37
COMMISSIONING AND MAINTENANCE
Lockout caused by ignition failure
t
1
t
3
t
5i
t
2
t
4i
t
s
HT
FM
ID
V
F
P
LED
M
t
3i
POWER ON
Flashing green
Red
Flashing orange
Lockout
Signal not needed
HT Heat request
FM Fan motor
ID Ignition electrode
V Fuel oil valve
F Flame detector
LED Colour of button LED
Lockout caused by extraneous light during pre-purging
t
2
t
1
P
M
t
3
l
t
s
HT
FM
F
V
LED
ID
Lockout
Red
Flashing orange
POWER ON
Flashing green, red
Flashing
green
Cycle times
t0
-
-
t1
≤
1
t2
-
3.5
t2l
-
25
t2p
max
600 (*)
t3
-
15
t3l
≤
25
t3i
-
2
ts
-
5
t4i
-
10
t4l
≤
1
t5i
-
3
-
-
0.4
-
-
0.8
tr
3 repeats
tpp
10
Times are expressed in seconds.
(*) independent of burner controller