71 Variable Refrigerant Flow Outdoor Unit The condenser or outdoor unit of a variable refrigerant flow (VRF) system is the part of the heat pump responsible for either rejecting heat to the ambient environment or pulling heat from it. This is achieved through a vapor compression cycle. Similar as in a fan coil unit, a build-in fan circulates outdoor air across the condenser. Heat is transported to or from the condenser to the indoor evaporator via a refrigerant line. Table 6.8 Specifications Fuel Source Electricity Produces Hot or chilled refrigerant Efficiency COP = 2.5 – 3.5 Other Required Equipment VRF indoor unit or evaporator Back to: VRF System with Dedicated Outside Air
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