Electrical Diagram - Bosch 940 ESO Instruction Manual

Electrical diagram

13 Electrical diagram
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Fig. 62 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
44
15 13
M M
22
12
M
PS
E
T=104°C
T=220°F
16 16 ... ... 1 1 20 20 ... ...
14 JP2
JP8
JP7
JP6
JP5
6720608158-92.1AL
11
10
9
T=110°C
T=230°F
8
7
FS
6
Casc.
5
input
Casc.
output
Back flow
1 1
6 720 644 956
4
3
2
1