Initial Start-Up, Inspection, Maintenance; Further Details Regarding The Individual Steps; Preparing For Commissioning; Checking The Gas Type - Viessmann VITOGAS 100 Service Instructions Manual

Initial start-up, inspection, maintenance

Further details regarding the individual steps

Preparing for commissioning

1. Check that the boiler room ventila-
tion aperture is open.

Checking the gas type

Note
In the delivered condition, the boiler is set up for natural gas E and can be oper-
ated in the Wobbe index range 12.0 to 16.1 kWh/m
1. Check the gas category and
Wobbe index (Wo) with your mains
gas or LPG supplier and compare
them with the details on the burner
label.
6
2. Check the inlet pressure of the dia-
phragm expansion vessel.
If the inlet pressure of the dia-
phragm expansion vessel is lower
than the static system pressure,
top up with sufficient nitrogen to
raise the inlet pressure above (0.1
to 0.2 bar) the static system pres-
sure.
3. Open any installed check valves.
4. Fill the heating system with water
and vent it, until the pressure indi-
cated at pressure gauge A is
higher (0.1 to 0.2 bar) than the inlet
pressure of the diaphragm expan-
sion vessel.
Minimum system pressure 0.8 bar,
permiss. operating pressure 3 bar.
5. Return the check valves to their
operating position.
3
(43.2 to 58.0 MJ/m
2. Convert the burner in accordance
with to the details provided by the
mains gas or LPG supplier to
match the fuel provided, if these
details diverge.
Conversion kit installation
instructions
3
).