FR90 fire damper for air transfer applications (Ü-FR)
In air transfer applications, the FR90 fire damper, in combination with the OR4 or OR32 smoke detector and protective grilles, ensures that the air transfer opening is closed at an early stage. The system solution closes reliably when smoke is detected or when the trigger temperature is reached. This effectively prevents the spread of smoke even at temperatures below the trigger temperature of the fire damper.
Technical details
- Compact system solution consisting of a maintenance-free FR90 fire damper with OR4 or OR32 smoke detector, housing extension and protective grille
- Ideal for use in confined installation situations
- Wide range of installation options for the FR90 fire damper tested
- Approval or general type approval from DIBt available
- Time-saving installation thanks to factory-assembled/pre-wired OR4 smoke detector
Declarations & proofs
Product details
The FR90 fire damper, in conjunction with the OR4 or OR32 smoke detector and protective grilles on both sides, is used as a system solution specifically for closing air transfer openings. The DIBt-approved combination serves as a closure in fire-resistant interior walls or ceilings when openings are necessary for the purpose of air transfer.
FR90 for air transfer applications with OR4 or OR32 smoke detector
For closing air transfer openings, the OR4 or OR32 smoke detectors are available pre-mounted on the FR90 fire damper. OR4 or OR32 are protected in the housing extension.
This means that the right solution can be selected for a wide range of installation situations.
Versatile and time-saving installation options
The FR90 fire damper has a wide range of tested installation situations. The option of positioning the actuator at the top, bottom or side of the fire damper increases installation flexibility. The FR90 air transfer application system solution demonstrates its strengths in tight installation situations thanks to its compact design. The OR4 smoke detector can be ordered pre-assembled from the factory. This saves users considerable time when installing the system solution.
Product markings of the Ü-FR fire damper for air transfer applications
The combination solution for air transfer applications has DIBt approval (general type approval). The FR90 fire damper is marked with both a CE mark and an EPD. The FR90 has also been awarded a hygiene certificate by an independent hygiene institute.
Technical specifications
Not all variants listed here can be combined with each other. Use our Wildeboer configurator to easily check the available options.
Nominal size
DN100 - DN125 - DN140 - DN160 - DN180 - DN200 - DN224 - DN250 - DN280 - DN315 - DN355 - DN400 - DN450 - DN500 - DN560 - DN630 - DN710 - DN800
Damper blade design:
Without metal casing - Metal casing made of galvanized steel
Housing design:
Galvanized steel
Limit switch:
Without limit switch - Closed - Open - Open/closed
Activation temperature:
70°C
Smoke detector:
With OR4 basic - With OR4 pro - With OR32, without additional modules - With OR32, with MC and relay module
Installation type:
in solid wall - in solid ceiling - in metal stud wall - in fire/safety partition wall - in wall in timber frame construction - in solid timber wall - in ceiling in timber frame construction - in ceiling in solid timber construction - in ceiling with steel frame - in base on solid ceiling - on solid wall - on shaft wall - on solid ceiling - on base on solid ceiling - away from solid wall - away from metal stud wall - away from solid ceiling
Installation variant:
with mineral wool - with mortar - with partial mortar filling - with square installation subframe RE100 - with square installation subframe RE150 - with round installation subframe RR100 - with round installation subframe RR150 - with square installation subframe RH100 - with square installation frame RH150 - with square mounting frame AE - with square installation frame ER6 - with square mounting frame RV - with soft baffle
Drive type:
Thermal Mechanical with holding magnet - Motorized 24 V - Motorized 230 V
Product pictures
Media & Downloads
Electrical spring return actuator
Installation and mounting subframes
- For simplified installation in tapping drill holes in rigid walls and ceilings as well as in metal stud walls with cladding on both sides
- Only until DN 315
For simplified, also multiple installation in rigid walls and ceilings as well as in metal stud walls with cladding on both sides
As sliding ceiling connection when ceiling subsidence until 40 mm are to be expected and installation in metal stud walls with cladding on both sides
For bolting to rigid walls and ceilings as well as on walls with cladding on one side (shaft walls), with or without metal studs.
For connection to ventilation ducts with fire resistance period. Installation remote from rigid walls and ceilings as well from metal stud walls.
FAQ
The 92 series fire dampers are maintenance-free. Due to their design and the materials used, such as the complete encapsulation of the actuator mechanics, the thermal release device, the motorized actuators, etc., they can do without ongoing maintenance work to maintain their function. Periodic lubrication, for example, is not required. Maintenance is thus limited to functional checks (triggering and reopening of the fire dampers) or repair measures in the event of damage. Hygienic cleaning must be carried out as part of the overall cleaning of the ventilation and air-conditioning system or as required.
Due to the fact that the system is maintenance-free, functional checks may also be carried out remotely. This can be carried out particularly easily and economically via the Wildeboer BS2 communication system for fire dampers with automatic calendar control.
Overflow openings ensure the flow of air between two nearby rooms, e.g. for the ventilation of interior corridors and rooms or for air supply. If overflow openings are provided in fire-resistant walls or ceilings, it must be possible to close them properly. Fire dampers with a smoke release device without connection to a ventilation duct are used here. In the event of a fire, they close the opening and thus prevent the spread of fire and smoke. With the FK90 and FR90 fire damper in combination with OR4 or the OR32 smoke release device, Wildeboer offers solutions with the necessary general type approval from the German Institute for Building Technology, which is required for use in Germany.
