HOUNO B - Page 49

INSTALLATION MANUAL 49
10. Adjust the maximum settings on the gas air unit according to the O
2
% values in
the table, see Gas Burner Settings (page 46). Before you begin the adjustment,
ensure that the burner is running.
11. Turn the Max screw counter-clockwise if the O
2
% is too high and turn it clockwise if
it is too low.
12. Touch RPM and select Min RPM for O
2
setting. (table) Turn the Min oset governor
clockwise if the O
2
% is too high and counter-clockwise if the O
2
% is too low. The
oset governor is very sensitive, so only turn it 1/10 of a round at a time.
13. When you have adjusted the Min rpm on the gas-air unit, you must check the Max
rpm again. Continiue ajusting max and minimum until the O
2
vlaue is stady.
14. When you have completed the final Max check, make a print of the O
2
% reading on
the flue-gas meter as proof that the oven has been properly adjusted.
15. Run the oven in manual mode, choose start in hot-air mode, and verify that the
oven is running without problems.