Checking The Nozzle Pressure - Viessmann Vitoflame 100 Service Instructions Manual

Pressure−jet gas burner. for vitoplex 100, 200 and 300. rated output 80 to 225 kw. for vitorond 200. rated output 125 to 195 kw

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Table of Contents

Initial start−up, inspection and maintenance

Further details regarding the individual steps

Checking the nozzle pressure

(cont.)

1. Release the screw in test port A,

but do not remove.

2. Connect the U−shaped pressure

gauge to the test port A.

3. Open the gas shut−off valve.

4. Start the burner (see page 8).

5. Check the nozzle pressure in

accordance with the Wobbe index

and the output against the nozzle

pressure table on pages 44 to 46.

Note

During the adjustment, also check

the gas throughput by means of a

volumetric test.

6. Check and, if necessary, adjust the

nozzle pressure.

The selected gas pressure will be at

the burner approx. 10 s after the

burner start.

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