Burner Control Unit Connection Diagram - Viessmann VITOCROSSAL 200 Instructions Manual

Burner control unit connection diagram

PE
Y1
Y1
PE
N
Y2
PE
N
Fan
M1
M
PE
N
Ignition
T1
PE
N
NE
B2
PE
COM
NE
B3
F4
PE
P
COM
NE
PE
COM
F6
P NE
COM
A1 Burner control unit MPA 51
A2 Display unit with reset function
B1 Flame monitoring via an ionisation
current
B2 Safety chain jumper
F1 Line fuse
F2 High limit safety cut-out
B4
S3
T2
T1
N
PE
L1
A1
T8
T7
T6
B5
GND
Speed
PWM
+UH
ION
A2
Burner control unit connection diagram
H1
B4
H2
S3
K1
T2
T1
S2
N
L
F2
(+)
(-)
S3
H3
M1
B1
S1
F1
6.3 A (slow)
S4
F4 Minimum pressure, gas pressure
limiter
F6 Air pressure switch
H1 Hours run counter, total
H2 Fault message
H3 Hours run meter
Modulation; lower rated output;
upper rated output
L1 N
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