If the pressure difference is greater than 6 mbar, then the boiler will lock
out. Once the cause of the fault has been remedied, the boiler can be
unlocked by pressing the
button for 2 seconds.
4.2.5
Circulating pump
The boiler does not have a built-in pump. A circulating pump can be
installed on the connector of the standard control PCB. This can be an
on/off pump or a modulating pump (with 0 - 10 V control).
The pump settings can be changed.
See
Manual for the control panel.
For more information, see
Analogue output (Ctrl), page 44
4.3
Main components
4.3.1
Main components C 330 ECO
Fig.4
C 330 ECO
AD-0000521-01
2
1
3
4
5
6
7
8
27
40
28
29
30
32
34
31
33
35
36
37
38
39
11
12
14
13
15
16
17
18
19
20
22
24
26
21
23
25
10
9
1 Flow connection
2 Air pressure differential switch
3 Flue gas outlet
4 Return connection
5 Flue gas measuring point
6 Flue gas thermostat (if present)
7 Condensate collector sealant cap
8 Pivoting castor
9 Adjustment bolt
10 Frame
11 Second return connection
12 Heat exchanger insulation kit (if present)
13 Boiler casing
14 Air supply
15 Burner
16 Adapter
17 Ignition/ionisation electrode
18 Heat exchanger
19 Inspection trap
20 Temperature sensor for heat exchanger
21 Return temperature sensor
22 Gas filter
23 Data plate
24 Siphon
25 Transport wheels
26 Adjustment bolt
27 Gas connection
28 Gas pressure measuring point
29 Control panel
30 Installation option for weather-compensated boiler
control
31 Pressure measurement point
32 Flame inspection window
33 Non-return valve
34 Fan
35 Extension piece
36 Venturi
37 Gas valve unit
38 Air supply hose
39 Document holder
40 Ignition transformer
4 Description of the product
20
7600532 - v.11 - 13122018