Checking The Static And Supply Pressure - Viessmann VITODENS 200-W Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
For further details regarding faults, see
page 90.

Checking the static and supply pressure

Danger
CO build-up 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
Flush the LPG tank twice during commissioning or replacement. Vent the tank and
gas supply line thoroughly after flushing.
16
1. Close the gas shut-off valve.
2. Release screw A inside test nipple
"PE" on one of the two gas trains, but
do not remove it; then connect the
A
pressure gauge.
3. Open the gas shut-off valve.
4. Check the static pressure and record
it in the report on page 140.
Set value: max. 57.5 mbar.
5. Start the boiler.
Note
During commissioning, the boiler can
enter a fault state because of airlocks
in the gas line. After approx. 5 s,
press R to reset the burner.
(cont.)