Siemens SIPLUS HCS Series Operating Instructions Manual page 16

Security information
2.1 Safety information
Working on the device or on components connected to it
Electric shock hazard
May cause death or serious injury
• Voltages of more than 60 V can occur in the control cabinet. Suitable safety precautions
• Before working on the heating control system or the connected components, ensure the
Fuse replacement
NOTICE
Use only the prescribed fuse types. If you operate a heating controller with unapproved
fuses, the device could be destroyed.
Repairs
No user-serviceable parts
May cause death or serious injury
Incorrectly performed repairs may result in substantial damage to equipment or endanger
the user. Return the device to Siemens for repair.
14
WARNING
preventing contact must therefore be taken during commissioning and maintenance
work.
system is disconnected.
WARNING
SIPLUS HCS4200 PROFINET/PROFIBUS DP
Operating Instructions, 07/2019, A5E35066204A/006