
6
Blade closing mode
Automatic closing with thermal fuse.
The control mechanism has a thermosensitive element that auto-
matically closes the blade when the temperature in the duct exceeds
70°C (or 95°C for the re damper with 95°C thermal fuse).
It is possible to close the damper by pressing the indicated button.
It is possible to remotely close the re damper.
The manual command mechanism with magnet is equipped with
an electromagnet which, in case power is interrupted (interuption
magnet version) or when power is supplied (input magnet version),
comands the closing of the damper.
Blade opening mode
The damper must be opened when the ventilation system if
switched o.
In case of closed damper by pressing the closing button or remotely
by electromagnet, it is possible to manually open the re damper
blade by rotating the lever antyclockwise.
In case of closed damper as a result of the action of the thermosen-
sitive element, it is possible to manually reopen the damper by rotat-
ing the lever counterclockwise once the element has been replaced.
Position indication microswitches
It is advisable to install the re damper with position microswitches
(S2 optional) which signal the position of the blade (open or closed).
Refer to the section Electrical connections for more details.
Closing by remote control
With power supply input or interruption magnet.
Temperature calibration of thermosensitive element for auto-
matic damper closing
70 °C±7 °C (Standard)
95 °C±9 °C (On request).
Belimo motorized version
1. Manual closing switch
2. Manual opening lever
3. Position indicator
4. Blade locking lever
Blade closing mode
Automatic closing with thermal fuse.
The control mechanism has a thermosensitive element that auto-
matically closes the blade when the temperature in the duct or in
the room exceeds 72°C (or 95°C for the 95°C version).
To close the damper when the motor is connected, press the switch
on the temperature sensor or cut o the power supply.
Blade opening mode
To open the damper with the electric motor driven actuator, provide
power supply to the motor. Refer to the section Electrical connec-
tions for further information.
To manually open the damper, use the handle supplied and carefully
rotate clockwise to the 90° indicator. To hold the damper in open
position operate on the lever indicated in gure.
During the manual opening of the damper, power must not be sup-
plied to the motor.
Position indication microswitches
The motorized versions are supplied with two microswitches to
show the blade’s position (open or closed). Refer to the section Elec-
trical connections for further information.
Closing by remote control
If power to the motor is cut o, the blade will close.
Temperature calibration of thermosensitive element for auto-
matic damper closing
72 °C±7 °C (Standard)
95 °C±9 °C (On request).
Siemens motorized version
1. Manual closing switch
2. Manual opening lever
3. Screwdriver
4. Position indicator
Blade closing mode
Automatic closing with thermal fuse.
The control mechanism has a thermosensitive element that auto-
matically closes the blade when the temperature in the duct or in
the room exceeds 72°C (or 95°C for the 95°C version).
To close the damper when the motor is connected, press the switch
on the temperature sensor or cut o the power supply.
Blade opening mode
To open the damper with the electric motor driven actuator, provide
power supply to the motor. Refer to the section Electrical connec-
tions for further information.
To manually open the damper, use the handle supplied and carefully
rotate counterclockwise to the 90 °C indicator. To hold the damp-
er in open position, rotate the screw anticlockwise as shown in the
picture.
During the manual opening of the damper, power must not be sup-
plied to the motor.
Position indication microswitches
The motorized versions are supplied with two microswitches to
show the blade’s position (open or closed). Refer to the section Elec-
trical connections for further information.
Closing by remote control
If power to the motor is cut o, the blade will close.
Temperature calibration of thermosensitive element for auto-
matic damper closing
72 °C±7 °C (Standard)
95 °C±9 °C (On request).
ELECTRICAL CONNECTIONS
Electrical wiring
Electrical connections must be done by qualied and trained people.
Switch o the power supply before starting any work on the electric
elements. Never switch on the power supply during electrical con-
nections.