Viessmann Vitodens 300 Service Instructions Manual page 26

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Required coding
1 heating circuit with mixer
&
with DHW cylinder
& without DHW cylinder
Function relay of the internal extension: Cylinder loading
pump
System design 3
With/without DHW heating with low loss header, 1 heating circuit without
mixer and 1 heating circuit with mixer
!
Outside temperature sensor
?
Flow temperature sensor
%
Cylinder temperature sensor
sÖ
Heating circuit pump or boiler
circuit pump
sA
Cylinder loading pump (connec-
tion via external extension H1)
lH
Power supply
aVG KM BUS
26
(cont.)
A
External extension H1
B
Low loss header
C
Extension kit for 1 heating circuit
with mixer
D
Maximum temperature controller
(underfloor heating)
Address
00:4
00:3
53:3