Potterton Sirius two WH Installation, Operation And Maintenance Instructions page 9

BOILER SCHEMATIC LAYOUT
6
5
4
3
2
1
20
A
1
2
Air/gas blend manifold
3
Heat exchanger
4
Flue sensor
5
6 Concentric flue connector 18
7 Automatic air vent
8 NTC heating sensor
9 Safety thermostat
10 Ignition electrode
11
Flame detection probe
12
Spark generator
19
B C
13
Fan
14
15
16
Flue hood 17
19
A
B
C
D
18
D
Venturi
Optional pump position
Hydraulic Safety valve
Boiler drain tap
Pressure gauge
Hydraulic Pressure Sensor
Gas valve
Siphon with condensate drain
Gas inlet connection
Heating flow connection
Heating return connection
9
7
8
9
10
11
12
13
14
15
16
17
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