Burner Operation and Control
2-18
750-211 (revised 2009)
Promethean Boilers, Model 4WI Manual
are satisfied, respectively, by sufficient combustion air pressure from the forced draft fan, pressurized air from the
air pump, and sufficient oil temperature and pressure.
FIGURE 2-17. Diagram for No. 6 Heavy Oil Flow (Steam-Electric Heater)
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