Worcester CDi Combi N.G Service Booklet page 9

Fig. 6 Front of the control panel
1 Flame viewing window
2 Ignition electrode and flame sense electrode
3 Heat exchanger
4 Overheat thermostat
5 Access point for cleaning heat exchanger
6 Condensate hose
7 Drain point
8 Trap / syphon outlet connection (22 mm plastic pipe)
9 CH return
10 Gas inlet connection 22 mm compression
11 Cover for external wiring connections
12 Control panel in service position
13 Access cover for transformer & PCB
14 CH flow
15 Inlet pressure test point
16 Trap / syphon
17 Gas valve
18 Air / gas adjustment screw
19 Testing point for fan pressure
20 Fan
21 Primary sensor
22 Auto air vent
23 Removable top case panel for servicing
24 Display
25 Fault reset button
26 Non functional on CDi Regular
27 Holiday button
28 Mains On/off indicator/diagnostic light (blue)
29 CH temperature control
30 Central heating boost button
31 Service button
32 Burner on indicator light (green)
33 Master switch on/off
8 716 115 748 (2009/09)
Supplied By www.heating spares.co Tel. 0161 620 6677
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8716115748-02.1Wo
LAYOUT OF BOILER
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