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a) Disconnect the power to the unit and disable/inhibit any extinguishing equipment that is connected to
the unit.
b) Use water and detergent to clean the detector viewing window and reflector. Rinse with a soft cloth,
cotton swab, or tissue.
c) Where dust, dirt or moisture accumulates on the window, first clean the window with a soft optical cloth
and detergent, and then rinse with a clean soft cloth, cotton swab, or tissue.