All units should be inspected before installation in case of damage during transportation. A check should be made to ensure:

 

The type and capacity of the power supply should agree with the motor name plate secured on the fan. A three phase unit should not be adjusted to be connected to single phase power.

 

Installers or electricians should ensure that a suitable thermal overload protection is provided (guarantee of motors will not be validated if overload protection was not installed). The overload used must suit the amperage specified on the nameplate of the fan unit.