Start-Up/Shutdown; Starting The Heating System - Viessmann VITODENS Series Operating Instructions Manual

Start-up/shutdown

Starting the heating system

A B C
2
1 3
0 4
bar
E
A Fault indicator (red)
B ON indicator (green)
C Reset button
1. Check the heating system pressure
at the pressure gauge. The system
pressure is too low if the indicator
points to the area below 1.0 bar. In
this case, top up with water or notify
your local heating contractor.
2. For open flue operation:
Check that the vents of the installa-
tion room are open and unrestricted.
Note
With open flue operation, the com-
bustion air is drawn from the installa-
tion room.
10
°C
4 8
s A
D ON/OFF switch
E Pressure gauge
3. Open the gas shut-off valve.
4. Switch ON the power supply, e.g. at
5. Turn the ON/OFF switch " " ON.
D
Note
Ask your heating contractor to
explain the positioning and handling
of these components.
a separate MCB/fuse or a mains iso-
lator.
After a short while, the standard dis-
play appears and the green ON indi-
cator illuminates. Your heating sys-
tem and room temperature controller
are now ready for operation.