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INST
ALLA
TION
TECHNICAL INFORMATION
24
Pump
25
Pump vent plug
26
Gas valve
27
Primary circuit flow switch
28
Condensate trap
29
Fan
30
Spark generator
31
Ignition electrode
32
Burner
33
Flue temperature probe NTC
34
Safety thermal fuse
35
Gas valve inlet pressure test point
36
Gas valve outlet pressure test point
37
C.h. expansion tank
38
By-pass valve
39
Flue outlet pipe
40
Air intake pipe
41
Flue exhaust sampling point
42
Air sampling point