Electrical Diagram - Bosch 830 ES Manual
Temperature modulated with electronic ignition suitable for heating potable water and space heating (intended for variable flow applications)
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Also See for 830 ES:
- Installation and operating instructions manual (80 pages) ,
- Technical service bulletin (2 pages) ,
- Applications manual (107 pages)
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Electrical diagram
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20
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Fig. 67 Electrical scheme
[1]
Intlet water temperature sensor
[2]
Outlet water temperature sensor
[3]
Backflow temperature sensor
[4]
Cascading output connection
[5]
Cascading input connection
[6]
Ionization sensor
[7]
Water flow sensor
[8]
Flue gas limiter
[9]
Heat exchanger overheat sensor (ECO)
[10] Gas valve
[11] Jumper resistance
[12] Water valve
[13] Primary fan
[14] ON/OFF switch
[15] Secondary fan
[16] AC plug
[17] Main connection
[18] Ignition electrodes
[19] Ground post
[20] Antifreeze kit connection
[21] Fuse
[22] Fuse
830 ES
15
13
M
M
22
12
M
E
PS
T=104°C
T=220°F
16
16
...
...
1
1
20
20
...
...
14
JP2
JP8
JP7
JP6
JP5
6720608158-92.1AL
Electrical diagram | 45
11
10
9
T=110°C
T=230°F
8
7
FS
6
Casc.
5
input
Casc.
output
Back flow
1
1
6 720 644 936 (2013/01)
4
3
2
1
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