14/245 
Building Technologies Division  Basic Documentation LME7...  CC1P7105en 
Infrastructure & Cities Sector  1 Safety notes  29.11.2011 
 
certain that the application will run safely in compliance with legal requirements. If 
not observed, there is a risk that safety functions will be impaired 
 Only LME71.901... 
When the fan operates on permanent phase, it must be ensured that there is a safe 
electrical separation between mains voltage and PWM/Hall input/output. If not 
observed, there is a risk that safety functions will be impaired and that a risk of 
electric shock will exist 
 
To ensure safety and reliability of the LME7... system, the following points must also be 
observed: 
-  Condensation and ingress of humidity must be avoided.  
Should such conditions occur, make sure that the unit will be completely dry before 
switching on again! If not observed, there will be a risk of electric shock 
-  Static charges must be avoided since they can damage the unit’s electronic 
components when touched. 
Recommendation: Use ESD equipment