Designs
Connection and wiring diagrams
A12 Vitotronic 200 (boiler control
unit)
A13 Impressed current anode con-
nection
A14 Wiring chamber PCB
S1
Collector temperature sensor
(PCB A11)
S2
Cylinder temperature sensor S2
(PCB A11)
134
external . . .
(cont.)
S3
Cylinder temperature sensor S3
(PCB A11)
!
Outside temperature sensor
?
Flow temperature sensor
&
Collector temperature sensor
sF
Solar circuit pump 230 V
fÖ
Mains input 230V/50Hz
lH
Power supply of accessories
aVG KM BUS
aBH Power supply of accessories