Table of contents
Installer reference guide
4
EVLQ05+08CA + EHYHBH05A + EHYHBH/X08A + EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1G – 2022.09
9.1 About connecting the electrical wiring .......................................................................................................................... 110
9.1.1 Precautions when connecting the electrical wiring....................................................................................... 111
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 111
9.1.3 Overview of electrical connections except external actuators ..................................................................... 113
9.1.4 Overview of electrical connections for external and internal actuators....................................................... 114
9.1.5 About preferential kWh rate power supply................................................................................................... 115
9.2 Connections to the outdoor unit.................................................................................................................................... 116
9.2.1 To connect the electrical wiring to the outdoor unit .................................................................................... 116
9.3 Connections to the indoor unit ...................................................................................................................................... 117
9.3.1 To connect the electrical wiring to the indoor unit....................................................................................... 117
9.3.2 To connect the main power supply of the indoor unit.................................................................................. 118
9.3.3 To connect the main power supply of the gas boiler .................................................................................... 120
9.3.4 To connect the communication cable between gas boiler and indoor unit ................................................. 120
9.3.5 To connect the user interface ........................................................................................................................ 122
9.3.6 To connect the shut-off valve ........................................................................................................................ 124
9.3.7 To connect the electrical meter..................................................................................................................... 125
9.3.8 To connect the gas meter .............................................................................................................................. 125
9.3.9 To connect the domestic hot water pump .................................................................................................... 125
9.3.10 To connect the alarm output ......................................................................................................................... 126
9.3.11 To connect the space cooling/heating ON/OFF output................................................................................. 126
9.3.12 To connect the power consumption digital inputs........................................................................................ 127
9.3.13 To connect the safety thermostat (normally closed contact) ....................................................................... 127
10 Configuration 129
10.1 Indoor unit ...................................................................................................................................................................... 129
10.1.1 Overview: Configuration ................................................................................................................................ 129
10.1.2 Basic configuration ......................................................................................................................................... 134
10.1.3 Advanced configuration/optimisation ........................................................................................................... 154
10.1.4 Menu structure: Overview user settings ....................................................................................................... 177
10.1.5 Menu structure: Overview installer settings ................................................................................................. 179
10.2 Gas boiler ........................................................................................................................................................................ 180
10.2.1 Overview: Configuration ................................................................................................................................ 180
10.2.2 Basic configuration ......................................................................................................................................... 180
11 Operation 190
11.1 Overview: Operation....................................................................................................................................................... 190
11.2 Heating............................................................................................................................................................................ 190
11.3 Domestic hot water ........................................................................................................................................................ 190
11.3.1 Flow resistance graph for appliance domestic hot water circuit .................................................................. 191
11.4 Operation modes ............................................................................................................................................................ 191
12 Commissioning 194
12.1 Overview: Commissioning .............................................................................................................................................. 194
12.2 Precautions when commissioning.................................................................................................................................. 195
12.3 Checklist before commissioning..................................................................................................................................... 195
12.4 Checklist during commissioning ..................................................................................................................................... 196
12.4.1 To check the minimum flow rate ................................................................................................................... 197
12.4.2 Air purge function........................................................................................................................................... 197
12.4.3 To perform a test run ..................................................................................................................................... 199
12.4.4 To perform an actuator test run .................................................................................................................... 200
12.4.5 Underfloor heating screed dryout ................................................................................................................. 201
12.4.6 To perform a gas pressure test ...................................................................................................................... 204
12.4.7 To perform a test run on the gas boiler......................................................................................................... 204
13 Hand-over to the user 206
14 Maintenance and service 207
14.1 Maintenance safety precautions.................................................................................................................................... 207
14.1.1 Opening the indoor unit ................................................................................................................................. 207
14.2 Checklist for yearly maintenance of the outdoor unit................................................................................................... 207
14.3 Checklist for yearly maintenance of the indoor unit ..................................................................................................... 208
14.4 To disassemble the gas boiler......................................................................................................................................... 209
14.5 To clean the inside of the gas boiler............................................................................................................................... 212
14.6 To assemble the gas boiler ............................................................................................................................................. 213
15 Troubleshooting 215
15.1 Overview: Troubleshooting ............................................................................................................................................ 215
15.2 Precautions when troubleshooting ................................................................................................................................ 215
15.3 Solving problems based on symptoms........................................................................................................................... 216
15.3.1 Symptom: The unit is NOT heating or cooling as expected........................................................................... 216
15.3.2 Symptom: The compressor does NOT start (space heating or domestic water heating) ............................ 217
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