Bosch GWH 10-2 G Series, Installation Manual And Operating Instructions

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7
Technical Characteristics and Dimensions
6 720 608 992 (2021/02)
2.6 Functional diagram of the heater
Fig. 2 Functional diagram
[1] Pilot burner
[2] Ignition Electrode
[3] Ionisation probe
[4] Heat exchanger
[5] Main burner
[6] Injector
[7a] Burner pressure test point
[7b] Gas inlet pressure test point
[8] Slow ignition valve
[9] Venturi
[10] Temperature/volume selector
[11] Water valve
[12] Plunger
[13] Water flow regulator
[14] Water filter
[15] Hydrogenerator
[16] Cold water pipe [17] Diaphragm
[18] Main gas valve
[19] Maximum gas adjusting screw
[20] Gas supply pipe
[21] Gas filter
[22] Hot water pipe
[23] Ignition unit
[24] Temperature sensor
[25] Servo valve
[26] Power selector
[27] Gas valve
[28] Pilot valve
[29] Pilot injector
[30] Pilot gas pipe
[31] Overtemperature switch
[32] Flue gas safety device
[33] Relief Valve/Drain screw
1 2
3
4
5
6
8
9
10
15
7a
11
12
13
14
16
17 18 19 20 7b 21
23
22
25
24
26
27
28
29
30
31
32
33
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