Viessmann Vitodens 200-W B2HA 100 Technical Data Manual page 46

Wiring Diagram
Overview of Electrical Connections, Models B2HA 112 and 150
If any of the original wires as
supplied with the appliance must
be replaced. It must be replaced
with the exact equivalent.
* Only one function/accessory may
be assigned to each connection.
WARNING
DISCONNECT POWER BEFORE
SERVICING BOILER.
46
Vitodens 200-W B2HA 100 to 150 Technical Data
L N
CAUTION
Label all wires prior to disconnection
when servicing controls. Wiring errors
can cause improper and dangerous
operation. Verify proper operation
after servicing.
53
120VAC WALL
RECEPTICALE
MAIN
DISCONNECT
SWITCH
MAIN POWER SUPPLY
120VAC, 60HZ, 12A
LOW WATER
OUTPUT,
SAFETY
DEVICE -
TYPICAL