MARMON ANGELO PO COMBISTAR FX, Technical Manual, Page: 98 / 178

Copyright by Servizio Clienti ANGELO PO Spa
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4.4.4. Adjustment during the test
4.4.4.1. Values of the minimum ignition failure:
Offset Adjust gas valve (PR.ADJ.)
If the combustion values at minimum power do not correspond
to the recommended offset adjusting of the valve is needed.
To do this with a screwdriver unscrew the protective brass cap
and take a 4mm Allen wrench.
At this point, if the CO2 is lower than the recommended value,
screw clockwise (see figure at right), to enrich the mixture.
If the CO2 is higher unscrew slowly to lessen the mixture.
The adjustment is very sensitive and you should make small movements (a quarter turn
rotation involves a variation of about 1% CO2) and wait for the gas analyzer to detect the
change and stabilize.
Once done repeat the wizard test.
When the adjustment is finished refit the protective cap of the screw.
Attention: the pressure adjustment screw PR.ADJ. has no effect on
increasing the power of the oven.
In case of change without written permission by Angelo Po, the
warranty will be void