User Manual

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Siemens QAX50, QAX51 Flexible room unit CA2N1648en_05
Building Technologies 2015-12-23
80069 A
Buttons for adjustment of the room temperature setpoint
Room temperature and control sequence (heating / cool-
ing) display
Display of current control mode or current fan speed
Rocker switch for selection of control mode and fan
speed
Configurable control panel (example of configuration)
The actual functions of the operator controls and display panel are determined by the
downloaded application. The description below covers all the possible options.
Rocker switch for mode selection and fan-speed control
The control mode of the connected room controller can be selected with the rocker
switch. The same switch is used for manual control of the up to three fan speeds.
Pressing once in the direction of the left arrow switches one stage to the left, and press-
ing once in the direction of the right arrow switches one stage to the right.
The current control mode or manually-selected fan speed is indicated in the display
panel by a horizontal bar below the associated symbol.
Position
Fan speed control
1)
Control mode
1)
Fan controlled automatically
by room controller
Pre-comfort or Economy
(according to central control)
Fan controlled automatically
by room controller
Comfort
Manual, fan speed 1
Manual, fan speed 2
Manual, fan speed 3
1) For function descriptions of the relevant HVAC applications refer to the Desigo RXC Applications
library, CA2A3810 (V1) or CA110300 (V2).
The operation of this rocker switch has no effect on the control of lighting or blinds.
Press the button once to switch from a display of the current room temperature to a
display of the setpoint. Each further operation of the
+ or button raises or lowers the
setpoint by 0.5 K or 1.0 °F. The unit of measurement and the maximum allowable ad-
justment range is determined by parameters in the application software.
Operator controls
and display
Note
Note
Buttons for room te
m-
perature setpoint a
d-
justment