Gas Type Conversion (Only For Operation With Lpg); Function Sequence And Possible Faults - Viessmann VITODENS 222-F Installation And Service Instructions Manual

Further details regarding the individual steps

Gas type conversion (only for operation with LPG)

Function sequence and possible faults

Control unit
issues heat
demand
Yes
Fan starts
Commissioning, inspection, maintenance
1. Set adjusting screw A at the gas
train to "2".
2. Switch ON/OFF switch
3. Select the gas type in coding address
"82":
■ Call up code 2.
■ Generally, call up group 1.
■ In coding address "11", select
■ In coding address "82", select
■ In code "11" select value ≠ "9".
■ End service functions.
4. Open the gas shut-off valve.
5. Affix label "G31" (included with the
technical documentation) adjacent to
the type plate on the cover panel.
Display screen
No
No after approx. 51 s
fault F9
(cont.)
value "9".
value "1" (operation with LPG).
Measures
Increase set value
and ensure heat is
drawn off
Check the fan, fan
connecting cables,
power at the fan
and fan control
ON.
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