11
IT
ENG
fig. 12
OPERATION DATA AND WIRING MANUAL CONTROLS
Microswitches start and end of stroke
The signaling devices stroke end FCU and beginning stroke DCU are both
switches with two contacts independent of the type NC + NO.
The first normally closed (NC) contacts 1 and 6, while the second normally
open (NO) contacts 2 and 5.
At the click of the switch contact status is reversed, the NC contact opens and
the NO contact closes.
Ex: contacts 1 and 6 (NC) is connected to the relay that controls power to the
fan, while contacts in 2 and 5 (NO) is connected to a warning light alarm. In
this case the closure of the damper, the fan will turn off and turn on the light.
Technical data of the switches
-Cable section: 2.5 mm ² rigid - flexible with ferrule 1.5 mm ² Operating tem-
perature: from - 25 °C to + 70 °C
Electromagnet device
If necessary, you can equip the damper of an electromagnet that allows you
to anticipate the closing of the damper with respect to the intervention of the
thermal fuse. Depending on the type of electromagnet (normally energized or
de-energized), sending or interrupting the electrical signal power, the damper
will close preventing the diffusion of cold smoke.
In case of fire, the raising of the temperature, the thermal fuse has priority of
action compared to the electromagnet.
Technical data of the magnets
-Holding force: 120N
-Degree of protection (En 60529): IP40
-Power consumption at 20 ° C: 1.6 W (lack) - 3.5 W (output)
-Operating Temperature: -30 ° C to +85 ° C
OPERATION DATA AND WIRING MOTORIZED CONTROLS
The operation of the motor is given by the connection to the electricity network
(contacts 1 and 2) which brings the blade of the damper in the open posi-
tion and simultaneously charging the internal spring which stores the force
required to close the duct in case of alarm or black- outs.
The connection of the two switches inside the motor can make flexible the
rest of the system. For example, by connecting the contacts S1 and S2 will
be possible in the event of closure of the damper, can shut down the unit for
ventilation, while the contacts S4 and S6 turn on a warning light.
The thermoelectric device is composed of three fuses: Fire dampers then be-
come sensitive to the temperature inside the duct (with fuses Tf and Tf 2 3
which can be substituted) and the ambient temperature (Tf with fuse 1).
The device cuts off in an irreversible way, if not replacing the fuses , the sup-
ply line so that the servomotor leaving overs, with the spring force, the blade
in the closed position.
It also has a manually operated key that simulates the operation of the fuses
allowing testing of the damper.
Its position outside the damper and fastening with screws allows a safe tem-
perature control and easy maintenance.
-24V Connection: transformer
-230V Connection: for the interruption of
the network must incorporate a device
which disconnects the phase conductors
(contacts opening min. 3mm)