Daikin Altherma 3 R F Installer's Reference Manual page 3
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- Installer's reference manual (312 pages) ,
- User reference manual (64 pages) ,
- Installation manual (48 pages)
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ERGA04~08EAV3(A) + EHVH04+08SU18+23EA6V
Daikin Altherma 3 R F
4P629090-1 - 2020.08
7.1.2
Additional installation site requirements of the outdoor unit in cold climates............................................ 58
7.1.3
Installation site requirements of the indoor unit .......................................................................................... 59
7.2
Opening and closing the units ........................................................................................................................................ 62
7.2.1
About opening the units................................................................................................................................. 62
7.2.2
To open the outdoor unit............................................................................................................................... 62
7.2.3
To close the outdoor unit............................................................................................................................... 62
7.2.4
To open the indoor unit ................................................................................................................................. 62
7.2.5
To lower the switch box on the indoor unit .................................................................................................. 64
7.2.6
To close the indoor unit ................................................................................................................................. 65
7.3
Mounting the outdoor unit............................................................................................................................................. 65
7.3.1
About mounting the outdoor unit ................................................................................................................. 65
7.3.2
Precautions when mounting the outdoor unit .............................................................................................. 66
7.3.3
To provide the installation structure ............................................................................................................. 66
7.3.4
To install the outdoor unit ............................................................................................................................. 69
7.3.5
To provide drainage........................................................................................................................................ 70
7.3.6
To prevent the outdoor unit from falling over .............................................................................................. 71
7.4
Mounting the indoor unit ............................................................................................................................................... 72
7.4.1
About mounting the indoor unit.................................................................................................................... 72
7.4.2
Precautions when mounting the indoor unit................................................................................................. 72
7.4.3
To install the indoor unit ................................................................................................................................ 72
7.4.4
To connect the drain hose to the drain ......................................................................................................... 73
8.1
Preparing refrigerant piping ........................................................................................................................................... 75
8.1.1
Refrigerant piping requirements.................................................................................................................... 75
8.1.2
Refrigerant piping insulation.......................................................................................................................... 76
8.2
Preparing water piping ................................................................................................................................................... 76
8.2.1
Water circuit requirements............................................................................................................................ 76
8.2.2
Formula to calculate the expansion vessel pre-pressure .............................................................................. 80
8.2.3
To check the water volume and flow rate ..................................................................................................... 80
8.2.4
Changing the pre-pressure of the expansion vessel...................................................................................... 82
8.2.5
To check the water volume: Examples .......................................................................................................... 83
8.3
Connecting the refrigerant piping .................................................................................................................................. 84
8.3.1
About connecting the refrigerant piping ....................................................................................................... 84
8.3.2
Precautions when connecting the refrigerant piping.................................................................................... 84
8.3.3
Guidelines when connecting the refrigerant piping...................................................................................... 85
8.3.4
Pipe bending guidelines ................................................................................................................................. 86
8.3.5
To flare the pipe end ...................................................................................................................................... 86
8.3.6
To braze the pipe end..................................................................................................................................... 87
8.3.7
Using the stop valve and service port............................................................................................................ 87
8.3.8
To connect the refrigerant piping to the outdoor unit ................................................................................. 89
8.3.9
To connect the refrigerant piping to the indoor unit .................................................................................... 89
8.4
Checking the refrigerant piping...................................................................................................................................... 90
8.4.1
About checking the refrigerant piping ........................................................................................................... 90
8.4.2
Precautions when checking the refrigerant piping........................................................................................ 90
8.4.3
To check for leaks ........................................................................................................................................... 91
8.4.4
To perform vacuum drying............................................................................................................................. 91
8.4.5
To insulate the refrigerant piping .................................................................................................................. 92
8.5
Charging refrigerant........................................................................................................................................................ 93
8.5.1
About charging refrigerant............................................................................................................................. 93
8.5.2
Precautions when charging refrigerant ......................................................................................................... 94
8.5.3
To determine the additional refrigerant amount .......................................................................................... 94
8.5.4
To determine the complete recharge amount .............................................................................................. 94
8.5.5
To charge additional refrigerant .................................................................................................................... 94
8.5.6
To fix the fluorinated greenhouse gases label............................................................................................... 95
8.6
Connecting water piping................................................................................................................................................. 95
8.6.1
About connecting the water piping ............................................................................................................... 95
8.6.2
Precautions when connecting the water piping............................................................................................ 96
8.6.3
To connect the water piping .......................................................................................................................... 96
8.6.4
To connect the water piping for domestic hot water.................................................................................... 98
8.6.5
To connect the recirculation piping ............................................................................................................... 101
8.6.6
To fill the water circuit ................................................................................................................................... 101
8.6.7
To fill the domestic hot water tank................................................................................................................ 101
8.6.8
To insulate the water piping .......................................................................................................................... 102
9.1
About connecting the electrical wiring .......................................................................................................................... 103
9.1.1
Precautions when connecting the electrical wiring....................................................................................... 104
9.1.2
Guidelines when connecting the electrical wiring......................................................................................... 105
9.1.3
Specifications of standard wiring components.............................................................................................. 106
Table of contents
75
103
Installer reference guide
3
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