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6.4 Inspection and Replacement of the Replaceable Component
Filter Capacitor
The performance of the aluminum electrolytic filter capacitor in the main circuit may be
impacted by the pulsating current, ambient temperature, and application conditions. It
is advisable to replace the inverter's electrolytic capacitor after 10 years of use.
However, immediate replacement is necessary if there are indications of electrolyte
leakage or expansion of the safety valve on the capacitor.
Cooling Fan
SV4 has a cooling fan inside the inverter. Service life of the fan is around 15,000 hours.
Replace the fan if it makes abnormal noise or vibrations.
6.5 Storage
If the product is to be stored, the following should be noted:
• Avoid high temperature or humidity or where there is vibration and metal dust,
ensure proper ventilation at all times.
• Filter capacitor performance declines with long–time disuse. It is necessary to
energize it once every 2 years to restore performance. Inspect the inverter function
at the same time.
NOTE
When the lter capacitor is powered, the voltage should be
increased through a DC supply and power on time should not
be less than 5 hours.
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