Daikin Altherma 3 H MT F Installer's Reference Manual page 3
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- Installer's reference manual (276 pages) ,
- Installation manual (48 pages) ,
- User reference manual (68 pages)
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EPRA08~12EAV3+W1 + ETVH12SU18+23EA6V
Daikin Altherma 3 H MT F
4P644482-1 - 2021.03
7.1.1
Installation site requirements of the outdoor unit........................................................................................ 64
7.1.2
Additional installation site requirements of the outdoor unit in cold climates............................................ 66
7.1.3
Installation site requirements of the indoor unit .......................................................................................... 66
7.2
Opening and closing the units ........................................................................................................................................ 68
7.2.1
About opening the units................................................................................................................................. 68
7.2.2
To open the outdoor unit............................................................................................................................... 68
7.2.3
To remove the transportation stay ................................................................................................................ 68
7.2.4
To close the outdoor unit............................................................................................................................... 69
7.2.5
To open the indoor unit ................................................................................................................................. 69
7.2.6
To lower the switch box on the indoor unit .................................................................................................. 71
7.2.7
To close the indoor unit ................................................................................................................................. 72
7.3
Mounting the outdoor unit............................................................................................................................................. 72
7.3.1
About mounting the outdoor unit ................................................................................................................. 72
7.3.2
Precautions when mounting the outdoor unit .............................................................................................. 73
7.3.3
To provide the installation structure ............................................................................................................. 73
7.3.4
To install the outdoor unit ............................................................................................................................. 74
7.3.5
To provide drainage........................................................................................................................................ 75
7.3.6
To install the discharge grille.......................................................................................................................... 76
7.3.7
To remove the discharge grille, and put the grille in safety position............................................................ 78
7.4
Mounting the indoor unit ............................................................................................................................................... 80
7.4.1
About mounting the indoor unit.................................................................................................................... 80
7.4.2
Precautions when mounting the indoor unit................................................................................................. 80
7.4.3
To install the indoor unit ................................................................................................................................ 80
7.4.4
To connect the drain hose to the drain ......................................................................................................... 81
8.1
Preparing water piping ................................................................................................................................................... 82
8.1.1
Water circuit requirements............................................................................................................................ 82
8.1.2
Formula to calculate the expansion vessel pre-pressure .............................................................................. 86
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 .......................................................................................................... 89
8.2
Connecting water piping................................................................................................................................................. 89
8.2.1
About connecting the water piping ............................................................................................................... 89
8.2.2
Precautions when connecting the water piping............................................................................................ 90
8.2.3
To connect the water piping .......................................................................................................................... 90
8.2.4
To connect the water piping for domestic hot water.................................................................................... 93
8.2.5
To connect the recirculation piping ............................................................................................................... 96
8.2.6
To fill the water circuit ................................................................................................................................... 96
8.2.7
To protect the water circuit against freezing ................................................................................................ 96
8.2.8
To fill the domestic hot water tank................................................................................................................ 100
8.2.9
To insulate the water piping .......................................................................................................................... 100
9.1
About connecting the electrical wiring .......................................................................................................................... 101
9.1.1
Precautions when connecting the electrical wiring....................................................................................... 101
9.1.2
Guidelines when connecting the electrical wiring......................................................................................... 102
9.1.3
About electrical compliance........................................................................................................................... 104
9.1.4
Specifications of standard wiring components.............................................................................................. 104
9.1.5
About preferential kWh rate power supply................................................................................................... 104
9.1.6
Overview of electrical connections except external actuators ..................................................................... 105
9.2
Connections to the outdoor unit.................................................................................................................................... 105
9.2.1
To connect the electrical wiring to the outdoor unit .................................................................................... 106
9.2.2
To reposition the air thermistor on the outdoor unit ................................................................................... 112
9.3
Connections to the indoor unit ...................................................................................................................................... 113
9.3.1
To connect the main power supply................................................................................................................ 116
9.3.2
To connect the backup heater power supply ................................................................................................ 118
9.3.3
To connect the shut-off valve ........................................................................................................................ 121
9.3.4
To connect the electricity meters .................................................................................................................. 122
9.3.5
To connect the domestic hot water pump .................................................................................................... 123
9.3.6
To connect the alarm output ......................................................................................................................... 124
9.3.7
To connect the space cooling/heating ON/OFF output................................................................................. 125
9.3.8
To connect the changeover to external heat source..................................................................................... 126
9.3.9
To connect the power consumption digital inputs........................................................................................ 127
9.3.10
To connect the safety thermostat (normally closed contact) ....................................................................... 128
9.3.11
To connect a Smart Grid................................................................................................................................. 129
9.3.12
To connect the WLAN cartridge (delivered as accessory)............................................................................. 133
9.4
After connecting the electrical wiring to the indoor unit .............................................................................................. 133
Table of contents
82
101
134
Installer reference guide
3
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