Daikin Altherma 3 H HT EPRA16DAV3, Installer'S Reference Manual

Page: 3 / 260

Table of contents
Installer reference guide
3
EPRA14~W1 + ETBH/9W
Daikin Altherma 3 H HT W
4P587501-1B – 2020.10
6.1.3 Installation site requirements of the indoor unit .......................................................................................... 60
6.2 Opening and closing the units ........................................................................................................................................ 61
6.2.1
About opening the units................................................................................................................................. 61
6.2.2 To open the outdoor unit............................................................................................................................... 61
6.2.3 To remove the transportation stay ................................................................................................................ 62
6.2.4 To close the outdoor unit............................................................................................................................... 62
6.2.5 To open the indoor unit ................................................................................................................................. 63
6.2.6 To close the indoor unit ................................................................................................................................. 65
6.3 Mounting the outdoor unit............................................................................................................................................. 65
6.3.1
About mounting the outdoor unit ................................................................................................................. 65
6.3.2 Precautions when mounting the outdoor unit .............................................................................................. 65
6.3.3 To provide the installation structure ............................................................................................................. 66
6.3.4 To install the outdoor unit ............................................................................................................................. 67
6.3.5 To provide drainage........................................................................................................................................ 68
6.3.6 To install the discharge grille.......................................................................................................................... 69
6.3.7 To remove the discharge grille, and put the grille in safety position............................................................ 70
6.4 Mounting the indoor unit ............................................................................................................................................... 72
6.4.1
About mounting the indoor unit.................................................................................................................... 72
6.4.2 Precautions when mounting the indoor unit................................................................................................. 72
6.4.3 To install the indoor unit ................................................................................................................................ 72
6.4.4 To connect the drain hose to the drain ......................................................................................................... 74
7 Piping installation 75
7.1 Preparing water piping ................................................................................................................................................... 75
7.1.1
Water circuit requirements............................................................................................................................ 75
7.1.2 Formula to calculate the expansion vessel pre-pressure .............................................................................. 77
7.1.3 To check the water volume and flow rate ..................................................................................................... 78
7.1.4 Changing the pre-pressure of the expansion vessel...................................................................................... 80
7.1.5 To check the water volume: Examples .......................................................................................................... 80
7.2 Connecting water piping................................................................................................................................................. 81
7.2.1
About connecting the water piping ............................................................................................................... 81
7.2.2 Precautions when connecting the water piping............................................................................................ 81
7.2.3 To connect the water piping .......................................................................................................................... 81
7.2.4 To fill the water circuit ................................................................................................................................... 83
7.2.5 To protect the water circuit against freezing ................................................................................................ 83
7.2.6 To fill the domestic hot water tank................................................................................................................ 86
7.2.7 To insulate the water piping .......................................................................................................................... 86
8 Electrical installation 88
8.1 About connecting the electrical wiring .......................................................................................................................... 88
8.1.1
Precautions when connecting the electrical wiring....................................................................................... 88
8.1.2 Guidelines when connecting the electrical wiring......................................................................................... 89
8.1.3 About electrical compliance........................................................................................................................... 90
8.1.4 About preferential kWh rate power supply................................................................................................... 90
8.1.5 Overview of electrical connections except external actuators ..................................................................... 91
8.2 Connections to the outdoor unit.................................................................................................................................... 92
8.2.1
To connect the electrical wiring on the outdoor unit ................................................................................... 92
8.2.2 To reposition the air thermistor on the outdoor unit ................................................................................... 98
8.3 Connections to the indoor unit ...................................................................................................................................... 99
8.3.1
To connect the main power supply................................................................................................................ 102
8.3.2 To connect the backup heater power supply ................................................................................................ 105
8.3.3 To connect the shut-off valve (Heating/Cooling) .......................................................................................... 107
8.3.4 To connect the electricity meters .................................................................................................................. 108
8.3.5 To connect the domestic hot water pump .................................................................................................... 109
8.3.6 To connect the alarm output ......................................................................................................................... 110
8.3.7 To connect the space cooling/heating ON/OFF output................................................................................. 111
8.3.8 To connect the changeover to external heat source..................................................................................... 112
8.3.9 To connect the power consumption digital inputs........................................................................................ 113
8.3.10 To connect the safety thermostat (normally closed contact) ....................................................................... 114
9 Configuration 116
9.1 Overview: Configuration................................................................................................................................................. 116
9.1.1
To access the most used commands ............................................................................................................. 117
9.2 Configuration wizard....................................................................................................................................................... 119
9.3 Possible screens .............................................................................................................................................................. 120
9.3.1
Possible screens: Overview ............................................................................................................................ 120
9.3.2 Home screen................................................................................................................................................... 121
9.3.3 Main menu screen.......................................................................................................................................... 124
9.3.4 Menu screen................................................................................................................................................... 125
9.3.5 Setpoint screen............................................................................................................................................... 125