Worcester CDi Combi N.G Service Booklet page 7

49
48
47
46
45
Fig. 4 This diagram shows the compact hydraulics and controls with the mantel and fascia panel removed
25 Compact hydraulic mounting screw (2) to boiler
26 Flow unit
27 Auto air vent
28 Return connection to boiler heat exchanger
29 Unused port
30 Pump
31 Pressure relief valve
32 Diverter valve housing
33 Central Heating return connection to service valve
34 Drain point
35 Internal bypass within plastic moulding
36 Central Heating flow connection to service valve
37 System pressure gauge
38 Display
39 Fault reset button
40 ECO button
8 716 115 748 (2009/09)
Supplied By www.heating spares.co Tel. 0161 620 6677
25
36
44
43 42
26
27
28
35
33
34
37
38
39
40
41
8716115 748-04.1Wo
41 Holiday button
42 DHW temperature control
43 Power ON/OFF indicator / diagnostic light (blue)
44 Central Heating temperature control
45 Position for option controller
46 Central heating boost button
47 Service button
48 Burner on indicator light (green)
49 Power ON/OFF switch
LAYOUT OF BOILER
29
30
25
31
32
7