What is the definition of a VFR HVAC? VFR stands for Variable Frequency Regulation and it is a type of HVAC system that uses a combination of different components to regulate the temperature in a home or commercial building. The system consists of a compressor, an evaporator, a condenser, and a thermostat. The compressor pumps refrigerant into the evaporator and then to the condenser, where the heat is removed from the air in the space. The thermostat monitors the temperature in the space and controls the speed of the compressor to maintain the desired temperature. The VFR HVACHVAC system has the ability to adjust the system’s performance to the changing demands of the space, ensuring that the desired temperature is maintained at all times. The VFR HVACHVAC system provides energy efficiency and is a great way to save money on energy costs. It is also an effective way to reduce the amount of energy used in a home or commercial building. A VFR H