5 
2.1.5 During Maintenance 
 Caution 
The inverter should be used in a non-condensed environment with temperature 
from –10 degree C to +40 degree C and relative humidity of 95% non-condense.
 
 
 Caution 
When the inverter top cover has removed, it can be used in a non-condensed 
environment with temperature from –10 degree C to +50 degree C and relative 
humidity of 95%, but the environment should be free from water and metal dust.