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Electrical diagram
9 Electrical diagram
Fig. 58 Electrical scheme
1 Intlet water temperature sensor
2 Outlet water temperature sensor
3 Exhaust 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
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