Converting The Gas Type (Only For Operation With Lpg); Checking The Static Pressure And Supply Pressure - Viessmann VITODENS 222-F Installation And Service Instructions Manual

Converting the gas type (only for operation with LPG)

1. To change the gas type on the control unit, see
"Commissioning the system with the commission-
ing assistant"
Note
Mechanical conversion on the gas train is not pos-
sible.

Checking the static pressure and supply pressure

C
A
Fig. 29
Cover panel
A
Test connector
B
Type plate
C
Danger
CO formation as a result of incorrect burner
adjustment can have serious health implications.
Carry out a CO test before and after work on
gas appliances.
Operation with LPG
Purge the LPG tank twice on commissioning/replace-
ment. Vent the tank and gas connection line thoroughly
after purging.
01. Close the gas shut-off valve.
02. Undo clips and remove cover panel
03. Undo screw in test connector
but do not remove it. Connect the pressure gauge.
04. Open the gas shut-off valve.
2. Affix label "G31" (supplied with the technical docu-
B
05. Test the static pressure and record it in the report.
06. Start the boiler.
07. Check the supply (flow) pressure. For set values,
A .
on the gas train,
B
Commissioning, inspection, maintenance
mentation) adjacent to the type plate on the out-
side of the appliance.
Set value: Max. 57.5 mbar (5.75 kPa).
Note
During commissioning, the appliance can enter a
fault state if there are airlocks in the gas line.
Reset the appliance after approx. 5 s (see operat-
ing instructions).
see the following table.
Note
Use a suitable measuring device with a resolution
of at least 0.1 mbar (0.01 kPa) to check the supply
pressure.
35