Connection and wiring diagram
Burner control unit connection diagrams
Fig. 34
Fan motor with PWM switching and feedback
K
Display and programming unit
L
Gas pressure switch 2
M
Air pressure switch 1
N
Gas pressure switch 1
O
44
Air pressure switch 2
P
Flue gas temperature sensor 2
Q
Flue gas temperature sensor 1
R
To the mains filter unit
S