ovER vIEW
WH45P
8
/42
rev 20-10
For vGb/DGb versions to hold the damper in open posi-
tion, carefully rotate the handle counterclockwise.
During the manual opening of the damper, power must
not be supplied to the motor.
Position indication microswitches
The motorized versions are supplied with two microswi-
tches to show the blade's position (open or closed). Refer
to the section Electrical connections p. 26 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
automatic damper closing
72 °C±7 °C (Standard)
95 °C±9 °C (on request).
1.9.3.
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 automatically 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
Make sure that the damper is open before the ventilation
system start-up, otherwise there is a risk of product mal-
function.
To open the damper with the electric motor driven actua-
tor, provide power supply to the motor. Refer to the section
Electrical connections p. 26 for further information.
To manually open the damper, use the handle supplied
and carefully rotate counterclockwise to the 90 °C indica-
tor. To hold the damper in open position, rotate the screw
anticlockwise as shown in the picture.
During the manual opening of the damper, power must
not be supplied to the motor.
Position indication microswitches
The motorized versions are supplied with two microswi-
tches to show the blade's position (open or closed). Refer
to the section Electrical connections p. 26 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
automatic damper closing
72 °C±7 °C (Standard)
95 °C±9 °C (on request).
WH45P
8
We reserve the right to make changes without prior notice