
Table of contents
Installer reference guide
3
EWSAH/X06UD
Daikin Altherma 3 WS
4P675765-1 – 2022.04
7.3 Mounting the indoor unit ............................................................................................................................................... 68
7.3.1 About mounting the indoor unit.................................................................................................................... 68
7.3.2 Precautions when mounting the indoor unit................................................................................................. 69
7.3.3 To install the indoor unit ................................................................................................................................ 69
7.3.4 To connect the drain hose to the drain ......................................................................................................... 70
8 Piping installation 71
8.1 Preparing piping.............................................................................................................................................................. 71
8.1.1 Circuit requirements....................................................................................................................................... 71
8.1.2 Formula to calculate the expansion vessel pre-pressure.............................................................................. 75
8.1.3 To check the water volume and flow rate of the space heating circuit and the central water loop circuit 76
8.1.4 Changing the pre-pressure of the expansion vessel...................................................................................... 77
8.2 Connecting the central water loop piping...................................................................................................................... 77
8.2.1 About connecting the central water loop piping........................................................................................... 77
8.2.2 Precautions when connecting the central water loop piping ....................................................................... 77
8.2.3 To connect the central water loop piping...................................................................................................... 78
8.2.4 To fill the central water loop circuit............................................................................................................... 79
8.2.5 To insulate the central water loop piping...................................................................................................... 79
8.3 Connecting water piping................................................................................................................................................. 79
8.3.1 About connecting the water piping ............................................................................................................... 79
8.3.2 Precautions when connecting the water piping............................................................................................ 80
8.3.3 To connect the water piping .......................................................................................................................... 80
8.3.4 To connect the water piping for domestic hot water.................................................................................... 81
8.3.5 To connect the recirculation piping ............................................................................................................... 84
8.3.6 To fill the space heating circuit ...................................................................................................................... 84
8.3.7 To fill the domestic hot water tank................................................................................................................ 85
8.3.8 To check for water leaks................................................................................................................................. 85
8.3.9 To insulate the water piping .......................................................................................................................... 85
9 Electrical installation 86
9.1 About connecting the electrical wiring .......................................................................................................................... 86
9.1.1 Precautions when connecting the electrical wiring....................................................................................... 86
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 87
9.1.3 About electrical compliance........................................................................................................................... 88
9.1.4 Safety device requirements ........................................................................................................................... 89
9.2 Overview of electrical connections for external and internal actuators ....................................................................... 89
9.2.1 To connect the main power supply................................................................................................................ 91
9.2.2 To connect the remote outdoor sensor......................................................................................................... 97
9.2.3 To connect the shut-off valve ........................................................................................................................ 98
9.2.4 To connect the electricity meters .................................................................................................................. 99
9.2.5 To connect the domestic hot water pump .................................................................................................... 100
9.2.6 To connect the alarm output ......................................................................................................................... 101
9.2.7 To connect the space cooling/heating ON/OFF output................................................................................. 102
9.2.8 To connect the changeover to external heat source..................................................................................... 104
9.2.9 To connect the power consumption digital inputs........................................................................................ 105
9.2.10 To connect the safety thermostat (normally closed contact) ....................................................................... 106
9.2.11 To connect the brine low pressure switch..................................................................................................... 107
9.2.12 To connect the thermostat for passive cooling ............................................................................................. 109
10 LAN adapter 110
10.1 About the LAN adapter................................................................................................................................................... 110
10.1.1 System layout ................................................................................................................................................. 111
10.1.2 System requirements ..................................................................................................................................... 113
10.1.3 On-site installation requirements .................................................................................................................. 113
10.2 Connecting the electrical wiring..................................................................................................................................... 114
10.2.1 Overview of electrical connections ................................................................................................................ 114
10.2.2 Router ............................................................................................................................................................. 116
10.2.3 Electricity meter ............................................................................................................................................. 117
10.2.4 Solar inverter/energy management system .................................................................................................. 119
10.3 Starting up the system.................................................................................................................................................... 122
10.4 Configuration – LAN adapter.......................................................................................................................................... 122
10.4.1 Overview: Configuration ................................................................................................................................ 122
10.4.2 Configuring the adapter for app control........................................................................................................ 123
10.4.3 Configuring the adapter for the Smart Grid application ............................................................................... 123
10.4.4 Updating software .......................................................................................................................................... 123
10.4.5 Configuration web interface .......................................................................................................................... 124
10.4.6 System information ........................................................................................................................................ 125
10.4.7 Factory reset................................................................................................................................................... 126
10.4.8 Network settings ............................................................................................................................................ 127
10.5 Smart Grid application.................................................................................................................................................... 129