Siemens AGU2.522 Series Mounting Instructions page 16

Step 11
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Building Technologies Division
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Warning!
Protective ESD measure and protection against electric shock
When removing the motherboard, always hold it by the transformer.
Never touch the motherboard itself.
Remove motherboard from the housing
Figure 12: Removal of motherboard
Figure 13: Never touch the motherboard itself!
Mounting Instructions AGU2.522...
Step-by-step mounting instructions
CC1J7215en
11.05.2011