12
Filtering unit
UFO-A-5000 24.05.2019
7. Operational Use
UFO-A-5000
has been developed for cooperation with a system of local exhausts, for example
extraction arms, connected to the main ducting
that is joining them with the inlet fitting pieces.
The
ZE-UFO-A switchgear
is delivered along with the appliance and controls the device fun-
ction providing cleaning of the filters surfaces by cyclical impulses of compressed air.
1. Structure of the control unit
a
.
external part
– consisting of a control panel, containing subsequent elements:
–
white lamp
H1
–
continuous light:
indicates that the system is energized with the sup-
ply voltage.
–
green lamp
H2
–
continuous light: the contactor (controlling the motor) is switched on;
blinking light: the fan can be started;
–
red lamp
H3
–
alarm
– blinking light
during the
emergency;
after
confirmation by pres-
sing the
S2
“
STOP
” button,
the
lamp
lights
continuously
– until the mo-
ment when the failure is fixed.
Press the
S2
“
STOP
” button one more time, to stop the
H3
light.
–
yellow lamp
H4
–
signalling of the regeneration of the filters.
–
green button
S1
“
START
”
–
applies signal onto the coil
of the contactors
– operates the
fan motor;
after the fan is switched on, its work is indicated
by the signalling lamp; simultaneously
the
filters are rege-
nerated.
–
red button
S2
“
STOP
”
–
interrupts the circuit of the contactors coil
– the fan motor
stops;
the control system is further energised
and is in readiness
for the fan restart; the final regeneration stage of the filters
is in progress.
–
yellow button
S3
“
MANUAL REGENERA-
TION OF THE FILTERS
”
–
operates
the
additional
cycle
of the filters regeneration
while
the fan is switched off.
Controller
– serves as a timer controlling the function of the electromagnetic valves.