"Extended" parameter setting using room unit QAX34.3
This parameter setting also allows for adjusting critical values.
In the worst case, this may destroy a device (controller / fan coil / actuators or
other plant parts).
Start parameter setting mode
• Press buttons < , > and – simultaneously for 2 s until the display goes dark
• Release buttons
• Press – two times shortly
• Press + and – simultaneously for approx. 2s
• Press + two times shortly
0 for Mode 0 is now displayed.
Use buttons + and / or – to select between the following modes:
0 = Normal mode (normal room unit functions)
1 = Test mode (see 2.7)
2 = Display mode: (see above)
3 = Parameter mode: (see above)
4 = Upload (see 2.6)
5 = Download (see 2.6)
• 6 =
All parameters can be set. They are displayed with prefix "S".
+/– allows for finding the number and pressing < (Enter) confirms it.
The corresponding value is displayed.
+/– allows for modifying the value and pressing < (Enter) confirms it.
> (Escape) returns to list without changing anything.
Pressing Escape one more time opens the list with the modes.
Pressing Escape a third time returns to the normal mode (room unit).
The parameter numbers are located in sections 13.7 and 13.8 as well as in the sections
where the functions are described.
A table of parameters with enumerations fort he HandyTool is shown in Section 13.9.
Selection of the device address using room unit
The device address is defined in parameters *001, *002 and *003.
*001 can be set to a value in the range 0 ... 15
*002 can be set to a value in the range 0 ... 15
*003 can be set to a value in the range 1 ... 255
Each address may occur once only in a given plant.
RXB (KNX) application library
Definitions / Tools
display goes dark
FNC Description of functions for FC-10, FC-11, FC-12
28 Feb 2009