baltur SPARK 18 DSGW Betriebsanleitung Seite 21

Extraneous light / advanced ignition
During the pre-ventilation and/or pre-starting phase there shall
be no flame signal. Should the signal be present, for example
for advanced ignition due to bad tightness of the electrovalve,
external lighting, short-circuit in the photo-resistance or in the
connecting cable, a breakdown in the flame signal amplifier,
and so on., when the pre-ventilation and safety time has
elapsed, the control-box brings the burner to the emergency
stop and cuts off fuel inflow even during the safety time.
No flame
If there is no flame at the end of the safety time, the control-
box stops the burner immediately.
No flame during operation
If there is no flame during operation, the control-box cuts off
fuel and automatically repeats a new starting program: once
the "t4" time has elapsed, the starting program is over.
Every safety stop of less than 1 second switches off voltage
to terminals 3 - 8 and 11: in the same, by means of terminal
10, it is possible to provide a remote signal of emergency
stop. Resetting of the control-box is possible after approx. 50
seconds of emergency stop.
Program Legend
Control-box output signals
Input signals required
A' Beginning of starting cycle for burners
with light-oil pre-heater "OH"
A Beginning of starting cycle for burner
without light-oil pre-heater
B Flame presence
C Normal operation
D Adjustment stop by "R"
Execution Tension
V ~
230V / 240V
Normal
230V / 240V
CONTROLS IN CASE OF OPERATION PROBLEMS
Type Safety at
low voltage
Without
•
base
LOA21.171B27 -
LOA24.171B27 •
tw Light-oil pre-heating time until
operation consent by contact "OW"
t1 Pre-ventilation time
t3 Pre-starting time
t2 Safety time
t3n Post-starting time
t4 Time interval between flame presence and
connection of 2nd valve to terminal 5
Pre - Pre - Safety time
ventilation starting
t1 t3
13 s 13 s
13 s 13 s
21
Post -
starting Interval
t2 t3n
max
10 s 15 s
10 s 15 s
Time
BV1 -
BV2t4
15 s
15 s