Table of contents
Installer reference guide
2
EPRA08~12EAV3+W1 + ETSH/X(B)12P50EG
Daikin Altherma 3 H MT ECH₂O
4P759877-1 – 2024.03
Table of contents
1 About the documentation 6
1.1 About this document...................................................................................................................................................... 6
1.2 Meaning of warnings and symbols ................................................................................................................................ 7
1.3 Installer reference guide at a glance.............................................................................................................................. 8
2 General safety precautions 10
2.1 For the installer .............................................................................................................................................................. 10
2.1.1 General........................................................................................................................................................... 10
2.1.2 Installation site............................................................................................................................................... 11
2.1.3 Refrigerant — in case of R410A or R32......................................................................................................... 11
2.1.4 Water ............................................................................................................................................................. 13
2.1.5 Electrical......................................................................................................................................................... 13
3 Specific installer safety instructions 16
4 About the box 22
4.1 Outdoor unit................................................................................................................................................................... 22
4.1.1 To handle the outdoor unit ........................................................................................................................... 22
4.1.2 To unpack the outdoor unit........................................................................................................................... 23
4.1.3 To remove the accessories from the outdoor unit ....................................................................................... 24
4.2 Indoor unit...................................................................................................................................................................... 25
4.2.1 To unpack the indoor unit ............................................................................................................................. 25
4.2.2 To remove the accessories from the indoor unit.......................................................................................... 26
4.2.3 To handle the indoor unit.............................................................................................................................. 26
5 About the units and options 28
5.1 Identification .................................................................................................................................................................. 28
5.1.1 Identification label: Outdoor unit.................................................................................................................. 28
5.1.2 Identification label: Indoor unit..................................................................................................................... 29
5.2 Combining units and options ......................................................................................................................................... 29
5.2.1 Possible combinations of indoor unit and outdoor unit............................................................................... 29
5.2.2 Possible options for the outdoor unit ........................................................................................................... 30
5.2.3 Possible options for the indoor unit.............................................................................................................. 30
6 Application guidelines 34
6.1 Overview: Application guidelines................................................................................................................................... 34
6.2 Setting up the space heating/cooling system................................................................................................................ 35
6.2.1 Single room .................................................................................................................................................... 36
6.2.2 Multiple rooms – OneLWT zone................................................................................................................... 40
6.2.3 Multiple rooms – Two LWT zones ................................................................................................................. 45
6.3 Setting up bivalent heat sources.................................................................................................................................... 49
6.3.1 Setting up a direct auxiliary heat source for space heating.......................................................................... 49
6.3.2 Setting up an indirect auxiliary heat source for domestic hot water and space heating ............................ 52
6.3.3 Setting up a solar system via drainback connection..................................................................................... 53
6.3.4 Setting up a solar system via bivalent heat exchanger................................................................................. 54
6.3.5 Setting up an electric backup heater ............................................................................................................ 55
6.4 Setting up the storage tank............................................................................................................................................ 56
6.4.1 System layout – Integrated storage tank ...................................................................................................... 56
6.4.2 Selecting the volume and desired temperature for the storage tank.......................................................... 56
6.4.3 Setup and configuration – storage tank........................................................................................................ 57
6.4.4 DHW pump for instant hot water.................................................................................................................. 58
6.4.5 DHW pump for disinfection........................................................................................................................... 58
6.5 Setting up the energy metering ..................................................................................................................................... 59
6.5.1 Produced heat................................................................................................................................................ 59
6.5.2 Consumed energy.......................................................................................................................................... 60
6.5.3 Normal kWh rate power supply .................................................................................................................... 60
6.5.4 Preferential kWh rate power supply ............................................................................................................. 62
6.6 Setting up the power consumption control .................................................................................................................. 62
6.6.1 Permanent power limitation ......................................................................................................................... 63
6.6.2 Power limitation activated by digital inputs.................................................................................................. 64
6.6.3 Power limitation process ............................................................................................................................... 65
6.6.4 BBR16 power limitation................................................................................................................................. 66
6.7 Setting up an external temperature sensor................................................................................................................... 66
7 Unit installation 68
7.1 Preparing the installation site ........................................................................................................................................ 68
