204
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 with new part.
(Determine need by in-
spection.)
Breaker relays
-
Determine need by in-
spection.
Fuses
10 years
Replace with new part.
Aluminum capaci-
tors on PCBs
5 years
Replace board. (Deter-
mine need by inspection.)