20063754
22
GB
Start-up, calibration and operation of the burner
6.5
Operation sequence of the burner
6.5.1
Regular operation
Operating times
(in seconds)
Tab. E
Tab. F
t
4i
t
s
t
4L
AD
M
I
V
SO
LED
LED
M
M
.
t
1
SO
t
2
TL
P
t3d
t3
Key (Fig. 20)
I
Ignition transformer
LED
Reset button LED indicating operating status
M
Fan motor
SO
Ionisation probe
TL
Limit thermostat
V
Gas valve
AD
Air damper opening motor
D7400
MV = idle
Flame loss during operation (Recycle max. 3 attempts)
Lockout
Red (LED signalling)
Green (LED signalling)
No signal needs to be received
Green
Re
d
Green
Fig. 20
t1, t3l, t4l, t4a
t2l
t2, t4i
t2a
t3
t3a
t3d
t3r
ts
t6
max
max
-
-
-
max
-
max
-
max
1
30
3
120
40
15
4
70
5
360
t1
Standby time pending an input signal to control box: re-
action time, the control box remains idle for the time
t1
.
t1I
Flame or flame simulation detected before demand for
heat: the control box remains idle.
t2
Standby time after a heat request: the control box re-
mains idle for the
t2
time.
t2a
Check whether the air pressure switch has already been
moved to the work position before the required heat: the
control box remains in standby status, a lockout follows
if the air pressure switch remains switched for the
T2a
time.
t2I
Flame or flame simulation detected before during stand-
by time: lockout occurs if flame or flame simulation per-
sists for time
t2l
.
t3
Pre-purge time: start of the fan motor.
t3a
Time for checking the switching of the air pressure
switch in the operating position during the pre-purging
time: if the pressure switch does not switch within
t3a
a
lockout follows.
t3d
Opening time of air damper opening motor: time to reach
the opening position of the electric damper.
t3I
Flame or flame simulation detected during pre-purging:
immediate lockout.
t3r
A recycle attempt is made if there is a pressure drop dur-
ing the pre-purging stage:
there is then a lockout in the event of a second loss of
air pressure between the 16th second and the 29th; is a
loss of pressure between the 30th second and the 40th,
the device goes immediately into lockout mode.
ts
Safety time: if at the end of the
ts
time there is no flame,
a lockout follows.
t4a
Air pressure drop checking time during the
ts
time and
the normal operation:
the control box locks out immediately.
t4i
Transformer ignition time: total ignition time.
t4l
Loss of flame during operation: maximum reaction time
for dropped valve - after 3 recycle attempts there is a
lockout.
t6
Post-purge time: additional purging time on the opening
of the heat limit thermostat (
TL
).
Содержание 40 GS3
Страница 2: ...Translation of the original instructions...