AEG 1.04 Manuale Utente

 

41 

1. 

Maintenance of the UPS and battery replacement should 
be performed by well trained expert personnel. 

2. 

Batteries that have not been used for some time must be 
charged up every three months at normal ambient 
temperature and every two months if the ambient 
temperature is high. 

3. 

The three switches on the back, from top to bottom, are as 
follows: Mains fuse-switch disconnector, manual service 
bypass switch and output switch. Switching the mains 
fuse-switch disconnector on causes mains voltage to be 
supplied to each module of the PROTECT 1.M. Switching 
the output switch on allows output voltage to be delivered 
from the modules of the UPS to the loads. The 
maintenance switch is used for UPS maintenance. The 
UPS can only run in inverter operation if the manual 
service bypass switch is switched off and the cover has 
been fitted. 
Note:

 Make sure that the PROTECT 1.M has been 

changed over to bypass operation before you switch on 
the manual service bypass switch. The load connection is 
immediately supplied with voltage when the manual 
service bypass switch is actuated. Only trained and 
qualified personnel should operate this switch.