4.7.2 LOCKOUT DUE TO FIRING FAILURE
P
TL
t
1
t
2
MV
M
I
V1
V2
F
LED
4.7.3 LOCKOUT DUE TO EXTRANEOUS LIGHT
DURING PRE-PURGING
P
TL
t
1
t
2
MV
M
I
V1
V2
F
LED
3363
t
3
t
4i
t
s
Green
t
3
t
3l
.
Lockout
Green
KEY TO LAY-OUT
F
I
LED – Reset button LED indicating
MV – Fan motor
TL – Limit thermostat
V1 – Oil valve 1
V2 – Oil valve 2
t
5i
Green+Yellow
Red
D7878
D7888
OPERATING TIMES
t
s
Time is expressed in seconds
Red
D7879
11 GB
– Flame detector
– Ignition transformer
operating status
st
stage
nd
stage
Red
Green + Yellow slow flashing
Green + Yellow fast flashing
Green
Green + Yellow medium flashing
Red + yellow fast flashing
t1
max
1
t1I
max
30
t2
-
3
t2l
-
30
t3
-
15
t3I
max
1
ts
-
5
t4I
max
1
t4i
-
8
t5
-
8
t5i
-
3
t6
max
360
t6I
max
30
t7
-
120