Boiler Schematic - Saunier Duval Semia Condens F24 E Instructions For Use Installation And Servicing

17 Boiler schematic

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1 Overheat thermostat (manual reset control)
2 Air pressure switch
3 Automatic air vent
4 Fan
5 Flue hood
6 Expansion vessel
7 Primary heat exchanger
8 Flame sense electrode
9 Ignition electrode
10 Burner
11 Water valve
12 Gas valve
13 Syphonic condensate trap
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14 Domestic plate to plate heat exchanger
15 Hydraulic 3-way valve
16 Low pressure sensor
18 Condense outlet pipe
19 Drain valve
20 Pump
21 Thermistor
22 Recuperator
23 Flue overheat thermostat (probe)
24 Overheat thermostat
25 Pressure relief valve (3 bar)
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