Fronius Primo 208-240 Operating Instructions Manual page 14

When drilling out the knockouts at the back, place the wall bracket on
*
an even surface with the back upwards so that shavings and pieces
of metal can fall out of the wall bracket.
Attach appropriate conduits to all knocked/drilled out knockouts.
In the event of installation outside, only use watertight conduits and
conduit fittings.
Conduits and conduit fittings are not included with the inverter.
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