58 Maintenance
Action
Task
I
Inspect the temperature and operating conditions of the AC Cabinet using thermography .
I
Examine the grounding system conductivity. This must be done in accordance to local regu-
lation and standards.
■
Maintenance intervals
Component
Cooling fans
Air filters
UPS
Cleaning procedure
Perform the following inspections at least once in every six months.
WARNING!
Obey the
Safety instructions (page 9)
physical injury or death, or damage to the equipment may occur.
WARNING!
Read the manuals of other components (inverters, UPS, etc.). The guideline
specified in this section does not replace the instructions given by the product
manuals of each component.
Task
Pre-check that there are safe conditions before
starting any cleaning procedure.
Use pressurized air to clean the external
enclosure, floors. and gutters.
Use pressurized air to clean all air inlets and
outlets including grills.
Use a vacuum cleaner to clean the floor, doors
and interior beams.
Remove dust from the air inlets and outlets.
Use pressurized air to clean locations with
excessive dust, including busbar connections.
Follow the instructions in the inverters manual.
Make sure that the MV and auxiliary transformers
have cooled down.
Years from start-up or interval
10
R
R (every six months)
Obey manufacturer instructions
and the local safety regulations. If ignored,
Additional information
Cleaning the MVS
Cleaning the AC Cabinet
If necessary, use a duster or pressurized air to
clean locations you cannot reach with the vacuum
cleaner.
Cleaning the inverters
Cleaning the MV transformer area
20
R