Figure 2-4. Fuel control valve (Used on all other models (Sheet 2 of 2).
d. Regulating Flame.
(1) Increase heat output by turning fuel control knob counterclockwise. Turn knob one position at a time, until
desired height of flame is obtained. Allow 10 minutes between each move.
NOTE
If burner is not hot enough, the flame will be red and smoky and a roaring, vibrating noise will
be noticed. This is not dangerous. Turn fuel control knob to LOW, (On Models 444-4ABJ and
444-4A, turn knob to FIRST MARK). Then turn knob gradually until desired flame is obtained.
(2) Decrease heat output by turning fuel control knob clockwise to desired flame height. Do not turn below
LOW (or FIRST MARK) or flame may go out.
2-6. Stopping the Equipment
a. To shut off heater:
(1) Turn fuel control knob to LOW.
(2) To, stop oil flow, reset VALVE TRIP LEVERS.
(3) After oil in burner is consumed, flame will go out.
b. To shut off heater (Models 441-4ABJ and 444-4A):
(1) Turn fuel control knob clockwise to OFF.
(2) To stop oil flow. raise RESET LEVER.
(3) After oil in burner is consumed, flame will go out.
CAUTION
Never light a hot burner
2-7
