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LSC
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LSC 44-M4
99.823.35 1.2/06/09
Taking samples of air through smoke suction over
the complete height of the lift shaft will prevent
spurious release and allow earlier reliably detecting
of smoke.
Optical smoke detectors ca
e
suction on the individual floor levels and the lift will
be automatically run to the main evacuation level.
No interruption of lift operation necessary during
maintenance.
In the LSC-system is an “extended fire control”
integrated. In this process, the predetermined main
evacuation level will be monitored by an optical
n not be used, because
of whirling caused by the lift car, and danger of dirt
accumulation in the lift shaft, as the danger of
spurious release would be very high.
Smoke will be recorgnized earlier through selectiv
On top of that,
a smoke detector according to the standard DIN
VDE 0833-2 + EN 54-7 in the elevator shaft can not
used, because the inflow of the smoke detector can
not occur freely!
Why Smoke Suction?
1 Suction opening
2 Suction tube
3 Domelight
4 Control panel
5 Smoke detector
6 Ventilation button
7 Smoke vent button
RT 43-N
8 Window drive
9 Smoke detector
10 Smoke vent button
RT 43-LSC
11 Smoke vent button
RT 43-H
smoke detector in front of the landing entrance. If
this smoke detector will release, the lift will be run to
the second evacuation level (will be defined by
customer from the operating authority and the local
fire protection)
Furthermore, SHEV-alarm can be triggered as well
by the smoke detector on the main evacuating level
and the smoke vent flap in the lift shaft will be
opened. Release will be effected in dependence of
the DIP-switch setting (S1) on pcb LSM 44. In case
of SHEV-alarm the electric motor driven opening
drive will be triggered by a re-clocking operation.
With this the drives will be triggered again and again
in regular intervals. Consequently the opening
drives, which may have been blocked first, for
example by icing or sticked seals, will be
nevertheless opened.
The same functionality is ensured also for the
control part of the staircase SHEV-system.
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