- 29 -
INST
ALLA
TION
TECHNICAL INFORMATION
4.2 Main diagram
Fig. 4.2
3
C.h. flow valve
4
D.h.w. outlet valve
5
Gas inlet valve
6
D.c.w. inlet valve
7
C.h. return valve
8
Condensate drain pipe
9
Main circuit drain valve
21
Condensing heat exchanger air purger
valve
22
Flue temperature probe NTC
23
C.h. temperature probe NTC (delivery)
24
C.h. temperature probe NTC (return)
25
Condensing heat exchanger
26
Safety thermostat
27
Flame-detecting electrode
28
Safety thermal fuse
29
Air manifold
30
C.h. pressure relief valve
31
Automatic airpurger valve
32
Pump
52
53
54
25
27
46
47
44
34
49
32
39
42
30
5
7
9
8
3
6
4
40
35
31
23
24
37
48
43
51
50
41
55
22
26
28
56
21
36
Summary of Contents for Activ A 30C
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