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6 Maintenance
6.1 Preventive Maintenance Recommendations
To maintain trouble-free operation of the DC filter, environmental conditions, load, cooling, and voltage levels have to be within the
specifications given for the DC filter.
Regular maintenance is recommended to ensure long lifetime and undisturbed operation. It is also recommended, as a good serv-
ice practice, to record a maintenance log with counter values, date, and time describing the maintenance and service actions.
At least the following maintenance actions must be taken after one year from installation and thereafter every five years:
Visual inspection
: Check for the unusual, for example, for signs of overheating, aging, corrosion, and for dusty and damaged
components.
Cleaning
: Use compressed air or a vacuum cleaner to remove dust and dirt. To avoid damaging sensitive insulations, handle the
wiring area of the cabinet with care.
Do not use
liquids for the cleaning.
Tightening torques
: Check that the tightening torques of the cable connections are according to the specifications. See
Terminal and Torque Specifications
.
6.2 Recommended Disposal
When the filter reaches the end of its service life, its primary components can be recycled.
Contact your local Danfoss office for further information on environmental aspects and recycling instructions for professional recy-
clers. End of life treatment must follow international and local regulations.
This symbol on the product indicates that it must not be disposed of as household waste. Do not dispose of equipment
containing electrical components together with domestic waste.
It must be handed over to the applicable take-back scheme for the recycling of electrical and electronic equipment.
Dispose of the product through channels provided for this purpose.
Comply with all local and currently applicable laws and regulations.
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16 | Danfoss A/S © 2023.01
Maintenance
DC Filters
Design Guide
