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INST
ALLA
TION
TECHNICAL INFORMATION
4.2 Main diagram
5
C.h. flow valve
6
Gas inlet valve
7
C.h. return valve
8
Condensate drain pipe
9
Main circuit drain valve
15
Flue temperature probe NTC
16
C.h. temperature probe NTC
17
Condensing heat exchanger
18
Safety thermostat
19
Condensing heat exchanger air purger
valve
20
Safety thermal fuse
21
Flame-detecting electrode
22
Air manifold
23
C.h. pressure relief valve
24
Automatic airpurger valve
25
Pump
26
Gas valve
37
38
39
17
21
33
34
31
26
35
25
29
23
6
7
9
8
5
30
27
24
16
40
15
18
20
36
19