HVAC (Heating, Ventilation, and Air Conditioning) reps are professionals who specialize in the installation, maintenance, and repair of HVAC systems. They are responsible for ensuring that the system is running efficiently and safely, and that it meets the needs of the customer. HVAC reps must be knowledgeable in the various components of HVAC systems, such as the furnace, air conditioner, thermostat, and ductwork. They must also be familiar with the various types of HVAC systems, such as central air, split systems, and heat pumps. HVAC reps must also be able to troubleshoot and diagnose any problems that may arise with the system. They must also be able to recommend solutions to the customer in order to ensure that the system is running properly. HVAC reps must also be knowledgeable in the regulations and codes that govern the installation and maintenance of HVAC systems. They must also be able to provide the customer with the necessary paperwork and documentation to ensure that the system is up to code. HVAC reps must also be able to provide the customer with advice and guidance on how to properly maintain their system.