Use this annual preventive maintenance checklist to service AC split system evaporators in facilities. It outlines required tools and safety steps, including lockout/tagout and ladder practices. Follow detailed procedures to clean and inspect casings, coils, filters, condensate pans and lines, insulation, controls and stats, and condensate pumps. Clean and lubricate motors and fans, tighten electrical connections, megger 5 HP+ motors, verify operation in heating and cooling, calibrate sensors, check for leaks, record amperage, and log maintenance time.
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