Eaton Corporation                                                Page 62                                                          Ver 1.1  
 
9.2 Cleaning the LCD Display
 
If  the  screen  of the  LCD  display  and the  LED  indicators are  dusty and  not 
readable, please use a piece of damp cloth to clean the surface. 
 
9.3 Install or Replace the DC/AC fuse 
 
 
Insulation Protection 
An  insulation  glove  should  be  worn  during  the  configuring  and 
replacing the fuse or installing the components. 
ELECTRICAL SHOCK 
There  is  risk  of  electrical  shock  from  the  energy  stored  in  the 
capacitors. Therefore, it is necessary not to remove the top cover 
of wiring box until 3 minutes after DC/AC switch is turned off.   
It is necessary to turn off the external DC switch and external AC 
breaker  if  these  are  present.
 
Otherwise,  it  is  important  to 
disconnect  all  the  DC  modules  and  AC  utilities  connections 
before service of the fuse replacement is started. The PV Inverter 
must  be  disconnected  from  all  sources  of  power  supply.  Refer 
service to only qualified service personnel. 
 
IMPORTANT 
The  selection  of  the  DC  fuses  must  follow  the  instructions 
outlined  in  chapter  g.  DC  protection  of  section  6.2  within  the 
manual. 
 
A)  Remove the fuse cover from the fuse holders as shown in figure 9.3.1: 
 
                   
Figure 9.3.1: Remove the fuse cover