Table Of Contents - Daikin VRV IV+ Installer And User Reference Manual

Table of contents

Installer and user reference guide
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Table of contents
1 General safety precautions
1.1 About the documentation ..............................................................................................................................................
1.1.1 Meaning of warnings and symbols ................................................................................................................
1.2 For the user.....................................................................................................................................................................
1.3 For the installer ...............................................................................................................................................................
1.3.1 General ...........................................................................................................................................................
1.3.2 Installation site ...............................................................................................................................................
1.3.3 Refrigerant......................................................................................................................................................
1.3.4 Brine................................................................................................................................................................ 11
1.3.5 Water .............................................................................................................................................................. 11
1.3.6 Electrical ......................................................................................................................................................... 11
2 About the documentation
2.1 About this document ...................................................................................................................................................... 14
For the installer
3 About the box
3.1 Overview: About the box ................................................................................................................................................ 16
3.2 To unpack the outdoor unit............................................................................................................................................ 17
3.3 To remove the accessories from the outdoor unit ........................................................................................................ 17
3.4 Accessory pipes: Diameters............................................................................................................................................ 18
3.5 To remove the transportation stay ................................................................................................................................ 18
4 About the units and options
4.1 Overview: About the units and options.......................................................................................................................... 20
4.2 Identification label: Outdoor unit................................................................................................................................... 20
4.3 About the outdoor unit................................................................................................................................................... 21
4.4 System layout.................................................................................................................................................................. 21
4.5 Combining units and options.......................................................................................................................................... 22
4.5.1 About combining units and options............................................................................................................... 22
4.5.2 Possible combinations of indoor units........................................................................................................... 22
4.5.3 Possible combinations of outdoor units ........................................................................................................ 22
4.5.4 Possible options for the outdoor unit ............................................................................................................ 23
5 Preparation
5.1 Overview: Preparation .................................................................................................................................................... 25
5.2 Preparing the installation site......................................................................................................................................... 25
5.2.1 Installation site requirements of the outdoor unit........................................................................................ 25
5.2.2 Additional installation site requirements of the outdoor unit in cold climates............................................ 27
5.2.3 Securing safety against refrigerant leaks ....................................................................................................... 28
5.3 Preparing refrigerant piping ........................................................................................................................................... 30
5.3.1 Refrigerant piping requirements.................................................................................................................... 30
5.3.2 To select the piping size ................................................................................................................................. 31
5.3.3 To select refrigerant branch kits .................................................................................................................... 33
5.3.4 About the piping length.................................................................................................................................. 35
5.3.5 Piping length: VRV DX only............................................................................................................................. 35
5.3.6 Piping length: VRV DX and Hydrobox............................................................................................................. 39
5.3.7 Piping length: VRV DX and RA DX................................................................................................................... 40
5.3.8 Multiple outdoor units: Possible layouts ....................................................................................................... 41
5.4 Preparing electrical wiring .............................................................................................................................................. 43
5.4.1 About preparing electrical wiring................................................................................................................... 43
5.4.2 About electrical compliance........................................................................................................................... 44
5.4.3 Safety device requirements ........................................................................................................................... 45
6 Installation
6.1 Overview: Installation ..................................................................................................................................................... 48
6.2 Opening the units ........................................................................................................................................................... 48
6.2.1 To open the outdoor unit............................................................................................................................... 48
6.2.2 To open the electrical component box of the outdoor unit ......................................................................... 49
6.3 Mounting the outdoor unit............................................................................................................................................. 49
6.3.1 To provide the installation structure ............................................................................................................. 49
6.4 Connecting the refrigerant piping .................................................................................................................................. 51
6.4.1 Precautions when connecting the refrigerant piping.................................................................................... 51
6.4.2 About connecting the refrigerant piping ....................................................................................................... 51
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VRV IV+ heat pump
4P546228-1A - 2019.10