Daikin EHVH08SU23EA6V [3/268] Table of contents

Daikin EHVH08SU23EA6V [3/268] Table of contents
Table of contents
Installer reference guide
3
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 Piping installation 75
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 Electrical installation 103
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

Содержание

Скачать