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Siemens room unit QAA822 Building Technologies
There are two ways to set up the temperatures required for the
Economy mode outside the time schedule (only the icon 7 is on).
Temporary temperature setting, until the next change of mode, or
permanent temperature setting. The temporary temperature setting is
made by the Plus or Minus buttons when the Economy mode is
active. To set the temperature permanently, press 2x the button
Parameters, an image with the parameter Econ and the flashing
required temperature for the Economy mode are displayed.
Change the temperature to the required value using the Plus or
Minus buttons. The setting is quitted by the Info button or
automatically after 30 seconds of inactivity
By pressing the Info button the image with the information values
from the connected temperature sensors, air humidity or quality
sensors occurs in dependence on the current configuration of the
air conditioning unit. These values are displayed in cycles and the
next value is displayed by repeated pressing the Info button.
The values below are available:
Zad – required temperature °C
Dod – temperature of the air supplied °C
Pro – room temperature °C
Ven – outdoor temperature °C
VoT –temperature of heating water on the return pipe °C
VoC – temperature of the cooling water on the return pipe °C
Spa – temperature of the waste gases of gas heating °C
Odv – temperature of exhaust air °C
Rek – temperature behind the recuperator °C
Chl – temperature behind the cooler °C
Ohr – temperature behind the heater °C
Vlh – air humidity %
Kval – air quality %
The information viewing is quitted by the Parameters button or
automatically after 30s of inactivity.
The fan speed is set by the repeated pressing the button Fans
provided that the configuration parameters
*)
are preset to enable
the control of the fan speed from the room unit. The fan speed can
be set in six steps indicated on the display within ranges preset for
the modes Economy and Comfort. The fan speed for the
individual modes is set in the configuration parameters
*)
.
If the fan speed control from the room unit is not enabled, then the
icon 3 shows the fan speed determined by the Climatix controller
according to the current operating mode.
The fan speed setting is purposeful only if the fan motors are
controlled by the frequency converter or if EC motors are used.
The fan operation is indicated on the display by the icon 13, in case
of fan failure the icon is flashing.
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