SE_20200507_HTE 400_M
36
HT400 Rectangular fi re damper - UNI EN 1366-2 Certifi ed - UNI EN 13501-3 Classifi ed
TO RESTORE DAMPER OPERATION FOLLOW THE INSTRUCTIONS OUTLINED HERE IN REVERSE ORDER.
NB:
THE ACTUATOR’S CROSSHEAD CLAMPING SCREW AT THE PIN HEAD MUST BE TIGHTENED TILL IT REACHES THE SCREW SUPPORT
ON THE BLACK INDICATOR ARROW, WITHOUT ANY PRESSING.
1
4.4
Dampers with Schischek electric actuator
ExProTT - InProTT thermal fuse
4.4.1
Procedure for replacing dampers with height < 250 mm
1. Check the condition of
the damper
DISCONNECT
the actua-
tor and wait for the damp-
er to close completely.
2.
Loosen the crosshead clamping screw
on the control pin and the actuator’s two
M4 clamping screws with a fl at screw-
driver.
3.
Slip the actuator off the control pin,
taking care with the 12
x
12 board
adapter
(1)
4.
Dismantle the thermal fuse by unscrewing the two cross-
head screws.
5.
Remove the thermal fuse and replace either the fuse alone
or the entire actuator/thermal fuse arrangement.