SE_20200507_HTE400_M
43
HT400 Rectangular fi re damper - UNI EN 1366-2 Certifi ed - UNI EN 13501-3 Classifi ed
2
1
3
2
1
4.7
Dampers with CO
2
- Driven release
4.7.1
Procedure for replacing the opening signal microswitch
2.
Unscrew the two self-drilling 3 / 5 hex-
agonal / crosshead screws that secure
the microswitch.
3. REPLACE
the microswitch, checking
the inclination of the lever and the ori-
entation of the microswitch.
Tighten the two self-drilling 3/5 hexag-
onal/crosshead screws that secure the
microswitch.
4.
To
RESET
the fi re damper use the pis-
ton
(1)
and turn the lever
(2)
anti-clock-
wise.
Once the lever is in a horizontal posi-
tion release the piston at the relevant
position
(3
) on the lever.
1. Check the condition of the
damper.
To
DEACTIVATE
the damp-
er,
if activated
, use the pis-
ton
(1)
and turn the lever
(2)
clockwise until the damper is
closed completely .
Beware of the restoring
force of the spring.
To prevent accidents
it is
advisable to take care around
the lever’s area of operation,
as outlined in the diagram.
