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ERLA11~16D + EBSH/X(B)11+16P30+50D
Daikin Altherma 3 R ECH₂O
4P663482-1C - 2023.05
12.4.5
Underfloor heating screed dryout ................................................................................................................. 258
12.4.6
To set up bivalent heat sources ..................................................................................................................... 261
14.1
Overview: Maintenance and service .............................................................................................................................. 263
14.2
Maintenance safety precautions.................................................................................................................................... 263
14.3
Yearly maintenance ........................................................................................................................................................ 264
14.3.1
Yearly maintenance outdoor unit: overview ................................................................................................. 264
14.3.2
Yearly maintenance outdoor unit: instructions............................................................................................. 264
14.3.3
Yearly maintenance indoor unit: overview.................................................................................................... 264
14.3.4
Yearly maintenance indoor unit: instructions ............................................................................................... 264
15.1
Overview: Troubleshooting ............................................................................................................................................ 266
15.2
Precautions when troubleshooting ................................................................................................................................ 266
15.3
Solving problems based on symptoms........................................................................................................................... 267
15.3.1
Symptom: The unit is NOT heating or cooling as expected........................................................................... 267
15.3.2
Symptom: Hot water does NOT reach the desired temperature.................................................................. 268
15.3.3
Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 268
15.3.4
Symptom: The system is making gurgling noises after commissioning ........................................................ 269
15.3.5
Symptom: The pump is blocked..................................................................................................................... 270
15.3.6
Symptom: The pump is making noise (cavitation)......................................................................................... 270
15.3.7
Symptom: The pressure relief valve opens.................................................................................................... 271
15.3.8
Symptom: The water pressure relief valve leaks........................................................................................... 271
15.3.9
Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 272
15.3.10 Symptom: Tank disinfection function is NOT completed correctly (AH-error)............................................. 273
15.4
Solving problems based on error codes ......................................................................................................................... 273
15.4.1
To display the help text in case of a malfunction .......................................................................................... 273
15.4.2
Error codes: Overview .................................................................................................................................... 274
16.1
To recover refrigerant..................................................................................................................................................... 278
16.1.1
To open the stop valves ................................................................................................................................. 279
16.1.2
To manually open the electronic expansion valves....................................................................................... 279
16.1.3
Recovery mode - In case of 3N~ models (7-segments display) .................................................................. 280
16.1.4
Recovery mode - In case of 1N~ models (7-LEDs display) .......................................................................... 283
16.2
To drain the storage tank ............................................................................................................................................... 284
16.2.1
To drain the storage tank without a connected pressureless solar system.................................................. 284
16.2.2
To drain the storage tank with a connected pressureless solar system ....................................................... 286
17.1
Service space: Outdoor unit ........................................................................................................................................... 288
17.2
Piping diagram: Outdoor unit ......................................................................................................................................... 290
17.3
Piping diagram: Indoor unit ............................................................................................................................................ 291
17.4
Wiring diagram: Outdoor unit ........................................................................................................................................ 292
17.5
Wiring diagram: Indoor unit ........................................................................................................................................... 293
17.6
ESP curve: Indoor unit..................................................................................................................................................... 299
17.7
Name plate: Indoor unit ................................................................................................................................................. 299
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Installer reference guide
5
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