Viessmann Vitocrossal 200 Service Instructions Manual page 53

Component overview
E Gas combination valve
F Gas supply pipe
G Gas shut off valve
H Flame body
I Ignition electrodes
K Ionisation electrode
L Thermal insulation block
Not shown: choke valve for 142 and
186 kW and rotary valve damper for
246 and 311 kW.
(cont.)
M Burner control unit
N Ignition unit
P Suppressor box
Q Inlet adaptor for balanced flue
operation (for 115, 142 and 186
kW)
R Venturi mixing pipe
Component overview
53