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| Circular fire damper user manual 03/2020
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|
Circular fi
re damper user manual 03/2020
To open the damper, insert the screwdriver into
the shaft (parallel to the ventilation duct axis)
and turn counterclockwise
To close the damper, press the thermal fuse
head with a screwdriver
OPTIONS
•
For this self-operating version, the double contact – S and the 4-contacts – S2 - are
available as an option (factory option or after-sales kit):
The 4-contact – S2 - consists of:
•
electric limit switch indicating CLOSED position
•
electric limit switch indicating OPEN position
•
additional electric limit switch indicating CLOSED position
•
additional electric limit switch indicating OPEN
FD25/FD40 solenoid mechanism version: EVO T
Activation:
•
Manual activation: Push the release button.
•
Self-operating activation: With a fuse at 72 ºC
•
Remote activation: By emission or break of current (solenoid with 24/48 V automatic
voltage)
Resetting:
•
Manual reset: Turn the lever counterclockwise
Reminder:
•
For this version with remote activation, the double contact S (OPEN / CLOSED) are mounted
as standard equipment
•
The 4-contact – S2 - are available as an option (factory option or after-sales kit).
7.Electrical connections
FD25 MANUAL FUSE ONLY MECHANISM
•
Electrical wiring of the S option
Electronic control board
FC = Limit switch - end
C = common
NF = normally closed
DC = Limit switch - start
NO = normally open
Electrical specifications
FD fuse only
FD fuse only upgradable t
Nominal voltage
N/A
Solenoid: 24/48 VDC
(automatic change on the electronic card)
Power
N/A
Dual voltage SOLENOID:
• Break of current: Pnom = 1.6W
Switching capacity
1mA…500mA,
5VDC…48VDC
1mA…500mA, 5VDC…48VDC
Blade closure time
Blade opening time
Spring: 1 second
Manual
Spring: 1 second
Degree of protection
IP 42
IP 42
