3367
11
GB
4.7.2 LOCKOUT DUE TO FIRING FAILURE
D7888
KEY TO LAY-OUT
F
– Flame detector
I
– Ignition transformer
LED
– Reset button LED indicating
operating status
MV
– Fan motor
TL
– Limit thermostat
V1
– Oil valve 1
st
stage
V2
– Oil valve 2
nd
stage
4.7.3 LOCKOUT DUE TO EXTRANEOUS LIGHT
DURING PRE-PURGING
OPERATING TIMES
Time is expressed in seconds
t1
max
1
t4I
max
1
t1I
max
30
t4i
-
8
t2
-
3
t5
-
8
t2l
max
30
t5i
-
3
t3
-
15
t6
max
360
t3I
max
1
t6I
max
30
ts
-
5
t7
-
120
Red
Green + Yellow slow flashing
Green + Yellow fast flashing
Green
Green + Yellow medium flashing
Red + yellow fast flashing
t
2
t
1
t
3
t
4i
t
s
TL
MV
I
V1
F
LED
P
M
V2
t
5i
D7878
Green
Red
Green+Yellow
F
LED
.
t
2
t
1
t
3
TL
MV
I
V1
P
M
V2
t
s
t
3l
Red+Yellow
Lockout
Green
D7879
