Operating instructions

Checking the gas type
Note
In the delivered condition, the Vitodens 333 is set up for natural gas E.
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
3
).
1. Determine the gas type and Wobbe
index (Wo) by asking your local
mains gas or LPG supplier.
2. Compa re the gas categ ory (type)
and group with the details on the
burner labe l.
3. The bur ner must be conv erted
according to t he details provi ded
by the mains gas or the LPG sup-
plier to match the fuel provided, if
these details do not match.
Conversion kit installation
instructions.
Wobbe index range after conver-
sion:
&
Natural gas LL
10.0 to 13.1 kWh/m
3
(36.0 to
47.2 MJ/m
3
)
&
LPGP(only26kW)
21.4 to 22.5 kWh/m
3
(76.9 to
81.0 MJ/m
3
)
4. When converting to LPG (only
26 kW)
Adjust coding address "1E:1" (see
page 39).
5. Record the gas type in the service
report on page 117.
Gas type conversion
Gas restrictor installation
instructions
Further details regarding the individual steps (cont.)
11
Initial start-up, inspection, maintenance
5692 619 GB