20
RWA Control Unit
LSF 7000
The permanent contact in the CO2 sensor ensures that
the smoke extraction system is not closed as long as it
has been triggered.
The CO2 sensor has the highest priority in the venti-
lation function.
Connection: Air Quality Meter (CO2 Sensor) and
Room thermostat in the
LSF 7000
C
ontrol
anD
r
elease
u
nits
Air quality meter (CO2 Sensor)
When working in the lift shaft or In the event of a prolonged mal-
function with people trapped in the cabin, carbon dioxide (CO2)
collects in the lower part of the shaft. To prevent personal injury, the
L
iFt
-S
moke
-F
ree
System offers the possibility of connecting a stan-
dard CO2 sensor in the shaft pit. This sensor triggers the opening of the
smoke exhaustion system when the CO2 concentration in the shaft rises.
The CO2 switch for room mounting is based on non-dispersive infrared
technology (NDIR). The switching threshold and hysteresis can be adjus-
ted by a potentiometer on the board.
Air Quality Meter (CO2 Sensor)
Part.-No.:
511231
Application:
Automatic detector for triggering the ventilation
function of the
LSF 7000
Control Unit.
In case of poor air quality in the lift shaft.
Measuring range:
0 … 2000 ppm
Hysteresis:
0
…
75
%
from
MB
Operating voltage:
15 … 35 V DC
Power consumption:
10 mA (max. 0,5 A for 3 s)
Contact:
1
changeover
contact
Switching
capacity:
1
A
(24
V
DC)
Response
time:
<
195
s
Warm-up
time:
<
5
min
Protection rating / Protection class: IP 30
Housing:
Signal
white
/
light
grey
Dimensions:
85
x
100
x
26
mm
1 22
1 13 14 15 16 17 18 19
A
S
B
12
34
LSF7000
+ -
7xPSB
1
1
1
5
71
72
- + - -
+ -
2 3 N N
1
>
ϑ
RF
1 - 2 = Heizen (ZU)
1 - 3 = Kühlen (AUF)
Raumthermostat (0 - 30 °C)
Art.-Nr.: 483200
A
Z
A
Z
1 32 33 35 36 37
2 3 4 5
1
3 - 5 = ZU
3 - 4 = AUF
> CO
2
+ -
Lüftgütemesser (CO2)
Art.-Nr.: 511231
Assembly
The air quality sensor should be installed in the area of the shaft pit,
protected from dust if possible. The connection to the
LSF 7000
is
made according to the wiring diagram. The permanent contact in the CO2
sensor ensures that the smoke exhaustion system is not closed as long
as it is triggered.
Ausschaltpunkt
ppm
2000
1000
500
Relais-Status
Einschal
t-
punk
t
EIN
AUS
Hysterese [% vom Messbereich]
Level [% vom Messbereich]
25% vom
Messbereich
NO = normally open
NC = normally closed
04
Air Quality Meter (CO2 Sensor)
Part.-No.: 511231
Room Thermostat (0 - 30 °C)
Part.-No.: 483200
OPEN
Cool
CLOSE
Heat
(OPEN)
(CLOSE)
Summary of Contents for Lift-Smoke-Free LSF 7000
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