33
Operation
Automatic Furnace Controller LAL... / LOK...
Regulator KS 92
The automatic furnace controllers LAL...
and LOK... are designed to control and
monitor burners of stepless or modula-
ting mode of operation. For a detailed
functional description of the automatic
furnace controllers with technical data
and design information see the enclos-
ure hereto and further descriptive mate-
rial.
Technical documents
LAL 2.25
LOK 16 L & G 7785 June 1996
Funktional diagram LAL ... / LOK ...
A
= Start command
A-B = Flame formation interval
B
= Burner operating position
has been reached
B-C = Burner operation (heat
generation)
C-D = Regular shut-off
t1
Pre-flushing time
t2
Safety period
t3
Short pre-ignition time
t4
Option: interval between voltage
on terminal 18 and terminal 19
(valve 1 and 2 will open at the
same time)
t5
Interval between voltage on
terminal 19 and terminal 20
(interval between valve 2 and
controller enable)
t6
After-flushing time
t7
Interval between start command
and voltage on terminal 7
t11
Air damper operating time
(OPEN)
t12
Air damper operating time (MIN)
t13
Permissible after-burning time
t16
Interval to OPEN command for air
damper
R
Temperature or pressure controller
G
Blower motor
Z
Ignition transformer
BV
Fuel valve(s)
LR
Load controller
LK
Air damper
RV
Steadily adjustable fuel valve
FS
Flame signal
In steplessly variable burners use is
made of the KS 92 industrial controller.
This has specifically been designed for
use with furnace systems, preferably for
temperature and pressure controllers in
conjunction with burners featuring
steplessly variable fuel throughput
rates. For adjusting the controller to the
controlled condition, the desired set-
point range and the way of detecting the
actual value, the software configuration
is structured accordingly.
Technical documentation
KS 92 PMA