HOUNO B - Page 51

INSTALLATION MANUAL 51
15. Turn the Max screw counter-clockwise if the O
2
% is too high and turn it clockwise if
it is too low. Adjust the RPM for the gas-air unit to minimum RPM according to the
table, see Gas Burner Settings. (page 46)
Touch the clock button and select Min RPM 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 1/10 of a round at a time.
16. When you have adjusted the Min rpm on the gas-air unit, you must check the Max
rpm again.
17. 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.
18. Run the oven in manual mode, choose start in hot-air mode, and verify that the
oven is running without problems.
Note Remember to do the adjustment on both gas-air units if the oven has 2 (only 1.20
and 2.20)