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Connection and Wiring Diagrams
Boiler Connections
Connection overview for CA3 3.5 to 6.0 models
Legend
A Supply temperature sensors heating circuits M2/M3
B External LON participants (i.e. Vitotronic 200-H)
C Low voltage/sensor connections
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Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
D Boiler power supply connection
E Pumps/mixing valve connections
F Internal disconnect switch (with lockout provision)
G Vitocom 100 LAN1
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