Daikin EVLQ08CAV3 [3/252] Table of contents

Daikin EVLQ08CAV3 [3/252] Table of contents
Table of contents
Installer reference guide
3
EVLQ05+08CAV3 + EHYHBH05AF + EHYHBH/X08AF + EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1F – 2020.10
7.1 Overview: Installation ..................................................................................................................................................... 56
7.2 Opening the units ........................................................................................................................................................... 56
7.2.1 About opening the units................................................................................................................................. 56
7.2.2 To open the outdoor unit............................................................................................................................... 56
7.2.3 To open the switch box cover of the indoor unit .......................................................................................... 57
7.2.4 To open the gas boiler.................................................................................................................................... 58
7.2.5 To open the switch box cover of the gas boiler............................................................................................. 58
7.3 Mounting the outdoor unit............................................................................................................................................. 59
7.3.1 About mounting the outdoor unit ................................................................................................................. 59
7.3.2 Precautions when mounting the outdoor unit.............................................................................................. 59
7.3.3 To provide the installation structure ............................................................................................................. 59
7.3.4 To install the outdoor unit ............................................................................................................................. 62
7.3.5 To provide drainage........................................................................................................................................ 62
7.3.6 To prevent the outdoor unit from falling over .............................................................................................. 63
7.4 Mounting the indoor unit ............................................................................................................................................... 64
7.4.1 About mounting the indoor unit.................................................................................................................... 64
7.4.2 Precautions when mounting the indoor unit................................................................................................. 64
7.4.3 To install the indoor unit ................................................................................................................................ 64
7.5 Mounting the gas boiler.................................................................................................................................................. 66
7.5.1 To install the gas boiler .................................................................................................................................. 66
7.5.2 To install the condensate trap ....................................................................................................................... 67
7.6 Condensate pipe work .................................................................................................................................................... 69
7.6.1 Internal connections....................................................................................................................................... 69
7.6.2 External connections ...................................................................................................................................... 70
7.7 Connecting the refrigerant piping .................................................................................................................................. 70
7.7.1 About connecting the refrigerant piping ....................................................................................................... 70
7.7.2 Precautions when connecting the refrigerant piping.................................................................................... 71
7.7.3 Guidelines when connecting the refrigerant piping...................................................................................... 72
7.7.4 Pipe bending guidelines ................................................................................................................................. 72
7.7.5 To flare the pipe end ...................................................................................................................................... 72
7.7.6 To braze the pipe end..................................................................................................................................... 73
7.7.7 Using the stop valve and service port............................................................................................................ 74
7.7.8 To connect the refrigerant piping to the outdoor unit ................................................................................. 75
7.7.9 To connect the refrigerant piping to the indoor unit .................................................................................... 76
7.8 Checking the refrigerant piping...................................................................................................................................... 76
7.8.1 About checking the refrigerant piping........................................................................................................... 76
7.8.2 Precautions when checking the refrigerant piping........................................................................................ 77
7.8.3 To check for leaks ........................................................................................................................................... 77
7.8.4 To perform vacuum drying............................................................................................................................. 78
7.9 Charging refrigerant........................................................................................................................................................ 79
7.9.1 About charging refrigerant............................................................................................................................. 79
7.9.2 Precautions when charging refrigerant ......................................................................................................... 80
7.9.3 To determine the additional refrigerant amount.......................................................................................... 80
7.9.4 To determine the complete recharge amount.............................................................................................. 80
7.9.5 To charge additional refrigerant .................................................................................................................... 80
7.9.6 To fix the fluorinated greenhouse gases label............................................................................................... 80
7.10 Connecting water piping................................................................................................................................................. 81
7.10.1 About connecting the water piping ............................................................................................................... 81
7.10.2 Precautions when connecting the water piping............................................................................................ 81
7.10.3 Connecting the water piping of the indoor unit............................................................................................ 82
7.10.4 Connecting the water piping of the gas boiler .............................................................................................. 83
7.10.5 To fill the space heating circuit ...................................................................................................................... 84
7.10.6 To fill the domestic water circuit of the gas boiler........................................................................................ 85
7.10.7 To fill the domestic hot water tank................................................................................................................ 85
7.10.8 To insulate the water piping .......................................................................................................................... 85
7.11 Connecting the electrical wiring..................................................................................................................................... 86
7.11.1 About connecting the electrical wiring.......................................................................................................... 86
7.11.2 Precautions when connecting the electrical wiring....................................................................................... 87
7.11.3 Guidelines when connecting the electrical wiring......................................................................................... 87
7.11.4 To connect the electrical wiring to the outdoor unit .................................................................................... 88
7.11.5 To connect the electrical wiring to the indoor unit....................................................................................... 88
7.11.6 To connect the main power supply of the indoor unit.................................................................................. 90
7.11.7 To connect the main power supply of the gas boiler .................................................................................... 91
7.11.8 To connect the communication cable between gas boiler and indoor unit ................................................. 92
7.11.9 To connect the user interface ........................................................................................................................ 94
7.11.10 To connect the shut-off valve ........................................................................................................................ 95
7.11.11 To connect the electrical meter..................................................................................................................... 96
7.11.12 To connect the gas meter .............................................................................................................................. 97
7.11.13 To connect the domestic hot water pump .................................................................................................... 97

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