Gas Inlet Pressure At Nominal Load - Weishaupt thermo condens WTC 15-A Installation And Operating Instructions Manual

5
Soundness test of flue gas system
For room air independent operation, a soundness test of
the flue gas system via an O
internal space of the condensing boiler is required.
Fit hose 4 through the test point in the supply air
aperture 2 into the condensing boiler.
Seal test point in the supply air aperture 2.
Connect test sensor 5 to the hose 4.
Close cover of condensing boiler.
Start condensing boiler in chimney sweep mode
and carry out O measurement at 100% load.
2
The test should last at least 5 minutes, the O
must not fall more than 0.2% below the measured
value of the ambient air.

5.5.1 Gas inlet pressure at nominal load

Pressure measuring device at test nipple Pe
The correct gas inlet pressure is a prerequisite for the
following measurements.
Open gas valve.
Remove boiler cover.
Open closing screw 1 on test point Pe by approx.
1 rotation.
Connect hose from pressure measuring device.
Close closing screw once measurement has been
taken.
Note: The gas inlet pressure across the whole
ratings range must lie within the values
stipulated.
• Natural Gas 17...30 mbar
• LPG 25...57.5 mbar
36
measurement within the
2
content
2
Soundness test of flue gas system
1
4
1 Boiler connection piece
2 Test point in supply air aperture
3 Flue gas test point
4 Hose
5 Test sensor
Gas inlet pressure
1
2
3
5