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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
11
Backflow temperature sensor
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
42
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