Operating instructions

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 qual-
ity.
&
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 12).
1. Determine the gas type and Wobbe
index by asking your local gas sup-
ply utility or LPG supplier.
2. Convert the burner for operation
with LPG (see page 12).
3. Record the gas type in the service
report on page 117.
Wobbe index ranges
Gas type Wobbe index range
kWh/m
3
MJ/m
3
Delivered condition
Natural gas E
or
12.0 to 16.1 43.2 to 58.0
Natural gas LL 10.0 to 13.1 36.0 to 47.2
After conversion
LPG P 20.3 to 21.3 72.9 to 76.8
Further details regarding the individual steps (cont.)
11
Commissioning, inspection, maintenance
5692 672 GB