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Building Technologies Division  Basic Documentation LME39…  CC1P7106en 
  14 Operation via the AZL2…  08.12.2017 
14  Operation via the AZL2… 
14.1  Description of the unit/display and buttons 
 
Function and operation of unit versions AZL21… and AZL23… are identical. 
 
 
Bild 1/0809
P
V
hmin
s%
VSD
ESC
reset
AF
 
Figure 20: Description of the unit/display and buttons 
 
Button  Function 
SD
AF
Buttons A and F: Parameterized function 
- For switching to parameter setting mode P  
  (press
F
 and 
 simultaneously) 
reset
 
Info and Enter button 
- For navigation in info and service mode 
  * For selection (symbol flashing) (press button for <1 second) 
  * For changing to a lower menu level (press button for 1…3 seconds) 
  * For changing to a higher menu level (press button for 3…8 seconds) 
  * For changing to the normal display (press button for >8 seconds) 
- Enter in parameter setting mode 
- Reset in the event of fault 
- One menu level down 
 
- button 
- For decreasing the value 
 
+ button 
- One menu level down 
- For increasing the value 
ES
 
+ and - button: Escape function 
(press
 and   simultaneously) 
- No adoption of value 
- One menu level up