Setting the time and date (if required)
–
only for weather-
compensated control units
Note
During commissioning, or after prolonged time out of use, it may be necessary
to set the time and date, if the time flashes in the display.
1.
Set the correct time with
a
/
b
.
2.
Confirm with
d
.
3.
Set the current date with
a
/
b
.
4.
Confirm with
d
.
Checking the gas type
The boiler is equipped with an electronic combustion control unit, which adjusts
the burner for optimum combustion in accordance with the prevailing gas qual-
ity.
&
For natural gas, there is consequently no adjustment required across the
entire Wobbe range.
The boiler can be operated in the Wobbe index range 10.0 to 16.1 kWh/m
3
(36.0 to 58.0 MJ/m
3
).
&
The burner must be adjusted for operation with LPG (see "Changing the gas
type" on page 11).
1.
Determine the gas type and Wobbe
index (Wo) by asking your local
mains gas or LPG supplier.
2.
Convert the burner for operation
with LPG (see page 10).
3.
Record the gas type in the service
report on page 116.
Further details regarding the individual steps
(cont.)
10
Initial start-up, inspection, maintenance
5692
569
GB
Summary of Contents for Vitodens 300
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