1.Prosestat
2.Fan
3.Heating circuit exchanger
4.Maximum heat sensor
5.Expansion tank
6.Burner
7.Three Way Valve Engine
8.Central heating circuit heat sensor
9.Hot water sensor
10.Pressure gauge
11.Gas valve
12.DHW exchanger
13.Filling valve
14.Circulation pump
1
4
5
6
2
3
7
10
8
9
11
12
13
14
HYDROLIC SCHEMA
18