Transcription of HVAC Variable Refrigerant Flow Systems
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HVAC Variable Refrigerant Flow Systems
HVAC Variable Refrigerant Flow Systems Course No: M03-014 Credit: 3 PDH A. Bhatia Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY 10980 P: (877) 322-5800 F: (877) 322-4774 Variable Refrigerant Flow (VRF) Systems Variable Refrigerant flow (VRF) is an air-condition system configuration where there is one outdoor condensing unit and multiple indoor units. The term Variable Refrigerant flow refers to the ability of the system to control the amount of Refrigerant flowing to the multiple evaporators (indoor units), enabling the use of many evaporators of differing capacities and configurations connected to a single condensing unit.
VRV/VRF systems can be used for cooling only, heat pumping or heat recovery. On heat pump models there are two basic types of VRF system: heat pump systems and energy-recovery. VRF heat pump systems VRF heat pump systems permit heating or cooling in all of the indoor units but NOT simultaneous heating and cooling.
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