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EHYKOMB33AA2
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Daikin EHYKOMB33AA2 [2/136] About the documentation 8

Table of contents

Installer reference guide

EVLQ05+08CAV3 + EHYHBH05AA + EHYHBH/X08AA +

EHYKOMB33AA

Daikin Altherma hybrid heat pump

4P355634-1A – 2016.02

Table of contents

1 General safety precautions 4

1.1 About the documentation .......................................................... 4

1.1.1 Meaning of warnings and symbols.............................. 4

1.2 For the installer.......................................................................... 4

1.2.1 General ....................................................................... 4

1.2.2 Installation site ............................................................ 5

1.2.3 Refrigerant .................................................................. 5

1.2.4 Water .......................................................................... 6

1.2.5 Electrical ..................................................................... 6

1.2.6 Gas ............................................................................. 6

1.2.7 Gas exhaust................................................................ 7

1.2.8 Local legislation .......................................................... 7

2 About the product 7

3 About the documentation 8

3.1 About this document.................................................................. 8

3.2 Installer reference guide at a glance ......................................... 8

4 About the box 8

4.1 Overview: About the box ........................................................... 8

4.2 Outdoor unit............................................................................... 9

4.2.1 To unpack the outdoor unit ......................................... 9

4.2.2 To remove the accessories from the outdoor unit....... 9

4.3 Indoor unit ................................................................................. 9

4.3.1 To unpack the indoor unit ........................................... 9

4.3.2 To remove the accessories from the indoor unit......... 10

4.4 Gas boiler .................................................................................. 10

4.4.1 To unpack the gas boiler............................................. 10

4.4.2 To remove the accessories from the gas boiler.......... 11

5 About the units and options 11

5.1 Overview: About the units and options...................................... 11

5.2 Identification .............................................................................. 11

5.2.1 Identification label: Outdoor unit ................................. 11

5.2.2 Identification label: Indoor unit .................................... 11

5.2.3 Identification label: gas boiler...................................... 12

5.3 Combining units and options ..................................................... 12

5.3.1 Possible options for the outdoor unit........................... 12

5.3.2 Possible options for the indoor unit............................. 12

5.3.3 Possible options for the gas boiler.............................. 14

5.3.4 Possible combinations of indoor unit and outdoor

unit .............................................................................. 16

5.3.5 Possible combinations of indoor unit and domestic

hot water tank ............................................................. 16

6 Preparation 16

6.1 Overview: Preparation............................................................... 16

6.2 Preparing installation site .......................................................... 16

6.2.1 Installation site requirements of the outdoor unit ........ 16

6.2.2 Additional installation site requirements of the

outdoor unit in cold climates ....................................... 17

6.2.3 Installation site requirements of the indoor unit .......... 17

6.3 Preparing refrigerant piping....................................................... 18

6.3.1 Refrigerant piping requirements.................................. 18

6.3.2 Refrigerant piping insulation ....................................... 18

6.4 Preparing water piping .............................................................. 18

6.4.1 Water circuit requirements .......................................... 18

6.4.2 Formula to calculate the expansion vessel pre-

pressure ...................................................................... 20

6.4.3 To check the water volume and flow rate ................... 20

6.4.4 Changing the pre-pressure of the expansion vessel... 21

6.4.5 To check the water volume: Examples ....................... 21

6.5 Preparing electrical wiring ......................................................... 21

6.5.1 About preparing electrical wiring................................. 21

6.5.2 About preferential kWh rate power supply.................. 22

6.5.3 Overview of electrical connections except external

actuators ...................................................................... 22

6.5.4 Overview of electrical connections for external and

internal actuators ......................................................... 22

7 Installation 23

7.1 Overview: Installation ................................................................. 23

7.2 Opening the units ....................................................................... 23

7.2.1 About opening the units ............................................... 23

7.2.2 To open the outdoor unit.............................................. 24

7.2.3 To open the switch box cover of the indoor unit .......... 24

7.2.4 To open the gas boiler ................................................. 24

7.2.5 To open the switch box cover of the gas boiler............ 24

7.3 Mounting the outdoor unit........................................................... 25

7.3.1 About mounting the outdoor unit.................................. 25

7.3.2 Precautions when mounting the outdoor unit............... 25

7.3.3 To provide the installation structure ............................. 25

7.3.4 To install the outdoor unit............................................. 26

7.3.5 To provide drainage ..................................................... 26

7.3.6 To prevent the outdoor unit from falling over ............... 27

7.4 Mounting the indoor unit............................................................. 27

7.4.1 About mounting the indoor unit.................................... 27

7.4.2 Precautions when mounting the indoor unit................. 27

7.4.3 To install the indoor unit............................................... 27

7.5 Mounting the gas boiler .............................................................. 28

7.5.1 To install the gas boiler ................................................ 28

7.5.2 To install the condensate trap...................................... 29

7.6 Condensate pipe work................................................................ 30

7.6.1 Internal connections..................................................... 30

7.6.2 External connections.................................................... 30

7.7 Connecting the refrigerant piping ............................................... 30

7.7.1 About connecting the refrigerant piping ....................... 30

7.7.2 Precautions when connecting the refrigerant piping.... 31

7.7.3 Guidelines when connecting the refrigerant piping...... 31

7.7.4 Pipe bending guidelines............................................... 31

7.7.5 To flare the pipe end .................................................... 31

7.7.6 To braze the pipe end .................................................. 32

7.7.7 Using the stop valve and service port .......................... 32

7.7.8 To connect the refrigerant piping to the outdoor unit ... 33

7.7.9 To connect the refrigerant piping to the indoor unit ..... 33

7.8 Checking the refrigerant piping .................................................. 33

7.8.1 About checking the refrigerant piping .......................... 33

7.8.2 Precautions when checking the refrigerant piping ....... 33

7.8.3 To check for leaks........................................................ 33

7.8.4 To perform vacuum drying ........................................... 34

7.9 Charging refrigerant ................................................................... 34

7.9.1 About charging refrigerant ........................................... 34

7.9.2 Precautions when charging refrigerant ........................ 34

7.9.3 To determine the additional refrigerant amount........... 35

7.9.4 To determine the complete recharge amount.............. 35

7.9.5 To charge refrigerant ................................................... 35

7.9.6 To fix the fluorinated greenhouse gases label ............. 35

7.10 Connecting the water piping....................................................... 35

7.10.1 About connecting the water piping............................... 35

7.10.2 Precautions when connecting the water piping............ 35

7.10.3 Connecting the water piping of the indoor unit............. 35

7.10.4 Connecting the water piping of the gas boiler.............. 36

7.10.5 To fill the space heating circuit..................................... 37

7.10.6 To fill the domestic water circuit of the gas boiler ........ 37

7.10.7 To fill the domestic hot water tank ............................... 37

7.10.8 To insulate the water piping ......................................... 37

7.11 Connecting the electrical wiring.................................................. 37

7.11.1 About connecting the electrical wiring.......................... 37

7.11.2 Precautions when connecting the electrical wiring ...... 37

7.11.3 Guidelines when connecting the electrical wiring ........ 38

7.11.4 To connect the electrical wiring on the outdoor unit..... 38

7.11.5 To connect the electrical wiring on the indoor unit....... 38

7.11.6 To connect the main power supply of the indoor unit .. 39

7.11.7 To connect the main power supply of the gas boiler.... 40

Daikin EHYKOMB33AA2 [2/136] About the documentation 8

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