4 Installation
4.1 Installation warnings
• Working with machinery controlled by a frequency converter requires special
safety precautions which depend on the type of network (TN, TT or IT). Consult
Atlas Copco.
• Thermal insulation should be provided to offer protection against the high
temperature of the air outlet valve and air delivery pipe.
• Consult the “Safety precautions during installation” before starting the installation.
• Cooling air for starter cabinet:
• Contamination levels (ambient) according to IEC 60 721-3-3.
• Chemical gases: Class 3C2
• Solid particles: Class 3S2
• No conductive dust allowed
• No condensation allowed
• Maximum allowed relative humidity is 60 % in the presence of corrosive
gases.
• When good EMC practices for installation are followed, the compressor qualifies
for installation in EMC category C3, according to EN61800-3, for use in a 2nd
environment (a 2nd environment includes all establishments other than those
directly connected to a low voltage power supply network which supplies buildings
used for domestic purposes).
The compressor is not intended to be used on a low-voltage public network which
supplies domestic premises. Radio frequency interference can be expected if used on
such a network.
Instruction book
API797429 43
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