Viessmann Vitocrossal 200 Service Instructions Manual page 9

Further details regarding the individual steps
Checking the gas type
1. Determine the gas type and Wobbe
index (Wo) from your gas supplier.
With the natural gas E setting,
the boiler can be operated in the
Wobbe index range 12.0 to 16.1
3
kWh/m (43.2 to 58.0 MJ/m
With the natural gas LL setting,
the boiler can be operated in the
Wobbe index range 10.0 to 13.1
3
kWh/m (36.0 to 47.2 MJ/m
Conversion to natural gas LL
Conversion for 87 kW
1. Close the gas shut off valve.
Initial start-up, inspection, maintenance
9. Check the function of the neutra-
lising system.
Neutralising system oper-
ating instructions
10. Check all gaskets/seals and plugs
and retighten, if necessary.
Note
We recommend you check all
heating water connections after
approx. 500 hours for leaks (see
page 22).
11. Check the boiler door and clean
out cover a few days after com-
missioning and retighten all
screws.
2. The burner is set up in the factory
for natural gas E. If required, con-
vert the burner in accordance with
details provided by your gas sup-
plier to a different gas type (see
3
). page 9).
3. Record the gas type in the service
report (on page 60).
3
).
2. Switch OFF the system ON/OFF
switch at the control unit.
(cont.)
9