User Manual

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Siemens HVAC central apartment unit with consumption data acquisition QAX903 CE1N2741en
Building Technologies 2016-01-30
Operating and display elements
2741P01.tif
Ventilation button
Button for ventilation mode.
To set the ventilation state (Auto / Off / Stage 1 / Stage 2 / Stage 3) for
one-time rapid ventilation.
Absence button
To select the absence function (absent/present). The Absence function
influences heating, cooling, and ventilation.
Apartment timer button
To set and activate the timer function for selected rooms. Rooms are
heated or cooled to the selected setpoint (Comfort, Precomfort or
Economy) and runs ventilation on the corresponding setpoint stage while
the timer function is enabled.
Mode button
To select the operating mode for the apartment (Auto / Comfort /
Precomfort / Economy / Protection). The apartment operating mode
simultaneously acts on room control and ventilation.
Info button
To scroll through the info pages and to display Help texts on the menu
level.
Up arrow
To navigate up on a menu level, to scroll backward on the info pages, and
to set (increase) values.
Down arrow
To navigate downward on the menu level, to scroll forward on the info
pages, and to set (decrease) values.
Esc button
To navigate back to the next higher menu level, to quit the main menu, or
to abort entry of values.
Menu / ok button
To open the main menu, to navigate to a lower menu level, or to confirm
entry of values.
Operating element
functions