These are some of the topics Troy will cover- Different systems on the marketplace and how to identify them.Different types of technology available and how to highlight the features and benefits to your buyers or in your listing remarks.What a pound of Freon is and the financial impact of R-22.How do you know if the system is a Heat Pump or just an A/C unit.How to read the manufactures label to know the tonnage or size, refrigerant, the year built etc. which helps you to select th