Table of Contents
Advertisement
1.7
Function (with optional extra motorised valve)
Fig. 3
4
Bosch Heatronic control
6
Temperature limiter, heat exchanger
7
Testing point for gas supply pressure
8.1
Pressure gauge
9
Flue gas temperature limiter
13
Manifold
15
Safety valve
18
Central heating pump
20
Expansion vessel
26
Charging valve
27
Automatic vent
29
Mixer unit
29.1
Bi-metallic thermostat for combustion air compensation
30
Burner
32
Flame sensing electrode
33
Igniter electrode
35
Heat exchanger with cooled combustion chamber
36
Temperature sensor in CH flow
43
CH flow
45
Gas inlet
47
CH return
52
Solenoid valve 1
52.1
Solenoid valve 2
55
Filter
56
Gas valve CE 427
57
Main valve disc
61
Reset button
63
Adjustable gas flow restrictor
64
Adjusting screw for min. gas inlet flow volume
69
Control valve
6 720 611 443 GB (05.04)
71
Storage water heater outflow (only with optional motorised
valve)
72
Storage water heater return (only with optional motorised
valve)
84
Motor (optional extra)
88
3-way valve (optional extra)
221
Flue duct
226
Fan
229
Inner casing
317
Display
358
Condensate trap
423
Siphon
443
Diaphragm
Details of the appliance
6 720 611 443 -02.1O
7
Advertisement
Table of Contents
