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FDR-3G
Technical Parameters
Durability test
• 50 cycles/manually operated activation mechanism – with no change of the required properties
• 10000 + 100 + 100 cycles/actuator operated activation mechanism – with no change of the required properties
Fire testing pressure
Underpressure up to 300 Pa
Safety position
Closed. (In fire scenario the damper closes via spring in actuator or spring in manual mechanism)
Airflow direction
Both directions
Allowed air velocity
Damper can still operate at max. 12 m/s. Air without any mechanical or chemical contamination
Side with fire protection
Depending on installation classification: From both sides (i <-> o)
Repeated opening
Suitable for daily check procedure. It is not possible to operate the device after reaching Activation temperature.
Activation Temperature
• Manually operated: 74 °C as standard by means of a spring after the melting of the thermal fuse.
• Actuator operated: 72 °C as standard (95 °C or 120 °C on request with Belimo actuator) by means of the spring after
current interruption in the electro-thermal fuse.
Operational temperature
• Minimum: 0 °C
• Maximum: 60 °C for 74 °C and 72 °C thermal fuse
• Maximum: 85 °C for 95 °C and 100 °C thermal fuse
• Maximum 105 °C for 120 °C thermal fuse
Environment suitability
Protected against weather disruptions, with temperature above 0 °C, up to 95% Rha, (3K5 according to EN 60721-3-3)
Open/Closed indication
• Manually operated microswitches - Activation types H2 up to H6-2
• Actuator operated built-in microswitches - Activation types B230T/G230T up to B24T-SR/G24T-SR
Closing/Opening time
Manually operated < 10 s, actuator operated < 20 s
Maintenance
Not required. Dry cleaning if demanded by law in the country in which the dampers are installed.
Revisions
Determined by law in the country in which the fire dampers are installed but at least every 12 months.
Allowed pressure
1200 Pa
Blade tightness (STN EN 1751)
Class 3 as standard
Tightness of the housing (STN EN 1751)
Class C as standard
Summary of Contents for 163262
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Page 67: ...Systemair DESIGN 2022 07 11 Handbook_FDR_3G_en GB Original instructions ...