BENSON AH150 - Page 34

Fig 28
Burner gives a
Too Much Air
sparky flame
-
Air /Fuel Mix
,--------
r-
-
Ratio Incorrect
r---
;--
r- r------
r---
I L-
Fuel Feed
r- r-
Restricted
~
Adjust Air
I
Damper
I
Check for Air in
Fuel Line
I
Check Fuel Press
Check Nozzle
Check Filter
Check Fuel Lines
Check Valves
Fig 29
,-------
Check Oil Press
,---
Insufficient
Combustion Air
~
Check Air
Damper
Check Nozzles
I---
Burner gives a
smokey flame
Poor
Combustion
r-
Check if
Correctly Fitted
I Check if Correct
Size
Check if
Damaged or
Worn
'---
-
-
-
Inadequate Flue
Draught
I
Check Flue
33