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FC66003632 - Rev 00
3
ESTRO BLDC
1 GENERALITIES
Backed by thirty years of experience in the manufacture of fan coil units
Galletti introduces the new ESTRO BLDC line.
Galletti fan coils can be equipped with a permanent magnet (brushless)
electric motor, controlled by an inverter, which enables continuous adjustment
in the number of fan revolutions.
The great advantage of brushless motors is the significant reduction in
power consumption, which in instant operations reaches up to a
1
/
3
of that
of conventional motors and at around 50% in integrated operations, with the
corresponding reduction in CO
2
emissions!
The DC Inverter technology allows to continuously adjust the air flow to the
actual needs of the environment by considerably reducing the fluctuations in
room temperature that are typical of step-by-step adjustments.
The direct consequence is also the reduction in the noise emission of the fan
coil, which is now proportional to the demands of the environment.
THE CONTROL
The operation of the unit with brushless motor is managed by the
MYCOMFORT LARGE control panel, using an analogue output (0-10V) which
is connected to the inverter.
MAX speed
MED
speed
MIN
speed
winter set
winter set °C
% opening
The Galletti brushless fan coil thus represent the
state of the art due to the possibility of regulating
the operation, depending on the temperature of
the air, its relative humidity, the temperature of the
water and based on the programmable time slots.
By means of the digital outputs it is possible
to switch on and off external units or devices
such as chiller, boiler, pumps, water circulation
pumps, etc.
Another analog output makes it possible to control
the modulating valves.
Permanent magnets electric motor, mounted on vibration damping couplings,
complete with winding thermal protection.
The unit is equipped with an inverter board to control the motor, which can
be used separately or installed on the motor itself (features below). By means
dipswitches this system makes it possible to precisely set the maximum
rotation speed of the motor (the control signal range being always 0-10
V) even when the maximum rotation speed must be controlled to reduce
noise levels.
The control inverter is equipped with Hall cells to precisely control the position
of the rotor, and thus the rotation even at very low rotation speed (when
traditional motors cannot be controlled).
For the ESTRO BLDC project we selected top quality materials which, together
with the great care and attention dedicated to the
assembly of the main constructive components,
make the new Galletti fan coil units highly reliable
from a performance standpoint while minimising
noise levels.
New construction concept unifying the vertical
and horizontal mounted models:
F L I
Suspended wall installation, with cabinet, with vertical air flow.
F A I
Wall-mounted, with cabinet, with inclined air flow.
F U I
Floor or ceiling mounted, with cabinet, with vertical air flow and air
intake grille complete with filters.
F p I
Ceiling mounted, cabinet with air outlet grilles and rear air intake with
filter.
F C I
Vertical or horizontal recess mounted with heat insulated galvanised
sheet casing.
F F I
Vertical and horizontal recess mounted, with front air intake, with
heat insulated galvanised sheet casing.
The performance features of Galletti ESTRO BLDC products are certified
by EUROVENT which guarantees the reliability of the data shown on this
documentation.
