Closing the damper blade using the crank handle
Fig. 47: Functional test
CAUTION!
Danger of injury when reaching into the fire damper
while the damper blade is moving. Do not reach into
the fire damper while actuating the release mecha-
nism.
Requirement
The damper blade is OPEN
1. Insert the crank handle ① into the opening for the
spring-winding mechanism. (The crank handle is
clip-fixed to the connecting cable.)
2. Rotate the crank handle by approx. 90° towards
the 'unlock' position until a click can be heard.
ð
The damper blade closes.
3. Remove the crank handle.
Functional test
Fire damper with spring return actuator
Fire damper Type FKRS-EU 55
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