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The official instruction by Aalborg for their boiler plant, burner type WH MS7Z. The burner is a pressure atomising burner with two nozzles for two-stage operation. It is capable of burning both diesel oil (DO) and heavy fuel oil (HFO). The design of the burner makes installation, adjustment and servicing easy. The burner housing is mounted on the boiler front with side hinges, enabling the burner to be swung out. In this case a switch immediately stops the burner. The electrical fan motor is fitted on the side of the housing and is directly connected to the fan wheel. Via coupling the same motor is connected to the oil pump which is a gear-wheel pump providing an operating pressure up to 30 bar...