Daikin Altherma 3 H HT EPRA18DAW1, Installer'S Reference Manual

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Table of contents
Installer reference guide
3
EPRA14~W1 + ET9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01
6.2.3 To remove the transportation stay ................................................................................................................ 49
6.2.4 To close the outdoor unit............................................................................................................................... 49
6.2.5 To open the indoor unit ................................................................................................................................. 50
6.2.6 To lower the switch box on the indoor unit .................................................................................................. 52
6.2.7 To close the indoor unit ................................................................................................................................. 53
6.3 Mounting the outdoor unit............................................................................................................................................. 53
6.3.1
About mounting the outdoor unit ................................................................................................................. 53
6.3.2 Precautions when mounting the outdoor unit .............................................................................................. 53
6.3.3 To provide the installation structure ............................................................................................................. 53
6.3.4 To install the outdoor unit ............................................................................................................................. 54
6.3.5 To provide drainage........................................................................................................................................ 55
6.3.6 To install the discharge grille.......................................................................................................................... 57
6.3.7 To remove the discharge grille, and put the grille in safety position............................................................ 58
6.4 Mounting the indoor unit ............................................................................................................................................... 60
6.4.1
About mounting the indoor unit.................................................................................................................... 60
6.4.2 Precautions when mounting the indoor unit................................................................................................. 60
6.4.3 To install the indoor unit ................................................................................................................................ 60
6.4.4 To connect the drain hose to the drain ......................................................................................................... 61
7 Piping installation 63
7.1 Preparing water piping ................................................................................................................................................... 63
7.1.1
Water circuit requirements............................................................................................................................ 63
7.1.2 Formula to calculate the expansion vessel pre-pressure .............................................................................. 65
7.1.3 To check the water volume and flow rate ..................................................................................................... 65
7.1.4 Changing the pre-pressure of the expansion vessel...................................................................................... 68
7.1.5 To check the water volume: Examples .......................................................................................................... 68
7.2 Connecting water piping................................................................................................................................................. 69
7.2.1
About connecting the water piping ............................................................................................................... 69
7.2.2 Precautions when connecting the water piping............................................................................................ 69
7.2.3 To connect the water piping .......................................................................................................................... 69
7.2.4 To connect the recirculation piping ............................................................................................................... 72
7.2.5 To fill the water circuit ................................................................................................................................... 72
7.2.6 To protect the water circuit against freezing ................................................................................................ 73
7.2.7 To fill the domestic hot water tank................................................................................................................ 76
7.2.8 To insulate the water piping .......................................................................................................................... 76
8 Electrical installation 78
8.1 About connecting the electrical wiring .......................................................................................................................... 78
8.1.1
Precautions when connecting the electrical wiring....................................................................................... 78
8.1.2 Guidelines when connecting the electrical wiring......................................................................................... 79
8.1.3 About electrical compliance........................................................................................................................... 80
8.1.4 About preferential kWh rate power supply................................................................................................... 80
8.1.5 Overview of electrical connections except external actuators ..................................................................... 81
8.2 Connections to the outdoor unit.................................................................................................................................... 82
8.2.1
To connect the electrical wiring to the outdoor unit .................................................................................... 82
8.2.2 To reposition the air thermistor on the outdoor unit ................................................................................... 88
8.3 Connections to the indoor unit ...................................................................................................................................... 89
8.3.1
To connect the main power supply................................................................................................................ 92
8.3.2 To connect the backup heater power supply ................................................................................................ 94
8.3.3 To connect the shut-off valve ........................................................................................................................ 96
8.3.4 To connect the electricity meters .................................................................................................................. 97
8.3.5 To connect the domestic hot water pump .................................................................................................... 98
8.3.6 To connect the alarm output ......................................................................................................................... 99
8.3.7 To connect the space cooling/heating ON/OFF output................................................................................. 100
8.3.8 To connect the changeover to external heat source..................................................................................... 101
8.3.9 To connect the power consumption digital inputs........................................................................................ 102
8.3.10 To connect the safety thermostat (normally closed contact) ....................................................................... 103
8.4 After connecting the electrical wiring to the indoor unit .............................................................................................. 105
9 Configuration 107
9.1 Overview: Configuration................................................................................................................................................. 107
9.1.1
To access the most used commands ............................................................................................................. 108
9.2 Configuration wizard....................................................................................................................................................... 110
9.3 Possible screens .............................................................................................................................................................. 111
9.3.1
Possible screens: Overview ............................................................................................................................ 111
9.3.2 Home screen................................................................................................................................................... 112
9.3.3 Main menu screen.......................................................................................................................................... 115
9.3.4 Menu screen................................................................................................................................................... 116
9.3.5 Setpoint screen............................................................................................................................................... 116
9.3.6 Detailed screen with values ........................................................................................................................... 117