Door sequence selector SR 90
Double-leaf doors closed in the correct order
Characteristics
- It is mandatory to equip double-leaf hinged fire and smoke doors with a door sequence selector
- They ensure that the door leaves close in the right order and thus reliably prevent the spreading of fire or smoke
- Affordable model with lever arm and two support brackets which are mounted as counterparts for the door sequence selector on the door leaves
- Tested and approved according to DIN EN 1158 for its use on double-leaf fire protection doors.
Product details
Technical data
| Surface | zinc-plated steel |
| Weight of door leaf | max. 200 kg per door leaf |
| Width of door leaf | up to 1.60 m per door leaf |
| Space required above the door | minimum 30 mm |
| Righting angle | 30° to 70° |
Function
The SR 90 door sequence selector remains unfolded when only the finally locking leaf is opened. Every time both door leaves are opened the telescopic arm of the SR 90 door sequence selector is automatically set in an upright position by the integrated leg spring.
The SR 90 door sequence selector now controls the correct closing sequence of both door leaves: The door leaf to close finally (locking door leaf) hits the cushioned arm of the door sequence selector with the pin of the support bracket mounted on the door leaf and is kept in this position…
… until the latch leaf with support bracket moves laterally across the arm of the door sequence selector and…
… during closing takes the telescopic arm back with it to its closed position. When the telescopic arm lies flat against the door frame, the locking leaf is released and…
… can now close
Dimensions
Alle Abmessungen in mm
Installation
Installation notes
First, fix both support brackets to the upper middle corners of both door leaves with the included hexagon socket screws (M8x16 DIN 7991). The exact dimensions for the position can be found on the dimensioned drawing.
Then, screw the door sequence selector to the door frame with the included M8x16 hexagon socket screws. The countersunk head screw should go into the hole with countersink, the cylinder head stud should fit into the oblong hole. Please make sure that the door sequence selector runs absolutely parallel to the door lintel when closed. You can adjust the horizontal position by loosening the M8 cylinder head stud in the oblong hole and moving the base of the door sequence selector slightly around the countersunk head screw.
When in an upright position, the telescopic arm must hit the pivot of the support bracket directly on the locking leaf (the last one to close). The upright position of the telescopic arm can be adjusted with the adjustment screw at the base of the door sequence selector. Make sure that the nut is properly tightened again after each adjustment
Dimension A depends among others on the thickness of the door leaf and its width.
It should be chosen so that
- there remains a safety gap (S) of minimum 30 mm when the latch leaf closes
- the pushing flap opens the locking leaf so far that the SR 90 door sequence selector will support it
In this diagram you can see a rough specification for dimension A depending on the width of the door leaf and its thickness.
Installation instructions
Order information
Order Information
| Description | Part No. |
|---|---|
| SR 90 door sequence controller, with 2 support brackets and screws, packed in plastic bag, LE 02001 | 500420P |
