What type of work is exempt from a mechanical permit?
A. Permits are not required for: 1. Portable heating appliances. 2. Portable ventilation appliances. 3. Portable cooling units. 4. Steam, hot- or chilled-water piping within any heating or cooling equipment regulated by this code. 5. Replacement of any minor part that does not alter approval of equipment or make such equipment unsafe. 6. Portable evaporative cooler. 7. Self contained refrigeration systems package-type equipment containing 10 pounds (4.54 kg) or less of refrigerant or that are actuated by motors of 1 horsepower (764W) or less in which all components of the refrigeration system are located within a single enclosure without the requirement for on-site assembly or piping of any kind whatsoever. 8. Portable fuel cell appliances that are connected to a fixed piping system and are not interconnected to a power grid. 9. Self contained portable refrigeration appliances. 10. Repair or replacement of interior or exterior wall and ceiling coverings, provided: a. Mechanical systems
