Installation Manual

38
Installing the boiler and making all connections
Remove front panel and mount boiler
Note
The front panel must be removed before mounting the boiler.
Note
For operation without DHW cylinder or for Y/S plan systems, cap off connections B and D and
do not fit a Viessmann cylinder sensor.
Heating flow
A
DHW (combination boiler)
Cylinder flow (system boiler)
B
Gas connection
C
Cold water (combination boiler)
Cylinder return (system boiler)
D
Heating return
E
Fill & drain valve
F
5350 485 GB 08/2007
Vitoden 200-W installation 4/9/07 7:27 pm Page 38