Klarstein Standventiltor Bedienungsanleitung Seite 17

The fan can be installed at two heights depending on whether or not the middle tube is
used:
If the smaller size is needed please avoid the point 2 and 3 of assembly and proceed to
connect the upper tube to the lower tube by screwing them together.
ATTENTION: do not connect the fan to electrical supply until the unit is fully
assembled.
EN
17