Hardi Mercury Series, Instruction Book

Page: 42 / 114

3 - Description
42
Fan
The axial fan has syntetic, impact proof blades resistant to high and low
temperatures as well as chemical products.
The blades have 4 different angle settings to adjust the air flow. To
change the angle see the section “Adjusting the fan”. (page 5.1).
Specific for SF fans
After changing pitch, the fan needs to be balanced.
Position P1 (35º) must coincide with C1, in other words the first groove on
the fan blade with the first groove on the crown.
Second position P2 (40º, standard factory setting) must coincide with C2.
Third position P3 (45º) must coincide with C3. After changing pitch, the
fan must be calibrated, either at the factory, of by certified shop, under
instruction of the factory (HARDI).