Gas Type Conversion (Only For Operation With Lpg); Checking The Static Pressure And Supply Pressure - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Gas type conversion (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

Danger
CO formation as a result of incorrect burner
adjustment can have serious health implications.
Always carry out a CO test before and after
work on gas appliances.
Operation with LPG
Purge the LPG tank twice on commissioning or
replacement. Vent the tank and gas connection line
thoroughly after purging.
A
Fig. 25
01. Turn off the ON/OFF switch .
8
Commissioning, inspection, maintenance
2. Affix label "G31" (supplied with the technical docu-
mentation) adjacent to the type plate on the cover
panel.
02. Remove the front panel (see page 11).
03. Close the gas shut-off valve.
04. Undo screw inside test connector "IN" on the
A
gas train but do not remove it, and connect the
pressure gauge.
05. Open the gas shut-off valve.
06. Check the static pressure and record the actual
value in the report on page 156.
Set value: Max. 57.5 mbar (5.75 kPa).
07. Turn on the ON/OFF switch
Note
During commissioning, the boiler can enter a fault
state because of airlocks in the gas line. Fault EE
is displayed. After approx. 5 s, press reset button
R to reset the burner.
08. Check the supply (flow) pressure. For set values,
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.
09. Record the actual value in the report on
page 156.
Implement measures as indicated in the table
below.
10. Shut down the boiler, close the gas shut-off valve
and remove the pressure gauge. Close test con-
nector A with the screw.
11. Open the gas shut-off valve and start the appli-
ance.
Danger
Gas escaping from the test connector leads
to a risk of explosion.
Check gas tightness at test connector
12. Fit front panel (see page 30).
and start the boiler.
8
.
A
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