169/245 
Building Technologies Division  Basic Documentation LME7...  CC1P7105en 
Infrastructure & Cities Sector  23 Operation via AZL2…  29.11.2011 
 
23  Operation via AZL2… 
23.1  Description of the unit/display and buttons 
 
Function and operation of versions AZL21… and AZL23… are identical. 
 
 
 
Bild 1/0809
P
V
hmin
s%
VSD
ESC
reset
AF
 
Figure 86: 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 blinking) (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