Mitsubishi Electric 800 Series Instruction Manual page 47

2.
Connect the fan connectors.
FR-E820-0080(1.5K) to 0330(7.5K)
FR-E840-0040(1.5K) to 0170(7.5K)
FR-E860-0027(1.5K) to 0120(7.5K)
3.
Install the fan cover.
2. Insert hooks
until you hear
1. Insert hooks into
a click sound
holes.
FR-E820-0080(1.5K) to 0330(7.5K)
FR-E840-0040(1.5K) to 0170(7.5K)
FR-E860-0027(1.5K) to 0120(7.5K)
NOTE
• Installing the fan in the opposite direction of air flow may shorten the inverter life.
• Ensure that the cables are not caught when the fan is installed.
• Switch OFF the power before starting the fan replacement work. To prevent an electric shock accident, keep the inverter with
its covers on during fans replacement since the inverter circuits are charged with voltage even after power OFF.
 Smoothing capacitors
A large-capacity aluminum electrolytic capacitor is used for smoothing in the DC section of the main circuit, and an aluminum
electrolytic capacitor is used for stabilizing the control power in the control circuit. Adverse effects from ripple currents
deteriorate capacitors. Replacement intervals of capacitors vary greatly with surrounding temperatures and operating
conditions. Replace them roughly every 10 years when used in normal air-conditioned environments.
Inspecting the product visually:
• Case: Check that the sides and bottom of the capacitor have not ruptured.
• Rubber seal: Check for any noticeable bulging or severe cracks.
• Check for external cracks, discoloration, leakage, etc. It is assumed that the capacitor has reached the end of its life when
its capacity has dropped below 80% of its rated capacity.
NOTE
• The inverter diagnoses the main circuit capacitor and control circuit capacitor by itself and estimates its remaining life. (Refer
to the FR-E800 Instruction Manual (Function).)
 Relay output terminals
• The contacts of relays deteriorate over time. To prevent faults from occurring, relays must be replaced when they have
reached the maximum of switching operations (switching life).
3. Precautions for Maintenance and Inspection
3.1 Inspection item
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