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General
Safety
Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
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Danger from electric current.
This can result in serious injury or death.
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Electrical current hazard caused by an inadequate ground conductor connec-
tion.
This can result in serious injury and damage to property.
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Danger due to hot system components and hot coolant.
This can result in severe scalds.
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Risk from coolant leakage.
This can result in serious damage to property.
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26
WARNING!
All work described in this document must only be carried out by a Fronius-
trained service technician.
Read and understood this document,
Read and understood all the Operating Instructions for the system com-
ponents, especially the safety rules.
WARNING!
Before starting work, switch off all the devices and components involved
and disconnect them from the grid.
Secure all the devices and components involved to prevent unintentional
restarting.
After opening the device, use a suitable measuring instrument to check
that electrically charged components (such as capacitors) have been
discharged.
WARNING!
Always use the original housing screws in the original quantity.
CAUTION!
Only carry out the work described in this document, when the coolant has
cooled to room temperature (+25 °C, +77 °F)
Only carry out the work described in this document when all system com-
ponents have cooled to room temperature (+25 °C, +77 °F)
CAUTION!
If there is any coolant on the exterior of the cooling unit, remove it
immediately.
Make sure that no coolant gets into the device.
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