Air/Ignition System

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Boiler water is heated by burning pulverized coal and primary air. Oil fired igniters light coal burners which continuously supply heat to generate steam. Forced air is injected directly into the boiler. Combustion by-products and heat move through the boiler and into the environmental system, in continuous one-way flow.

Large fans force primary and draft air through the ductwork, providing a positive pressure flow. For proper operation and safety, this flow must be maintained. Heater controls on the air pre-heater must be monitored to ensure the correct temperatures.