Mounting the Sound Absorbers at the Air Outlet

Required mounting material (included in the scope of delivery):

  • 1 sound absorber

  • Mounting frame, consisting of 2 parts (mounted to the sound absorber)

  • 1 ground strap

  • 1 screw M8x20 (stainless steel)

  • 1 nut M8 (stainless steel)

  • 2 washers M8 (stainless steel)

  • 8 screws M6

Procedure:

  1. Make sure that the inverter has been disconnected (see the inverter manual).
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  2. Remove the screws from the air outlet grid (TX30) and keep the screw material for mounting.
  3. Slightly pull the air outlet grid forwards.
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  4. Remove the ground strap of the air outlet grid in the inverter (AF13), take off the air outlet grid and keep the screw material for mounting.
  5. Remove any dust deposits from the area behind the air outlet grid.
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  6. Remove the mounting frame from the sound absorber. To do this, remove the lateral screws (TX40) and take off both frame parts.
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  7. Mount the mounting frame to the inverter (TX30, tightening torque: 6 Nm (53 in-lb)).
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  8. Attach the ground strap from the scope of delivery to the inverter using a screw (M8x20) and washer (M8) (tightening torque: 15 Nm (132.8 in-lb)). Use the material from the disassembly.
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  9. Position the sound absorber laterally on the air outlet.
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  10. Mount the ground strap with screw and washer using a socket wrench with extension on the sound absorber (tightening torque: 15 Nm (132.8 in-lb)).
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  11. Lift the sound absorber in front of the air outlet, push it onto the mounting frame and align with the inverter.
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  12. Mount the sound absorber to the inverter (TX40, tightening torque: 18.0 Nm (159 in-lb)). Ensure that the upper edge of the sound absorber is in close contact with the inverter. This prevents the ingress of dust and moisture.
  13. Position the ventilation grid on the air outlet.
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  14. Mount the ground strap from the ventilation grid with nut (M8, stainless steel) and washer (M8, stainless steel) to the sound absorber (tightening torque: 15 Nm (132.8 in-lb)).
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  15. Mount the ventilation grid to the sound absorber (TX30, tightening torque: 6 Nm (53 in-lb)). Use the material from the disassembly and make sure that the ventilation slats are aligned horizontally and closed when the inverter is switched off.
    Mounting the side cover
    Final mounting work on the MV Power Station