Viessmann VITODENS 333 Service Instructions Manual page 31

Further details regarding the individual steps
System design 5
With one heating circuit with mixer M2 (with extension kit), one heating cir-
cuit with mixer (with Vitotronic 050) and low loss header
!
Outside temperature sensor
?
Flow temperature sensor
sÖ
Heating circuit pump
lH
Mains supply (extension kit)
aVG KM BUS
A
Low loss header
Required coding
One heating circuit with mixer and DHW cylinder
Operation with natural gas (as delivered condition)
or
Operation with LPG
Initial start-up, inspection, maintenance
(cont.)
B
Extension kit for one heating cir-
cuit with mixer
C
Vitotronic 050
D
Maximum temperature controller
(underfloor heating)
Address
00:4
1E:0
1E:1
31