30
90
143
12
3
B
C
D
BK
BN
BU
12
3
A
E
41
L
B4 S3T2 T1 N
41
L
B4
S3
T2
T1
N
T7T8
T6
Fig. 24
A
Plug to the control unit
B
Burner with base load ON
C
Reduce burner output (modulation controller).
D
Increase burner output (modulation controller).
E
Plug to the burner
Colour coding to IEC 60757
BK Black
BN Brown
BU Blue
Connecting the modulating burner, multi boiler system
Connection to low temperature boiler with on-site modulation controller
■
Connect plug
fA
from the Vitotronic 100 to the
burner.
■
Plug
lÖ
from the Vitotronic 100 via the modulation
controller (on site) to
lÖ
on the burner
■
Via external demand
aVD
, the on-site modulation
controller starts the burner with base load.
Electrical connections
Connecting the modulating burner, single boiler…
(cont.)
5863679
Installation
Summary of Contents for Vitotronic 11 CC1E
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