Biasi M300V.2025 SM User Manual And Installation Instructions page 26

TECHNICAL INFORMATION
23 C.H. pressure relief valve
24 Automatic air purger valve
25 Pump
26 Pump vent plug
27 Gas valve inlet test point
28 Gas valve
29 Gas valve outlet test point
30 D.H.W. temperature probe NTC
31 Primary circuit pressure switch
32 Condensate trap
33 D.H.W. heat exchanger
34 Three-way diverter valve
35 Three-way electric actuator motor
36 Fan
37 Air/gas mixer
38 Burner
39 Domestic hot water flow switch
40 C.H. expansion tank
41 Domestic water circuit filter
42 Domestic hot water flow limiter (optional)
43 Flue outlet pipe
44 Air intake pipe
45 Flue exhaust sampling point
46 Air sampling point
47 By-pass valve
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