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4.2
Main diagram
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51
19
40
21
37
43
42
32
15
13
Fig. 4.2
11 C.h. return valve
12 D.c.w. inlet valve
13 Gas inlet valve
14 D.h.w. outlet pipe
15 Condensate drain pipe
16 C.h. flow valve
17 Condensing heat exchanger
TECHNICAL INFORMATION
48
38
35
29
44
24
26
49
39
20
17
25
27
18
31
45
11
16
18 C.h. temperature probe NTC
19 Condensing heat exchanger
20 Safety thermostat
21 Flame-detecting electrode
22 Transformer
23 Air manifold
24 C.h. pressure relief valve
33
46
47
41
34
30
12
14
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