Door sequence selector SR 2000

The unobtrusive door sequence selector

Characteristics

  • Especially designed for double-leaf fire doors which should meet high aesthetic requirements
  • Can be mounted discreetly below the door frame behind the door leaves
  • No need for separate support brackets on the door leaves
  • Tested and approved according to DIN EN 1158 for their use on double-leaf hinged fire doors

Product details

Technical data

Surfacezinc-plated steel
weightmax. 160 kg per door leaf
Door leaf width0.75 m to 1.50 m per door leaf
Space required below the frame20 mm
Righting anglemax. 115°

Function

Door sequence selector - installationAs soon as both door leaves open, the telescopic arm of the SR 2000 door sequence selector is activated by the integrated traction spring.

During closing, the active (locking) leaf that closes last, hits the telescopic arm of the door sequence selector with its back (1) and stays in this position until the closing passive (latch) leaf touches the release roller of the small arm (2) and folds in the small arm of the door sequence selector. This also folds in the telescopic arm (1) and sets the active leaf free. Then the active leaf can also close completely.

If only the active leaf is opened, both door sequence selector arms remain folded in.

In case of the SR 2000 E with electromagnetic lock, both arms will unfold only if an has been triggered by one of the connected smoke detectors.

Dimensions

All dimensions in mm

Door sequence selector - dimensions

Installation

Installation notes

Door sequence selector - installationThe minimum width of a door leaf is about 750 mm. For doors with less than 1000 mm width per leaf you need to choose the short version of the SR 2000 door sequence selector (hatched area). Exception: with door leaves 100 mm-thick the short type can be used up to 900 mm door width only.

Fit the door sequence selector from below to the frame with two M5x30 hexagon socket screws. Make sure the door sequence selector runs parallel to the door. The front edge should be about 1 mm from the door leaves.

It is important that in its upright position the telescopic arm hits the active door leaf at exactly 90°. This angle can be adjusted with a screw at the bottom of the telescopic arm. With doors made of thin sheet steel we recommend using a reinforcement plate in which the telescopic arm hits the leaf (the distance to the pivot point of the door is approx. distance X less 65 mm).

The roller on the release arm can be adjusted by an eccentric screw, so that the passive leaf closes completely and the telescopic arm folds up entirely. Remember to tighten the counter nut again.

After installation, check the proper function of both arms and the adjustment of the angle of the arms.

Door sequence selector - installationImportant installation advice

When fitting the selector, both washers furnished along with the selector have to be inserted between the casing of the selector and the door frame to avoid any twisting between frame and casing – see drawing.

Max. torque when tightening the screws: 4.5 Nm
(If the screws are tightened too much, the casing of the selector might be slightly distorted and thus a proper function of the selector be prevented.)

The function of the selector might be impaired by exterior influences. That is why it must not be painted, plastered of modified in any way.

Dimension X

  • should be chosen so that there remains a safety gap (S) of minimum 30 mm when the latch leaf closes.
  • should to be chosen so that the telescopic arm hits the locking leaf at an angle of exactly 90°.

In this diagram you can see a rough specification for the dimension A depending on the width of the door leaf and its thickness.

Order information

Order Information

DescriptionPart No.
SR 2000 L door sequence selector, length 1050 mm, LE 02005500430
SR 2000 K door sequence selector, length 650 mm, LE 02004500435

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