5.11 Operating programme
Normal operation
POWER SUPPLY
t
2
P
H T
P
P G
t
1
F M
M
I D
V 1
S O
L E D
S O
L E D
Lockout due to ignition failure
POWER SUPPLY
t
2
P
H T
P
P G
t
1
F M
M
I D
V 1
S O
L E D
20141167
t
3
t
4 i
t
s
Green blink
Blink
Green
orange
No flame during operation
Green blink
Blink
orange
Green
Signal not requested
t
3
t
4 i
t
s
Lockout
Green blink
Blink
orange
Red
Installation
Lockout due to extraneous light during pre-purging
20136055
POWER SUPPLY
P
H T
P
P G
F M
M
I D
V 1
S O
t
L E D
4 l
Lockout
Key
FM – Fan motor
HT – Heat request
– Ignition device
ID
LED – LED colour inside the button
PG – Low gas pressure switch
Fig. 17
SO – Ionisation probe
– Standby time
t1
20136056
– Initialisation time for checking
t2
– Pre-purging time
t3
– Checks for presence of extraneous light during pre-
t3l
purging phase
– Total ignition time
t4i
– Reaction time to achieve safety lockout due to lack of
t4l
failure
– Safety time
ts
– Gas valve
V1
Fig. 18
22
GB
t
1
t
2
t
l
3
Blink
Red, green blink
orange
20136057
t
s
Lockout
Red
Fig. 19