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Siemens AG Industry Sector Building Technologies Division
Berliner Ring 23
D-76437 Rastatt
Tel. 0049-7222-598-279
Fax 0049-7222-598-269
www.sbt.siemens.com
Building Technologies Division
Industry Sector
7
List of figures
Figure 1: Plastic support AGU2.522... with extra PCB ....................................................9
Figure 2: Extra PCB.......................................................................................................10
Figure 3: Extra PCB assembled ....................................................................................11
Figure 4: Removal of boiler's front cover.......................................................................12
Figure 5: Control section folded down ...........................................................................13
Figure 6: Cover from control section removed...............................................................13
Figure 7: ESD wrist strap...............................................................................................13
Figure 8: Connection of ESD wrist strap to the boiler....................................................14
Figure 9: Disconnection of cables and removal of fuse.................................................14
Figure 10: Removal of housing......................................................................................15
Figure 11: 7 fixing screws ..............................................................................................15
Figure 12: Removal of motherboard..............................................................................16
Figure 13: Never touch the motherboard itself! .............................................................16
Figure 14: Motherboard placed on plastic foam suited for ESD or stored in an ESD bag
................................................................................................................................17
Figure 15: Package with extra PCB...............................................................................18
Figure 16: Fitting the extra PCB ....................................................................................19
Figure 17: Replacement of LMU74................................................................................19
Mounting Instructions AGU2.522...
List of figures
© 2011 Siemens AG Industry Sector Building Technologies Division
Subject to change!
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CC1J7215en
11.05.2011
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