1 | You must always switch off all power before installation or maintenance work on the ST90 system. Use the main circuit breaker, and label the breaker with a warning sign that informs others that maintenance or installation
work is in progress on the system.
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2 | For safety reasons, two persons must always be present during troubleshooting with power ON. |
3 | Read and understand the applicable first aid instructions related to electric shock. |
4 | Whenever maintenance is in progress, it is essential that a first aid kit is available, and that all personnel are familiar with the first aid instructions for electrical shock. |
5 | The various parts of the system may be heavy. Make sure that the appropriate tools and certified lifting equipment are available. The personnel must be trained in relevant
installation and maintenance work.
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