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188
Part Replacement
Inverter’s maintenance periods are given below. Keep them as guide-
lines.
Part Replacement Guidelines
Note: Usage conditions are as follows:
• Ambient temperature: Yearly average of 30
°
C
• Load factor: 80% max.
• Operating rate: 12 hours max. per day
Part
Standard
Replacement
Period
Replacement Method
Cooling fan
2 to 3 years
Replace with new part.
Smoothing capacitor
5 years
Replace the Inverter unit with a new
one.(Determine need by inspection.)
Breaker relays
-
Replace the Inverter unit with a new
one.(Determine need by inspection.)
Fuses
10 years
Replace the Inverter unit with a new
one.(Determine need by inspection.)
Aluminum capaci-
tors on PCBs
5 years
Replace the Inverter unit with a new
one.(Determine need by inspection.)