Variable Refrigerant Flow (VRF)

In variable refrigerant systems, refrigerant volumes are modulated and distributed to multiple areas of the building depending on cooling needs at any given time. With this type of system, multiple fan coils or air handlers can be connected to a single  condenser, allowing  condensing units to be shared between spaces without sharing air, (similar to chilled water systems with slightly less flexibility). Temperature is controlled by air handlers or fan coils and dehumidification is controlled by separate, standalone dehumidifiers. This approach may be a good option for cultivators seeking an improvement in energy efficiency and redundancy over standard light commercial HVAC systems, or cultivators whose authority having jurisdiction are calling out a specific EER for regulatory compliance.