SE_20200507_HTE 400_M
38
HT400 Rectangular fi re damper - UNI EN 1366-2 Certifi ed - UNI EN 13501-3 Classifi ed
1. Check the condition of the
damper.
To
DEACTIVATE
the damp-
er,
if activated
, unscrew the
clamping screws
(1)
on the
manual lever and rotate it
(2)
clockwise until the damper is
completely closed.
Beware of the restoring
force of the spring.
1
To prevent accidents
it is
advisable to take care around
the lever’s area of operation,
as outlined in the diagram.
1
2
2
4.5
Dampers with mechanical release and manual reset
4.5.1
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 turn the le-
ver
(1)
anti-clockwise and lock it in po-
sition using the clamping screw
(2)
.
