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DOT regulations, recovery cylinder safety fill limits (80%), and handling highly pressurized vessels. 2. Type I: Small Appliances
Once you have studied the cover-to-cover:
A significant portion of the manual defines these three distinct processes:
Expanded safety protocols for A2L (mildly flammable) and A3 (highly flammable) refrigerants like R-32 and R-290 (propane).
Do you need help finding or specific evacuation charts ?
Are you planning to take an or a proctored in-person exam ?
: Fundamental refrigeration principles and the use of pressure-temperature (P-T) charts.
This section is crucial for practical application. It defines the differences between: Removing refrigerant in any condition.