Bosch GWH 2700 ES LP - Manual (Page 45)

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Electrical diagram
45
9 Electrical diagram
Fig. 59 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
20 ... 1 16 ... 1
JP5
JP6
JP7
JP8
JP2
M PS M M E
FS
T=104°C
T=220°F
T=110°C
T=230°F
Casc.
input
Casc.
output
2
1
4
5
6
7
9
10
11
12 13 15
16
20
19
18
21
22
17
14
8
Back flow 3
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