GBGB
6.
ELECTRONICALLY
COMMUTATED
FANS (EC)
6. Electronically commutated fans (EC)
The units belonging to the J**V series are equipped with electronically commutated “EC” fans, these fans, based on
“Brushless” technology, create substantial advantages in terms of:
noise levels;
The EC motor is synchronized with permanent magnets which are electronically commutated. The commutation is made
by a power transistor, therefore there are no mechanical elements such as a collector or brushes which would noticeably
reduce the life span. In EC motors the magnetic field is generated by the same rotor thanks to the presence of permanent
magnets. The commutation of the magnetic field is electronic and consequently free of wear and tear resulting from
contact between static and rotating parts. The operating mode and the materials used lead to an increased efficiency
which is shown in less absorption with the same performance.
The advantages created by EC fans applied to JUPITER units leads to both a reduction in the absorbed power with the
same performance compared to the same unit equipped with traditional fans as well as an increase in performance in
terms of available air flow and static.
Electronically commutated motors also allow the advantages of “soft start” which means lower inrush currents compared
to nominal values. The voltage range is much wider than that which is available for traditional motors and due to a 0-10V
input these fans can be regulated continuously which means that the speed can be selected from the user terminal or may
be integrated with the AFPS which can vary the speed based on the static pressure present
underneath the floor.
The advantages created by EC fans applied to Jupiter units leads to both a reduction in the absorbed power with the same
performance compared to the same unit equipped with traditional fans as well as an increase in performance in terms of
available air flow and static.
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