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 35.
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 2800-38 & 2800-41 Issue 1 08/08
Page 32
Summary of Contents for MDFL 2800 - 38
Page 5: ...MGN 3300 MGN 4000 Page 4 BURNER MOUNTING ARRANGEMENT MDFL 2800 38 2800 41 Issue 1 08 08 Page 4...
Page 7: ...MDFL 2800 38 2800 41 Issue 1 08 08 Page 6...
Page 19: ...MDFL 2800 38 2800 41 Issue 1 08 08 Page 18 VALVE PROVING SYSTEM LDU 11 Standard fitting...
Page 36: ...MDFL 2800 38 2800 42 Issue 2 08 08 Page 35 MODULATING CAM BOX...
Page 50: ...MDFL 2800 38 2800 41 Issue 1 08 08 Page 49 Performance Envelopes MDFL 2800 38 MDFL 2800 41...
Page 54: ...NOTES MDFL 2800 38 2800 41 Issue 1 08 08 Page 53...