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Information

Symbols................................................................................................................ 9

Intended use......................................................................................................... 10

Introductory information

Control unit function modes.................................................................................. 11

Where to find the controls

Summary of controls and indicators..................................................................... 12

■ Controls and display elements.......................................................................... 12

■ Symbols on the display..................................................................................... 13

Commissioning

Heating system operating mode........................................................................... 15

Time program or operating mode......................................................................... 16

■ Selecting the time program or operating mode................................................. 16

■ Preset time programs........................................................................................ 16

■ Constant operating modes................................................................................ 17

■ Changing the selected time program and set temperatures............................. 18

Central heating

Selecting the operating mode............................................................................... 20

Temporarily changing the room temperature........................................................ 20

■ Temporarily changing the set room temperature.............................................. 20

■ Comfort mode................................................................................................... 20

■ Reduced mode.................................................................................................. 21

Permanently changing the room temperature...................................................... 21

■ Changing the heating curve for weather-compensated operation.................... 22

Changing the room temperature for a few days (holiday mode).......................... 24

■ Stopping or interrupting the holiday program.................................................... 25

DHW heating

Setting the time program and DHW temperature................................................. 26

■ Changing or deleting switching times............................................................... 26

■ Temporarily changing the DHW temperature.................................................... 26

Further adjustments

Time and date...................................................................................................... 27

Summer/wintertime.............................................................................................. 27

Further settings.................................................................................................... 27

Setting the language............................................................................................ 28

Changing the default display................................................................................ 28

Setting the contrast.............................................................................................. 29

Index

5837779

Viessmann OpenTherm User Manual

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