Daikin Altherma EHY2KOMB28AA, Installer'S Reference Manual

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Table of contents
Installer reference guide
2
EJHA EHY32AA
Daikin Altherma Hybrid hydrosplit heat pump
4P531180-1 – 2018.06
Table of contents
1 General safety precautions 3
1.1 About the documentation .......................................................... 3
1.1.1 Meaning of warnings and symbols.............................. 3
1.2 For the installer.......................................................................... 4
1.2.1 General ....................................................................... 4
1.2.2 Installation site ............................................................ 4
1.2.3 Refrigerant .................................................................. 5
1.2.4 Brine............................................................................ 5
1.2.5 Water .......................................................................... 6
1.2.6 Electrical ..................................................................... 6
1.2.7 Gas ............................................................................. 7
1.2.8 Gas exhaust................................................................ 7
1.2.9 Local legislation .......................................................... 7
2 About the product 8
3 About the documentation 8
3.1 About this document.................................................................. 8
3.2 Installer reference guide at a glance ......................................... 8
4 About the box 9
4.1 Overview: About the box ........................................................... 9
4.2 Outdoor unit............................................................................... 9
4.2.1 To unpack the outdoor unit ......................................... 9
4.2.2 To handle the outdoor unit .......................................... 9
4.2.3 To remove the accessories from the outdoor unit....... 9
4.3 Gas boiler .................................................................................. 9
4.3.1 To unpack the gas boiler............................................. 9
4.3.2 To remove the accessories from the gas boiler .......... 10
5 About the system 10
5.1 Possible system layouts ............................................................ 10
5.1.1 Dedicated gas boiler ................................................... 11
5.1.2 Third-party gas boiler .................................................. 11
5.2 Freeze protection ...................................................................... 12
5.2.1 Glycol or freeze protection valves............................... 12
5.2.2 Bottom plate heater..................................................... 12
6 About the units and options 12
6.1 Overview: About the units and options...................................... 12
6.2 Identification .............................................................................. 12
6.2.1 Identification label: Outdoor unit ................................. 12
6.2.2 Identification label: Gas boiler..................................... 12
6.3 Combining units and options ..................................................... 13
6.3.1 Possible combinations of outdoor unit, gas boiler and
domestic hot water tank .............................................. 13
6.3.2 Possible options for the outdoor unit........................... 13
6.3.3 Possible options for the gas boiler .............................. 14
7 Application guidelines 17
7.1 Overview: Application guidelines............................................... 17
7.2 Setting up the space heating system – In case of dedicated
gas boiler ...................................................................................
17
7.2.1 Single room................................................................. 18
7.2.2 Multiple rooms – One LWT zone ................................ 19
7.3 Setting up the space heating system – In case of third-party
gas boiler ...................................................................................
21
7.3.1 Single room................................................................. 21
7.3.2 Multiple rooms – One LWT zone ................................ 21
7.4 Setting up the domestic hot water tank ..................................... 22
7.4.1 System layout – Standalone DHW tank...................... 22
7.4.2 Selecting the volume and desired temperature for
the DHW tank.............................................................. 22
7.4.3 Setup and configuration – DHW tank.......................... 23
7.4.4 DHW pump for instant hot water................................. 23
7.4.5 DHW pump for disinfection ......................................... 23
7.5 Setting up the energy metering ................................................. 23
7.5.1 Consumed energy........................................................ 23
7.6 Setting up the power consumption control ................................. 24
7.6.1 Permanent power limitation ......................................... 24
7.7 Setting up an external temperature sensor ................................ 24
8 Preparation 24
8.1 Overview: Preparation ................................................................ 24
8.2 Preparing the installation site ..................................................... 24
8.2.1 Installation site requirements of the outdoor unit ......... 25
8.2.2 Additional installation site requirements of the
outdoor unit in cold climates ........................................ 26
8.3 Preparing water piping ............................................................... 26
8.3.1 Water piping lengths and height difference ................. 26
8.3.2 Water circuit requirements ........................................... 27
8.3.3 Formula to calculate the expansion vessel pre-
pressure ....................................................................... 28
8.3.4 To check the water volume and flow rate .................... 28
8.3.5 Changing the pre-pressure of the expansion vessel.... 29
8.4 Preparing electrical wiring .......................................................... 29
8.4.1 About preparing electrical wiring.................................. 29
8.4.2 Overview of electrical connections except external
actuators ...................................................................... 29
8.4.3 Overview of electrical connections for external and
internal actuators ......................................................... 29
9 Installation 30
9.1 Overview: Installation ................................................................. 30
9.2 Opening the units ....................................................................... 30
9.2.1 About opening the units ............................................... 30
9.2.2 To open the outdoor unit.............................................. 30
9.2.3 To open the gas boiler ................................................. 31
9.2.4 To open the switch box cover of the gas boiler............ 31
9.3 Mounting the outdoor unit........................................................... 31
9.3.1 About mounting the outdoor unit.................................. 31
9.3.2 Precautions when mounting the outdoor unit............... 31
9.3.3 To provide the installation structure ............................. 31
9.3.4 To install the outdoor unit............................................. 32
9.3.5 To provide drainage ..................................................... 32
9.3.6 To prevent the outdoor unit from falling over ............... 33
9.4 Mounting the gas boiler .............................................................. 33
9.4.1 To install the gas boiler ................................................ 33
9.4.2 To install the condensate trap...................................... 34
9.5 Condensate pipe work................................................................ 34
9.5.1 Internal connections..................................................... 34
9.5.2 External connections.................................................... 35
9.6 Connecting the water piping ....................................................... 35
9.6.1 About connecting the water piping............................... 35
9.6.2 Precautions when connecting the water piping............ 35
9.6.3 Connecting the water piping of the outdoor unit .......... 35
9.6.4 Connecting the water piping of the gas boiler.............. 36
9.6.5 To protect the water circuit against freezing ................ 37
9.6.6 To fill the space heating circuit..................................... 39
9.6.7 To fill the domestic water circuit of the gas boiler ........ 40
9.6.8 To fill the domestic hot water tank ............................... 40
9.6.9 To insulate the water piping ......................................... 40
9.7 Connecting the electrical wiring.................................................. 40
9.7.1 About connecting the electrical wiring.......................... 40
9.7.2 Precautions when connecting the electrical wiring ...... 41
9.7.3 Guidelines when connecting the electrical wiring ........ 41
9.7.4 In case of dedicated gas boiler .................................... 42
9.7.5 In case of third-party gas boiler.................................... 44
9.8 Connecting the gas piping .......................................................... 46
9.8.1 To connect the gas pipe............................................... 46
9.9 Connecting the boiler to the flue gas system ............................. 47
9.9.1 To change the gas boiler to 80/125 concentric
connection.................................................................... 47
9.9.2 To change the 60/100 concentric connection to a
dual pipe connection .................................................... 47
9.9.3 Calculate the total piping length................................... 48
9.9.4 Appliance categories and pipe lengths ........................ 48
9.9.5 Applicable materials..................................................... 51