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Siemens RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation CE1P3076.en

Building Technologies Functions 2012-10-02

If the keypad lock function is enabled by parameter P14, then the keypad will be

locked or unlocked by pressing 7 seconds (RDF600...: 3 seconds) on the operating

mode button

If “Auto lock” is configured, then the controller will automatically lock the keypad 30

seconds after the last adjustment.

4.6 Control sequences

The controller can be used in systems featuring:

 Heating or cooling mode (P01=0 or P01=1)

 Manual heating/cooling changeover (P01=2)

 Automatic heating/cooling changeover (P01=3)

 Heating and cooling mode (e.g. 4-pipe system) (P01=4)

The relevant modes are available and can be adjusted via commissioning

parameter “Control sequence” P01, depending on the selected application.

Sequence

T °C

Parameter P01 = 0 P01 = 1 P01 = 2 P01 = 3 P01 = 4

Mode

Available for:

Heating mode

Cooling mode

*) 2-pipe with

el. heater

Manually select

heating or

cooling mode

Automatic

heating/cooling

changeover via

external water

temperature

sensor or

remote switch

Heating and

cooling mode,

i.e. 4-pipe

2-pipe,

2-pipe & el. heater

   

4-pipe

  

Keypad lock

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