Variable refrigerant flow systems (VRF)

VRF systems are capable of supplying cooling, heating, or both at the same time, in different areas, making them ideal for use in hotels, schools, office or retail buildings, and hospitals. VRF systems work similarly to vapor compression chiller systems, but with an extra component, an inverter, integrated into their design. The inverter works by adjusting the speed of the compressor, so that the volume of refrigerant flowing through the system changes to meet real-time cooling demands.

Why choose a VRF system?

In conventional systems, the compressor switches on and off depending on the cooling load, which both causes electricity surges and also reduces thermal control, shortening the life of the compressor. Alternatively, in conventional systems, refrigerant can be recirculated back into the compressor through a solenoid valve. This dramatically reduces the system’s overall energy efficiency, since the compressor runs in order to relieve pressure, without providing any cooling. Because the VRF system continually adjusts the speed of the compressor to match the cooling load, it saves energy, reduces wear-and-tear on the compressor, and also gives the individual occupants of a building more control over their own heating and cooling preferences.

Why choose SWEP BPHEs for your VRF system?

A SWEP brazed plate heat exchanger can be used as a subcooler to lower the temperature of the refrigerant, which will add stability to the system during operation by ensuring that the liquid remains cool as it travels through the lengthy and complex piping system. A SWEP BPHE can also be used as an economizer for the liquid piping system, to boost performance during extreme hot or cold weather.

Flexible and scalable

VRF systems let you control the amount of refrigerant flowing to the evaporator and make it possible to connect several evaporators, with different capacities, to a single condenser. VRF systems are energy-efficient, modular, and scalable.

Relevant products for VRF applications

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