Fronius Tauro 50-3 Operating Instructions Manual page 29

The inverter is suitable for installation on a sloping surface.
Do not install the inverter on a sloping surface with its connection
sockets at the top.
Do not install the inverter at an angle on a vertical wall or column.
Do not install the inverter horizontally on a vertical wall or pillar.
Do not install the inverter on a vertical wall or pillar with its connection
sockets facing upwards.
Do not install the inverter overhanging with the connection sockets at
the top.
Do not install the inverter overhanging with the connection sockets at
the bottom.
Do not install the inverter on the ceiling.
29