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• Do not block the motor hood ventilation openings and duct on the top of the power unit. Lack of ventilation airflow will cause the motor to overheat. • Do not locate the power unit in a high temperature area or where it is inaccessible, for example, an attic or crawl space. • Mount the built-in vacuum system power unit no less than 12 inches from the ceiling or any adjacent wall and at least 28 inches from the floor. If the unit is not exhausted outside, make sure the adjacent wall is at least