Electrical Connections - Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual

Installing the boiler

Electrical connections

!
Please note
Electronic assemblies can be
damaged by electrostatic dis-
charge.
2
145
2 1 5 4
145
A Radio clock receiver
20
A
1
3 2 1 100 35
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge static
loads.
96
230V~ 230V~
L
N L 1
B
21 20 96
B Jumper
40
N
40