Fronius OPT/i Bedienungsanleitung Seite 32

Preparation
Danger from electrical current.
This can result in serious personal injury and damage to property.
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WARNING!
Before starting work, switch off all the devices and components involved
and disconnect them from the grid.
Secure all devices and components involved so they cannot be switched
back on.
After opening the device, use a suitable measuring instrument to check
that electrically charged components (such as capacitors) have been
discharged.
1. Remove 8 M5x18 screws.
2. Remove the lid.
1. Cut film at position GAS 1 IN.
2. Drill a bore with a Ø 14 mm drill.