Viessmann 7838380 Notice De Montage page 14

GB
Opening the Vitodens
Installation and service instruc-
tions
Removing the programming unit and pivoting the control unit
down
2.
!
Please note
Electronic assemblies can be
damaged by electrostatic dis-
charge.
14
5.
1.
Switch off the power supply.
3.
Prior to commencing any work,
touch earthed objects such as
heating or water pipes to dis-
charge static loads.
4.