5.11 Operating programme
Normal operation
POWER SUPPLY
t
2
P
H T
P
P G
t
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
F M
M
I D
V 1
S O
L E D
20141167
t
3
1
t
4 i
t
s
Green blink
Blink
orange
No flame during operation
Green blink
Blink
orange
Signal not requested
t
1
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
Green
S O
t
L E D
4 l
Lockout
Key
FM – Fan motor
Green
HT – Heat request
ID
– Ignition device
LED – LED colour inside the button
Fig. 19
PG – Low gas pressure switch
SO – Ionisation probe
t1
– Standby time
20136056
t2
– Initialisation time for checking
t3
– Pre-purging time
t3l
– Checks for presence of extraneous light during pre-
purging phase
t4i
– Total ignition time
t4l
– Reaction time to achieve safety lockout due to lack of
failure
t5
– Delay time between the 1st and 2nd stage
ts
– Safety time
V1
– Gas valve
Fig. 20
22
GB
t
1
t
2
t
l
3
Blink
Red, green blink
orange
20136057
t
s
Lockout
Red
Fig. 21