Buderus Logamax plus Service Manual page 30

3 Failures / Errors
Key to Figures :
Expansion vessel
1
Flue gas temperature limiter (STB)
2
Condesing-Heat Exchanger (Recuperator)
3
Water level switch (Condensate backup sensor)
4
Combustion chamber
5
Distribution pipe (Inj. nozzle)
6
Ionisation electrode
7
Safety valve (heating circuit)
8
Autom. air vent valve
9
Circulation pump
10
Pump speed switch
11
Condensate siphon
12
Turbine
13
Condensate water hose
14
Manometer
15
(-) Button
16
Mode Button
17
(+) Button
18
Display
19
Stand-by (On/off) Button
20
Control unit
21
Water filling valve
22
Gas Valve
23
Type lable
24
DHW temperature sensor
25
Ignition electrode
26
Flue gas safety sensor (Combustion chamber sensor)
27
(behind burner)
Flow temperature sensor
28
Temperature limiter for heating block
29
Fan
30
Combustion air inlet
31
Flue gas pipe
32
30 GB012 - 25K