
13
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
Gas type conversion (only for operation with LPG)
1
2
A
1.
Set adjusting screw
A
at the gas
train to "2".
2.
Switch ON/OFF switch "
8
" ON.
3.
Select the gas type in coding address
"82"
■ Call up code 2
■ In coding address "11", select
value "9"
■ In coding address "82", select
value "1" (operation with LPG)
■ In code "11" select value
≠
"9"
■ Terminate code 2.
4.
Open the gas shut-off valve.
5.
Affix label "G 31" (included with the
technical documentation) in a clearly
visible position, near the gas train on
the cap panel.
Function sequence and possible faults
Display screen
Measures
Control unit
issues heat
demand
No
Increase set value
and ensure heat is
drawn off
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 760 GB
Summary of Contents for VITOCONTROL-S, WB2B
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