31
146
143
12
3
A
41
L
B4
S3
T2
T1
N
41
Fault H1
BZ
N
PE
L1
STB
TR
L1
N T1 T2 S3 B4
F
12
3
90
T6 T7 T8
T6T7
T8
90
B
C
D
E
BU
BK
BN
BU
BK
BN
Fig. 25
A
Plug to the control unit
B
Boiler enable
Butterfly valve OPEN or CLOSE
C
Burner with base load ON
D
Reduce burner output (modulation controller).
E
Increase burner output (modulation controller).
F
Plug to the burner
Colour coding to IEC 60757
BK Black
BN Brown
BU Blue
Connection to Vitocrossal with on-site modulation controller
■
Connect plug
fA
from the Vitotronic 100 to the
burner.
■
Plug
lÖ
of the Vitotronic 100 remains unallocated.
■
Via external demand
aVD
, the on-site modulation
controller starts the burner with base load.
Electrical connections
Connecting the modulating burner, multi boiler…
(cont.)
5863679
Installation
Summary of Contents for Vitotronic 11 CC1E
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