9.
Check the oil consumption. If this is not correct for the full burner rating, the oil cam must be
adjusted as follows:-
a. Inch the burner to low flame and note the spill pressure.
b. To increase the minimum rate, adjust as shown on page 29.
c. Adjust the cam to give more eccentricity for more oil at high flame, and vice-versa.
d. Return to the minimum setting and compensate for any changes.
e. Inch the burner to high flame and again check the oil flow.
Continue to repeat a to d until the high flame oil rate is correct.
10. When a satisfactory flame is achieved, again check the line and spill pressures.
11. Inch the camshaft back to the low flame position. The oil consumption rate should now be
between 40 and 50% of the rated maximum.
12. Sample the flue products and check the smoke number. Adjust the combustion air volume as
necessary.
13. Check the burner performance throughout the range, adjusting the air cam profile as necessary
to give a clean and efficient flame.
When a satisfactory setting has been achieved, lock the air cam thumbscrews with the
grubscrews fitted in the side face of the cam body. Refit the modulating cam unit access cover.
14. Switch off the burner and the electricity supply to the burner.
MDFL 3300 & MDFL 4000 Issue 2 08/08
Page 28
Summary of Contents for MDFL 3300
Page 16: ...MDFL 3300 MDFL 4000 Issue 2 08 08 Page 15 VALVE PROVING SYSTEM LDU 11 Standard fitting...
Page 30: ...MDFL 3300 MDFL 4000 Issue 2 08 08 Page 29 MODULATING CAM BOX...
Page 43: ...Electrode Setting Details MDFL 3300 MDFL 4000 Issue 2 08 08 Page 42 All dimensions in mm...
Page 48: ...NOTES MDFL 3300 MDFL 4000 Issue 2 08 08 Page 47...
