Daikin Altherma 3 R W Installer's Reference Manual page 3
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- Installer's reference manual (296 pages) ,
- Installation manual (44 pages) ,
- User reference manual (60 pages)
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Daikin Altherma 3 R W
4P629085-1C - 2022.05
7.2
Opening and closing the units ........................................................................................................................................ 73
7.2.1
About opening the units................................................................................................................................. 73
7.2.2
To open the outdoor unit............................................................................................................................... 73
7.2.3
To close the outdoor unit............................................................................................................................... 74
7.2.4
To open the indoor unit ................................................................................................................................. 74
7.2.5
To close the indoor unit ................................................................................................................................. 76
7.3
Mounting the outdoor unit............................................................................................................................................. 76
7.3.1
About mounting the outdoor unit ................................................................................................................. 76
7.3.2
Precautions when mounting the outdoor unit .............................................................................................. 76
7.3.3
To provide the installation structure ............................................................................................................. 77
7.3.4
To install the outdoor unit ............................................................................................................................. 79
7.3.5
To provide drainage........................................................................................................................................ 80
7.3.6
To prevent the outdoor unit from falling over .............................................................................................. 82
7.4
Mounting the indoor unit ............................................................................................................................................... 83
7.4.1
About mounting the indoor unit.................................................................................................................... 83
7.4.2
Precautions when mounting the indoor unit................................................................................................. 83
7.4.3
To install the indoor unit ................................................................................................................................ 83
7.4.4
To connect the drain hose to the drain ......................................................................................................... 84
8.1
Preparing refrigerant piping ........................................................................................................................................... 86
8.1.1
Refrigerant piping requirements.................................................................................................................... 86
8.1.2
Refrigerant piping insulation.......................................................................................................................... 87
8.2
Connecting the refrigerant piping .................................................................................................................................. 87
8.2.1
About connecting the refrigerant piping ....................................................................................................... 87
8.2.2
Precautions when connecting the refrigerant piping.................................................................................... 88
8.2.3
Guidelines when connecting the refrigerant piping...................................................................................... 89
8.2.4
Pipe bending guidelines ................................................................................................................................. 89
8.2.5
To flare the pipe end ...................................................................................................................................... 89
8.2.6
To braze the pipe end..................................................................................................................................... 90
8.2.7
Using the stop valve and service port............................................................................................................ 91
8.2.8
To connect the refrigerant piping to the outdoor unit ................................................................................. 92
8.2.9
To connect the refrigerant piping to the indoor unit .................................................................................... 93
8.3
Checking the refrigerant piping...................................................................................................................................... 93
8.3.1
About checking the refrigerant piping ........................................................................................................... 93
8.3.2
Precautions when checking the refrigerant piping........................................................................................ 94
8.3.3
To check for leaks ........................................................................................................................................... 94
8.3.4
To perform vacuum drying............................................................................................................................. 95
8.3.5
To insulate the refrigerant piping .................................................................................................................. 96
8.4
Charging refrigerant........................................................................................................................................................ 96
8.4.1
About charging refrigerant............................................................................................................................. 96
8.4.2
Precautions when charging refrigerant ......................................................................................................... 97
8.4.3
To determine the additional refrigerant amount .......................................................................................... 97
8.4.4
To determine the complete recharge amount .............................................................................................. 98
8.4.5
To charge additional refrigerant .................................................................................................................... 98
8.4.6
To fix the fluorinated greenhouse gases label............................................................................................... 98
8.5
Preparing water piping ................................................................................................................................................... 99
8.5.1
Water circuit requirements............................................................................................................................ 99
8.5.2
Formula to calculate the expansion vessel pre-pressure .............................................................................. 102
8.5.3
To check the water volume and flow rate ..................................................................................................... 102
8.5.4
Changing the pre-pressure of the expansion vessel...................................................................................... 104
8.5.5
To check the water volume: Examples .......................................................................................................... 104
8.6
Connecting water piping................................................................................................................................................. 105
8.6.1
About connecting the water piping ............................................................................................................... 105
8.6.2
Precautions when connecting the water piping............................................................................................ 105
8.6.3
To connect the water piping .......................................................................................................................... 105
8.6.4
To fill the water circuit ................................................................................................................................... 107
8.6.5
To fill the domestic hot water tank................................................................................................................ 107
8.6.6
To insulate the water piping .......................................................................................................................... 107
9.1
About connecting the electrical wiring .......................................................................................................................... 108
9.1.1
Precautions when connecting the electrical wiring....................................................................................... 108
9.1.2
Guidelines when connecting the electrical wiring......................................................................................... 109
9.1.3
Specifications of standard wiring components.............................................................................................. 110
9.1.4
About electrical compliance........................................................................................................................... 111
9.1.5
About preferential kWh rate power supply................................................................................................... 111
9.1.6
Overview of electrical connections except external actuators ..................................................................... 112
9.2
Connections to the outdoor unit.................................................................................................................................... 112
9.2.1
To connect the electrical wiring to the outdoor unit .................................................................................... 112
Table of contents
86
108
Installer reference guide
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