Main Diagram - Biasi BASICA COND 28S User Manual And Installation Instructions

4.2

Main diagram

18
20
Fig. 4.2
3 Condensate drain pipe
4 C.H. flow valve
5 Gas inlet valve
6 C.H. pressure relief valve pipe
7 Main circuit drain valve
8 C.H. return valve
17 Flue temperature probe NTC and Safety
thermal fuse
18 Condensing heat exchanger
TECHNICAL INFORMATION
37
38
33
30
27
26
34
25
29
3 5
36
35
17
19
28
22
23
21
7
8
19 NTC heating delivery probe - NTC maxi-
mum temperature
20 Flame-detecting electrode/Ignition elec-
trode
21 C.H. pressure relief valve
22 Automatic air purger valve
23 Pump
24 Pump vent plug
25 Gas valve inlet test point
39
4
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