Checking The Gas Type - Viessmann VITOCROSSAL 200 Instructions Manual

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 kWh/m 3 (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 kWh/m 3 (36.0 to 47.2 MJ/m
Conversion to natural gas LL
Conversion for 87 kW
01. Close the gas shut-off valve.
02. Switch OFF the control unit ON/OFF
switch.
03. Switch OFF the main isolator (out-
side the installation room) or the
power supply and prevent unauthor-
ised reconnection.
Commissioning, inspection, maintenance
9. Check all gaskets/seals and plugs,
and retighten if necessary.
Note
We recommend you check all heating
water connections for leaks after
approx. 500 hours (see page 22).
10. Check the boiler door and clean-out
cover a few days after commission-
ing and retighten all screws.
2. In the delivered condition, the burner
is set up for natural gas E. If required,
convert the burner in accordance with
details provided by your gas supply
utility to a different gas type (see
page 9).
3 ).
3. Record the gas type in the service
report (on page 61).
3 ).
04. Undo fitting A.
(cont.)
9