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Preventative Maintenance - Problem Set 3.1

  1. What frequency should the following steps for HVAC preventative maintenance be performed?
    1. Cleaning air filters
    2. Cleaning ductwork
    3. Cleaning equipment cabinets
    4. Inspecting electrical elements
    5. Draining and cleaning condensate drain piping
    6. Changing refrigerant charge
    7. Cleaning and maintaining coil fins
    8. Testing reversing valve