Menu screen................................................................................................................................................... 125

9.3.5

Setpoint screen............................................................................................................................................... 125

9.3.6

Detailed screen with values ........................................................................................................................... 126

9.3.7

Schedule screen: Example.............................................................................................................................. 126

9.4

Weather-dependent curve ............................................................................................................................................. 130

9.4.1

What is a weather-dependent curve? ........................................................................................................... 130

9.4.2

2-points curve................................................................................................................................................. 131

9.4.3

Slope-offset curve........................................................................................................................................... 132

9.4.4

Using weather-dependent curves.................................................................................................................. 133

9.5

Settings menu ................................................................................................................................................................. 135

9.5.1

Malfunctioning ............................................................................................................................................... 135

9.5.2

Room............................................................................................................................................................... 136

9.5.3

Main zone ....................................................................................................................................................... 140

9.5.4

Additional zone............................................................................................................................................... 149

9.5.5

Space heating/cooling .................................................................................................................................... 155

9.5.6

Tank................................................................................................................................................................. 163

9.5.7

User settings ................................................................................................................................................... 170

9.5.8

Information..................................................................................................................................................... 175

9.5.9

Installer settings ............................................................................................................................................. 176

9.5.10

Commissioning ............................................................................................................................................... 194

9.5.11

Operation........................................................................................................................................................ 194

9.5.12

WLAN adapter ................................................................................................................................................ 195

9.6

Menu structure: Overview user settings........................................................................................................................ 197

9.7

Menu structure: Overview installer settings.................................................................................................................. 198

10 Commissioning

10.1

Overview: Commissioning .............................................................................................................................................. 199

10.2

Precautions when commissioning .................................................................................................................................. 200

10.3

Checklist before commissioning..................................................................................................................................... 200

10.4

Checklist during commissioning ..................................................................................................................................... 201

10.4.1

Minimum flow rate......................................................................................................................................... 201

10.4.2

Air purge function........................................................................................................................................... 201

10.4.3

Operation test run.......................................................................................................................................... 203

10.4.4

Actuator test run ............................................................................................................................................ 204

10.4.5

Underfloor heating screed dryout ................................................................................................................. 205

11 Hand-over to the user

12 Maintenance and service

12.1

Overview: Maintenance and service .............................................................................................................................. 210

12.2

Maintenance safety precautions.................................................................................................................................... 210

12.3

Yearly maintenance ........................................................................................................................................................ 211

12.3.1

Yearly maintenance outdoor unit: overview ................................................................................................. 211

12.3.2

Yearly maintenance outdoor unit: instructions............................................................................................. 211

12.3.3

Yearly maintenance indoor unit: overview.................................................................................................... 211

12.3.4

Yearly maintenance indoor unit: instructions ............................................................................................... 211

12.4

To drain the domestic hot water tank............................................................................................................................ 214

12.5

About cleaning the water filter in case of trouble ......................................................................................................... 214

12.5.1

To remove the water filter ............................................................................................................................. 215

12.5.2

To clean the water filter in case of trouble.................................................................................................... 215

12.5.3

To install the water filter ................................................................................................................................ 216

13 Troubleshooting

13.1

Overview: Troubleshooting ............................................................................................................................................ 218

13.2

Precautions when troubleshooting ................................................................................................................................ 218

13.3

Solving problems based on symptoms........................................................................................................................... 219

13.3.1

Symptom: The unit is NOT heating or cooling as expected........................................................................... 219

13.3.2

Symptom: Hot water does NOT reach the desired temperature.................................................................. 220

13.3.3

Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 220

13.3.4

Symptom: The system is making gurgling noises after commissioning ........................................................ 220

13.3.5

Symptom: The pump is blocked..................................................................................................................... 221

13.3.6

Symptom: The pump is making noise (cavitation)......................................................................................... 221

13.3.7

Symptom: The pressure relief valve opens.................................................................................................... 222

13.3.8

Symptom: The water pressure relief valve leaks........................................................................................... 222

13.3.9

Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 223

13.3.10 Symptom: The pressure at the tapping point is temporarily unusually high................................................ 224

13.3.11 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 224

13.4

Solving problems based on error codes ......................................................................................................................... 224

13.4.1

To display the help text in case of a malfunction .......................................................................................... 224

13.4.2

Error codes: Overview .................................................................................................................................... 225

EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)

Daikin Altherma 3 H HT F

4P587502-1A - 2020.01

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