Components From The Parts List - Viessmann VITOTRONIC 100 Installation And Service Instructions Manual

Vitoair draught stabiliser
Emergency mode
Press the rotary selector on the motor
and turn clockwise to the limit beyond
position .

Components from the parts list

Main PCB
The main PCB comprises:
Relay for selecting pumps and burn-
er
Sockets for sensor connection
Sockets for the power supply con-
nection, heating circuit pump and
burner
PCB
All data is processed and outputs
(relay) are selected.
Power supply unit PCB
The power supply unit PCB comprises
the low voltage supply for all electro-
nic equipment.
PCB Optolink/emissions test switch
The PCB comprises:
Burner standby display
Fault display
(cont.)
Socket for connecting the
Vitotrol 100, type UTD room thermo-
stat
Fuse F2, 4 A (slow)
Components
47