Daikin EHFH03S18DA3V [4/204] Table of contents

Daikin EHFH03S18DA3V [4/204] Table of contents
Table of contents
Installer reference guide
4
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1A – 2020.05
8.3 Connections to the indoor unit ...................................................................................................................................... 90
8.3.1 To connect the main power supply................................................................................................................ 93
8.3.2 To connect the backup heater power supply ................................................................................................ 95
8.3.3 To connect the user interface ........................................................................................................................ 96
8.3.4 To connect the shut-off valve ........................................................................................................................ 98
8.3.5 To connect the electricity meters .................................................................................................................. 99
8.3.6 To connect the domestic hot water pump .................................................................................................... 100
8.3.7 To connect the alarm output ......................................................................................................................... 101
8.3.8 To connect the space cooling/heating ON/OFF output................................................................................. 102
8.3.9 To connect the changeover to external heat source..................................................................................... 103
8.3.10 To connect the power consumption digital inputs........................................................................................ 104
8.3.11 To connect the safety thermostat (normally closed contact) ....................................................................... 105
8.4 After connecting the electrical wiring to the indoor unit .............................................................................................. 106
9 Configuration 108
9.1 Overview: Configuration................................................................................................................................................. 108
9.1.1 To change the user permission level ............................................................................................................. 109
9.1.2 To access the most used commands ............................................................................................................. 110
9.1.3 To copy the system settings from the first to the second user interface ..................................................... 111
9.1.4 Quick wizard: Set the system layout after first power ON ............................................................................ 112
9.2 Basic configuration.......................................................................................................................................................... 113
9.2.1 Quick wizard: Language / time and date ....................................................................................................... 113
9.2.2 Quick wizard: Standard .................................................................................................................................. 113
9.2.3 Quick wizard: Options .................................................................................................................................... 116
9.2.4 Space heating/cooling control ....................................................................................................................... 120
9.2.5 Domestic hot water control ........................................................................................................................... 123
9.2.6 Contact/helpdesk number ............................................................................................................................. 124
9.3 Weather-dependent curve ............................................................................................................................................. 124
9.3.1 What is a weather-dependent curve? ........................................................................................................... 124
9.3.2 2-points curve................................................................................................................................................. 125
9.3.3 Using weather-dependent curves.................................................................................................................. 125
9.4 Advanced configuration/optimisation............................................................................................................................ 127
9.4.1 Space heating/cooling operation: advanced ................................................................................................. 127
9.4.2 Domestic hot water control: advanced ......................................................................................................... 136
9.4.3 Heat source settings....................................................................................................................................... 141
9.4.4 System settings............................................................................................................................................... 144
9.5 Menu structure: Overview user settings........................................................................................................................ 151
9.6 Menu structure: Overview installer settings.................................................................................................................. 152
10 Commissioning 154
10.1 Overview: Commissioning .............................................................................................................................................. 154
10.2 Precautions when commissioning.................................................................................................................................. 154
10.3 Checklist before commissioning..................................................................................................................................... 155
10.4 Checklist during commissioning ..................................................................................................................................... 156
10.4.1 To check the minimum flow rate ................................................................................................................... 156
10.4.2 Air purge function........................................................................................................................................... 156
10.4.3 To perform a test run ..................................................................................................................................... 157
10.4.4 To perform an actuator test run .................................................................................................................... 158
10.4.5 Underfloor heating screed dryout ................................................................................................................. 158
11 Hand-over to the user 162
12 Maintenance and service 163
12.1 Overview: Maintenance and service .............................................................................................................................. 163
12.2 Maintenance safety precautions.................................................................................................................................... 163
12.3 Checklist for yearly maintenance of the outdoor unit................................................................................................... 164
12.4 Checklist for yearly maintenance of the indoor unit ..................................................................................................... 164
12.4.1 To drain the domestic hot water tank ........................................................................................................... 166
12.5 About cleaning the water filter in case of trouble ......................................................................................................... 167
12.5.1 To remove the water filter ............................................................................................................................. 167
12.5.2 To clean the water filter in case of trouble.................................................................................................... 168
12.5.3 To install the water filter ................................................................................................................................ 169
13 Troubleshooting 170
13.1 Overview: Troubleshooting ............................................................................................................................................ 170
13.2 Precautions when troubleshooting ................................................................................................................................ 170
13.3 Solving problems based on symptoms........................................................................................................................... 171
13.3.1 Symptom: The unit is NOT heating or cooling as expected........................................................................... 171
13.3.2 Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 172
13.3.3 Symptom: The system is making gurgling noises after commissioning ........................................................ 172
13.3.4 Symptom: The pump is blocked..................................................................................................................... 173

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