Immergas NIKE Star Instruction Booklet And Warning page 105

Nike Star boiler components.
Key:
1 - System filler cock
2 - Domestic circuit adjustment NTC sensor
3 - Gas valve
4 - Domestic circuit flow switch
5 - Combustion chamber
6 Fume extraction hood
7 - Flue safety thermostat
8 - NTC limit and regulation sensor
9 - Overtemperature safety thermostat
10 - Expansion tank
11 - Air vent valve
12 - Circulating pump
13 Water pressure switch
14 - Manifold
15 - 3 bar safety valve
16 - System drain cock
17 - Rapid type exchanger
18 - Ignition/detection plugs
19 - Burner
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