................................................................................................................... 187

10.4.2

Air purge function........................................................................................................................................... 188

10.4.3

Operation test run.......................................................................................................................................... 191

10.4.4

Actuator test run ............................................................................................................................................ 191

10.4.5

Underfloor heating screed dryout ................................................................................................................. 192

11 Hand-over to the user

12 Maintenance and service

12.1

Overview: Maintenance and service .............................................................................................................................. 197

12.2

Maintenance safety precautions.................................................................................................................................... 197

12.3

Yearly maintenance ........................................................................................................................................................ 198

12.3.1

Yearly maintenance outdoor unit: overview ................................................................................................. 198

12.3.2

Yearly maintenance outdoor unit: instructions............................................................................................. 198

12.3.3

Yearly maintenance indoor unit: overview.................................................................................................... 198

12.3.4

Yearly maintenance indoor unit: instructions ............................................................................................... 198

12.4

To drain the domestic hot water tank............................................................................................................................ 201

12.5

About cleaning the water filter in case of trouble ......................................................................................................... 202

12.5.1

To remove the water filter ............................................................................................................................. 202

12.5.2

To clean the water filter in case of trouble.................................................................................................... 202

12.5.3

To install the water filter ................................................................................................................................ 204

13 Troubleshooting

13.1

Overview: Troubleshooting ............................................................................................................................................ 205

13.2

Precautions when troubleshooting ................................................................................................................................ 205

13.3

Solving problems based on symptoms........................................................................................................................... 206

13.3.1

Symptom: The unit is NOT heating or cooling as expected........................................................................... 206

13.3.2

Symptom: Hot water does NOT reach the desired temperature.................................................................. 207

13.3.3

Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 207

13.3.4

Symptom: The system is making gurgling noises after commissioning ........................................................ 207

13.3.5

Symptom: The pump is blocked..................................................................................................................... 208

13.3.6

Symptom: The pump is making noise (cavitation)......................................................................................... 208

13.3.7

Symptom: The pressure relief valve opens.................................................................................................... 209

13.3.8

Symptom: The water pressure relief valve leaks........................................................................................... 209

13.3.9

Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 210

13.3.10 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 211

13.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 211

13.4

Solving problems based on error codes ......................................................................................................................... 211

13.4.1

To display the help text in case of a malfunction .......................................................................................... 211

13.4.2

Error codes: Overview .................................................................................................................................... 212

14 Disposal

14.1

To recover refrigerant..................................................................................................................................................... 216

15 Technical data

EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W

Daikin Altherma 3 H HT F

4P587503-1 - 2019.07

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