Daikin EHFZ03S18DJ3V, Installer'S Reference Manual

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Table of contents
Installer reference guide
4
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1B – 2021.10
9.3.3 To connect the user interface ........................................................................................................................ 97
9.3.4 To connect the shut-off valve ........................................................................................................................ 99
9.3.5 To connect the electricity meters .................................................................................................................. 100
9.3.6 To connect the domestic hot water pump .................................................................................................... 101
9.3.7 To connect the alarm output ......................................................................................................................... 102
9.3.8 To connect the space cooling/heating ON/OFF output................................................................................. 103
9.3.9 To connect the changeover to external heat source..................................................................................... 104
9.3.10 To connect the power consumption digital inputs........................................................................................ 105
9.3.11 To connect the safety thermostat (normally closed contact) ....................................................................... 106
9.4 After connecting the electrical wiring to the indoor unit .............................................................................................. 108
10 Configuration 110
10.1 Overview: Configuration................................................................................................................................................. 110
10.1.1
To change the user permission level ............................................................................................................. 111
10.1.2 To access the most used commands ............................................................................................................. 112
10.1.3 To copy the system settings from the first to the second user interface ..................................................... 113
10.1.4 Quick wizard: Set the system layout after first power ON ............................................................................ 114
10.2 Basic configuration.......................................................................................................................................................... 115
10.2.1
Quick wizard: Language / time and date ....................................................................................................... 115
10.2.2 Quick wizard: Standard .................................................................................................................................. 115
10.2.3 Quick wizard: Options .................................................................................................................................... 118
10.2.4 Space heating/cooling control ....................................................................................................................... 123
10.2.5 Domestic hot water control ........................................................................................................................... 126
10.2.6 Contact/helpdesk number ............................................................................................................................. 127
10.3 Weather-dependent curve ............................................................................................................................................. 127
10.3.1
What is a weather-dependent curve? ........................................................................................................... 127
10.3.2 2-points curve................................................................................................................................................. 128
10.3.3 Using weather-dependent curves.................................................................................................................. 128
10.4 Advanced configuration/optimisation............................................................................................................................ 129
10.4.1
Space heating/cooling operation: advanced ................................................................................................. 129
10.4.2 Domestic hot water control: advanced ......................................................................................................... 139
10.4.3 Heat source settings....................................................................................................................................... 144
10.4.4 System settings............................................................................................................................................... 147
10.5 Menu structure: Overview user settings........................................................................................................................ 155
10.6 Menu structure: Overview installer settings.................................................................................................................. 156
11 Commissioning 158
11.1 Overview: Commissioning .............................................................................................................................................. 158
11.2 Precautions when commissioning .................................................................................................................................. 159
11.3 Checklist before commissioning..................................................................................................................................... 159
11.4 Checklist during commissioning ..................................................................................................................................... 160
11.4.1
To check the minimum flow rate ................................................................................................................... 160
11.4.2 Air purge function........................................................................................................................................... 161
11.4.3 To perform a test run ..................................................................................................................................... 162
11.4.4 To perform an actuator test run .................................................................................................................... 163
11.4.5 Underfloor heating screed dryout ................................................................................................................. 163
12 Hand-over to the user 167
13 Maintenance and service 168
13.1 Maintenance safety precautions.................................................................................................................................... 168
13.2 Checklist for yearly maintenance of the outdoor unit................................................................................................... 169
13.3 Checklist for yearly maintenance of the indoor unit ..................................................................................................... 169
13.3.1
To drain the domestic hot water tank ........................................................................................................... 172
13.4 About cleaning the water filter in case of trouble ......................................................................................................... 172
13.4.1
To remove the water filter ............................................................................................................................. 172
13.4.2 To clean the water filter in case of trouble.................................................................................................... 173
13.4.3 To install the water filter ................................................................................................................................ 174
14 Troubleshooting 176
14.1 Overview: Troubleshooting ............................................................................................................................................ 176
14.2 Precautions when troubleshooting ................................................................................................................................ 176
14.3 Solving problems based on symptoms........................................................................................................................... 177
14.3.1
Symptom: The unit is NOT heating or cooling as expected........................................................................... 177
14.3.2 Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 178
14.3.3 Symptom: The system is making gurgling noises after commissioning ........................................................ 178
14.3.4 Symptom: The pump is blocked..................................................................................................................... 179
14.3.5 Symptom: The pump is making noise (cavitation)......................................................................................... 179
14.3.6 Symptom: The pressure relief valve opens.................................................................................................... 180
14.3.7 Symptom: The water pressure relief valve leaks........................................................................................... 180
14.3.8 Symptom: The space is NOT sufficiently heated at low outdoor temperatures........................................... 181