APPLIANCE INFORMATION
6 720 803 800 (2012/11)
7
BOILER FEATURES
• High pressure die-cast aluminium heat exchanger
• Low NOx emissions
• Fixed gas valve settings
• Direct burner ignition
• Zero pressure governor gas valve with fully modulating fan
• Display for boiler status and access to diagnostics, system and
commissioning parameters
• Digital control system
• Memory retention after power interruption
• Low electrical power consumption during operation and stand-by
modes
• Modulating pump
• Condensing in CH and DHW modes
• Three star Hot Water Comfort measured to EN13203 Part 1 in
comfort mode with DHW pre-heat ON
• Eco mode, to use gas on demand
• Plate type DHW heat exchanger
• Ability to pre-plumb condensate drain, CH flow, DHW Outlet, Gas,
DCW In, PRV and CH Return connections
• Syphonic condensate trap
• Galvanised steel wall mounting frame
• Standard wall frame provides vertical pipe route behind the boiler
• Compatible with all Worcester standard and intelligent controls
• Condensfit II flue systems 60/100 and 80/125 mm allows plume
re-direction as standard and ability to attach plume management kits
1
Wall mounting frame
29
Flow temperature sensor (NTC)
2
Expansion vessel
30
Electrode assembly
3
CH return isolating valve
31
Maximum safety sensor (NTC)
4
DCW mains isolating valve
32
Auto air vent
5
Gas isolating valve
33
Aluminium Silicon Heat exchanger
6
DHW outlet connection
34
Flueway
7
CH flow isolating valve
35
Sump assembly
8
Condensate drain connection
36
Pressure gauge connection point
9
Flue connector
37
Diverter valve actuator (stepper motor)
10
Flue overheat thermostat
38
Diverter valve body
11
Main superstructure
39
Modulating pump
12
Case
40
Drain point
13
Case retaining screws
41
CH return connection to isolating valve
14
Bottom panel
42
PRV
15
Case retaining clips
43
DCW in connection to isolating valve
16
Control panel
44
PRV Connection pipe
17
Control panel menu buttons
45
Gas pipe from isolating valve
18
Blank for optional programmer
46
DHW outlet pipe
19
Diagnostic port - Worcester service engineer
47
DHW temperature sensor (NTC)
20
Pressure gauge
48
CH flow pipe to isolating valve
21
DHW temperature control
49
Condensate siphon drain pipe
22
Boiler identification label
50
Condensate siphon
23
Operation/fault indicator (blue)
51
DHW Plate heat exchanger
24
Control panel flap
52
Expansion vessel connection
25
Boiler fascia guide location
53
Return temperature (NTC)
26
CH temperature control
54
Gas valve
27
Boiler display
55
Combustion air inlet
28
Fan
56
Ignition transformer
Table 4 Boiler components
