User Manual

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Building Technologies Division CC1N7785en
20.11.2017
Connection examples
LGK16...
N
BV1
16 17 18 19
BV2
7785a03/1295
Z
Doubling of safety time with expanding flame burners
when using burner control LGK16.335... or LGK16.635...
By connecting terminals 17 and 18, the safety time is
doubled and the preignition time reduced by 50%.
Before using this circuit, it must be ensured that the
longer safety time is in compliance with national
standards and regulations etc. and with the construction
of the burner plant!
LOK16...
18
19
17 9 20
11
10
8
LR
BV1
BV2
N
LK
6
7785a09/0396
Control of the actuator during operation by feeding control
signals to terminal 17
6
4
W
R
N
M1
d1
d1/d2
5141213
7785a11/0196
Wiring required for operation without air pressure
supervision
If an auxiliary contact of the fan contactor is included in
the circuit as shown in the diagram, ignition and fuel
release are possible only when the contact is closed.
LOK16.../LGK16...
W
5
0
12
LP
13 14 4
L3
I
3
AL
N
GP
7785a05/1295
Semiautomatic startup
The burner is switched on manually by pressing button I.
Then, the burner control programs the startup sequence
and flame supervision.
The burner is switched off manually by pressing button 0, or automatically by the limit
thermostat or pressure switch (W), or by gas pressure switch (GP).
Signal lamp (L3) indicates when the burner control is ready to be started; it extinguishes
shortly after the burner is switched on.
For the other connections, see to the connection diagrams.
9
M
v
az
BV2
LK
7785a08/0196
10 8
SA
LR
19 20
11
N
Connecting of actuators without end switch for the
CLOSED position
Switch (Z) is set to low-fire
19 20
911
10
86
BV2
N
BV3
7785a10/0396
Control of a fuel valve by terminal 20 in the case of
burners without air damper or with an air damper not
controlled by the burner control.
The relay is not required if the valve connected to terminal
20 is hydraulically series-connected to a valve controlled
by terminal 18 or 19.
If no actuator is used, terminal 8 must be connected to
terminal 6.