Daikin EKHWET-BV3, Installer'S Reference Manual, Page: 2 / 120

Table of contents
Installer reference guide
2
E120B
R32 Split series – Domestic hot water tank
4P680077-1A – 2022.11
Table of contents
1 About this document 5
1.1 Meaning of warnings and symbols................................................................................................................................. 6
1.2 Installer reference guide at a glance .............................................................................................................................. 7
2 General safety precautions 9
2.1 For the installer ............................................................................................................................................................... 9
2.1.1 General ........................................................................................................................................................... 9
2.1.2 Installation site ............................................................................................................................................... 10
2.1.3 Refrigerant — in case of R410A or R32.......................................................................................................... 10
2.1.4 Water .............................................................................................................................................................. 12
2.1.5 Electrical ......................................................................................................................................................... 12
3 Specific installer safety instructions 15
4 About the box 20
4.1 Overview: About the box ................................................................................................................................................ 20
4.2 Indoor unit ...................................................................................................................................................................... 21
4.2.1
To unpack the indoor unit.............................................................................................................................. 21
4.2.2 To remove the accessories from the indoor unit .......................................................................................... 21
5 About the units and options 22
5.1 Identification ................................................................................................................................................................... 22
5.1.1
Identification label: Indoor unit ..................................................................................................................... 22
5.2 Possible options for the indoor unit ............................................................................................................................... 22
6 Application guidelines 23
6.1 Overview: Application guidelines ................................................................................................................................... 23
6.2 Setting up the domestic hot water tank......................................................................................................................... 23
6.2.1
System layout – Standalone DHW tank ......................................................................................................... 23
6.2.2 Selecting the volume and desired temperature for the DHW tank .............................................................. 24
6.2.3 Setup and configuration – DHW tank ............................................................................................................ 25
6.3 Setting up the power consumption control ................................................................................................................... 25
6.3.1
Permanent power limitation .......................................................................................................................... 26
6.3.2 Power limitation process................................................................................................................................ 26
7 Unit installation 28
7.1 Preparing the installation site......................................................................................................................................... 28
7.1.1
Installation site requirements of the indoor unit .......................................................................................... 28
7.1.2 Special requirements for R32 units................................................................................................................ 29
7.1.3 Installation patterns ....................................................................................................................................... 31
7.2 Opening and closing the units ........................................................................................................................................ 36
7.2.1
About opening the units................................................................................................................................. 36
7.2.2 To open the indoor unit ................................................................................................................................. 36
7.2.3 To close the indoor unit ................................................................................................................................. 37
7.3 Mounting the indoor unit ............................................................................................................................................... 37
7.3.1
About mounting the indoor unit.................................................................................................................... 37
7.3.2 Precautions when mounting the indoor unit................................................................................................. 37
7.3.3 To install the indoor unit ................................................................................................................................ 37
8 Piping installation 39
8.1 Preparing refrigerant piping ........................................................................................................................................... 39
8.1.1
Refrigerant piping requirements.................................................................................................................... 39
8.2 Connecting refrigerant piping......................................................................................................................................... 39
8.2.1
To connect the refrigerant piping to the indoor unit .................................................................................... 39
8.3 Preparing water piping ................................................................................................................................................... 40
8.3.1
Water circuit requirements............................................................................................................................ 40
8.4 Connecting water piping................................................................................................................................................. 42
8.4.1
About connecting the water piping ............................................................................................................... 42
8.4.2 Precautions when connecting the water piping............................................................................................ 42
8.4.3 To connect the water piping .......................................................................................................................... 42
8.4.4 To connect the recirculation piping ............................................................................................................... 43
8.4.5 To fill the domestic hot water tank................................................................................................................ 43
9 Electrical installation 45
9.1 About connecting the electrical wiring .......................................................................................................................... 45
9.1.1
Precautions when connecting the electrical wiring....................................................................................... 45
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 46