6
All operations described in this manual must be performed by qualified
personnel only, properly trained and qualified to install, make electrical
connections and maintain ventilation units.
Do not attempt to install the product, connect it to the mains, or
perform maintenance yourself.
This is unsafe and impossible without special knowledge.
Disconnect the power supply prior to any operations with the unit.
All user’s manual requirements as well as the provisions of all the
applicable local and national construction, electrical, and technical
norms and standards must be observed when installing and operating
the unit.
Disconnect the unit from the power supply prior to any connection,
servicing, maintenance, and repair operations.
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