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2.03. Flow Diagram
5
42
87
30
28
19
22
21
43
176
40
5 Room-sealed compartment
7 Gas inlet
8 Domestic hot water outlet
9 Cold water inlet
16 Fan
19 Combustion chamber
20 Burner assembly
21 Main injector
22 Burner
25 Pilot
26 Combustion chamber insulation
27 Copper heat exchanger
28 Flue gases collector
Supplied By www.heating spares.co Tel. 0161 620 6677
8
7
Fig. 2
29 Internal flue exit
30 Surplus air collector
31 Air pressure control damper
40 Expansion vessel 3 bar
42 Temperature sensor
43 Air pressure switch
44 Combination gas valve
81 Spark electrode
82 Sensor electrode
87 Venturi pressure test point
136 Flowmeter
176 Overheat cut-off thermostat 90°C
S.p.A.
29
16
31
27
26
82
81
20
136
44
9
7
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