Mains filter unit connection diagram
A
A
Mains filter
B
Contactor
C
Flue gas temperature sensor
D
Boiler water temperature sen-
sor
E
Air pressure switch 2
B
a-Ö
fÖ
fÖ/aBH Control unit
gD
Connection diagrams
C
E
To the fan
Power supply 120 V~/60 Hz
Flue gas damper to a-Ö burner
control unit
D
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