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Daikin Altherma 3 M
4P620241-1B - 2022.05
7.3.2
To open the outdoor unit............................................................................................................................... 72
7.3.3
To close the outdoor unit............................................................................................................................... 72
8.1
Preparing water piping ................................................................................................................................................... 73
8.1.1
Water circuit requirements............................................................................................................................ 73
8.1.2
Formula to calculate the expansion vessel pre-pressure .............................................................................. 76
8.1.3
To check the water volume and flow rate ..................................................................................................... 76
8.1.4
Changing the pre-pressure of the expansion vessel...................................................................................... 79
8.1.5
To check the water volume: Examples .......................................................................................................... 79
8.2
Connecting water piping................................................................................................................................................. 80
8.2.1
About connecting the water piping ............................................................................................................... 80
8.2.2
Precautions when connecting the water piping............................................................................................ 81
8.2.3
To connect the water piping .......................................................................................................................... 81
8.2.4
To protect the water circuit against freezing ................................................................................................ 82
8.2.5
To fill the water circuit ................................................................................................................................... 85
8.2.6
To fill the domestic hot water tank................................................................................................................ 86
8.2.7
To insulate the water piping .......................................................................................................................... 86
9.1
About connecting the electrical wiring .......................................................................................................................... 87
9.1.1
Precautions when connecting the electrical wiring....................................................................................... 87
9.1.2
Guidelines when connecting the electrical wiring......................................................................................... 88
9.1.3
About electrical compliance........................................................................................................................... 89
9.1.4
About preferential kWh rate power supply................................................................................................... 89
9.1.5
Overview of electrical connections except external actuators ..................................................................... 90
9.2
Connections to the outdoor unit.................................................................................................................................... 91
9.2.1
To connect the electrical wiring to the outdoor unit .................................................................................... 96
9.2.2
To connect the main power supply................................................................................................................ 97
9.2.3
To connect the backup heater power supply ................................................................................................ 100
9.2.4
External backup heater kit ............................................................................................................................. 101
9.2.5
To connect the user interface ........................................................................................................................ 108
9.2.6
To connect the shut-off valve ........................................................................................................................ 111
9.2.7
To connect the electricity meters .................................................................................................................. 112
9.2.8
To connect the domestic hot water pump .................................................................................................... 113
9.2.9
To connect the alarm output ......................................................................................................................... 113
9.2.10
To connect the space cooling/heating ON/OFF output................................................................................. 114
9.2.11
To connect the changeover to external heat source..................................................................................... 115
9.2.12
To connect the power consumption digital inputs........................................................................................ 116
9.2.13
To connect the safety thermostat (normally closed contact) ....................................................................... 117
9.2.14
To connect a Smart Grid................................................................................................................................. 118
10.1
To check the insulation resistance of the compressor .................................................................................................. 122
11.1
Overview: Configuration................................................................................................................................................. 123
11.1.1
To access the most used commands ............................................................................................................. 124
11.1.2
To connect the PC cable to the switch box.................................................................................................... 126
11.2
Configuration wizard....................................................................................................................................................... 127
11.3
Possible screens .............................................................................................................................................................. 128
11.3.1
Possible screens: Overview ............................................................................................................................ 128
11.3.2
Home screen................................................................................................................................................... 129
11.3.3
Main menu screen.......................................................................................................................................... 131
11.3.4
Menu screen................................................................................................................................................... 132
11.3.5
Setpoint screen............................................................................................................................................... 132
11.3.6
Detailed screen with values ........................................................................................................................... 133
11.4
Preset values and schedules........................................................................................................................................... 134
11.4.1
Using preset values......................................................................................................................................... 134
11.4.2
Using and programming schedules................................................................................................................ 134
11.4.3
Schedule screen: Example.............................................................................................................................. 138
11.4.4
Setting the energy prices................................................................................................................................ 142
11.5
Weather-dependent curve ............................................................................................................................................. 144
11.5.1
What is a weather-dependent curve? ........................................................................................................... 144
11.5.2
2-points curve................................................................................................................................................. 144
11.5.3
Slope-offset curve........................................................................................................................................... 145
11.5.4
Using weather-dependent curves.................................................................................................................. 147
11.6
Settings menu ................................................................................................................................................................. 149
11.6.1
Malfunctioning ............................................................................................................................................... 149
11.6.2
Room............................................................................................................................................................... 149
11.6.3
Main zone ....................................................................................................................................................... 154
Table of contents
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87
122
123
Installer reference guide
3
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