Viessmann KOB PYROTEC Technical Manual page 12

PYROTEC
(cont.)
E Light barrier, incandescence
F Ignition unit
G Cleaning cover, combustion retort
H Cleaning cover, external grate
K Light barrier ash removal
L Boiler door
M Cleaning, pneumatic
N Combustion chamber door
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O Limit switch, combustion chamber door
P Primary air fan 2
Q Drive, infeed grate
R Contact sensor, supply screw conveyor
S Limit switch, maintenance cover
T Light barrier, supply screw conveyor
U Extinguishing water connection
V Boiler drain and fill valve
PYROTEC