Siemens Climatix POL822 - Designing; Mounting Instructions; Installation; Commissioning

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Siemens room unit QAA822 Building Technologies
Designing
The room unit is supplied from the connected controller through 2-
wire interface (low voltage, SELV).
The room unit must be connected to the Climatix controller by two-
wire twisted pair cable. It is possible to use unshielded conductors.
Mounting instructions
 The device is suitable for semi-flush mounting with a recessed
installation box.
 The device must not be mounted into recesses, shelves, behind
curtains or doors or above or near the direct heat sources.
 Avoid direct sun and draught.
 The conduit must be sealed on the device side as an air stream
along the conduit can affect the sensor readings.
 The permissible ambient conditions for mounting the device must
be observed.
 The mounting instructions are enclosed with the device.
Installation
Local installation regulations must be observed.
The equipment is not protected against accidental connection to
AC 230 V.
Commissioning
After interruption of the connection to the 2-wire interface, the
communication is re-established only if the room units send a
query about the controller address.
For QAA07, the time cycle for querying is: 250 ms
Step
Function
Description
1
LCD test
All display segments are displayed for
approx. 2 seconds
2
Identification of
the connected
controller
The room unit establishes contact with
the connected Climatix controller
3
Ready for
operation
Disposal
The device contains electrical and electronic components and
must not be disposed as domestic waste.
The valid local legal regulations are to be observed!
STOP
Warning
Device connection