Product Maintenance; Check The Electrical Connection; Clean The Air Vent Filter; Replace Cooling Fans - Chint Power CPS SCA20KTL-DO Installation And Operation Manual

7.2 Product maintenance

7.2.1 Check the electrical connection

Check all the cable connections as a regular maintenance inspection
every 6 months or once a year.
1.) Check the cable connections. If loose, please tighten all the cables
referring to "3.3 Electrical installation".
2.) Check for cable damage, especially whether the cable surface is
scratched or smooth. Repair or replace the cables if necessary.

7.2.2 Clean the air vent filter

The inverter can become hot during normal operation. It uses built in
cooling fans to provide sufficient air flow to help in heat dissipation.
Check the air vent regularly to make sure it is not blocked and clean the
vent with soft brush or vacuum cleaner if necessary.

7.2.3 Replace cooling fans

If the internal temperature of the inverter is too high or abnormal noise is
heard assuming the air vent is not blocked and is clean, it may be necessary to
replace the external fans. Please refer to Figure 7-1 for replacing the cooling
fans.
1. Use a No.2 Phillips head screwdriver to take off the 10 screws on the fan
tray (6 screws on the upper fan tray, and 4 screws on the lower fan tray).
2. Disconnect the waterproof cable connector from the cooling fan.
3. Use a No.2 Phillips head screwdriver to take off the screws.
4. Fix the new cooling fan on the fan tray, and fasten the cable on the fan tray
with cable ties
Torque value: 0.8-1N.m
5. Install the assembled fans back to the inverter.
Torque value: 1.2N.m
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