1 Air duct
2 Fan
3 Main heat exchanger
4 Temperature sensor (NTC I)
5 Flame sensing electrodes
6 Modulating burner
7 Fully modulating automatic gas
value
8 Maximum hot water temperature
control
9 Maximum radiator temperature
control
10 Diverter valve
11 DHW heat exchanger
12 Automatic bypass valve
13 CH flow service valve
14 Hot water outlet
15 Gas service valve
16 Cold water service valve
17 CH return service valve
18 Pressure relief valve
19 Aqua sensor (DHW flow switch)
20 Temperature sensor (NTC III)
21 Main on/off control
22 Pressure gauge
23 Display
24 Expansion vessel
25 Expansion vessel charging valve
26 Circulating pump
27 Automatic air vent
28 Ignition electrode
29 Temperature sensor (NTC II)
30 Air pressure switch
31 Flue gas duct
Fig. B.3: Functional Diagram TURBOmax Plus
Euro B/S 196/0
TURBOmax Plus