6
Lockout procedure
Flame disappearance :
When the ionisation electrode
8 does not
detect flame presence. The orange indi-
cator led
37 extinguishes. A lighting
cycle starts. If a flame is not detected,
before 10 seconds, the safety solenoids
will close. The lockout red indicator
38
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
39.
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
37 extinguishes and the
pump remains running for 3 minutes.
The reset will only be possible once the
primary temperature has dropped below
76°C.
CALYDRA GREEN FUNCTIONAL DIAGRAM
17
18
19
20
21 23 24
26
27 28
29
30
31
33
32
34
36
37
38
39
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
22
25
35
17
18
19
20
21 23 24
26
27 28
29
30
31
33
32
34
36
37
38
39
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
22
25
35
Heating mode
Hot Water mode
DIAGRAM
ELECTRICAL WIRING
