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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 off the power supply.
Blade opening mode
The damper must be opened when the ventilation system if
switched off.
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 off, 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).
Fire dampers pairing
„
The WK45 patented rectangular fire dampers can be paired side-by-
side or vertically (not more than two) using the custom connection
ELEC TRICAL CONNEC TIONS
Electrical wiring
„
Electrical connections must be done by qualified and trained people.
Switch off the power supply before starting any work on the electric
elements. Never switch on the power supply during electrical con-
nections.
kit (see section Accessories and spare parts). Two insulating layers
must be inserted between the two fire dampers.
The pair of dampers, may be installed in vertical wall in the same way
as a single damper.
1.
WK45 Fire damper
2.
Steel plate
3.
Fixing screws
4.
Rock wool strip 100 kg/m³ 80 x 65 x nominal fire damper base + 70 mm
(not included in the connection kit WKBA2)
5.
Rock wool strip 100 kg/m³ 80 x 65 x nominal fire damper height + 70 mm
(not included in the connection kit WKBA2)
6.
Nut
• It is forbidden to pair three or more fire dampers.
1.
WK45 Fire damper
2.
Steel plate
3.
Fixing screws
4.
Rock wool strip 100 kg/m³ 80 x 65 x nominal fire damper base + 70 mm
(not included in the connection kit WKBA2)
5.
Nut
• It is forbidden to pair three or more fire dampers.
• It is forbidden to vertically pair two fire dampers with vertical axis.
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