Viessmann Vitoflame 100 Service Instructions For Contractors page 37

Connection and wiring diagram
Note
This wiring diagram only applies in
conjunction with Viessmann products.
fA Burner plug at the control unit
F1 External fuse
F6 High limit safety cut out
F7 Control thermostat
S1 ON/OFF switch in the control
unit
S2 Reset button
K1 K4 Relay contacts in the burner
control unit
K1a Relay contact in the control
unit
1 qW Plug in terminals at the burner
control unit
Connection and wiring diagram
(cont.)
A Burner control unit (for program
sequence, see page 25)
B External fault indicator
C Gas pressure switch
D Electronic ignition
E Burner motor
F Fuel valve 1
G Fuel valve 2
H Air pressure switch
K Flame monitoring
Colour coding to DIN IEC 60757
BK black
BN brown
BU blue
37