Technical data

3
FUNCTIONING
Switching on
1) Check that the gas service tap is opened at the gasmeter and
m
ain power is on.
2) Check that pressure in central heating system is above 0.7 bar
and below 1.5 bar with the pressure gauge
31.
3
) Open the gas tap
3
6
.
4) The boiler is now ready to use.
5) Turn main switch
23 to position I . The green "power on" indi-
c
ator
2
7
w
ill light.
Hot Water
1) Turn the DHW temperature control knob clockwise 24. The
D
HW indicator will light
3
2
.
2) Turn on a hot water tap, the orange "burner on" indicator
will light
28 and the water will become hot..
Heating
1)Turn the CH thermostat control knob clockwise 25 The CH
indicator will light
33.
2) If the room thermostat (if fitted), the boiler temperature control
and the clock (if fitted) are all calling for heat, the orange
"burner on" indicator will light and the heating will be on.
Fig. 3
CALYDRA FUNCTIONAL DIAGRAM
4
5
9
7
14
8
54
2
11
13
15
12
6
10
55
17
20
19
1
3
52
18
Control panel
I
r
eset
23
32
242531
26
2729
30
28
33
Fig. 4
Hot water mode
Fig. 5
Heating mode
52
50
8
3a
1
19
51
17
20
4
5
18
15
16
9
7
14
ac
b
6d
6c
6
12
13
53
34
36
35
37
38
21
10
Fig. 6