Daikin Altherma 3 H MT W - Page 3

Table of contents
Installer reference guide
3
EPRA08~12EAV3+W1 + ETBH/X12EF6V+9W
Daikin Altherma 3 H MT W
4P634885-1 – 2021.03
7.1.3 Installation site requirements of the indoor unit .......................................................................................... 68
7.2 Opening and closing the units ........................................................................................................................................ 69
7.2.1 About opening the units................................................................................................................................. 69
7.2.2 To open the outdoor unit............................................................................................................................... 69
7.2.3 To remove the transportation stay................................................................................................................ 70
7.2.4 To close the outdoor unit............................................................................................................................... 71
7.2.5 To open the indoor unit ................................................................................................................................. 71
7.2.6 To close the indoor unit ................................................................................................................................. 73
7.3 Mounting the outdoor unit............................................................................................................................................. 73
7.3.1 About mounting the outdoor unit ................................................................................................................. 73
7.3.2 Precautions when mounting the outdoor unit.............................................................................................. 74
7.3.3 To provide the installation structure ............................................................................................................. 74
7.3.4 To install the outdoor unit ............................................................................................................................. 75
7.3.5 To provide drainage........................................................................................................................................ 76
7.3.6 To install the discharge grille.......................................................................................................................... 77
7.3.7 To remove the discharge grille, and put the grille in safety position............................................................ 79
7.4 Mounting the indoor unit ............................................................................................................................................... 81
7.4.1 About mounting the indoor unit.................................................................................................................... 81
7.4.2 Precautions when mounting the indoor unit................................................................................................. 81
7.4.3 To install the indoor unit ................................................................................................................................ 81
7.4.4 To connect the drain hose to the drain ......................................................................................................... 82
8 Piping installation 83
8.1 Preparing water piping ................................................................................................................................................... 83
8.1.1 Water circuit requirements............................................................................................................................ 83
8.1.2 Formula to calculate the expansion vessel pre-pressure.............................................................................. 85
8.1.3 To check the water volume and flow rate ..................................................................................................... 86
8.1.4 Changing the pre-pressure of the expansion vessel...................................................................................... 88
8.1.5 To check the water volume: Examples .......................................................................................................... 88
8.2 Connecting water piping................................................................................................................................................. 89
8.2.1 About connecting the water piping ............................................................................................................... 89
8.2.2 Precautions when connecting the water piping............................................................................................ 89
8.2.3 To connect the water piping .......................................................................................................................... 89
8.2.4 To fill the water circuit ................................................................................................................................... 91
8.2.5 To protect the water circuit against freezing ................................................................................................ 91
8.2.6 To fill the domestic hot water tank................................................................................................................ 95
8.2.7 To insulate the water piping .......................................................................................................................... 95
9 Electrical installation 96
9.1 About connecting the electrical wiring .......................................................................................................................... 96
9.1.1 Precautions when connecting the electrical wiring....................................................................................... 96
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 97
9.1.3 About electrical compliance........................................................................................................................... 99
9.1.4 Specifications of standard wiring components.............................................................................................. 99
9.1.5 About preferential kWh rate power supply................................................................................................... 99
9.1.6 Overview of electrical connections except external actuators ..................................................................... 100
9.2 Connections to the outdoor unit.................................................................................................................................... 100
9.2.1 To connect the electrical wiring to the outdoor unit .................................................................................... 101
9.2.2 To reposition the air thermistor on the outdoor unit ................................................................................... 107
9.3 Connections to the indoor unit ...................................................................................................................................... 108
9.3.1 To connect the main power supply................................................................................................................ 111
9.3.2 To connect the backup heater power supply ................................................................................................ 114
9.3.3 To connect the shut-off valve ........................................................................................................................ 116
9.3.4 To connect the electricity meters .................................................................................................................. 117
9.3.5 To connect the domestic hot water pump .................................................................................................... 118
9.3.6 To connect the alarm output ......................................................................................................................... 119
9.3.7 To connect the space cooling/heating ON/OFF output................................................................................. 120
9.3.8 To connect the changeover to external heat source..................................................................................... 121
9.3.9 To connect the power consumption digital inputs........................................................................................ 122
9.3.10 To connect the safety thermostat (normally closed contact) ....................................................................... 123
9.3.11 To connect a Smart Grid................................................................................................................................. 124
9.3.12 To connect the WLAN cartridge (delivered as accessory)............................................................................. 128
10 Configuration 130
10.1 Overview: Configuration................................................................................................................................................. 130
10.1.1 To access the most used commands ............................................................................................................. 131
10.1.2 To connect the PC cable to the switch box.................................................................................................... 133
10.2 Configuration wizard....................................................................................................................................................... 133
10.3 Possible screens .............................................................................................................................................................. 135
10.3.1 Possible screens: Overview ............................................................................................................................ 135