Arrangement of the wiring

Strictly observe the frequency inverter manufacturer's installation recommendations and requirements! Observe the following in particular:

• The power cable between frequency inverter and compressor motor should have a suitable EMC shield which is connected to both the mounting plate of the electrical enclosure and to the housing of the motor with large contact-area bonding of the screen without any "pigtail" connections.
  As the terminal box of Bitzer scroll compressors is made of plastic, the earth screw in the terminal box should be properly connected to the EMC shield, e.g. with earth straps and shield clamps.
• Depending on the local environment (residential, commercial, industrial etc.), additional EMC filters may be required.
• The motor should be earthed using the protective earth conductor of this cable.
• Additionally, the compressor housing should be earthed separately with a cable of suitable cross-sectional area.
• With regard to the power cable, the frequency inverter manufacturer's recommendations should be observed (e.g. concerning maximum length, spacing to other cables).