Boiler Schematic - Potterton WH 46 Installation, Operation And Maintenance Manual

Figure 20
Legend:
1 Boiler drain point
2 Manometer (water pressure gauge)
3 Siphon (condensate)
4 NTC delivery heating probe
5 105°C overheat thermostat
6 Gas valve
7 Heat exchanger
8 Flame detector electrode (ionisation probe)
9 Main burner
10 Ignition electrode
11 Air/gas mixture header
12 Mixer with venturi
13 Injector
14 Fan
15 Flue thermostat
16 Flue spigot
17 Automatic air vent
18 Flue joint
19 Hydraulic pressure sensor
20 Pressure gas switch
21 NTC return heating probe
INSTRUCTIONS PERTAINING TO THE INSTALLER

22. BOILER SCHEMATIC

33
926.772.1 - GB/IE