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7. 7.1. without the supreme regulation
Switch off the boiler, disconnect the connector 2° on the diaphragm. Switch on again.
7.2. with the supreme regulation
Switch over the boiler to the reduced output through the supreme regulation.
8. Release the locking screw.
9. Set the reduced output by using the nut for setting the gas flow at a reduced output (fig. no. 16).
10. Tighten the locking screw.
11. Measure the gas flow on the gas meter ; if it doesn’t correspond to the nominal output (see tab. no.2) –
set the gas pressure at the nozzle in a way making sure that the required gas flow will be achieved
12. The gas flow at the reduced output can be adjusted by the regulation nut. (fig. no. 16).
13. Check the combustion purity by using the combustion gases analyser (NOx, CO)
1. Release the screw M3 with cylindrical head on
the setting disc (see fig. no 15).
2. Keep turning the setting ring.
Turning to the right: Flow increase.
Turning to the right: Flow decrease.
3. Tighten again the screwM3 with cylindrical head.
1. Open the safety valve
2. By turning the screwdriver set the required
output pressure.
Fig. no. 16
Setting the gas flow for reduced
output
Fig. no. 17
Setting the gas flow for nominal
output
Probe for measuring the
output pressure before the
gas multi-block
Setting ring
