Table of contents
Installer reference guide
3
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
8.1.4 Changing the pre-pressure of the expansion vessel...................................................................................... 67
8.1.5 To check the water volume: Examples .......................................................................................................... 67
8.2 Connecting water piping................................................................................................................................................. 68
8.2.1 About connecting the water piping ............................................................................................................... 68
8.2.2 Precautions when connecting the water piping............................................................................................ 68
8.2.3 To connect the water piping .......................................................................................................................... 68
8.2.4 To protect the water circuit against freezing ................................................................................................ 70
8.2.5 To fill the water circuit ................................................................................................................................... 73
8.2.6 To insulate the water piping .......................................................................................................................... 73
9 Electrical installation 74
9.1 About connecting the electrical wiring .......................................................................................................................... 74
9.1.1 Precautions when connecting the electrical wiring....................................................................................... 74
9.1.2 Guidelines when connecting the electrical wiring......................................................................................... 75
9.1.3 About electrical compliance........................................................................................................................... 76
9.1.4 About preferential kWh rate power supply................................................................................................... 76
9.1.5 Overview of electrical connections except external actuators ..................................................................... 77
9.2 Connections to the outdoor unit.................................................................................................................................... 78
9.2.1 To connect the electrical wiring to the outdoor unit .................................................................................... 80
9.2.2 To connect the main power supply................................................................................................................ 81
9.2.3 External backup heater kit ............................................................................................................................. 84
9.2.4 To connect the user interface ........................................................................................................................ 91
9.2.5 To connect the shut-off valve ........................................................................................................................ 94
9.2.6 To connect the electricity meters .................................................................................................................. 95
9.2.7 To connect the alarm output ......................................................................................................................... 96
9.2.8 To connect the space cooling/heating ON/OFF output................................................................................. 96
9.2.9 To connect the changeover to external heat source..................................................................................... 97
9.2.10 To connect the power consumption digital inputs........................................................................................ 98
9.2.11 To connect the safety thermostat (normally closed contact) ....................................................................... 99
9.2.12 To connect a Smart Grid................................................................................................................................. 100
10 Finishing the outdoor unit installation 104
10.1 To check the insulation resistance of the compressor .................................................................................................. 104
11 Configuration 105
11.1 Overview: Configuration................................................................................................................................................. 105
11.1.1 To access the most used commands ............................................................................................................. 106
11.1.2 To connect the PC cable to the switch box.................................................................................................... 108
11.2 Configuration wizard....................................................................................................................................................... 109
11.3 Possible screens .............................................................................................................................................................. 110
11.3.1 Possible screens: Overview ............................................................................................................................ 110
11.3.2 Home screen................................................................................................................................................... 110
11.3.3 Main menu screen.......................................................................................................................................... 113
11.3.4 Menu screen................................................................................................................................................... 114
11.3.5 Setpoint screen............................................................................................................................................... 114
11.3.6 Detailed screen with values ........................................................................................................................... 115
11.4 Preset values and schedules........................................................................................................................................... 115
11.4.1 Using preset values......................................................................................................................................... 115
11.4.2 Using and programming schedules................................................................................................................ 116
11.4.3 Schedule screen: Example.............................................................................................................................. 118
11.4.4 Setting the energy prices................................................................................................................................ 123
11.5 Weather-dependent curve ............................................................................................................................................. 125
11.5.1 What is a weather-dependent curve? ........................................................................................................... 125
11.5.2 2-points curve................................................................................................................................................. 125
11.5.3 Slope-offset curve........................................................................................................................................... 126
11.5.4 Using weather-dependent curves.................................................................................................................. 128
11.6 Settings menu ................................................................................................................................................................. 129
11.6.1 Malfunctioning ............................................................................................................................................... 129
11.6.2 Room............................................................................................................................................................... 130
11.6.3 Main zone ....................................................................................................................................................... 134
11.6.4 Additional zone............................................................................................................................................... 144
11.6.5 Space heating/cooling .................................................................................................................................... 149
11.6.6 User settings ................................................................................................................................................... 157
11.6.7 Information..................................................................................................................................................... 162
11.6.8 Installer settings ............................................................................................................................................. 163
11.6.9 Commissioning ............................................................................................................................................... 180
11.6.10 Operation........................................................................................................................................................ 180
11.6.11 WLAN .............................................................................................................................................................. 180
11.7 Menu structure: Overview user settings........................................................................................................................ 183
11.8 Menu structure: Overview installer settings.................................................................................................................. 184
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