Daikin ERLA03DAV3, Installer'S Reference Manual, Page: 4 / 192

Table of contents
Installer reference guide
4
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1A – 2020.05
8.3.3 To connect the user interface ........................................................................................................................ 84
8.3.4 To connect the shut-off valve ........................................................................................................................ 85
8.3.5 To connect the electricity meters .................................................................................................................. 86
8.3.6 To connect the domestic hot water pump .................................................................................................... 87
8.3.7 To connect the alarm output ......................................................................................................................... 88
8.3.8 To connect the space heating ON/OFF output.............................................................................................. 89
8.3.9 To connect the changeover to external heat source..................................................................................... 90
8.3.10 To connect the power consumption digital inputs........................................................................................ 91
8.3.11 To connect the safety thermostat (normally closed contact) ....................................................................... 92
8.4 After connecting the electrical wiring to the indoor unit .............................................................................................. 94
9 Configuration 96
9.1 Overview: Configuration................................................................................................................................................. 96
9.1.1
To change the user permission level ............................................................................................................. 97
9.1.2 To access the most used commands ............................................................................................................. 97
9.1.3 To copy the system settings from the first to the second user interface ..................................................... 99
9.1.4 Quick wizard: Set the system layout after first power ON ............................................................................ 100
9.2 Basic configuration.......................................................................................................................................................... 101
9.2.1
Quick wizard: Language / time and date ....................................................................................................... 101
9.2.2 Quick wizard: Standard .................................................................................................................................. 101
9.2.3 Quick wizard: Options .................................................................................................................................... 104
9.2.4 Space heating/cooling control ....................................................................................................................... 108
9.2.5 Domestic hot water control ........................................................................................................................... 111
9.2.6 Contact/helpdesk number ............................................................................................................................. 111
9.3 Weather-dependent curve ............................................................................................................................................. 112
9.3.1
What is a weather-dependent curve? ........................................................................................................... 112
9.3.2 2-points curve................................................................................................................................................. 112
9.3.3 Using weather-dependent curves.................................................................................................................. 113
9.4 Advanced configuration/optimisation............................................................................................................................ 114
9.4.1
Space heating/cooling operation: advanced ................................................................................................. 114
9.4.2 Domestic hot water control: advanced ......................................................................................................... 121
9.4.3 Heat source settings....................................................................................................................................... 126
9.4.4 System settings............................................................................................................................................... 129
9.5 Menu structure: Overview user settings........................................................................................................................ 137
9.6 Menu structure: Overview installer settings.................................................................................................................. 138
10 Commissioning 139
10.1 Overview: Commissioning .............................................................................................................................................. 139
10.2 Precautions when commissioning .................................................................................................................................. 139
10.3 Checklist before commissioning..................................................................................................................................... 140
10.4 Checklist during commissioning ..................................................................................................................................... 141
10.4.1
To check the minimum flow rate ................................................................................................................... 141
10.4.2 Air purge function........................................................................................................................................... 141
10.4.3 To perform a test run ..................................................................................................................................... 143
10.4.4 To perform an actuator test run .................................................................................................................... 143
10.4.5 Underfloor heating screed dryout ................................................................................................................. 144
11 Hand-over to the user 147
12 Maintenance and service 148
12.1 Overview: Maintenance and service .............................................................................................................................. 148
12.2 Maintenance safety precautions.................................................................................................................................... 148
12.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 149
12.4 Checklist for yearly maintenance of the indoor unit ..................................................................................................... 149
12.4.1
To drain the domestic hot water tank ........................................................................................................... 152
12.5 About cleaning the water filter in case of trouble ......................................................................................................... 152
12.5.1
To remove the water filter ............................................................................................................................. 152
12.5.2 To clean the water filter in case of trouble.................................................................................................... 153
12.5.3 To install the water filter ................................................................................................................................ 154
13 Troubleshooting 156
13.1 Overview: Troubleshooting ............................................................................................................................................ 156
13.2 Precautions when troubleshooting ................................................................................................................................ 156
13.3 Solving problems based on symptoms........................................................................................................................... 157
13.3.1
Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 157
13.3.2 Symptom: The system is making gurgling noises after commissioning ........................................................ 157
13.3.3 Symptom: The pump is blocked..................................................................................................................... 158
13.3.4 Symptom: The pump is making noise (cavitation)......................................................................................... 158
13.3.5 Symptom: The pressure relief valve opens.................................................................................................... 159
13.3.6 Symptom: The water pressure relief valve leaks........................................................................................... 159
13.3.7 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 160