Fig. 42: Damper blade position indicator
①
Damper blade closed
②
Damper blade open
8.2
Fire damper with spring return
actuator
Status indicator
Fig. 43: Thermoelectric release mechanism
①
Toggle switch for functional test
②
Indicator light
The indicator light ② for the thermoelectric release
mechanism is illuminated when all of the following con-
ditions apply:
Power is supplied.
The thermoelectric release is in order.
The toggle switch is
not being pushed.
Closing/opening the damper blade with spring
return actuator
Fig. 44: 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
Power is supplied
1. Push toggle switch ① and hold it.
ð
This interrupts the power supply, and the
damper blade closes.
2. Check if the damper blade is CLOSED, check run-
ning time.
3. Release the toggle switch ①.
ð
Voltage is supplied again, and the damper
blade opens.
4. Check if the damper blade is OPEN, check run-
ning time.
Damper blade position indicator
The position of the damper is indicated by the pointer on
the actuator.
Functional test
Fire damper with spring return actuator
Fire damper Type FKRS-EU 53
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