12
Selecting the language (if required)
–
only for weather-compen-
sated control units
Note
When the unit is first taken into operation
the display is in German (default lan-
guage setting):
Select heating circuit (see step 1.)
Heizkreis wählen
1
z
Outside temperature (see step 3.)
Außentemperatur
i
°C
13
Press the following keys:
1.
c
"
Heizkreis wählen
" (select
heating circuit) is displayed.
2.
d
to confirm
;
wait approx. 4 s.
3.
c
press this button again,
"
Außentemperatur
" (outside
temperature) is displayed.
4.
b
for the required language.
5.
d
to confirm.
Checking the gas type
The boiler is equipped with an electronic combustion control unit that adjusts the
burner for optimum combustion in accordance with the prevailing gas quality.
■ The boiler can be operated with natural gas in the Wobbe index range 10.0 to
16.1 kWh/m
3
(36.0 to 58.0 MJ/m
3
) without conversion.
■ Convert the burner for operation with LPG (see "Gas type conversion" on
page 13).
1.
Determine the gas type and Wobbe
index by asking your local gas supply
utility or LPG supplier.
2.
Convert the burner for operation with
LPG (see page 13).
3.
Record the gas type in the service
report on page 115.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 760 GB
Summary of Contents for VITOCONTROL-S, WB2B
Page 5: ...5 Keyword index 119 Index Index cont 5692 760 GB ...
Page 121: ...121 5692 760 GB ...
Page 122: ...122 5692 760 GB ...
Page 123: ...123 5692 760 GB ...