4 Assemblage
4.4
4.6 Inspection
4.6.1 Mechanical testing
Check the fan after it has been assembled and
installed.
— Check the attachment of the fan to the
foundation.
— Check if the impeller rotates freely (turn it
with the hand).
— Remove any foreign objects from the fan
housing.
— Check all screw couplings and bolted
connections.
— Check all connections to duct work.
4.6.2 Electrical testing
The electrical system of the fan may only
be tested by a qualified electrician.
— Check the operating voltage.
— Check the earthing.
— Check the size of the fuses.
If the fan is not put into operation immediately after
it has been assembled and installed, it must be
secured against unauthorized use and covered with
a tarpaulin.
