Assa Abloy MSL 24471, Assembly And Operating Instructions Manual

Page: 45 / 136

45
Functions and operation
EN
Self-locking function
The lock is mechanically self locking and the door is, therefore,
always locked when in a closed state. The lock is unlocked by
mechanical actuation.
Functional locking principle
When the door is closed, the extended flip latches (Fig. 5 – 1 ) are
pressed inwards onto the strike plate. If the flip latches are
pressed in, the trip latch can also be (–
2 ) pressed in. When the
door is completely closed, the flip latches slide into the latch
opening in the strike plate and are then extended again. The trip
latch remains pressed in.
When the flip latches are extended and the trip latch is pressed in
at the same time, then the bolts (–
3 ) are released and extended
by a spring mechanism.
The locking process is concluded.
Unlocking function
Unlocking from the inside
The lock can be unlocked from the inside at any time using the panic function.
Day mode (switching function, panic function B)
When Day mode is activated (panic B), the flip latches are blocked and the bolt is retracted to 5 mm. The
door is not considered to be locked, rather just held closed.
Day function (suffix TF)
When the Day function is activated, the flip latches are switched to a soft action setting and work in the
same way as a roller latch. The flip latches are not blocked. Switching in opened door status, 1 x key turn in
closing direction.
Fig. 5 :
1 Trip latch
2 Flip latch
3 Bolt
1
2
3
Panic function
Bolt is retracted up to
5 mm
Functions and operation