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This Concept Map, created with IHMC CmapTools, has information related to: One boiler in Operation and Auxiliary Plant Operation 1, Fit flashing up HFO size atomiser tips to the burners. Commence circulating fuel oil through the main fuel rail to raise the temperature. Once ready Start a forced draught fan. Open atomising steam to the burners. Supply steam to the air heater. Reset all boiler tips. Place the boiler controls on manual and local in the IAS, Start a forced draught fan. Open atomising steam to the burners. Supply steam to the air heater. Reset all boiler tips. Place the boiler controls on manual and local in the IAS ???? Start with the boiler, One Boiler in Operation and Auxiliary Plant Operation Operate by opening Open the vents on the steam drum and superheater, and the drains on the desuperheater and superheater, on the non-operational boiler., Fill the boiler to approximately 80mm below the normal operating level, using the auxiliary feed pump on the auxiliary feed system, with suction and recirculation from the dearator. Ensure careful use of the filling valve and closely monitor the deaerator and boiler water levels. After that Fit flashing up HFO size atomiser tips to the burners. Commence circulating fuel oil through the main fuel rail to raise the temperature., Open the vents on the steam drum and superheater, and the drains on the desuperheater and superheater, on the non-operational boiler. Next Fill the boiler to approximately 80mm below the normal operating level, using the auxiliary feed pump on the auxiliary feed system, with suction and recirculation from the dearator. Ensure careful use of the filling valve and closely monitor the deaerator and boiler water levels.