5
Lockout procedure
Flame disappearance :
When the ionisation electrode 8 does not
detect flame presence. The orange indi-
cator led
34 extinguishes. A lighting
cycle starts. If a flame is not detected,
before 10 seconds, the safety solenoids
will close. The lockout red indicator
35
lights and the display shows the error
code. The pump runs and the 3 way
valve
17 stays in its position. After a few
seconds, it will become possible to reset
the boiler by pressing the reset key
36.
Overheat detection :
If an overheat (over 100°C) is detected in
the primary circuit by the sensor 23, the
safety solenoids close and the fan stops.
The orange led
34 extinguishes and the
pump remains running for 3 minutes.
The reset will be possible when the pri-
mary temperature will decrease under
76°C.
CENTORA GREEN FUNCTIONAL DIAGRAM
Heating mode
Hot water mode
40
49
48
43
41
20
39
38
37
22
19
21
23
18
17
16
14
13
12
6
3
8
15
5
7
DIAGRAM
ELECTRICAL WIRING
